parser: regenerate with lambda
[nit.git] / src / parser / parser_prod.nit
index aac684c..f1bd5d9 100644 (file)
 # Production AST nodes full definition.
 # This file was generated by SableCC (http://www.sablecc.org/).
-package parser_prod
+module parser_prod is generated, no_warning("missing-doc")
 
 import lexer
 intrude import parser_nodes
 private import tables
 
-redef class ANode
-       # Parent of the node in the AST
-       readable writable var _parent: nullable ANode
-
-       # Remove a child from the AST
-       fun remove_child(child: ANode)
+redef class AModule
+       init init_amodule (
+               n_moduledecl: nullable AModuledecl,
+               n_imports: Collection[Object], # Should be Collection[AImport]
+               n_extern_code_blocks: Collection[Object], # Should be Collection[AExternCodeBlock]
+               n_classdefs: Collection[Object] # Should be Collection[AClassdef]
+       )
        do
-               replace_child(child, null)
+               _n_moduledecl = n_moduledecl
+               if n_moduledecl != null then n_moduledecl.parent = self
+               self.n_imports.unsafe_add_all(n_imports)
+               self.n_extern_code_blocks.unsafe_add_all(n_extern_code_blocks)
+               self.n_classdefs.unsafe_add_all(n_classdefs)
        end
 
-       # Replace a child with an other node in the AST
-       fun replace_child(old_child: ANode, new_child: nullable ANode) is abstract
-
-       # Replace itself with an other node in the AST
-       fun replace_with(node: ANode)
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
        do
-               if (_parent != null) then
-                       _parent.replace_child(self, node)
+               if _n_moduledecl == old_child then
+                       n_moduledecl = new_child.as(nullable AModuledecl)
+                       return
                end
+               if n_imports.replace_child(old_child, new_child) then return
+               if n_extern_code_blocks.replace_child(old_child, new_child) then return
+               if n_classdefs.replace_child(old_child, new_child) then return
        end
 
-       # Visit all nodes in order.
-       # Thus, call "v.visit(e)" for each node e
-       fun visit_all(v: Visitor) is abstract
-end
-
-redef class Token
-       redef fun visit_all(v: Visitor) do end
-       redef fun replace_child(old_child: ANode, new_child: nullable ANode) do end
-end
-
-redef class Prod
-       redef fun replace_with(n: ANode)
-        do
-                super
-                assert n isa Prod
-                n.location = location
-        end
-end
+       redef fun n_moduledecl=(node)
+       do
+               _n_moduledecl = node
+               if node != null then node.parent = self
+       end
 
-# Abstract standard visitor
-class Visitor
-       # What the visitor do when a node is visited
-        # Concrete visitors should redefine this method.
-        protected fun visit(e: nullable ANode) is abstract
 
-        # Ask the visitor to visit a given node.
-        # Usually automatically called by visit_all* methods.
-       # This methos should not be redefined
-        fun enter_visit(e: nullable ANode)
+       redef fun visit_all(v: Visitor)
        do
-               var old = _current_node
-               _current_node = e
-               visit(e)
-               _current_node = old
+               v.enter_visit(_n_moduledecl)
+               n_imports.visit_all(v)
+               n_extern_code_blocks.visit_all(v)
+               n_classdefs.visit_all(v)
        end
-
-       # The current visited node
-       readable var _current_node: nullable ANode = null
 end
+redef class AModuledecl
+       init init_amoduledecl (
+               n_doc: nullable ADoc,
+               n_kwredef: nullable TKwredef,
+               n_visibility: nullable AVisibility,
+               n_kwmodule: nullable TKwmodule,
+               n_name: nullable AModuleName,
+               n_annotations: nullable AAnnotations
+       )
+       do
+               _n_doc = n_doc
+               if n_doc != null then n_doc.parent = self
+               _n_kwredef = n_kwredef
+               if n_kwredef != null then n_kwredef.parent = self
+               _n_visibility = n_visibility.as(not null)
+               n_visibility.parent = self
+               _n_kwmodule = n_kwmodule.as(not null)
+               n_kwmodule.parent = self
+               _n_name = n_name.as(not null)
+               n_name.parent = self
+               _n_annotations = n_annotations
+               if n_annotations != null then n_annotations.parent = self
+       end
 
-redef class AModule
-    private init empty_init do end
-
-    init init_amodule (
-            n_moduledecl: nullable AModuledecl,
-            n_imports: Collection[Object], # Should be Collection[AImport]
-            n_classdefs: Collection[Object] # Should be Collection[AClassdef]
-    )
-    do
-        empty_init
-        _n_moduledecl = n_moduledecl
-       if n_moduledecl != null then
-               n_moduledecl.parent = self
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_doc == old_child then
+                       n_doc = new_child.as(nullable ADoc)
+                       return
+               end
+               if _n_kwredef == old_child then
+                       n_kwredef = new_child.as(nullable TKwredef)
+                       return
+               end
+               if _n_visibility == old_child then
+                       n_visibility = new_child.as(AVisibility)
+                       return
+               end
+               if _n_kwmodule == old_child then
+                       n_kwmodule = new_child.as(TKwmodule)
+                       return
+               end
+               if _n_name == old_child then
+                       n_name = new_child.as(AModuleName)
+                       return
+               end
+               if _n_annotations == old_child then
+                       n_annotations = new_child.as(nullable AAnnotations)
+                       return
+               end
        end
-       for n in n_imports do
-               assert n isa AImport
-               _n_imports.add(n)
-               n.parent = self
+
+       redef fun n_doc=(node)
+       do
+               _n_doc = node
+               if node != null then node.parent = self
        end
-       for n in n_classdefs do
-               assert n isa AClassdef
-               _n_classdefs.add(n)
-               n.parent = self
+       redef fun n_kwredef=(node)
+       do
+               _n_kwredef = node
+               if node != null then node.parent = self
        end
-    end
-
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_moduledecl == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AModuledecl
-                _n_moduledecl = new_child
-           else
-               _n_moduledecl = null
-            end
-            return
+       redef fun n_visibility=(node)
+       do
+               _n_visibility = node
+               node.parent = self
        end
-        for i in [0.._n_imports.length[ do
-            if _n_imports[i] == old_child then
-                if new_child != null then
-                   assert new_child isa AImport
-                    _n_imports[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_imports.remove_at(i)
-                end
-                return
-            end
-        end
-        for i in [0.._n_classdefs.length[ do
-            if _n_classdefs[i] == old_child then
-                if new_child != null then
-                   assert new_child isa AClassdef
-                    _n_classdefs[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_classdefs.remove_at(i)
-                end
-                return
-            end
-        end
-    end
-
-    redef fun visit_all(v: Visitor)
-    do
-        if _n_moduledecl != null then
-            v.enter_visit(_n_moduledecl.as(not null))
-        end
-            for n in _n_imports do
-                v.enter_visit(n)
-           end
-            for n in _n_classdefs do
-                v.enter_visit(n)
-           end
-    end
-end
-redef class AModuledecl
-    private init empty_init do end
-
-    init init_amoduledecl (
-            n_doc: nullable ADoc,
-            n_kwmodule: nullable TKwmodule,
-            n_name: nullable AModuleName
-    )
-    do
-        empty_init
-        _n_doc = n_doc
-       if n_doc != null then
-               n_doc.parent = self
-       end
-        _n_kwmodule = n_kwmodule.as(not null)
-       n_kwmodule.parent = self
-        _n_name = n_name.as(not null)
-       n_name.parent = self
-    end
-
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_doc == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa ADoc
-                _n_doc = new_child
-           else
-               _n_doc = null
-            end
-            return
+       redef fun n_kwmodule=(node)
+       do
+               _n_kwmodule = node
+               node.parent = self
        end
-        if _n_kwmodule == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwmodule
-                _n_kwmodule = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_name=(node)
+       do
+               _n_name = node
+               node.parent = self
        end
-        if _n_name == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AModuleName
-                _n_name = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_annotations=(node)
+       do
+               _n_annotations = node
+               if node != null then node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        if _n_doc != null then
-            v.enter_visit(_n_doc.as(not null))
-        end
-        v.enter_visit(_n_kwmodule)
-        v.enter_visit(_n_name)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_doc)
+               v.enter_visit(_n_kwredef)
+               v.enter_visit(_n_visibility)
+               v.enter_visit(_n_kwmodule)
+               v.enter_visit(_n_name)
+               v.enter_visit(_n_annotations)
+       end
 end
 redef class AStdImport
-    private init empty_init do end
+       init init_astdimport (
+               n_visibility: nullable AVisibility,
+               n_kwimport: nullable TKwimport,
+               n_name: nullable AModuleName,
+               n_annotations: nullable AAnnotations
+       )
+       do
+               _n_visibility = n_visibility.as(not null)
+               n_visibility.parent = self
+               _n_kwimport = n_kwimport.as(not null)
+               n_kwimport.parent = self
+               _n_name = n_name.as(not null)
+               n_name.parent = self
+               _n_annotations = n_annotations
+               if n_annotations != null then n_annotations.parent = self
+       end
 
-    init init_astdimport (
-            n_visibility: nullable AVisibility,
-            n_kwimport: nullable TKwimport,
-            n_name: nullable AModuleName
-    )
-    do
-        empty_init
-        _n_visibility = n_visibility.as(not null)
-       n_visibility.parent = self
-        _n_kwimport = n_kwimport.as(not null)
-       n_kwimport.parent = self
-        _n_name = n_name.as(not null)
-       n_name.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_visibility == old_child then
+                       n_visibility = new_child.as(AVisibility)
+                       return
+               end
+               if _n_kwimport == old_child then
+                       n_kwimport = new_child.as(TKwimport)
+                       return
+               end
+               if _n_name == old_child then
+                       n_name = new_child.as(AModuleName)
+                       return
+               end
+               if _n_annotations == old_child then
+                       n_annotations = new_child.as(nullable AAnnotations)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_visibility == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AVisibility
-                _n_visibility = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_visibility=(node)
+       do
+               _n_visibility = node
+               node.parent = self
        end
-        if _n_kwimport == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwimport
-                _n_kwimport = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwimport=(node)
+       do
+               _n_kwimport = node
+               node.parent = self
        end
-        if _n_name == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AModuleName
-                _n_name = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_name=(node)
+       do
+               _n_name = node
+               node.parent = self
+       end
+       redef fun n_annotations=(node)
+       do
+               _n_annotations = node
+               if node != null then node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_visibility)
-        v.enter_visit(_n_kwimport)
-        v.enter_visit(_n_name)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_visibility)
+               v.enter_visit(_n_kwimport)
+               v.enter_visit(_n_name)
+               v.enter_visit(_n_annotations)
+       end
 end
 redef class ANoImport
-    private init empty_init do end
+       init init_anoimport (
+               n_visibility: nullable AVisibility,
+               n_kwimport: nullable TKwimport,
+               n_kwend: nullable TKwend
+       )
+       do
+               _n_visibility = n_visibility.as(not null)
+               n_visibility.parent = self
+               _n_kwimport = n_kwimport.as(not null)
+               n_kwimport.parent = self
+               _n_kwend = n_kwend.as(not null)
+               n_kwend.parent = self
+       end
 
-    init init_anoimport (
-            n_visibility: nullable AVisibility,
-            n_kwimport: nullable TKwimport,
-            n_kwend: nullable TKwend
-    )
-    do
-        empty_init
-        _n_visibility = n_visibility.as(not null)
-       n_visibility.parent = self
-        _n_kwimport = n_kwimport.as(not null)
-       n_kwimport.parent = self
-        _n_kwend = n_kwend.as(not null)
-       n_kwend.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_visibility == old_child then
+                       n_visibility = new_child.as(AVisibility)
+                       return
+               end
+               if _n_kwimport == old_child then
+                       n_kwimport = new_child.as(TKwimport)
+                       return
+               end
+               if _n_kwend == old_child then
+                       n_kwend = new_child.as(TKwend)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_visibility == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AVisibility
-                _n_visibility = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_visibility=(node)
+       do
+               _n_visibility = node
+               node.parent = self
        end
-        if _n_kwimport == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwimport
-                _n_kwimport = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwimport=(node)
+       do
+               _n_kwimport = node
+               node.parent = self
        end
-        if _n_kwend == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwend
-                _n_kwend = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwend=(node)
+       do
+               _n_kwend = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_visibility)
-        v.enter_visit(_n_kwimport)
-        v.enter_visit(_n_kwend)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_visibility)
+               v.enter_visit(_n_kwimport)
+               v.enter_visit(_n_kwend)
+       end
 end
 redef class APublicVisibility
-    private init empty_init do end
+       init init_apublicvisibility (
+               n_kwpublic: nullable TKwpublic
+       )
+       do
+               _n_kwpublic = n_kwpublic
+               if n_kwpublic != null then n_kwpublic.parent = self
+       end
 
-    init init_apublicvisibility
-    do
-        empty_init
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwpublic == old_child then
+                       n_kwpublic = new_child.as(nullable TKwpublic)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-    end
+       redef fun n_kwpublic=(node)
+       do
+               _n_kwpublic = node
+               if node != null then node.parent = self
+       end
 
-    redef fun visit_all(v: Visitor)
-    do
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwpublic)
+       end
 end
 redef class APrivateVisibility
-    private init empty_init do end
+       init init_aprivatevisibility (
+               n_kwprivate: nullable TKwprivate
+       )
+       do
+               _n_kwprivate = n_kwprivate.as(not null)
+               n_kwprivate.parent = self
+       end
 
-    init init_aprivatevisibility (
-            n_kwprivate: nullable TKwprivate
-    )
-    do
-        empty_init
-        _n_kwprivate = n_kwprivate.as(not null)
-       n_kwprivate.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwprivate == old_child then
+                       n_kwprivate = new_child.as(TKwprivate)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwprivate == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwprivate
-                _n_kwprivate = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwprivate=(node)
+       do
+               _n_kwprivate = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwprivate)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwprivate)
+       end
 end
 redef class AProtectedVisibility
-    private init empty_init do end
+       init init_aprotectedvisibility (
+               n_kwprotected: nullable TKwprotected
+       )
+       do
+               _n_kwprotected = n_kwprotected.as(not null)
+               n_kwprotected.parent = self
+       end
 
-    init init_aprotectedvisibility (
-            n_kwprotected: nullable TKwprotected
-    )
-    do
-        empty_init
-        _n_kwprotected = n_kwprotected.as(not null)
-       n_kwprotected.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwprotected == old_child then
+                       n_kwprotected = new_child.as(TKwprotected)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwprotected == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwprotected
-                _n_kwprotected = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwprotected=(node)
+       do
+               _n_kwprotected = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwprotected)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwprotected)
+       end
 end
 redef class AIntrudeVisibility
-    private init empty_init do end
+       init init_aintrudevisibility (
+               n_kwintrude: nullable TKwintrude
+       )
+       do
+               _n_kwintrude = n_kwintrude.as(not null)
+               n_kwintrude.parent = self
+       end
 
-    init init_aintrudevisibility (
-            n_kwintrude: nullable TKwintrude
-    )
-    do
-        empty_init
-        _n_kwintrude = n_kwintrude.as(not null)
-       n_kwintrude.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwintrude == old_child then
+                       n_kwintrude = new_child.as(TKwintrude)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwintrude == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwintrude
-                _n_kwintrude = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwintrude=(node)
+       do
+               _n_kwintrude = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwintrude)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwintrude)
+       end
 end
 redef class AStdClassdef
-    private init empty_init do end
-
-    init init_astdclassdef (
-            n_doc: nullable ADoc,
-            n_kwredef: nullable TKwredef,
-            n_visibility: nullable AVisibility,
-            n_classkind: nullable AClasskind,
-            n_id: nullable TClassid,
-            n_formaldefs: Collection[Object], # Should be Collection[AFormaldef]
-            n_superclasses: Collection[Object], # Should be Collection[ASuperclass]
-            n_propdefs: Collection[Object], # Should be Collection[APropdef]
-            n_kwend: nullable TKwend
-    )
-    do
-        empty_init
-        _n_doc = n_doc
-       if n_doc != null then
-               n_doc.parent = self
-       end
-        _n_kwredef = n_kwredef
-       if n_kwredef != null then
-               n_kwredef.parent = self
-       end
-        _n_visibility = n_visibility.as(not null)
-       n_visibility.parent = self
-        _n_classkind = n_classkind.as(not null)
-       n_classkind.parent = self
-        _n_id = n_id
-       if n_id != null then
-               n_id.parent = self
-       end
-       for n in n_formaldefs do
-               assert n isa AFormaldef
-               _n_formaldefs.add(n)
-               n.parent = self
-       end
-       for n in n_superclasses do
-               assert n isa ASuperclass
-               _n_superclasses.add(n)
-               n.parent = self
+       init init_astdclassdef (
+               n_doc: nullable ADoc,
+               n_kwredef: nullable TKwredef,
+               n_visibility: nullable AVisibility,
+               n_classkind: nullable AClasskind,
+               n_qid: nullable AQclassid,
+               n_obra: nullable TObra,
+               n_formaldefs: Collection[Object], # Should be Collection[AFormaldef]
+               n_cbra: nullable TCbra,
+               n_extern_code_block: nullable AExternCodeBlock,
+               n_propdefs: Collection[Object], # Should be Collection[APropdef]
+               n_kwend: nullable TKwend
+       )
+       do
+               _n_doc = n_doc
+               if n_doc != null then n_doc.parent = self
+               _n_kwredef = n_kwredef
+               if n_kwredef != null then n_kwredef.parent = self
+               _n_visibility = n_visibility.as(not null)
+               n_visibility.parent = self
+               _n_classkind = n_classkind.as(not null)
+               n_classkind.parent = self
+               _n_qid = n_qid
+               if n_qid != null then n_qid.parent = self
+               _n_obra = n_obra
+               if n_obra != null then n_obra.parent = self
+               self.n_formaldefs.unsafe_add_all(n_formaldefs)
+               _n_cbra = n_cbra
+               if n_cbra != null then n_cbra.parent = self
+               _n_extern_code_block = n_extern_code_block
+               if n_extern_code_block != null then n_extern_code_block.parent = self
+               self.n_propdefs.unsafe_add_all(n_propdefs)
+               _n_kwend = n_kwend.as(not null)
+               n_kwend.parent = self
        end
-       for n in n_propdefs do
-               assert n isa APropdef
-               _n_propdefs.add(n)
-               n.parent = self
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_doc == old_child then
+                       n_doc = new_child.as(nullable ADoc)
+                       return
+               end
+               if _n_kwredef == old_child then
+                       n_kwredef = new_child.as(nullable TKwredef)
+                       return
+               end
+               if _n_visibility == old_child then
+                       n_visibility = new_child.as(AVisibility)
+                       return
+               end
+               if _n_classkind == old_child then
+                       n_classkind = new_child.as(AClasskind)
+                       return
+               end
+               if _n_qid == old_child then
+                       n_qid = new_child.as(nullable AQclassid)
+                       return
+               end
+               if _n_obra == old_child then
+                       n_obra = new_child.as(nullable TObra)
+                       return
+               end
+               if n_formaldefs.replace_child(old_child, new_child) then return
+               if _n_cbra == old_child then
+                       n_cbra = new_child.as(nullable TCbra)
+                       return
+               end
+               if _n_extern_code_block == old_child then
+                       n_extern_code_block = new_child.as(nullable AExternCodeBlock)
+                       return
+               end
+               if n_propdefs.replace_child(old_child, new_child) then return
+               if _n_kwend == old_child then
+                       n_kwend = new_child.as(TKwend)
+                       return
+               end
        end
-        _n_kwend = n_kwend.as(not null)
-       n_kwend.parent = self
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_doc == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa ADoc
-                _n_doc = new_child
-           else
-               _n_doc = null
-            end
-            return
+       redef fun n_doc=(node)
+       do
+               _n_doc = node
+               if node != null then node.parent = self
        end
-        if _n_kwredef == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwredef
-                _n_kwredef = new_child
-           else
-               _n_kwredef = null
-            end
-            return
+       redef fun n_kwredef=(node)
+       do
+               _n_kwredef = node
+               if node != null then node.parent = self
        end
-        if _n_visibility == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AVisibility
-                _n_visibility = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_visibility=(node)
+       do
+               _n_visibility = node
+               node.parent = self
        end
-        if _n_classkind == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AClasskind
-                _n_classkind = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_classkind=(node)
+       do
+               _n_classkind = node
+               node.parent = self
        end
-        if _n_id == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TClassid
-                _n_id = new_child
-           else
-               _n_id = null
-            end
-            return
+       redef fun n_qid=(node)
+       do
+               _n_qid = node
+               if node != null then node.parent = self
        end
-        for i in [0.._n_formaldefs.length[ do
-            if _n_formaldefs[i] == old_child then
-                if new_child != null then
-                   assert new_child isa AFormaldef
-                    _n_formaldefs[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_formaldefs.remove_at(i)
-                end
-                return
-            end
-        end
-        for i in [0.._n_superclasses.length[ do
-            if _n_superclasses[i] == old_child then
-                if new_child != null then
-                   assert new_child isa ASuperclass
-                    _n_superclasses[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_superclasses.remove_at(i)
-                end
-                return
-            end
-        end
-        for i in [0.._n_propdefs.length[ do
-            if _n_propdefs[i] == old_child then
-                if new_child != null then
-                   assert new_child isa APropdef
-                    _n_propdefs[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_propdefs.remove_at(i)
-                end
-                return
-            end
-        end
-        if _n_kwend == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwend
-                _n_kwend = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_obra=(node)
+       do
+               _n_obra = node
+               if node != null then node.parent = self
+       end
+       redef fun n_cbra=(node)
+       do
+               _n_cbra = node
+               if node != null then node.parent = self
+       end
+       redef fun n_extern_code_block=(node)
+       do
+               _n_extern_code_block = node
+               if node != null then node.parent = self
+       end
+       redef fun n_kwend=(node)
+       do
+               _n_kwend = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        if _n_doc != null then
-            v.enter_visit(_n_doc.as(not null))
-        end
-        if _n_kwredef != null then
-            v.enter_visit(_n_kwredef.as(not null))
-        end
-        v.enter_visit(_n_visibility)
-        v.enter_visit(_n_classkind)
-        if _n_id != null then
-            v.enter_visit(_n_id.as(not null))
-        end
-            for n in _n_formaldefs do
-                v.enter_visit(n)
-           end
-            for n in _n_superclasses do
-                v.enter_visit(n)
-           end
-            for n in _n_propdefs do
-                v.enter_visit(n)
-           end
-        v.enter_visit(_n_kwend)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_doc)
+               v.enter_visit(_n_kwredef)
+               v.enter_visit(_n_visibility)
+               v.enter_visit(_n_classkind)
+               v.enter_visit(_n_qid)
+               v.enter_visit(_n_obra)
+               n_formaldefs.visit_all(v)
+               v.enter_visit(_n_cbra)
+               v.enter_visit(_n_extern_code_block)
+               n_propdefs.visit_all(v)
+               v.enter_visit(_n_kwend)
+       end
 end
 redef class ATopClassdef
-    private init empty_init do end
+       init init_atopclassdef (
+               n_propdefs: Collection[Object] # Should be Collection[APropdef]
+       )
+       do
+               self.n_propdefs.unsafe_add_all(n_propdefs)
+       end
 
-    init init_atopclassdef (
-            n_propdefs: Collection[Object] # Should be Collection[APropdef]
-    )
-    do
-        empty_init
-       for n in n_propdefs do
-               assert n isa APropdef
-               _n_propdefs.add(n)
-               n.parent = self
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if n_propdefs.replace_child(old_child, new_child) then return
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        for i in [0.._n_propdefs.length[ do
-            if _n_propdefs[i] == old_child then
-                if new_child != null then
-                   assert new_child isa APropdef
-                    _n_propdefs[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_propdefs.remove_at(i)
-                end
-                return
-            end
-        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-            for n in _n_propdefs do
-                v.enter_visit(n)
-           end
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               n_propdefs.visit_all(v)
+       end
 end
 redef class AMainClassdef
-    private init empty_init do end
+       init init_amainclassdef (
+               n_propdefs: Collection[Object] # Should be Collection[APropdef]
+       )
+       do
+               self.n_propdefs.unsafe_add_all(n_propdefs)
+       end
 
-    init init_amainclassdef (
-            n_propdefs: Collection[Object] # Should be Collection[APropdef]
-    )
-    do
-        empty_init
-       for n in n_propdefs do
-               assert n isa APropdef
-               _n_propdefs.add(n)
-               n.parent = self
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if n_propdefs.replace_child(old_child, new_child) then return
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        for i in [0.._n_propdefs.length[ do
-            if _n_propdefs[i] == old_child then
-                if new_child != null then
-                   assert new_child isa APropdef
-                    _n_propdefs[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_propdefs.remove_at(i)
-                end
-                return
-            end
-        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-            for n in _n_propdefs do
-                v.enter_visit(n)
-           end
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               n_propdefs.visit_all(v)
+       end
 end
 redef class AConcreteClasskind
-    private init empty_init do end
+       init init_aconcreteclasskind (
+               n_kwclass: nullable TKwclass
+       )
+       do
+               _n_kwclass = n_kwclass.as(not null)
+               n_kwclass.parent = self
+       end
 
-    init init_aconcreteclasskind (
-            n_kwclass: nullable TKwclass
-    )
-    do
-        empty_init
-        _n_kwclass = n_kwclass.as(not null)
-       n_kwclass.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwclass == old_child then
+                       n_kwclass = new_child.as(TKwclass)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwclass == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwclass
-                _n_kwclass = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwclass=(node)
+       do
+               _n_kwclass = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwclass)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwclass)
+       end
 end
 redef class AAbstractClasskind
-    private init empty_init do end
+       init init_aabstractclasskind (
+               n_kwabstract: nullable TKwabstract,
+               n_kwclass: nullable TKwclass
+       )
+       do
+               _n_kwabstract = n_kwabstract.as(not null)
+               n_kwabstract.parent = self
+               _n_kwclass = n_kwclass.as(not null)
+               n_kwclass.parent = self
+       end
 
-    init init_aabstractclasskind (
-            n_kwabstract: nullable TKwabstract,
-            n_kwclass: nullable TKwclass
-    )
-    do
-        empty_init
-        _n_kwabstract = n_kwabstract.as(not null)
-       n_kwabstract.parent = self
-        _n_kwclass = n_kwclass.as(not null)
-       n_kwclass.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwabstract == old_child then
+                       n_kwabstract = new_child.as(TKwabstract)
+                       return
+               end
+               if _n_kwclass == old_child then
+                       n_kwclass = new_child.as(TKwclass)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwabstract == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwabstract
-                _n_kwabstract = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwabstract=(node)
+       do
+               _n_kwabstract = node
+               node.parent = self
        end
-        if _n_kwclass == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwclass
-                _n_kwclass = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwclass=(node)
+       do
+               _n_kwclass = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwabstract)
-        v.enter_visit(_n_kwclass)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwabstract)
+               v.enter_visit(_n_kwclass)
+       end
 end
 redef class AInterfaceClasskind
-    private init empty_init do end
+       init init_ainterfaceclasskind (
+               n_kwinterface: nullable TKwinterface
+       )
+       do
+               _n_kwinterface = n_kwinterface.as(not null)
+               n_kwinterface.parent = self
+       end
 
-    init init_ainterfaceclasskind (
-            n_kwinterface: nullable TKwinterface
-    )
-    do
-        empty_init
-        _n_kwinterface = n_kwinterface.as(not null)
-       n_kwinterface.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwinterface == old_child then
+                       n_kwinterface = new_child.as(TKwinterface)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwinterface == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwinterface
-                _n_kwinterface = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwinterface=(node)
+       do
+               _n_kwinterface = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwinterface)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwinterface)
+       end
 end
 redef class AEnumClasskind
-    private init empty_init do end
+       init init_aenumclasskind (
+               n_kwenum: nullable TKwenum
+       )
+       do
+               _n_kwenum = n_kwenum.as(not null)
+               n_kwenum.parent = self
+       end
 
-    init init_aenumclasskind (
-            n_kwenum: nullable TKwenum
-    )
-    do
-        empty_init
-        _n_kwenum = n_kwenum.as(not null)
-       n_kwenum.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwenum == old_child then
+                       n_kwenum = new_child.as(TKwenum)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwenum == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwenum
-                _n_kwenum = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwenum=(node)
+       do
+               _n_kwenum = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwenum)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwenum)
+       end
 end
 redef class AExternClasskind
-    private init empty_init do end
+       init init_aexternclasskind (
+               n_kwextern: nullable TKwextern,
+               n_kwclass: nullable TKwclass
+       )
+       do
+               _n_kwextern = n_kwextern.as(not null)
+               n_kwextern.parent = self
+               _n_kwclass = n_kwclass
+               if n_kwclass != null then n_kwclass.parent = self
+       end
 
-    init init_aexternclasskind (
-            n_kwextern: nullable TKwextern
-    )
-    do
-        empty_init
-        _n_kwextern = n_kwextern.as(not null)
-       n_kwextern.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwextern == old_child then
+                       n_kwextern = new_child.as(TKwextern)
+                       return
+               end
+               if _n_kwclass == old_child then
+                       n_kwclass = new_child.as(nullable TKwclass)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwextern == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwextern
-                _n_kwextern = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwextern=(node)
+       do
+               _n_kwextern = node
+               node.parent = self
+       end
+       redef fun n_kwclass=(node)
+       do
+               _n_kwclass = node
+               if node != null then node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwextern)
-    end
-end
-redef class AFormaldef
-    private init empty_init do end
 
-    init init_aformaldef (
-            n_id: nullable TClassid,
-            n_type: nullable AType
-    )
-    do
-        empty_init
-        _n_id = n_id.as(not null)
-       n_id.parent = self
-        _n_type = n_type
-       if n_type != null then
-               n_type.parent = self
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwextern)
+               v.enter_visit(_n_kwclass)
+       end
+end
+redef class ASubsetClasskind
+       init init_asubsetclasskind (
+               n_kwsubset: nullable TKwsubset
+       )
+       do
+               _n_kwsubset = n_kwsubset.as(not null)
+               n_kwsubset.parent = self
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_id == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TClassid
-                _n_id = new_child
-           else
-               abort
-            end
-            return
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwsubset == old_child then
+                       n_kwsubset = new_child.as(TKwsubset)
+                       return
+               end
        end
-        if _n_type == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AType
-                _n_type = new_child
-           else
-               _n_type = null
-            end
-            return
+
+       redef fun n_kwsubset=(node)
+       do
+               _n_kwsubset = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_id)
-        if _n_type != null then
-            v.enter_visit(_n_type.as(not null))
-        end
-    end
-end
-redef class ASuperclass
-    private init empty_init do end
 
-    init init_asuperclass (
-            n_kwspecial: nullable TKwspecial,
-            n_kwsuper: nullable TKwsuper,
-            n_type: nullable AType
-    )
-    do
-        empty_init
-        _n_kwspecial = n_kwspecial
-       if n_kwspecial != null then
-               n_kwspecial.parent = self
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwsubset)
        end
-        _n_kwsuper = n_kwsuper
-       if n_kwsuper != null then
-               n_kwsuper.parent = self
+end
+redef class AFormaldef
+       init init_aformaldef (
+               n_id: nullable TClassid,
+               n_type: nullable AType,
+               n_annotations: nullable AAnnotations
+       )
+       do
+               _n_id = n_id.as(not null)
+               n_id.parent = self
+               _n_type = n_type
+               if n_type != null then n_type.parent = self
+               _n_annotations = n_annotations
+               if n_annotations != null then n_annotations.parent = self
        end
-        _n_type = n_type.as(not null)
-       n_type.parent = self
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwspecial == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwspecial
-                _n_kwspecial = new_child
-           else
-               _n_kwspecial = null
-            end
-            return
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_id == old_child then
+                       n_id = new_child.as(TClassid)
+                       return
+               end
+               if _n_type == old_child then
+                       n_type = new_child.as(nullable AType)
+                       return
+               end
+               if _n_annotations == old_child then
+                       n_annotations = new_child.as(nullable AAnnotations)
+                       return
+               end
        end
-        if _n_kwsuper == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwsuper
-                _n_kwsuper = new_child
-           else
-               _n_kwsuper = null
-            end
-            return
+
+       redef fun n_id=(node)
+       do
+               _n_id = node
+               node.parent = self
        end
-        if _n_type == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AType
-                _n_type = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_type=(node)
+       do
+               _n_type = node
+               if node != null then node.parent = self
+       end
+       redef fun n_annotations=(node)
+       do
+               _n_annotations = node
+               if node != null then node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        if _n_kwspecial != null then
-            v.enter_visit(_n_kwspecial.as(not null))
-        end
-        if _n_kwsuper != null then
-            v.enter_visit(_n_kwsuper.as(not null))
-        end
-        v.enter_visit(_n_type)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_id)
+               v.enter_visit(_n_type)
+               v.enter_visit(_n_annotations)
+       end
 end
 redef class AAttrPropdef
-    private init empty_init do end
-
-    init init_aattrpropdef (
-            n_doc: nullable ADoc,
-            n_readable: nullable AAble,
-            n_writable: nullable AAble,
-            n_kwredef: nullable TKwredef,
-            n_visibility: nullable AVisibility,
-            n_kwvar: nullable TKwvar,
-            n_id: nullable TAttrid,
-            n_id2: nullable TId,
-            n_type: nullable AType,
-            n_expr: nullable AExpr
-    )
-    do
-        empty_init
-        _n_doc = n_doc
-       if n_doc != null then
-               n_doc.parent = self
-       end
-        _n_readable = n_readable
-       if n_readable != null then
-               n_readable.parent = self
-       end
-        _n_writable = n_writable
-       if n_writable != null then
-               n_writable.parent = self
-       end
-        _n_kwredef = n_kwredef
-       if n_kwredef != null then
-               n_kwredef.parent = self
-       end
-        _n_visibility = n_visibility.as(not null)
-       n_visibility.parent = self
-        _n_kwvar = n_kwvar.as(not null)
-       n_kwvar.parent = self
-        _n_id = n_id
-       if n_id != null then
-               n_id.parent = self
-       end
-        _n_id2 = n_id2
-       if n_id2 != null then
+       init init_aattrpropdef (
+               n_doc: nullable ADoc,
+               n_kwredef: nullable TKwredef,
+               n_visibility: nullable AVisibility,
+               n_kwvar: nullable TKwvar,
+               n_id2: nullable TId,
+               n_type: nullable AType,
+               n_assign: nullable TAssign,
+               n_expr: nullable AExpr,
+               n_annotations: nullable AAnnotations,
+               n_kwdo: nullable TKwdo,
+               n_block: nullable AExpr,
+               n_kwend: nullable TKwend
+       )
+       do
+               _n_doc = n_doc
+               if n_doc != null then n_doc.parent = self
+               _n_kwredef = n_kwredef
+               if n_kwredef != null then n_kwredef.parent = self
+               _n_visibility = n_visibility.as(not null)
+               n_visibility.parent = self
+               _n_kwvar = n_kwvar.as(not null)
+               n_kwvar.parent = self
+               _n_id2 = n_id2.as(not null)
                n_id2.parent = self
+               _n_type = n_type
+               if n_type != null then n_type.parent = self
+               _n_assign = n_assign
+               if n_assign != null then n_assign.parent = self
+               _n_expr = n_expr
+               if n_expr != null then n_expr.parent = self
+               _n_annotations = n_annotations
+               if n_annotations != null then n_annotations.parent = self
+               _n_kwdo = n_kwdo
+               if n_kwdo != null then n_kwdo.parent = self
+               _n_block = n_block
+               if n_block != null then n_block.parent = self
+               _n_kwend = n_kwend
+               if n_kwend != null then n_kwend.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_doc == old_child then
+                       n_doc = new_child.as(nullable ADoc)
+                       return
+               end
+               if _n_kwredef == old_child then
+                       n_kwredef = new_child.as(nullable TKwredef)
+                       return
+               end
+               if _n_visibility == old_child then
+                       n_visibility = new_child.as(AVisibility)
+                       return
+               end
+               if _n_kwvar == old_child then
+                       n_kwvar = new_child.as(TKwvar)
+                       return
+               end
+               if _n_id2 == old_child then
+                       n_id2 = new_child.as(TId)
+                       return
+               end
+               if _n_type == old_child then
+                       n_type = new_child.as(nullable AType)
+                       return
+               end
+               if _n_assign == old_child then
+                       n_assign = new_child.as(nullable TAssign)
+                       return
+               end
+               if _n_expr == old_child then
+                       n_expr = new_child.as(nullable AExpr)
+                       return
+               end
+               if _n_annotations == old_child then
+                       n_annotations = new_child.as(nullable AAnnotations)
+                       return
+               end
+               if _n_kwdo == old_child then
+                       n_kwdo = new_child.as(nullable TKwdo)
+                       return
+               end
+               if _n_block == old_child then
+                       n_block = new_child.as(nullable AExpr)
+                       return
+               end
+               if _n_kwend == old_child then
+                       n_kwend = new_child.as(nullable TKwend)
+                       return
+               end
        end
-        _n_type = n_type
-       if n_type != null then
-               n_type.parent = self
+
+       redef fun n_doc=(node)
+       do
+               _n_doc = node
+               if node != null then node.parent = self
        end
-        _n_expr = n_expr
-       if n_expr != null then
-               n_expr.parent = self
+       redef fun n_kwredef=(node)
+       do
+               _n_kwredef = node
+               if node != null then node.parent = self
        end
-    end
-
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_doc == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa ADoc
-                _n_doc = new_child
-           else
-               _n_doc = null
-            end
-            return
+       redef fun n_visibility=(node)
+       do
+               _n_visibility = node
+               node.parent = self
        end
-        if _n_readable == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AAble
-                _n_readable = new_child
-           else
-               _n_readable = null
-            end
-            return
+       redef fun n_kwvar=(node)
+       do
+               _n_kwvar = node
+               node.parent = self
        end
-        if _n_writable == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AAble
-                _n_writable = new_child
-           else
-               _n_writable = null
-            end
-            return
+       redef fun n_id2=(node)
+       do
+               _n_id2 = node
+               node.parent = self
        end
-        if _n_kwredef == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwredef
-                _n_kwredef = new_child
-           else
-               _n_kwredef = null
-            end
-            return
+       redef fun n_type=(node)
+       do
+               _n_type = node
+               if node != null then node.parent = self
        end
-        if _n_visibility == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AVisibility
-                _n_visibility = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_assign=(node)
+       do
+               _n_assign = node
+               if node != null then node.parent = self
        end
-        if _n_kwvar == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwvar
-                _n_kwvar = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               if node != null then node.parent = self
        end
-        if _n_id == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TAttrid
-                _n_id = new_child
-           else
-               _n_id = null
-            end
-            return
+       redef fun n_annotations=(node)
+       do
+               _n_annotations = node
+               if node != null then node.parent = self
        end
-        if _n_id2 == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TId
-                _n_id2 = new_child
-           else
-               _n_id2 = null
-            end
-            return
+       redef fun n_kwdo=(node)
+       do
+               _n_kwdo = node
+               if node != null then node.parent = self
        end
-        if _n_type == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AType
-                _n_type = new_child
-           else
-               _n_type = null
-            end
-            return
+       redef fun n_block=(node)
+       do
+               _n_block = node
+               if node != null then node.parent = self
        end
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               _n_expr = null
-            end
-            return
+       redef fun n_kwend=(node)
+       do
+               _n_kwend = node
+               if node != null then node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        if _n_doc != null then
-            v.enter_visit(_n_doc.as(not null))
-        end
-        if _n_readable != null then
-            v.enter_visit(_n_readable.as(not null))
-        end
-        if _n_writable != null then
-            v.enter_visit(_n_writable.as(not null))
-        end
-        if _n_kwredef != null then
-            v.enter_visit(_n_kwredef.as(not null))
-        end
-        v.enter_visit(_n_visibility)
-        v.enter_visit(_n_kwvar)
-        if _n_id != null then
-            v.enter_visit(_n_id.as(not null))
-        end
-        if _n_id2 != null then
-            v.enter_visit(_n_id2.as(not null))
-        end
-        if _n_type != null then
-            v.enter_visit(_n_type.as(not null))
-        end
-        if _n_expr != null then
-            v.enter_visit(_n_expr.as(not null))
-        end
-    end
-end
-redef class AMethPropdef
-    private init empty_init do end
-
-    init init_amethpropdef (
-            n_doc: nullable ADoc,
-            n_kwredef: nullable TKwredef,
-            n_visibility: nullable AVisibility,
-            n_methid: nullable AMethid,
-            n_signature: nullable ASignature
-    )
-    do
-        empty_init
-        _n_doc = n_doc
-       if n_doc != null then
-               n_doc.parent = self
-       end
-        _n_kwredef = n_kwredef
-       if n_kwredef != null then
-               n_kwredef.parent = self
-       end
-        _n_visibility = n_visibility.as(not null)
-       n_visibility.parent = self
-        _n_methid = n_methid.as(not null)
-       n_methid.parent = self
-        _n_signature = n_signature.as(not null)
-       n_signature.parent = self
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_doc == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa ADoc
-                _n_doc = new_child
-           else
-               _n_doc = null
-            end
-            return
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_doc)
+               v.enter_visit(_n_kwredef)
+               v.enter_visit(_n_visibility)
+               v.enter_visit(_n_kwvar)
+               v.enter_visit(_n_id2)
+               v.enter_visit(_n_type)
+               v.enter_visit(_n_assign)
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_annotations)
+               v.enter_visit(_n_kwdo)
+               v.enter_visit(_n_block)
+               v.enter_visit(_n_kwend)
        end
-        if _n_kwredef == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwredef
-                _n_kwredef = new_child
-           else
-               _n_kwredef = null
-            end
-            return
+end
+redef class AMainMethPropdef
+       init init_amainmethpropdef (
+               n_kwredef: nullable TKwredef,
+               n_block: nullable AExpr
+       )
+       do
+               _n_kwredef = n_kwredef
+               if n_kwredef != null then n_kwredef.parent = self
+               _n_block = n_block
+               if n_block != null then n_block.parent = self
        end
-        if _n_visibility == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AVisibility
-                _n_visibility = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwredef == old_child then
+                       n_kwredef = new_child.as(nullable TKwredef)
+                       return
+               end
+               if _n_block == old_child then
+                       n_block = new_child.as(nullable AExpr)
+                       return
+               end
        end
-        if _n_methid == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AMethid
-                _n_methid = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun n_kwredef=(node)
+       do
+               _n_kwredef = node
+               if node != null then node.parent = self
        end
-        if _n_signature == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa ASignature
-                _n_signature = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_block=(node)
+       do
+               _n_block = node
+               if node != null then node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        if _n_doc != null then
-            v.enter_visit(_n_doc.as(not null))
-        end
-        if _n_kwredef != null then
-            v.enter_visit(_n_kwredef.as(not null))
-        end
-        v.enter_visit(_n_visibility)
-        v.enter_visit(_n_methid)
-        v.enter_visit(_n_signature)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwredef)
+               v.enter_visit(_n_block)
+       end
 end
-redef class ADeferredMethPropdef
-    private init empty_init do end
-
-    init init_adeferredmethpropdef (
-            n_doc: nullable ADoc,
-            n_kwredef: nullable TKwredef,
-            n_visibility: nullable AVisibility,
-            n_kwmeth: nullable TKwmeth,
-            n_methid: nullable AMethid,
-            n_signature: nullable ASignature
-    )
-    do
-        empty_init
-        _n_doc = n_doc
-       if n_doc != null then
-               n_doc.parent = self
-       end
-        _n_kwredef = n_kwredef
-       if n_kwredef != null then
-               n_kwredef.parent = self
-       end
-        _n_visibility = n_visibility.as(not null)
-       n_visibility.parent = self
-        _n_kwmeth = n_kwmeth.as(not null)
-       n_kwmeth.parent = self
-        _n_methid = n_methid.as(not null)
-       n_methid.parent = self
-        _n_signature = n_signature.as(not null)
-       n_signature.parent = self
-    end
+redef class ATypePropdef
+       init init_atypepropdef (
+               n_doc: nullable ADoc,
+               n_kwredef: nullable TKwredef,
+               n_visibility: nullable AVisibility,
+               n_kwtype: nullable TKwtype,
+               n_qid: nullable AQclassid,
+               n_type: nullable AType,
+               n_annotations: nullable AAnnotations
+       )
+       do
+               _n_doc = n_doc
+               if n_doc != null then n_doc.parent = self
+               _n_kwredef = n_kwredef
+               if n_kwredef != null then n_kwredef.parent = self
+               _n_visibility = n_visibility.as(not null)
+               n_visibility.parent = self
+               _n_kwtype = n_kwtype.as(not null)
+               n_kwtype.parent = self
+               _n_qid = n_qid.as(not null)
+               n_qid.parent = self
+               _n_type = n_type.as(not null)
+               n_type.parent = self
+               _n_annotations = n_annotations
+               if n_annotations != null then n_annotations.parent = self
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_doc == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa ADoc
-                _n_doc = new_child
-           else
-               _n_doc = null
-            end
-            return
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_doc == old_child then
+                       n_doc = new_child.as(nullable ADoc)
+                       return
+               end
+               if _n_kwredef == old_child then
+                       n_kwredef = new_child.as(nullable TKwredef)
+                       return
+               end
+               if _n_visibility == old_child then
+                       n_visibility = new_child.as(AVisibility)
+                       return
+               end
+               if _n_kwtype == old_child then
+                       n_kwtype = new_child.as(TKwtype)
+                       return
+               end
+               if _n_qid == old_child then
+                       n_qid = new_child.as(AQclassid)
+                       return
+               end
+               if _n_type == old_child then
+                       n_type = new_child.as(AType)
+                       return
+               end
+               if _n_annotations == old_child then
+                       n_annotations = new_child.as(nullable AAnnotations)
+                       return
+               end
        end
-        if _n_kwredef == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwredef
-                _n_kwredef = new_child
-           else
-               _n_kwredef = null
-            end
-            return
+
+       redef fun n_doc=(node)
+       do
+               _n_doc = node
+               if node != null then node.parent = self
        end
-        if _n_visibility == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AVisibility
-                _n_visibility = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwredef=(node)
+       do
+               _n_kwredef = node
+               if node != null then node.parent = self
        end
-        if _n_kwmeth == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwmeth
-                _n_kwmeth = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_visibility=(node)
+       do
+               _n_visibility = node
+               node.parent = self
        end
-        if _n_methid == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AMethid
-                _n_methid = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwtype=(node)
+       do
+               _n_kwtype = node
+               node.parent = self
        end
-        if _n_signature == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa ASignature
-                _n_signature = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_qid=(node)
+       do
+               _n_qid = node
+               node.parent = self
+       end
+       redef fun n_type=(node)
+       do
+               _n_type = node
+               node.parent = self
+       end
+       redef fun n_annotations=(node)
+       do
+               _n_annotations = node
+               if node != null then node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        if _n_doc != null then
-            v.enter_visit(_n_doc.as(not null))
-        end
-        if _n_kwredef != null then
-            v.enter_visit(_n_kwredef.as(not null))
-        end
-        v.enter_visit(_n_visibility)
-        v.enter_visit(_n_kwmeth)
-        v.enter_visit(_n_methid)
-        v.enter_visit(_n_signature)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_doc)
+               v.enter_visit(_n_kwredef)
+               v.enter_visit(_n_visibility)
+               v.enter_visit(_n_kwtype)
+               v.enter_visit(_n_qid)
+               v.enter_visit(_n_type)
+               v.enter_visit(_n_annotations)
+       end
 end
-redef class AInternMethPropdef
-    private init empty_init do end
-
-    init init_ainternmethpropdef (
-            n_doc: nullable ADoc,
-            n_kwredef: nullable TKwredef,
-            n_visibility: nullable AVisibility,
-            n_kwmeth: nullable TKwmeth,
-            n_methid: nullable AMethid,
-            n_signature: nullable ASignature
-    )
-    do
-        empty_init
-        _n_doc = n_doc
-       if n_doc != null then
-               n_doc.parent = self
-       end
-        _n_kwredef = n_kwredef
-       if n_kwredef != null then
-               n_kwredef.parent = self
-       end
-        _n_visibility = n_visibility.as(not null)
-       n_visibility.parent = self
-        _n_kwmeth = n_kwmeth.as(not null)
-       n_kwmeth.parent = self
-        _n_methid = n_methid.as(not null)
-       n_methid.parent = self
-        _n_signature = n_signature.as(not null)
-       n_signature.parent = self
-    end
+redef class AMethPropdef
+       init init_amethpropdef (
+               n_doc: nullable ADoc,
+               n_kwredef: nullable TKwredef,
+               n_visibility: nullable AVisibility,
+               n_kwmeth: nullable TKwmeth,
+               n_kwinit: nullable TKwinit,
+               n_kwisa: nullable TKwisa,
+               n_kwnew: nullable TKwnew,
+               n_methid: nullable AMethid,
+               n_signature: nullable ASignature,
+               n_annotations: nullable AAnnotations,
+               n_extern_calls: nullable AExternCalls,
+               n_extern_code_block: nullable AExternCodeBlock,
+               n_kwdo: nullable TKwdo,
+               n_block: nullable AExpr,
+               n_kwend: nullable TKwend
+       )
+       do
+               _n_doc = n_doc
+               if n_doc != null then n_doc.parent = self
+               _n_kwredef = n_kwredef
+               if n_kwredef != null then n_kwredef.parent = self
+               _n_visibility = n_visibility.as(not null)
+               n_visibility.parent = self
+               _n_kwmeth = n_kwmeth
+               if n_kwmeth != null then n_kwmeth.parent = self
+               _n_kwinit = n_kwinit
+               if n_kwinit != null then n_kwinit.parent = self
+               _n_kwisa = n_kwisa
+               if n_kwisa != null then n_kwisa.parent = self
+               _n_kwnew = n_kwnew
+               if n_kwnew != null then n_kwnew.parent = self
+               _n_methid = n_methid
+               if n_methid != null then n_methid.parent = self
+               _n_signature = n_signature.as(not null)
+               n_signature.parent = self
+               _n_annotations = n_annotations
+               if n_annotations != null then n_annotations.parent = self
+               _n_extern_calls = n_extern_calls
+               if n_extern_calls != null then n_extern_calls.parent = self
+               _n_extern_code_block = n_extern_code_block
+               if n_extern_code_block != null then n_extern_code_block.parent = self
+               _n_kwdo = n_kwdo
+               if n_kwdo != null then n_kwdo.parent = self
+               _n_block = n_block
+               if n_block != null then n_block.parent = self
+               _n_kwend = n_kwend
+               if n_kwend != null then n_kwend.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_doc == old_child then
+                       n_doc = new_child.as(nullable ADoc)
+                       return
+               end
+               if _n_kwredef == old_child then
+                       n_kwredef = new_child.as(nullable TKwredef)
+                       return
+               end
+               if _n_visibility == old_child then
+                       n_visibility = new_child.as(AVisibility)
+                       return
+               end
+               if _n_kwmeth == old_child then
+                       n_kwmeth = new_child.as(nullable TKwmeth)
+                       return
+               end
+               if _n_kwinit == old_child then
+                       n_kwinit = new_child.as(nullable TKwinit)
+                       return
+               end
+               if _n_kwisa == old_child then
+                       n_kwisa = new_child.as(nullable TKwisa)
+                       return
+               end
+               if _n_kwnew == old_child then
+                       n_kwnew = new_child.as(nullable TKwnew)
+                       return
+               end
+               if _n_methid == old_child then
+                       n_methid = new_child.as(nullable AMethid)
+                       return
+               end
+               if _n_signature == old_child then
+                       n_signature = new_child.as(ASignature)
+                       return
+               end
+               if _n_annotations == old_child then
+                       n_annotations = new_child.as(nullable AAnnotations)
+                       return
+               end
+               if _n_extern_calls == old_child then
+                       n_extern_calls = new_child.as(nullable AExternCalls)
+                       return
+               end
+               if _n_extern_code_block == old_child then
+                       n_extern_code_block = new_child.as(nullable AExternCodeBlock)
+                       return
+               end
+               if _n_kwdo == old_child then
+                       n_kwdo = new_child.as(nullable TKwdo)
+                       return
+               end
+               if _n_block == old_child then
+                       n_block = new_child.as(nullable AExpr)
+                       return
+               end
+               if _n_kwend == old_child then
+                       n_kwend = new_child.as(nullable TKwend)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_doc == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa ADoc
-                _n_doc = new_child
-           else
-               _n_doc = null
-            end
-            return
+       redef fun n_doc=(node)
+       do
+               _n_doc = node
+               if node != null then node.parent = self
        end
-        if _n_kwredef == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwredef
-                _n_kwredef = new_child
-           else
-               _n_kwredef = null
-            end
-            return
+       redef fun n_kwredef=(node)
+       do
+               _n_kwredef = node
+               if node != null then node.parent = self
        end
-        if _n_visibility == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AVisibility
-                _n_visibility = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_visibility=(node)
+       do
+               _n_visibility = node
+               node.parent = self
        end
-        if _n_kwmeth == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwmeth
-                _n_kwmeth = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwmeth=(node)
+       do
+               _n_kwmeth = node
+               if node != null then node.parent = self
        end
-        if _n_methid == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AMethid
-                _n_methid = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwinit=(node)
+       do
+               _n_kwinit = node
+               if node != null then node.parent = self
        end
-        if _n_signature == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa ASignature
-                _n_signature = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwisa=(node)
+       do
+               _n_kwisa = node
+               if node != null then node.parent = self
        end
-    end
-
-    redef fun visit_all(v: Visitor)
-    do
-        if _n_doc != null then
-            v.enter_visit(_n_doc.as(not null))
-        end
-        if _n_kwredef != null then
-            v.enter_visit(_n_kwredef.as(not null))
-        end
-        v.enter_visit(_n_visibility)
-        v.enter_visit(_n_kwmeth)
-        v.enter_visit(_n_methid)
-        v.enter_visit(_n_signature)
-    end
-end
-redef class AExternMethPropdef
-    private init empty_init do end
-
-    init init_aexternmethpropdef (
-            n_doc: nullable ADoc,
-            n_kwredef: nullable TKwredef,
-            n_visibility: nullable AVisibility,
-            n_kwmeth: nullable TKwmeth,
-            n_methid: nullable AMethid,
-            n_signature: nullable ASignature,
-            n_extern: nullable TString,
-            n_extern_calls: nullable AExternCalls
-    )
-    do
-        empty_init
-        _n_doc = n_doc
-       if n_doc != null then
-               n_doc.parent = self
-       end
-        _n_kwredef = n_kwredef
-       if n_kwredef != null then
-               n_kwredef.parent = self
-       end
-        _n_visibility = n_visibility.as(not null)
-       n_visibility.parent = self
-        _n_kwmeth = n_kwmeth.as(not null)
-       n_kwmeth.parent = self
-        _n_methid = n_methid.as(not null)
-       n_methid.parent = self
-        _n_signature = n_signature.as(not null)
-       n_signature.parent = self
-        _n_extern = n_extern
-       if n_extern != null then
-               n_extern.parent = self
-       end
-        _n_extern_calls = n_extern_calls
-       if n_extern_calls != null then
-               n_extern_calls.parent = self
+       redef fun n_kwnew=(node)
+       do
+               _n_kwnew = node
+               if node != null then node.parent = self
        end
-    end
-
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_doc == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa ADoc
-                _n_doc = new_child
-           else
-               _n_doc = null
-            end
-            return
+       redef fun n_methid=(node)
+       do
+               _n_methid = node
+               if node != null then node.parent = self
        end
-        if _n_kwredef == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwredef
-                _n_kwredef = new_child
-           else
-               _n_kwredef = null
-            end
-            return
+       redef fun n_signature=(node)
+       do
+               _n_signature = node
+               node.parent = self
        end
-        if _n_visibility == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AVisibility
-                _n_visibility = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_annotations=(node)
+       do
+               _n_annotations = node
+               if node != null then node.parent = self
        end
-        if _n_kwmeth == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwmeth
-                _n_kwmeth = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_extern_calls=(node)
+       do
+               _n_extern_calls = node
+               if node != null then node.parent = self
        end
-        if _n_methid == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AMethid
-                _n_methid = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_extern_code_block=(node)
+       do
+               _n_extern_code_block = node
+               if node != null then node.parent = self
        end
-        if _n_signature == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa ASignature
-                _n_signature = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwdo=(node)
+       do
+               _n_kwdo = node
+               if node != null then node.parent = self
        end
-        if _n_extern == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TString
-                _n_extern = new_child
-           else
-               _n_extern = null
-            end
-            return
+       redef fun n_block=(node)
+       do
+               _n_block = node
+               if node != null then node.parent = self
        end
-        if _n_extern_calls == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExternCalls
-                _n_extern_calls = new_child
-           else
-               _n_extern_calls = null
-            end
-            return
+       redef fun n_kwend=(node)
+       do
+               _n_kwend = node
+               if node != null then node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        if _n_doc != null then
-            v.enter_visit(_n_doc.as(not null))
-        end
-        if _n_kwredef != null then
-            v.enter_visit(_n_kwredef.as(not null))
-        end
-        v.enter_visit(_n_visibility)
-        v.enter_visit(_n_kwmeth)
-        v.enter_visit(_n_methid)
-        v.enter_visit(_n_signature)
-        if _n_extern != null then
-            v.enter_visit(_n_extern.as(not null))
-        end
-        if _n_extern_calls != null then
-            v.enter_visit(_n_extern_calls.as(not null))
-        end
-    end
-end
-redef class AConcreteMethPropdef
-    private init empty_init do end
-
-    init init_aconcretemethpropdef (
-            n_doc: nullable ADoc,
-            n_kwredef: nullable TKwredef,
-            n_visibility: nullable AVisibility,
-            n_kwmeth: nullable TKwmeth,
-            n_methid: nullable AMethid,
-            n_signature: nullable ASignature,
-            n_block: nullable AExpr
-    )
-    do
-        empty_init
-        _n_doc = n_doc
-       if n_doc != null then
-               n_doc.parent = self
-       end
-        _n_kwredef = n_kwredef
-       if n_kwredef != null then
-               n_kwredef.parent = self
-       end
-        _n_visibility = n_visibility.as(not null)
-       n_visibility.parent = self
-        _n_kwmeth = n_kwmeth.as(not null)
-       n_kwmeth.parent = self
-        _n_methid = n_methid.as(not null)
-       n_methid.parent = self
-        _n_signature = n_signature.as(not null)
-       n_signature.parent = self
-        _n_block = n_block
-       if n_block != null then
-               n_block.parent = self
-       end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_doc == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa ADoc
-                _n_doc = new_child
-           else
-               _n_doc = null
-            end
-            return
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_doc)
+               v.enter_visit(_n_kwredef)
+               v.enter_visit(_n_visibility)
+               v.enter_visit(_n_kwmeth)
+               v.enter_visit(_n_kwinit)
+               v.enter_visit(_n_kwisa)
+               v.enter_visit(_n_kwnew)
+               v.enter_visit(_n_methid)
+               v.enter_visit(_n_signature)
+               v.enter_visit(_n_annotations)
+               v.enter_visit(_n_extern_calls)
+               v.enter_visit(_n_extern_code_block)
+               v.enter_visit(_n_kwdo)
+               v.enter_visit(_n_block)
+               v.enter_visit(_n_kwend)
+       end
+end
+redef class ASuperPropdef
+       init init_asuperpropdef (
+               n_doc: nullable ADoc,
+               n_kwredef: nullable TKwredef,
+               n_visibility: nullable AVisibility,
+               n_kwsuper: nullable TKwsuper,
+               n_type: nullable AType,
+               n_annotations: nullable AAnnotations
+       )
+       do
+               _n_doc = n_doc
+               if n_doc != null then n_doc.parent = self
+               _n_kwredef = n_kwredef
+               if n_kwredef != null then n_kwredef.parent = self
+               _n_visibility = n_visibility.as(not null)
+               n_visibility.parent = self
+               _n_kwsuper = n_kwsuper.as(not null)
+               n_kwsuper.parent = self
+               _n_type = n_type.as(not null)
+               n_type.parent = self
+               _n_annotations = n_annotations
+               if n_annotations != null then n_annotations.parent = self
        end
-        if _n_kwredef == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwredef
-                _n_kwredef = new_child
-           else
-               _n_kwredef = null
-            end
-            return
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_doc == old_child then
+                       n_doc = new_child.as(nullable ADoc)
+                       return
+               end
+               if _n_kwredef == old_child then
+                       n_kwredef = new_child.as(nullable TKwredef)
+                       return
+               end
+               if _n_visibility == old_child then
+                       n_visibility = new_child.as(AVisibility)
+                       return
+               end
+               if _n_kwsuper == old_child then
+                       n_kwsuper = new_child.as(TKwsuper)
+                       return
+               end
+               if _n_type == old_child then
+                       n_type = new_child.as(AType)
+                       return
+               end
+               if _n_annotations == old_child then
+                       n_annotations = new_child.as(nullable AAnnotations)
+                       return
+               end
        end
-        if _n_visibility == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AVisibility
-                _n_visibility = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun n_doc=(node)
+       do
+               _n_doc = node
+               if node != null then node.parent = self
        end
-        if _n_kwmeth == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwmeth
-                _n_kwmeth = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwredef=(node)
+       do
+               _n_kwredef = node
+               if node != null then node.parent = self
        end
-        if _n_methid == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AMethid
-                _n_methid = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_visibility=(node)
+       do
+               _n_visibility = node
+               node.parent = self
        end
-        if _n_signature == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa ASignature
-                _n_signature = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwsuper=(node)
+       do
+               _n_kwsuper = node
+               node.parent = self
        end
-        if _n_block == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_block = new_child
-           else
-               _n_block = null
-            end
-            return
+       redef fun n_type=(node)
+       do
+               _n_type = node
+               node.parent = self
        end
-    end
-
-    redef fun visit_all(v: Visitor)
-    do
-        if _n_doc != null then
-            v.enter_visit(_n_doc.as(not null))
-        end
-        if _n_kwredef != null then
-            v.enter_visit(_n_kwredef.as(not null))
-        end
-        v.enter_visit(_n_visibility)
-        v.enter_visit(_n_kwmeth)
-        v.enter_visit(_n_methid)
-        v.enter_visit(_n_signature)
-        if _n_block != null then
-            v.enter_visit(_n_block.as(not null))
-        end
-    end
-end
-redef class AConcreteInitPropdef
-    private init empty_init do end
-
-    init init_aconcreteinitpropdef (
-            n_doc: nullable ADoc,
-            n_kwredef: nullable TKwredef,
-            n_visibility: nullable AVisibility,
-            n_kwinit: nullable TKwinit,
-            n_methid: nullable AMethid,
-            n_signature: nullable ASignature,
-            n_block: nullable AExpr
-    )
-    do
-        empty_init
-        _n_doc = n_doc
-       if n_doc != null then
-               n_doc.parent = self
-       end
-        _n_kwredef = n_kwredef
-       if n_kwredef != null then
-               n_kwredef.parent = self
-       end
-        _n_visibility = n_visibility.as(not null)
-       n_visibility.parent = self
-        _n_kwinit = n_kwinit.as(not null)
-       n_kwinit.parent = self
-        _n_methid = n_methid
-       if n_methid != null then
-               n_methid.parent = self
+       redef fun n_annotations=(node)
+       do
+               _n_annotations = node
+               if node != null then node.parent = self
        end
-        _n_signature = n_signature.as(not null)
-       n_signature.parent = self
-        _n_block = n_block
-       if n_block != null then
-               n_block.parent = self
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_doc)
+               v.enter_visit(_n_kwredef)
+               v.enter_visit(_n_visibility)
+               v.enter_visit(_n_kwsuper)
+               v.enter_visit(_n_type)
+               v.enter_visit(_n_annotations)
+       end
+end
+redef class AAnnotPropdef
+       init init_aannotpropdef (
+               n_doc: nullable ADoc,
+               n_kwredef: nullable TKwredef,
+               n_visibility: nullable AVisibility,
+               n_atid: nullable AAtid,
+               n_opar: nullable TOpar,
+               n_args: Collection[Object], # Should be Collection[AExpr]
+               n_cpar: nullable TCpar,
+               n_annotations: nullable AAnnotations
+       )
+       do
+               _n_doc = n_doc
+               if n_doc != null then n_doc.parent = self
+               _n_kwredef = n_kwredef
+               if n_kwredef != null then n_kwredef.parent = self
+               _n_visibility = n_visibility
+               if n_visibility != null then n_visibility.parent = self
+               _n_atid = n_atid.as(not null)
+               n_atid.parent = self
+               _n_opar = n_opar
+               if n_opar != null then n_opar.parent = self
+               self.n_args.unsafe_add_all(n_args)
+               _n_cpar = n_cpar
+               if n_cpar != null then n_cpar.parent = self
+               _n_annotations = n_annotations
+               if n_annotations != null then n_annotations.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_doc == old_child then
+                       n_doc = new_child.as(nullable ADoc)
+                       return
+               end
+               if _n_kwredef == old_child then
+                       n_kwredef = new_child.as(nullable TKwredef)
+                       return
+               end
+               if _n_visibility == old_child then
+                       n_visibility = new_child.as(nullable AVisibility)
+                       return
+               end
+               if _n_atid == old_child then
+                       n_atid = new_child.as(AAtid)
+                       return
+               end
+               if _n_opar == old_child then
+                       n_opar = new_child.as(nullable TOpar)
+                       return
+               end
+               if n_args.replace_child(old_child, new_child) then return
+               if _n_cpar == old_child then
+                       n_cpar = new_child.as(nullable TCpar)
+                       return
+               end
+               if _n_annotations == old_child then
+                       n_annotations = new_child.as(nullable AAnnotations)
+                       return
+               end
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_doc == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa ADoc
-                _n_doc = new_child
-           else
-               _n_doc = null
-            end
-            return
+       redef fun n_doc=(node)
+       do
+               _n_doc = node
+               if node != null then node.parent = self
        end
-        if _n_kwredef == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwredef
-                _n_kwredef = new_child
-           else
-               _n_kwredef = null
-            end
-            return
+       redef fun n_kwredef=(node)
+       do
+               _n_kwredef = node
+               if node != null then node.parent = self
        end
-        if _n_visibility == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AVisibility
-                _n_visibility = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_visibility=(node)
+       do
+               _n_visibility = node
+               if node != null then node.parent = self
        end
-        if _n_kwinit == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwinit
-                _n_kwinit = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_atid=(node)
+       do
+               _n_atid = node
+               node.parent = self
        end
-        if _n_methid == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AMethid
-                _n_methid = new_child
-           else
-               _n_methid = null
-            end
-            return
+       redef fun n_opar=(node)
+       do
+               _n_opar = node
+               if node != null then node.parent = self
        end
-        if _n_signature == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa ASignature
-                _n_signature = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_cpar=(node)
+       do
+               _n_cpar = node
+               if node != null then node.parent = self
        end
-        if _n_block == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_block = new_child
-           else
-               _n_block = null
-            end
-            return
+       redef fun n_annotations=(node)
+       do
+               _n_annotations = node
+               if node != null then node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        if _n_doc != null then
-            v.enter_visit(_n_doc.as(not null))
-        end
-        if _n_kwredef != null then
-            v.enter_visit(_n_kwredef.as(not null))
-        end
-        v.enter_visit(_n_visibility)
-        v.enter_visit(_n_kwinit)
-        if _n_methid != null then
-            v.enter_visit(_n_methid.as(not null))
-        end
-        v.enter_visit(_n_signature)
-        if _n_block != null then
-            v.enter_visit(_n_block.as(not null))
-        end
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_doc)
+               v.enter_visit(_n_kwredef)
+               v.enter_visit(_n_visibility)
+               v.enter_visit(_n_atid)
+               v.enter_visit(_n_opar)
+               n_args.visit_all(v)
+               v.enter_visit(_n_cpar)
+               v.enter_visit(_n_annotations)
+       end
 end
-redef class AExternInitPropdef
-    private init empty_init do end
-
-    init init_aexterninitpropdef (
-            n_doc: nullable ADoc,
-            n_kwredef: nullable TKwredef,
-            n_visibility: nullable AVisibility,
-            n_kwnew: nullable TKwnew,
-            n_methid: nullable AMethid,
-            n_signature: nullable ASignature,
-            n_extern: nullable TString,
-            n_extern_calls: nullable AExternCalls
-    )
-    do
-        empty_init
-        _n_doc = n_doc
-       if n_doc != null then
-               n_doc.parent = self
-       end
-        _n_kwredef = n_kwredef
-       if n_kwredef != null then
-               n_kwredef.parent = self
-       end
-        _n_visibility = n_visibility.as(not null)
-       n_visibility.parent = self
-        _n_kwnew = n_kwnew.as(not null)
-       n_kwnew.parent = self
-        _n_methid = n_methid
-       if n_methid != null then
-               n_methid.parent = self
+redef class AIdMethid
+       init init_aidmethid (
+               n_id: nullable TId
+       )
+       do
+               _n_id = n_id.as(not null)
+               n_id.parent = self
        end
-        _n_signature = n_signature.as(not null)
-       n_signature.parent = self
-        _n_extern = n_extern
-       if n_extern != null then
-               n_extern.parent = self
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_id == old_child then
+                       n_id = new_child.as(TId)
+                       return
+               end
        end
-        _n_extern_calls = n_extern_calls
-       if n_extern_calls != null then
-               n_extern_calls.parent = self
+
+       redef fun n_id=(node)
+       do
+               _n_id = node
+               node.parent = self
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_doc == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa ADoc
-                _n_doc = new_child
-           else
-               _n_doc = null
-            end
-            return
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_id)
        end
-        if _n_kwredef == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwredef
-                _n_kwredef = new_child
-           else
-               _n_kwredef = null
-            end
-            return
+end
+redef class APlusMethid
+       init init_aplusmethid (
+               n_op: nullable TPlus
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
        end
-        if _n_visibility == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AVisibility
-                _n_visibility = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TPlus)
+                       return
+               end
        end
-        if _n_kwnew == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwnew
-                _n_kwnew = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-        if _n_methid == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AMethid
-                _n_methid = new_child
-           else
-               _n_methid = null
-            end
-            return
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
        end
-        if _n_signature == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa ASignature
-                _n_signature = new_child
-           else
-               abort
-            end
-            return
+end
+redef class AMinusMethid
+       init init_aminusmethid (
+               n_op: nullable TMinus
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
        end
-        if _n_extern == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TString
-                _n_extern = new_child
-           else
-               _n_extern = null
-            end
-            return
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TMinus)
+                       return
+               end
        end
-        if _n_extern_calls == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExternCalls
-                _n_extern_calls = new_child
-           else
-               _n_extern_calls = null
-            end
-            return
+
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        if _n_doc != null then
-            v.enter_visit(_n_doc.as(not null))
-        end
-        if _n_kwredef != null then
-            v.enter_visit(_n_kwredef.as(not null))
-        end
-        v.enter_visit(_n_visibility)
-        v.enter_visit(_n_kwnew)
-        if _n_methid != null then
-            v.enter_visit(_n_methid.as(not null))
-        end
-        v.enter_visit(_n_signature)
-        if _n_extern != null then
-            v.enter_visit(_n_extern.as(not null))
-        end
-        if _n_extern_calls != null then
-            v.enter_visit(_n_extern_calls.as(not null))
-        end
-    end
-end
-redef class AMainMethPropdef
-    private init empty_init do end
 
-    init init_amainmethpropdef (
-            n_kwredef: nullable TKwredef,
-            n_block: nullable AExpr
-    )
-    do
-        empty_init
-        _n_kwredef = n_kwredef
-       if n_kwredef != null then
-               n_kwredef.parent = self
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
        end
-        _n_block = n_block
-       if n_block != null then
-               n_block.parent = self
+end
+redef class AStarMethid
+       init init_astarmethid (
+               n_op: nullable TStar
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwredef == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwredef
-                _n_kwredef = new_child
-           else
-               _n_kwredef = null
-            end
-            return
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TStar)
+                       return
+               end
        end
-        if _n_block == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_block = new_child
-           else
-               _n_block = null
-            end
-            return
+
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        if _n_kwredef != null then
-            v.enter_visit(_n_kwredef.as(not null))
-        end
-        if _n_block != null then
-            v.enter_visit(_n_block.as(not null))
-        end
-    end
-end
-redef class ATypePropdef
-    private init empty_init do end
-
-    init init_atypepropdef (
-            n_doc: nullable ADoc,
-            n_kwredef: nullable TKwredef,
-            n_visibility: nullable AVisibility,
-            n_kwtype: nullable TKwtype,
-            n_id: nullable TClassid,
-            n_type: nullable AType
-    )
-    do
-        empty_init
-        _n_doc = n_doc
-       if n_doc != null then
-               n_doc.parent = self
-       end
-        _n_kwredef = n_kwredef
-       if n_kwredef != null then
-               n_kwredef.parent = self
-       end
-        _n_visibility = n_visibility.as(not null)
-       n_visibility.parent = self
-        _n_kwtype = n_kwtype.as(not null)
-       n_kwtype.parent = self
-        _n_id = n_id.as(not null)
-       n_id.parent = self
-        _n_type = n_type.as(not null)
-       n_type.parent = self
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_doc == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa ADoc
-                _n_doc = new_child
-           else
-               _n_doc = null
-            end
-            return
-       end
-        if _n_kwredef == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwredef
-                _n_kwredef = new_child
-           else
-               _n_kwredef = null
-            end
-            return
-       end
-        if _n_visibility == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AVisibility
-                _n_visibility = new_child
-           else
-               abort
-            end
-            return
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
        end
-        if _n_kwtype == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwtype
-                _n_kwtype = new_child
-           else
-               abort
-            end
-            return
+end
+redef class AStarstarMethid
+       init init_astarstarmethid (
+               n_op: nullable TStarstar
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
        end
-        if _n_id == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TClassid
-                _n_id = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TStarstar)
+                       return
+               end
        end
-        if _n_type == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AType
-                _n_type = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        if _n_doc != null then
-            v.enter_visit(_n_doc.as(not null))
-        end
-        if _n_kwredef != null then
-            v.enter_visit(_n_kwredef.as(not null))
-        end
-        v.enter_visit(_n_visibility)
-        v.enter_visit(_n_kwtype)
-        v.enter_visit(_n_id)
-        v.enter_visit(_n_type)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+       end
 end
-redef class AReadAble
-    private init empty_init do end
+redef class ASlashMethid
+       init init_aslashmethid (
+               n_op: nullable TSlash
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+       end
 
-    init init_areadable (
-            n_kwredef: nullable TKwredef,
-            n_kwreadable: nullable TKwreadable
-    )
-    do
-        empty_init
-        _n_kwredef = n_kwredef
-       if n_kwredef != null then
-               n_kwredef.parent = self
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TSlash)
+                       return
+               end
        end
-        _n_kwreadable = n_kwreadable.as(not null)
-       n_kwreadable.parent = self
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwredef == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwredef
-                _n_kwredef = new_child
-           else
-               _n_kwredef = null
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-        if _n_kwreadable == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwreadable
-                _n_kwreadable = new_child
-           else
-               abort
-            end
-            return
-       end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        if _n_kwredef != null then
-            v.enter_visit(_n_kwredef.as(not null))
-        end
-        v.enter_visit(_n_kwreadable)
-    end
-end
-redef class AWriteAble
-    private init empty_init do end
 
-    init init_awriteable (
-            n_kwredef: nullable TKwredef,
-            n_visibility: nullable AVisibility,
-            n_kwwritable: nullable TKwwritable
-    )
-    do
-        empty_init
-        _n_kwredef = n_kwredef
-       if n_kwredef != null then
-               n_kwredef.parent = self
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
        end
-        _n_visibility = n_visibility
-       if n_visibility != null then
-               n_visibility.parent = self
+end
+redef class APercentMethid
+       init init_apercentmethid (
+               n_op: nullable TPercent
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
        end
-        _n_kwwritable = n_kwwritable.as(not null)
-       n_kwwritable.parent = self
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwredef == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwredef
-                _n_kwredef = new_child
-           else
-               _n_kwredef = null
-            end
-            return
-       end
-        if _n_visibility == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AVisibility
-                _n_visibility = new_child
-           else
-               _n_visibility = null
-            end
-            return
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TPercent)
+                       return
+               end
        end
-        if _n_kwwritable == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwwritable
-                _n_kwwritable = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        if _n_kwredef != null then
-            v.enter_visit(_n_kwredef.as(not null))
-        end
-        if _n_visibility != null then
-            v.enter_visit(_n_visibility.as(not null))
-        end
-        v.enter_visit(_n_kwwritable)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+       end
 end
-redef class AIdMethid
-    private init empty_init do end
+redef class AEqMethid
+       init init_aeqmethid (
+               n_op: nullable TEq
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+       end
 
-    init init_aidmethid (
-            n_id: nullable TId
-    )
-    do
-        empty_init
-        _n_id = n_id.as(not null)
-       n_id.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TEq)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_id == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TId
-                _n_id = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_id)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+       end
 end
-redef class APlusMethid
-    private init empty_init do end
+redef class ANeMethid
+       init init_anemethid (
+               n_op: nullable TNe
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+       end
 
-    init init_aplusmethid (
-            n_plus: nullable TPlus
-    )
-    do
-        empty_init
-        _n_plus = n_plus.as(not null)
-       n_plus.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TNe)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_plus == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TPlus
-                _n_plus = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_plus)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+       end
 end
-redef class AMinusMethid
-    private init empty_init do end
+redef class ALeMethid
+       init init_alemethid (
+               n_op: nullable TLe
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+       end
 
-    init init_aminusmethid (
-            n_minus: nullable TMinus
-    )
-    do
-        empty_init
-        _n_minus = n_minus.as(not null)
-       n_minus.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TLe)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_minus == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TMinus
-                _n_minus = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_minus)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+       end
 end
-redef class AStarMethid
-    private init empty_init do end
+redef class AGeMethid
+       init init_agemethid (
+               n_op: nullable TGe
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+       end
 
-    init init_astarmethid (
-            n_star: nullable TStar
-    )
-    do
-        empty_init
-        _n_star = n_star.as(not null)
-       n_star.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TGe)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_star == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TStar
-                _n_star = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_star)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+       end
 end
-redef class ASlashMethid
-    private init empty_init do end
+redef class ALtMethid
+       init init_altmethid (
+               n_op: nullable TLt
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+       end
 
-    init init_aslashmethid (
-            n_slash: nullable TSlash
-    )
-    do
-        empty_init
-        _n_slash = n_slash.as(not null)
-       n_slash.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TLt)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_slash == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TSlash
-                _n_slash = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_slash)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+       end
 end
-redef class APercentMethid
-    private init empty_init do end
+redef class AGtMethid
+       init init_agtmethid (
+               n_op: nullable TGt
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+       end
 
-    init init_apercentmethid (
-            n_percent: nullable TPercent
-    )
-    do
-        empty_init
-        _n_percent = n_percent.as(not null)
-       n_percent.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TGt)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_percent == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TPercent
-                _n_percent = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_percent)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+       end
 end
-redef class AEqMethid
-    private init empty_init do end
+redef class ALlMethid
+       init init_allmethid (
+               n_op: nullable TLl
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+       end
 
-    init init_aeqmethid (
-            n_eq: nullable TEq
-    )
-    do
-        empty_init
-        _n_eq = n_eq.as(not null)
-       n_eq.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TLl)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_eq == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TEq
-                _n_eq = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_eq)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+       end
 end
-redef class ANeMethid
-    private init empty_init do end
+redef class AGgMethid
+       init init_aggmethid (
+               n_op: nullable TGg
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+       end
 
-    init init_anemethid (
-            n_ne: nullable TNe
-    )
-    do
-        empty_init
-        _n_ne = n_ne.as(not null)
-       n_ne.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TGg)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_ne == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TNe
-                _n_ne = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_ne)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+       end
 end
-redef class ALeMethid
-    private init empty_init do end
+redef class AStarshipMethid
+       init init_astarshipmethid (
+               n_op: nullable TStarship
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+       end
 
-    init init_alemethid (
-            n_le: nullable TLe
-    )
-    do
-        empty_init
-        _n_le = n_le.as(not null)
-       n_le.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TStarship)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_le == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TLe
-                _n_le = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_le)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+       end
 end
-redef class AGeMethid
-    private init empty_init do end
+redef class APipeMethid
+       init init_apipemethid (
+               n_op: nullable TPipe
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+       end
 
-    init init_agemethid (
-            n_ge: nullable TGe
-    )
-    do
-        empty_init
-        _n_ge = n_ge.as(not null)
-       n_ge.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TPipe)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_ge == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TGe
-                _n_ge = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_ge)
-    end
-end
-redef class ALtMethid
-    private init empty_init do end
 
-    init init_altmethid (
-            n_lt: nullable TLt
-    )
-    do
-        empty_init
-        _n_lt = n_lt.as(not null)
-       n_lt.parent = self
-    end
-
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_lt == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TLt
-                _n_lt = new_child
-           else
-               abort
-            end
-            return
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
        end
-    end
-
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_lt)
-    end
 end
-redef class AGtMethid
-    private init empty_init do end
+redef class ACaretMethid
+       init init_acaretmethid (
+               n_op: nullable TCaret
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+       end
 
-    init init_agtmethid (
-            n_gt: nullable TGt
-    )
-    do
-        empty_init
-        _n_gt = n_gt.as(not null)
-       n_gt.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TCaret)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_gt == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TGt
-                _n_gt = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_gt)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+       end
 end
-redef class ALlMethid
-    private init empty_init do end
+redef class AAmpMethid
+       init init_aampmethid (
+               n_op: nullable TAmp
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+       end
 
-    init init_allmethid (
-            n_ll: nullable TLl
-    )
-    do
-        empty_init
-        _n_ll = n_ll.as(not null)
-       n_ll.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TAmp)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_ll == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TLl
-                _n_ll = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_ll)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+       end
 end
-redef class AGgMethid
-    private init empty_init do end
+redef class ATildeMethid
+       init init_atildemethid (
+               n_op: nullable TTilde
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+       end
 
-    init init_aggmethid (
-            n_gg: nullable TGg
-    )
-    do
-        empty_init
-        _n_gg = n_gg.as(not null)
-       n_gg.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TTilde)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_gg == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TGg
-                _n_gg = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_gg)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+       end
 end
 redef class ABraMethid
-    private init empty_init do end
+       init init_abramethid (
+               n_obra: nullable TObra,
+               n_cbra: nullable TCbra
+       )
+       do
+               _n_obra = n_obra.as(not null)
+               n_obra.parent = self
+               _n_cbra = n_cbra.as(not null)
+               n_cbra.parent = self
+       end
 
-    init init_abramethid (
-            n_obra: nullable TObra,
-            n_cbra: nullable TCbra
-    )
-    do
-        empty_init
-        _n_obra = n_obra.as(not null)
-       n_obra.parent = self
-        _n_cbra = n_cbra.as(not null)
-       n_cbra.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_obra == old_child then
+                       n_obra = new_child.as(TObra)
+                       return
+               end
+               if _n_cbra == old_child then
+                       n_cbra = new_child.as(TCbra)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_obra == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TObra
-                _n_obra = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_obra=(node)
+       do
+               _n_obra = node
+               node.parent = self
        end
-        if _n_cbra == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TCbra
-                _n_cbra = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_cbra=(node)
+       do
+               _n_cbra = node
+               node.parent = self
        end
-    end
-
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_obra)
-        v.enter_visit(_n_cbra)
-    end
-end
-redef class AStarshipMethid
-    private init empty_init do end
 
-    init init_astarshipmethid (
-            n_starship: nullable TStarship
-    )
-    do
-        empty_init
-        _n_starship = n_starship.as(not null)
-       n_starship.parent = self
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_starship == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TStarship
-                _n_starship = new_child
-           else
-               abort
-            end
-            return
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_obra)
+               v.enter_visit(_n_cbra)
        end
-    end
-
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_starship)
-    end
 end
 redef class AAssignMethid
-    private init empty_init do end
+       init init_aassignmethid (
+               n_id: nullable TId,
+               n_assign: nullable TAssign
+       )
+       do
+               _n_id = n_id.as(not null)
+               n_id.parent = self
+               _n_assign = n_assign.as(not null)
+               n_assign.parent = self
+       end
 
-    init init_aassignmethid (
-            n_id: nullable TId,
-            n_assign: nullable TAssign
-    )
-    do
-        empty_init
-        _n_id = n_id.as(not null)
-       n_id.parent = self
-        _n_assign = n_assign.as(not null)
-       n_assign.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_id == old_child then
+                       n_id = new_child.as(TId)
+                       return
+               end
+               if _n_assign == old_child then
+                       n_assign = new_child.as(TAssign)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_id == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TId
-                _n_id = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_id=(node)
+       do
+               _n_id = node
+               node.parent = self
        end
-        if _n_assign == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TAssign
-                _n_assign = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_assign=(node)
+       do
+               _n_assign = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_id)
-        v.enter_visit(_n_assign)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_id)
+               v.enter_visit(_n_assign)
+       end
 end
 redef class ABraassignMethid
-    private init empty_init do end
+       init init_abraassignmethid (
+               n_obra: nullable TObra,
+               n_cbra: nullable TCbra,
+               n_assign: nullable TAssign
+       )
+       do
+               _n_obra = n_obra.as(not null)
+               n_obra.parent = self
+               _n_cbra = n_cbra.as(not null)
+               n_cbra.parent = self
+               _n_assign = n_assign.as(not null)
+               n_assign.parent = self
+       end
 
-    init init_abraassignmethid (
-            n_obra: nullable TObra,
-            n_cbra: nullable TCbra,
-            n_assign: nullable TAssign
-    )
-    do
-        empty_init
-        _n_obra = n_obra.as(not null)
-       n_obra.parent = self
-        _n_cbra = n_cbra.as(not null)
-       n_cbra.parent = self
-        _n_assign = n_assign.as(not null)
-       n_assign.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_obra == old_child then
+                       n_obra = new_child.as(TObra)
+                       return
+               end
+               if _n_cbra == old_child then
+                       n_cbra = new_child.as(TCbra)
+                       return
+               end
+               if _n_assign == old_child then
+                       n_assign = new_child.as(TAssign)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_obra == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TObra
-                _n_obra = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_obra=(node)
+       do
+               _n_obra = node
+               node.parent = self
        end
-        if _n_cbra == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TCbra
-                _n_cbra = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_cbra=(node)
+       do
+               _n_cbra = node
+               node.parent = self
        end
-        if _n_assign == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TAssign
-                _n_assign = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_assign=(node)
+       do
+               _n_assign = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_obra)
-        v.enter_visit(_n_cbra)
-        v.enter_visit(_n_assign)
-    end
-end
-redef class ASignature
-    private init empty_init do end
 
-    init init_asignature (
-            n_params: Collection[Object], # Should be Collection[AParam]
-            n_type: nullable AType,
-            n_closure_decls: Collection[Object] # Should be Collection[AClosureDecl]
-    )
-    do
-        empty_init
-       for n in n_params do
-               assert n isa AParam
-               _n_params.add(n)
-               n.parent = self
-       end
-        _n_type = n_type
-       if n_type != null then
-               n_type.parent = self
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_obra)
+               v.enter_visit(_n_cbra)
+               v.enter_visit(_n_assign)
        end
-       for n in n_closure_decls do
-               assert n isa AClosureDecl
-               _n_closure_decls.add(n)
-               n.parent = self
+end
+redef class AQid
+       init init_aqid (
+               n_qualified: nullable AQualified,
+               n_id: nullable TId
+       )
+       do
+               _n_qualified = n_qualified
+               if n_qualified != null then n_qualified.parent = self
+               _n_id = n_id.as(not null)
+               n_id.parent = self
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        for i in [0.._n_params.length[ do
-            if _n_params[i] == old_child then
-                if new_child != null then
-                   assert new_child isa AParam
-                    _n_params[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_params.remove_at(i)
-                end
-                return
-            end
-        end
-        if _n_type == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AType
-                _n_type = new_child
-           else
-               _n_type = null
-            end
-            return
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_qualified == old_child then
+                       n_qualified = new_child.as(nullable AQualified)
+                       return
+               end
+               if _n_id == old_child then
+                       n_id = new_child.as(TId)
+                       return
+               end
        end
-        for i in [0.._n_closure_decls.length[ do
-            if _n_closure_decls[i] == old_child then
-                if new_child != null then
-                   assert new_child isa AClosureDecl
-                    _n_closure_decls[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_closure_decls.remove_at(i)
-                end
-                return
-            end
-        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-            for n in _n_params do
-                v.enter_visit(n)
-           end
-        if _n_type != null then
-            v.enter_visit(_n_type.as(not null))
-        end
-            for n in _n_closure_decls do
-                v.enter_visit(n)
-           end
-    end
-end
-redef class AParam
-    private init empty_init do end
+       redef fun n_qualified=(node)
+       do
+               _n_qualified = node
+               if node != null then node.parent = self
+       end
+       redef fun n_id=(node)
+       do
+               _n_id = node
+               node.parent = self
+       end
 
-    init init_aparam (
-            n_id: nullable TId,
-            n_type: nullable AType,
-            n_dotdotdot: nullable TDotdotdot
-    )
-    do
-        empty_init
-        _n_id = n_id.as(not null)
-       n_id.parent = self
-        _n_type = n_type
-       if n_type != null then
-               n_type.parent = self
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_qualified)
+               v.enter_visit(_n_id)
        end
-        _n_dotdotdot = n_dotdotdot
-       if n_dotdotdot != null then
-               n_dotdotdot.parent = self
+end
+redef class AQclassid
+       init init_aqclassid (
+               n_qualified: nullable AQualified,
+               n_id: nullable TClassid
+       )
+       do
+               _n_qualified = n_qualified
+               if n_qualified != null then n_qualified.parent = self
+               _n_id = n_id.as(not null)
+               n_id.parent = self
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_id == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TId
-                _n_id = new_child
-           else
-               abort
-            end
-            return
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_qualified == old_child then
+                       n_qualified = new_child.as(nullable AQualified)
+                       return
+               end
+               if _n_id == old_child then
+                       n_id = new_child.as(TClassid)
+                       return
+               end
        end
-        if _n_type == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AType
-                _n_type = new_child
-           else
-               _n_type = null
-            end
-            return
+
+       redef fun n_qualified=(node)
+       do
+               _n_qualified = node
+               if node != null then node.parent = self
        end
-        if _n_dotdotdot == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TDotdotdot
-                _n_dotdotdot = new_child
-           else
-               _n_dotdotdot = null
-            end
-            return
+       redef fun n_id=(node)
+       do
+               _n_id = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_id)
-        if _n_type != null then
-            v.enter_visit(_n_type.as(not null))
-        end
-        if _n_dotdotdot != null then
-            v.enter_visit(_n_dotdotdot.as(not null))
-        end
-    end
-end
-redef class AClosureDecl
-    private init empty_init do end
 
-    init init_aclosuredecl (
-            n_kwbreak: nullable TKwbreak,
-            n_bang: nullable TBang,
-            n_id: nullable TId,
-            n_signature: nullable ASignature,
-            n_expr: nullable AExpr
-    )
-    do
-        empty_init
-        _n_kwbreak = n_kwbreak
-       if n_kwbreak != null then
-               n_kwbreak.parent = self
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_qualified)
+               v.enter_visit(_n_id)
        end
-        _n_bang = n_bang.as(not null)
-       n_bang.parent = self
-        _n_id = n_id.as(not null)
-       n_id.parent = self
-        _n_signature = n_signature.as(not null)
-       n_signature.parent = self
-        _n_expr = n_expr
-       if n_expr != null then
-               n_expr.parent = self
+end
+redef class ASignature
+       init init_asignature (
+               n_opar: nullable TOpar,
+               n_params: Collection[Object], # Should be Collection[AParam]
+               n_cpar: nullable TCpar,
+               n_type: nullable AType
+       )
+       do
+               _n_opar = n_opar
+               if n_opar != null then n_opar.parent = self
+               self.n_params.unsafe_add_all(n_params)
+               _n_cpar = n_cpar
+               if n_cpar != null then n_cpar.parent = self
+               _n_type = n_type
+               if n_type != null then n_type.parent = self
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwbreak == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwbreak
-                _n_kwbreak = new_child
-           else
-               _n_kwbreak = null
-            end
-            return
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_opar == old_child then
+                       n_opar = new_child.as(nullable TOpar)
+                       return
+               end
+               if n_params.replace_child(old_child, new_child) then return
+               if _n_cpar == old_child then
+                       n_cpar = new_child.as(nullable TCpar)
+                       return
+               end
+               if _n_type == old_child then
+                       n_type = new_child.as(nullable AType)
+                       return
+               end
        end
-        if _n_bang == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TBang
-                _n_bang = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun n_opar=(node)
+       do
+               _n_opar = node
+               if node != null then node.parent = self
        end
-        if _n_id == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TId
-                _n_id = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_cpar=(node)
+       do
+               _n_cpar = node
+               if node != null then node.parent = self
        end
-        if _n_signature == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa ASignature
-                _n_signature = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_type=(node)
+       do
+               _n_type = node
+               if node != null then node.parent = self
        end
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               _n_expr = null
-            end
-            return
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_opar)
+               n_params.visit_all(v)
+               v.enter_visit(_n_cpar)
+               v.enter_visit(_n_type)
+       end
+end
+redef class AParam
+       init init_aparam (
+               n_id: nullable TId,
+               n_type: nullable AType,
+               n_dotdotdot: nullable TDotdotdot,
+               n_annotations: nullable AAnnotations
+       )
+       do
+               _n_id = n_id.as(not null)
+               n_id.parent = self
+               _n_type = n_type
+               if n_type != null then n_type.parent = self
+               _n_dotdotdot = n_dotdotdot
+               if n_dotdotdot != null then n_dotdotdot.parent = self
+               _n_annotations = n_annotations
+               if n_annotations != null then n_annotations.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        if _n_kwbreak != null then
-            v.enter_visit(_n_kwbreak.as(not null))
-        end
-        v.enter_visit(_n_bang)
-        v.enter_visit(_n_id)
-        v.enter_visit(_n_signature)
-        if _n_expr != null then
-            v.enter_visit(_n_expr.as(not null))
-        end
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_id == old_child then
+                       n_id = new_child.as(TId)
+                       return
+               end
+               if _n_type == old_child then
+                       n_type = new_child.as(nullable AType)
+                       return
+               end
+               if _n_dotdotdot == old_child then
+                       n_dotdotdot = new_child.as(nullable TDotdotdot)
+                       return
+               end
+               if _n_annotations == old_child then
+                       n_annotations = new_child.as(nullable AAnnotations)
+                       return
+               end
+       end
+
+       redef fun n_id=(node)
+       do
+               _n_id = node
+               node.parent = self
+       end
+       redef fun n_type=(node)
+       do
+               _n_type = node
+               if node != null then node.parent = self
+       end
+       redef fun n_dotdotdot=(node)
+       do
+               _n_dotdotdot = node
+               if node != null then node.parent = self
+       end
+       redef fun n_annotations=(node)
+       do
+               _n_annotations = node
+               if node != null then node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_id)
+               v.enter_visit(_n_type)
+               v.enter_visit(_n_dotdotdot)
+               v.enter_visit(_n_annotations)
+       end
 end
 redef class AType
-    private init empty_init do end
+       init init_atype (
+               n_kwnullable: nullable TKwnullable,
+               n_qid: nullable AQclassid,
+               n_obra: nullable TObra,
+               n_types: Collection[Object], # Should be Collection[AType]
+               n_cbra: nullable TCbra,
+               n_annotations: nullable AAnnotations
+       )
+       do
+               _n_kwnullable = n_kwnullable
+               if n_kwnullable != null then n_kwnullable.parent = self
+               _n_qid = n_qid.as(not null)
+               n_qid.parent = self
+               _n_obra = n_obra
+               if n_obra != null then n_obra.parent = self
+               self.n_types.unsafe_add_all(n_types)
+               _n_cbra = n_cbra
+               if n_cbra != null then n_cbra.parent = self
+               _n_annotations = n_annotations
+               if n_annotations != null then n_annotations.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwnullable == old_child then
+                       n_kwnullable = new_child.as(nullable TKwnullable)
+                       return
+               end
+               if _n_qid == old_child then
+                       n_qid = new_child.as(AQclassid)
+                       return
+               end
+               if _n_obra == old_child then
+                       n_obra = new_child.as(nullable TObra)
+                       return
+               end
+               if n_types.replace_child(old_child, new_child) then return
+               if _n_cbra == old_child then
+                       n_cbra = new_child.as(nullable TCbra)
+                       return
+               end
+               if _n_annotations == old_child then
+                       n_annotations = new_child.as(nullable AAnnotations)
+                       return
+               end
+       end
 
-    init init_atype (
-            n_kwnullable: nullable TKwnullable,
-            n_id: nullable TClassid,
-            n_types: Collection[Object] # Should be Collection[AType]
-    )
-    do
-        empty_init
-        _n_kwnullable = n_kwnullable
-       if n_kwnullable != null then
-               n_kwnullable.parent = self
+       redef fun n_kwnullable=(node)
+       do
+               _n_kwnullable = node
+               if node != null then node.parent = self
        end
-        _n_id = n_id.as(not null)
-       n_id.parent = self
-       for n in n_types do
-               assert n isa AType
-               _n_types.add(n)
-               n.parent = self
+       redef fun n_qid=(node)
+       do
+               _n_qid = node
+               node.parent = self
        end
-    end
-
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwnullable == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwnullable
-                _n_kwnullable = new_child
-           else
-               _n_kwnullable = null
-            end
-            return
+       redef fun n_obra=(node)
+       do
+               _n_obra = node
+               if node != null then node.parent = self
        end
-        if _n_id == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TClassid
-                _n_id = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_cbra=(node)
+       do
+               _n_cbra = node
+               if node != null then node.parent = self
+       end
+       redef fun n_annotations=(node)
+       do
+               _n_annotations = node
+               if node != null then node.parent = self
        end
-        for i in [0.._n_types.length[ do
-            if _n_types[i] == old_child then
-                if new_child != null then
-                   assert new_child isa AType
-                    _n_types[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_types.remove_at(i)
-                end
-                return
-            end
-        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        if _n_kwnullable != null then
-            v.enter_visit(_n_kwnullable.as(not null))
-        end
-        v.enter_visit(_n_id)
-            for n in _n_types do
-                v.enter_visit(n)
-           end
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwnullable)
+               v.enter_visit(_n_qid)
+               v.enter_visit(_n_obra)
+               n_types.visit_all(v)
+               v.enter_visit(_n_cbra)
+               v.enter_visit(_n_annotations)
+       end
 end
 redef class ALabel
-    private init empty_init do end
+       init init_alabel (
+               n_kwlabel: nullable TKwlabel,
+               n_id: nullable TId
+       )
+       do
+               _n_kwlabel = n_kwlabel.as(not null)
+               n_kwlabel.parent = self
+               _n_id = n_id
+               if n_id != null then n_id.parent = self
+       end
 
-    init init_alabel (
-            n_kwlabel: nullable TKwlabel,
-            n_id: nullable TId
-    )
-    do
-        empty_init
-        _n_kwlabel = n_kwlabel.as(not null)
-       n_kwlabel.parent = self
-        _n_id = n_id.as(not null)
-       n_id.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwlabel == old_child then
+                       n_kwlabel = new_child.as(TKwlabel)
+                       return
+               end
+               if _n_id == old_child then
+                       n_id = new_child.as(nullable TId)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwlabel == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwlabel
-                _n_kwlabel = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwlabel=(node)
+       do
+               _n_kwlabel = node
+               node.parent = self
        end
-        if _n_id == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TId
-                _n_id = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_id=(node)
+       do
+               _n_id = node
+               if node != null then node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwlabel)
-        v.enter_visit(_n_id)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwlabel)
+               v.enter_visit(_n_id)
+       end
 end
 redef class ABlockExpr
-    private init empty_init do end
+       init init_ablockexpr (
+               n_expr: Collection[Object], # Should be Collection[AExpr]
+               n_kwend: nullable TKwend
+       )
+       do
+               self.n_expr.unsafe_add_all(n_expr)
+               _n_kwend = n_kwend
+               if n_kwend != null then n_kwend.parent = self
+       end
 
-    init init_ablockexpr (
-            n_expr: Collection[Object], # Should be Collection[AExpr]
-            n_kwend: nullable TKwend
-    )
-    do
-        empty_init
-       for n in n_expr do
-               assert n isa AExpr
-               _n_expr.add(n)
-               n.parent = self
-       end
-        _n_kwend = n_kwend
-       if n_kwend != null then
-               n_kwend.parent = self
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if n_expr.replace_child(old_child, new_child) then return
+               if _n_kwend == old_child then
+                       n_kwend = new_child.as(nullable TKwend)
+                       return
+               end
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        for i in [0.._n_expr.length[ do
-            if _n_expr[i] == old_child then
-                if new_child != null then
-                   assert new_child isa AExpr
-                    _n_expr[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_expr.remove_at(i)
-                end
-                return
-            end
-        end
-        if _n_kwend == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwend
-                _n_kwend = new_child
-           else
-               _n_kwend = null
-            end
-            return
+       redef fun n_kwend=(node)
+       do
+               _n_kwend = node
+               if node != null then node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-            for n in _n_expr do
-                v.enter_visit(n)
-           end
-        if _n_kwend != null then
-            v.enter_visit(_n_kwend.as(not null))
-        end
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               n_expr.visit_all(v)
+               v.enter_visit(_n_kwend)
+       end
 end
 redef class AVardeclExpr
-    private init empty_init do end
-
-    init init_avardeclexpr (
-            n_kwvar: nullable TKwvar,
-            n_id: nullable TId,
-            n_type: nullable AType,
-            n_assign: nullable TAssign,
-            n_expr: nullable AExpr
-    )
-    do
-        empty_init
-        _n_kwvar = n_kwvar.as(not null)
-       n_kwvar.parent = self
-        _n_id = n_id.as(not null)
-       n_id.parent = self
-        _n_type = n_type
-       if n_type != null then
-               n_type.parent = self
-       end
-        _n_assign = n_assign
-       if n_assign != null then
-               n_assign.parent = self
+       init init_avardeclexpr (
+               n_kwvar: nullable TKwvar,
+               n_id: nullable TId,
+               n_type: nullable AType,
+               n_assign: nullable TAssign,
+               n_expr: nullable AExpr,
+               n_annotations: nullable AAnnotations
+       )
+       do
+               _n_kwvar = n_kwvar
+               if n_kwvar != null then n_kwvar.parent = self
+               _n_id = n_id.as(not null)
+               n_id.parent = self
+               _n_type = n_type
+               if n_type != null then n_type.parent = self
+               _n_assign = n_assign
+               if n_assign != null then n_assign.parent = self
+               _n_expr = n_expr
+               if n_expr != null then n_expr.parent = self
+               _n_annotations = n_annotations
+               if n_annotations != null then n_annotations.parent = self
        end
-        _n_expr = n_expr
-       if n_expr != null then
-               n_expr.parent = self
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwvar == old_child then
+                       n_kwvar = new_child.as(nullable TKwvar)
+                       return
+               end
+               if _n_id == old_child then
+                       n_id = new_child.as(TId)
+                       return
+               end
+               if _n_type == old_child then
+                       n_type = new_child.as(nullable AType)
+                       return
+               end
+               if _n_assign == old_child then
+                       n_assign = new_child.as(nullable TAssign)
+                       return
+               end
+               if _n_expr == old_child then
+                       n_expr = new_child.as(nullable AExpr)
+                       return
+               end
+               if _n_annotations == old_child then
+                       n_annotations = new_child.as(nullable AAnnotations)
+                       return
+               end
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwvar == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwvar
-                _n_kwvar = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwvar=(node)
+       do
+               _n_kwvar = node
+               if node != null then node.parent = self
        end
-        if _n_id == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TId
-                _n_id = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_id=(node)
+       do
+               _n_id = node
+               node.parent = self
        end
-        if _n_type == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AType
-                _n_type = new_child
-           else
-               _n_type = null
-            end
-            return
+       redef fun n_type=(node)
+       do
+               _n_type = node
+               if node != null then node.parent = self
        end
-        if _n_assign == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TAssign
-                _n_assign = new_child
-           else
-               _n_assign = null
-            end
-            return
+       redef fun n_assign=(node)
+       do
+               _n_assign = node
+               if node != null then node.parent = self
        end
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               _n_expr = null
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               if node != null then node.parent = self
+       end
+       redef fun n_annotations=(node)
+       do
+               _n_annotations = node
+               if node != null then node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwvar)
-        v.enter_visit(_n_id)
-        if _n_type != null then
-            v.enter_visit(_n_type.as(not null))
-        end
-        if _n_assign != null then
-            v.enter_visit(_n_assign.as(not null))
-        end
-        if _n_expr != null then
-            v.enter_visit(_n_expr.as(not null))
-        end
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwvar)
+               v.enter_visit(_n_id)
+               v.enter_visit(_n_type)
+               v.enter_visit(_n_assign)
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_annotations)
+       end
 end
 redef class AReturnExpr
-    private init empty_init do end
-
-    init init_areturnexpr (
-            n_kwreturn: nullable TKwreturn,
-            n_expr: nullable AExpr
-    )
-    do
-        empty_init
-        _n_kwreturn = n_kwreturn
-       if n_kwreturn != null then
-               n_kwreturn.parent = self
+       init init_areturnexpr (
+               n_kwreturn: nullable TKwreturn,
+               n_expr: nullable AExpr
+       )
+       do
+               _n_kwreturn = n_kwreturn
+               if n_kwreturn != null then n_kwreturn.parent = self
+               _n_expr = n_expr
+               if n_expr != null then n_expr.parent = self
        end
-        _n_expr = n_expr
-       if n_expr != null then
-               n_expr.parent = self
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwreturn == old_child then
+                       n_kwreturn = new_child.as(nullable TKwreturn)
+                       return
+               end
+               if _n_expr == old_child then
+                       n_expr = new_child.as(nullable AExpr)
+                       return
+               end
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwreturn == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwreturn
-                _n_kwreturn = new_child
-           else
-               _n_kwreturn = null
-            end
-            return
+       redef fun n_kwreturn=(node)
+       do
+               _n_kwreturn = node
+               if node != null then node.parent = self
        end
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               _n_expr = null
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               if node != null then node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        if _n_kwreturn != null then
-            v.enter_visit(_n_kwreturn.as(not null))
-        end
-        if _n_expr != null then
-            v.enter_visit(_n_expr.as(not null))
-        end
-    end
-end
-redef class ABreakExpr
-    private init empty_init do end
 
-    init init_abreakexpr (
-            n_kwbreak: nullable TKwbreak,
-            n_label: nullable ALabel,
-            n_expr: nullable AExpr
-    )
-    do
-        empty_init
-        _n_kwbreak = n_kwbreak.as(not null)
-       n_kwbreak.parent = self
-        _n_label = n_label
-       if n_label != null then
-               n_label.parent = self
-       end
-        _n_expr = n_expr
-       if n_expr != null then
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwreturn)
+               v.enter_visit(_n_expr)
+       end
+end
+redef class AYieldExpr
+       init init_ayieldexpr (
+               n_kwyield: nullable TKwyield,
+               n_expr: nullable AExpr
+       )
+       do
+               _n_kwyield = n_kwyield.as(not null)
+               n_kwyield.parent = self
+               _n_expr = n_expr.as(not null)
                n_expr.parent = self
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwbreak == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwbreak
-                _n_kwbreak = new_child
-           else
-               abort
-            end
-            return
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwyield == old_child then
+                       n_kwyield = new_child.as(TKwyield)
+                       return
+               end
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
        end
-        if _n_label == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa ALabel
-                _n_label = new_child
-           else
-               _n_label = null
-            end
-            return
+
+       redef fun n_kwyield=(node)
+       do
+               _n_kwyield = node
+               node.parent = self
        end
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               _n_expr = null
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-    end
-
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwbreak)
-        if _n_label != null then
-            v.enter_visit(_n_label.as(not null))
-        end
-        if _n_expr != null then
-            v.enter_visit(_n_expr.as(not null))
-        end
-    end
-end
-redef class AAbortExpr
-    private init empty_init do end
 
-    init init_aabortexpr (
-            n_kwabort: nullable TKwabort
-    )
-    do
-        empty_init
-        _n_kwabort = n_kwabort.as(not null)
-       n_kwabort.parent = self
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwabort == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwabort
-                _n_kwabort = new_child
-           else
-               abort
-            end
-            return
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwyield)
+               v.enter_visit(_n_expr)
        end
-    end
-
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwabort)
-    end
 end
-redef class AContinueExpr
-    private init empty_init do end
+redef class ABreakExpr
+       init init_abreakexpr (
+               n_kwbreak: nullable TKwbreak,
+               n_label: nullable ALabel
+       )
+       do
+               _n_kwbreak = n_kwbreak.as(not null)
+               n_kwbreak.parent = self
+               _n_label = n_label
+               if n_label != null then n_label.parent = self
+       end
 
-    init init_acontinueexpr (
-            n_kwcontinue: nullable TKwcontinue,
-            n_label: nullable ALabel,
-            n_expr: nullable AExpr
-    )
-    do
-        empty_init
-        _n_kwcontinue = n_kwcontinue
-       if n_kwcontinue != null then
-               n_kwcontinue.parent = self
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwbreak == old_child then
+                       n_kwbreak = new_child.as(TKwbreak)
+                       return
+               end
+               if _n_label == old_child then
+                       n_label = new_child.as(nullable ALabel)
+                       return
+               end
        end
-        _n_label = n_label
-       if n_label != null then
-               n_label.parent = self
+
+       redef fun n_kwbreak=(node)
+       do
+               _n_kwbreak = node
+               node.parent = self
        end
-        _n_expr = n_expr
-       if n_expr != null then
-               n_expr.parent = self
+       redef fun n_label=(node)
+       do
+               _n_label = node
+               if node != null then node.parent = self
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwcontinue == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwcontinue
-                _n_kwcontinue = new_child
-           else
-               _n_kwcontinue = null
-            end
-            return
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwbreak)
+               v.enter_visit(_n_label)
        end
-        if _n_label == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa ALabel
-                _n_label = new_child
-           else
-               _n_label = null
-            end
-            return
+end
+redef class AAbortExpr
+       init init_aabortexpr (
+               n_kwabort: nullable TKwabort
+       )
+       do
+               _n_kwabort = n_kwabort.as(not null)
+               n_kwabort.parent = self
        end
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               _n_expr = null
-            end
-            return
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwabort == old_child then
+                       n_kwabort = new_child.as(TKwabort)
+                       return
+               end
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        if _n_kwcontinue != null then
-            v.enter_visit(_n_kwcontinue.as(not null))
-        end
-        if _n_label != null then
-            v.enter_visit(_n_label.as(not null))
-        end
-        if _n_expr != null then
-            v.enter_visit(_n_expr.as(not null))
-        end
-    end
+       redef fun n_kwabort=(node)
+       do
+               _n_kwabort = node
+               node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwabort)
+       end
 end
-redef class ADoExpr
-    private init empty_init do end
+redef class AContinueExpr
+       init init_acontinueexpr (
+               n_kwcontinue: nullable TKwcontinue,
+               n_label: nullable ALabel
+       )
+       do
+               _n_kwcontinue = n_kwcontinue
+               if n_kwcontinue != null then n_kwcontinue.parent = self
+               _n_label = n_label
+               if n_label != null then n_label.parent = self
+       end
 
-    init init_adoexpr (
-            n_kwdo: nullable TKwdo,
-            n_block: nullable AExpr,
-            n_label: nullable ALabel
-    )
-    do
-        empty_init
-        _n_kwdo = n_kwdo.as(not null)
-       n_kwdo.parent = self
-        _n_block = n_block
-       if n_block != null then
-               n_block.parent = self
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwcontinue == old_child then
+                       n_kwcontinue = new_child.as(nullable TKwcontinue)
+                       return
+               end
+               if _n_label == old_child then
+                       n_label = new_child.as(nullable ALabel)
+                       return
+               end
        end
-        _n_label = n_label
-       if n_label != null then
-               n_label.parent = self
+
+       redef fun n_kwcontinue=(node)
+       do
+               _n_kwcontinue = node
+               if node != null then node.parent = self
+       end
+       redef fun n_label=(node)
+       do
+               _n_label = node
+               if node != null then node.parent = self
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwdo == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwdo
-                _n_kwdo = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwcontinue)
+               v.enter_visit(_n_label)
        end
-        if _n_block == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_block = new_child
-           else
-               _n_block = null
-            end
-            return
+end
+redef class ADoExpr
+       init init_adoexpr (
+               n_kwdo: nullable TKwdo,
+               n_block: nullable AExpr,
+               n_kwcatch: nullable TKwcatch,
+               n_catch: nullable AExpr,
+               n_label: nullable ALabel
+       )
+       do
+               _n_kwdo = n_kwdo.as(not null)
+               n_kwdo.parent = self
+               _n_block = n_block
+               if n_block != null then n_block.parent = self
+               _n_kwcatch = n_kwcatch
+               if n_kwcatch != null then n_kwcatch.parent = self
+               _n_catch = n_catch
+               if n_catch != null then n_catch.parent = self
+               _n_label = n_label
+               if n_label != null then n_label.parent = self
        end
-        if _n_label == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa ALabel
-                _n_label = new_child
-           else
-               _n_label = null
-            end
-            return
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwdo == old_child then
+                       n_kwdo = new_child.as(TKwdo)
+                       return
+               end
+               if _n_block == old_child then
+                       n_block = new_child.as(nullable AExpr)
+                       return
+               end
+               if _n_kwcatch == old_child then
+                       n_kwcatch = new_child.as(nullable TKwcatch)
+                       return
+               end
+               if _n_catch == old_child then
+                       n_catch = new_child.as(nullable AExpr)
+                       return
+               end
+               if _n_label == old_child then
+                       n_label = new_child.as(nullable ALabel)
+                       return
+               end
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwdo)
-        if _n_block != null then
-            v.enter_visit(_n_block.as(not null))
-        end
-        if _n_label != null then
-            v.enter_visit(_n_label.as(not null))
-        end
-    end
+       redef fun n_kwdo=(node)
+       do
+               _n_kwdo = node
+               node.parent = self
+       end
+       redef fun n_block=(node)
+       do
+               _n_block = node
+               if node != null then node.parent = self
+       end
+       redef fun n_kwcatch=(node)
+       do
+               _n_kwcatch = node
+               if node != null then node.parent = self
+       end
+       redef fun n_catch=(node)
+       do
+               _n_catch = node
+               if node != null then node.parent = self
+       end
+       redef fun n_label=(node)
+       do
+               _n_label = node
+               if node != null then node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwdo)
+               v.enter_visit(_n_block)
+               v.enter_visit(_n_kwcatch)
+               v.enter_visit(_n_catch)
+               v.enter_visit(_n_label)
+       end
 end
 redef class AIfExpr
-    private init empty_init do end
-
-    init init_aifexpr (
-            n_kwif: nullable TKwif,
-            n_expr: nullable AExpr,
-            n_then: nullable AExpr,
-            n_else: nullable AExpr
-    )
-    do
-        empty_init
-        _n_kwif = n_kwif.as(not null)
-       n_kwif.parent = self
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_then = n_then
-       if n_then != null then
-               n_then.parent = self
+       init init_aifexpr (
+               n_kwif: nullable TKwif,
+               n_expr: nullable AExpr,
+               n_kwthen: nullable TKwthen,
+               n_then: nullable AExpr,
+               n_kwelse: nullable TKwelse,
+               n_else: nullable AExpr
+       )
+       do
+               _n_kwif = n_kwif.as(not null)
+               n_kwif.parent = self
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_kwthen = n_kwthen.as(not null)
+               n_kwthen.parent = self
+               _n_then = n_then
+               if n_then != null then n_then.parent = self
+               _n_kwelse = n_kwelse
+               if n_kwelse != null then n_kwelse.parent = self
+               _n_else = n_else
+               if n_else != null then n_else.parent = self
        end
-        _n_else = n_else
-       if n_else != null then
-               n_else.parent = self
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwif == old_child then
+                       n_kwif = new_child.as(TKwif)
+                       return
+               end
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_kwthen == old_child then
+                       n_kwthen = new_child.as(TKwthen)
+                       return
+               end
+               if _n_then == old_child then
+                       n_then = new_child.as(nullable AExpr)
+                       return
+               end
+               if _n_kwelse == old_child then
+                       n_kwelse = new_child.as(nullable TKwelse)
+                       return
+               end
+               if _n_else == old_child then
+                       n_else = new_child.as(nullable AExpr)
+                       return
+               end
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwif == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwif
-                _n_kwif = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwif=(node)
+       do
+               _n_kwif = node
+               node.parent = self
        end
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_then == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_then = new_child
-           else
-               _n_then = null
-            end
-            return
+       redef fun n_kwthen=(node)
+       do
+               _n_kwthen = node
+               node.parent = self
        end
-        if _n_else == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_else = new_child
-           else
-               _n_else = null
-            end
-            return
+       redef fun n_then=(node)
+       do
+               _n_then = node
+               if node != null then node.parent = self
+       end
+       redef fun n_kwelse=(node)
+       do
+               _n_kwelse = node
+               if node != null then node.parent = self
+       end
+       redef fun n_else=(node)
+       do
+               _n_else = node
+               if node != null then node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwif)
-        v.enter_visit(_n_expr)
-        if _n_then != null then
-            v.enter_visit(_n_then.as(not null))
-        end
-        if _n_else != null then
-            v.enter_visit(_n_else.as(not null))
-        end
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwif)
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_kwthen)
+               v.enter_visit(_n_then)
+               v.enter_visit(_n_kwelse)
+               v.enter_visit(_n_else)
+       end
 end
 redef class AIfexprExpr
-    private init empty_init do end
-
-    init init_aifexprexpr (
-            n_kwif: nullable TKwif,
-            n_expr: nullable AExpr,
-            n_kwthen: nullable TKwthen,
-            n_then: nullable AExpr,
-            n_kwelse: nullable TKwelse,
-            n_else: nullable AExpr
-    )
-    do
-        empty_init
-        _n_kwif = n_kwif.as(not null)
-       n_kwif.parent = self
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_kwthen = n_kwthen.as(not null)
-       n_kwthen.parent = self
-        _n_then = n_then.as(not null)
-       n_then.parent = self
-        _n_kwelse = n_kwelse.as(not null)
-       n_kwelse.parent = self
-        _n_else = n_else.as(not null)
-       n_else.parent = self
-    end
+       init init_aifexprexpr (
+               n_kwif: nullable TKwif,
+               n_expr: nullable AExpr,
+               n_kwthen: nullable TKwthen,
+               n_then: nullable AExpr,
+               n_kwelse: nullable TKwelse,
+               n_else: nullable AExpr
+       )
+       do
+               _n_kwif = n_kwif.as(not null)
+               n_kwif.parent = self
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_kwthen = n_kwthen.as(not null)
+               n_kwthen.parent = self
+               _n_then = n_then.as(not null)
+               n_then.parent = self
+               _n_kwelse = n_kwelse.as(not null)
+               n_kwelse.parent = self
+               _n_else = n_else.as(not null)
+               n_else.parent = self
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwif == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwif
-                _n_kwif = new_child
-           else
-               abort
-            end
-            return
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwif == old_child then
+                       n_kwif = new_child.as(TKwif)
+                       return
+               end
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_kwthen == old_child then
+                       n_kwthen = new_child.as(TKwthen)
+                       return
+               end
+               if _n_then == old_child then
+                       n_then = new_child.as(AExpr)
+                       return
+               end
+               if _n_kwelse == old_child then
+                       n_kwelse = new_child.as(TKwelse)
+                       return
+               end
+               if _n_else == old_child then
+                       n_else = new_child.as(AExpr)
+                       return
+               end
        end
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun n_kwif=(node)
+       do
+               _n_kwif = node
+               node.parent = self
        end
-        if _n_kwthen == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwthen
-                _n_kwthen = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_then == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_then = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwthen=(node)
+       do
+               _n_kwthen = node
+               node.parent = self
        end
-        if _n_kwelse == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwelse
-                _n_kwelse = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_then=(node)
+       do
+               _n_then = node
+               node.parent = self
        end
-        if _n_else == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_else = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwelse=(node)
+       do
+               _n_kwelse = node
+               node.parent = self
+       end
+       redef fun n_else=(node)
+       do
+               _n_else = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwif)
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_kwthen)
-        v.enter_visit(_n_then)
-        v.enter_visit(_n_kwelse)
-        v.enter_visit(_n_else)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwif)
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_kwthen)
+               v.enter_visit(_n_then)
+               v.enter_visit(_n_kwelse)
+               v.enter_visit(_n_else)
+       end
 end
 redef class AWhileExpr
-    private init empty_init do end
-
-    init init_awhileexpr (
-            n_kwwhile: nullable TKwwhile,
-            n_expr: nullable AExpr,
-            n_kwdo: nullable TKwdo,
-            n_block: nullable AExpr,
-            n_label: nullable ALabel
-    )
-    do
-        empty_init
-        _n_kwwhile = n_kwwhile.as(not null)
-       n_kwwhile.parent = self
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_kwdo = n_kwdo.as(not null)
-       n_kwdo.parent = self
-        _n_block = n_block
-       if n_block != null then
-               n_block.parent = self
-       end
-        _n_label = n_label
-       if n_label != null then
-               n_label.parent = self
+       init init_awhileexpr (
+               n_kwwhile: nullable TKwwhile,
+               n_expr: nullable AExpr,
+               n_kwdo: nullable TKwdo,
+               n_block: nullable AExpr,
+               n_label: nullable ALabel
+       )
+       do
+               _n_kwwhile = n_kwwhile.as(not null)
+               n_kwwhile.parent = self
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_kwdo = n_kwdo.as(not null)
+               n_kwdo.parent = self
+               _n_block = n_block
+               if n_block != null then n_block.parent = self
+               _n_label = n_label
+               if n_label != null then n_label.parent = self
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwwhile == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwwhile
-                _n_kwwhile = new_child
-           else
-               abort
-            end
-            return
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwwhile == old_child then
+                       n_kwwhile = new_child.as(TKwwhile)
+                       return
+               end
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_kwdo == old_child then
+                       n_kwdo = new_child.as(TKwdo)
+                       return
+               end
+               if _n_block == old_child then
+                       n_block = new_child.as(nullable AExpr)
+                       return
+               end
+               if _n_label == old_child then
+                       n_label = new_child.as(nullable ALabel)
+                       return
+               end
        end
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun n_kwwhile=(node)
+       do
+               _n_kwwhile = node
+               node.parent = self
        end
-        if _n_kwdo == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwdo
-                _n_kwdo = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_block == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_block = new_child
-           else
-               _n_block = null
-            end
-            return
+       redef fun n_kwdo=(node)
+       do
+               _n_kwdo = node
+               node.parent = self
        end
-        if _n_label == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa ALabel
-                _n_label = new_child
-           else
-               _n_label = null
-            end
-            return
+       redef fun n_block=(node)
+       do
+               _n_block = node
+               if node != null then node.parent = self
+       end
+       redef fun n_label=(node)
+       do
+               _n_label = node
+               if node != null then node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwwhile)
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_kwdo)
-        if _n_block != null then
-            v.enter_visit(_n_block.as(not null))
-        end
-        if _n_label != null then
-            v.enter_visit(_n_label.as(not null))
-        end
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwwhile)
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_kwdo)
+               v.enter_visit(_n_block)
+               v.enter_visit(_n_label)
+       end
 end
 redef class ALoopExpr
-    private init empty_init do end
-
-    init init_aloopexpr (
-            n_kwloop: nullable TKwloop,
-            n_block: nullable AExpr,
-            n_label: nullable ALabel
-    )
-    do
-        empty_init
-        _n_kwloop = n_kwloop.as(not null)
-       n_kwloop.parent = self
-        _n_block = n_block
-       if n_block != null then
-               n_block.parent = self
+       init init_aloopexpr (
+               n_kwloop: nullable TKwloop,
+               n_block: nullable AExpr,
+               n_label: nullable ALabel
+       )
+       do
+               _n_kwloop = n_kwloop.as(not null)
+               n_kwloop.parent = self
+               _n_block = n_block
+               if n_block != null then n_block.parent = self
+               _n_label = n_label
+               if n_label != null then n_label.parent = self
        end
-        _n_label = n_label
-       if n_label != null then
-               n_label.parent = self
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwloop == old_child then
+                       n_kwloop = new_child.as(TKwloop)
+                       return
+               end
+               if _n_block == old_child then
+                       n_block = new_child.as(nullable AExpr)
+                       return
+               end
+               if _n_label == old_child then
+                       n_label = new_child.as(nullable ALabel)
+                       return
+               end
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwloop == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwloop
-                _n_kwloop = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwloop=(node)
+       do
+               _n_kwloop = node
+               node.parent = self
        end
-        if _n_block == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_block = new_child
-           else
-               _n_block = null
-            end
-            return
+       redef fun n_block=(node)
+       do
+               _n_block = node
+               if node != null then node.parent = self
        end
-        if _n_label == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa ALabel
-                _n_label = new_child
-           else
-               _n_label = null
-            end
-            return
+       redef fun n_label=(node)
+       do
+               _n_label = node
+               if node != null then node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwloop)
-        if _n_block != null then
-            v.enter_visit(_n_block.as(not null))
-        end
-        if _n_label != null then
-            v.enter_visit(_n_label.as(not null))
-        end
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwloop)
+               v.enter_visit(_n_block)
+               v.enter_visit(_n_label)
+       end
 end
 redef class AForExpr
-    private init empty_init do end
-
-    init init_aforexpr (
-            n_kwfor: nullable TKwfor,
-            n_ids: Collection[Object], # Should be Collection[TId]
-            n_expr: nullable AExpr,
-            n_kwdo: nullable TKwdo,
-            n_block: nullable AExpr,
-            n_label: nullable ALabel
-    )
-    do
-        empty_init
-        _n_kwfor = n_kwfor.as(not null)
-       n_kwfor.parent = self
-       for n in n_ids do
-               assert n isa TId
-               _n_ids.add(n)
-               n.parent = self
-       end
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_kwdo = n_kwdo.as(not null)
-       n_kwdo.parent = self
-        _n_block = n_block
-       if n_block != null then
-               n_block.parent = self
-       end
-        _n_label = n_label
-       if n_label != null then
-               n_label.parent = self
+       init init_aforexpr (
+               n_kwfor: nullable TKwfor,
+               n_groups: Collection[Object], # Should be Collection[AForGroup]
+               n_kwdo: nullable TKwdo,
+               n_block: nullable AExpr,
+               n_label: nullable ALabel
+       )
+       do
+               _n_kwfor = n_kwfor.as(not null)
+               n_kwfor.parent = self
+               self.n_groups.unsafe_add_all(n_groups)
+               _n_kwdo = n_kwdo.as(not null)
+               n_kwdo.parent = self
+               _n_block = n_block
+               if n_block != null then n_block.parent = self
+               _n_label = n_label
+               if n_label != null then n_label.parent = self
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwfor == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwfor
-                _n_kwfor = new_child
-           else
-               abort
-            end
-            return
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwfor == old_child then
+                       n_kwfor = new_child.as(TKwfor)
+                       return
+               end
+               if n_groups.replace_child(old_child, new_child) then return
+               if _n_kwdo == old_child then
+                       n_kwdo = new_child.as(TKwdo)
+                       return
+               end
+               if _n_block == old_child then
+                       n_block = new_child.as(nullable AExpr)
+                       return
+               end
+               if _n_label == old_child then
+                       n_label = new_child.as(nullable ALabel)
+                       return
+               end
        end
-        for i in [0.._n_ids.length[ do
-            if _n_ids[i] == old_child then
-                if new_child != null then
-                   assert new_child isa TId
-                    _n_ids[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_ids.remove_at(i)
-                end
-                return
-            end
-        end
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun n_kwfor=(node)
+       do
+               _n_kwfor = node
+               node.parent = self
        end
-        if _n_kwdo == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwdo
-                _n_kwdo = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwdo=(node)
+       do
+               _n_kwdo = node
+               node.parent = self
        end
-        if _n_block == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_block = new_child
-           else
-               _n_block = null
-            end
-            return
+       redef fun n_block=(node)
+       do
+               _n_block = node
+               if node != null then node.parent = self
        end
-        if _n_label == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa ALabel
-                _n_label = new_child
-           else
-               _n_label = null
-            end
-            return
+       redef fun n_label=(node)
+       do
+               _n_label = node
+               if node != null then node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwfor)
-            for n in _n_ids do
-                v.enter_visit(n)
-           end
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_kwdo)
-        if _n_block != null then
-            v.enter_visit(_n_block.as(not null))
-        end
-        if _n_label != null then
-            v.enter_visit(_n_label.as(not null))
-        end
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwfor)
+               n_groups.visit_all(v)
+               v.enter_visit(_n_kwdo)
+               v.enter_visit(_n_block)
+               v.enter_visit(_n_label)
+       end
+end
+redef class AWithExpr
+       init init_awithexpr (
+               n_kwwith: nullable TKwwith,
+               n_expr: nullable AExpr,
+               n_kwdo: nullable TKwdo,
+               n_block: nullable AExpr,
+               n_label: nullable ALabel
+       )
+       do
+               _n_kwwith = n_kwwith.as(not null)
+               n_kwwith.parent = self
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_kwdo = n_kwdo.as(not null)
+               n_kwdo.parent = self
+               _n_block = n_block
+               if n_block != null then n_block.parent = self
+               _n_label = n_label
+               if n_label != null then n_label.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwwith == old_child then
+                       n_kwwith = new_child.as(TKwwith)
+                       return
+               end
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_kwdo == old_child then
+                       n_kwdo = new_child.as(TKwdo)
+                       return
+               end
+               if _n_block == old_child then
+                       n_block = new_child.as(nullable AExpr)
+                       return
+               end
+               if _n_label == old_child then
+                       n_label = new_child.as(nullable ALabel)
+                       return
+               end
+       end
+
+       redef fun n_kwwith=(node)
+       do
+               _n_kwwith = node
+               node.parent = self
+       end
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
+       end
+       redef fun n_kwdo=(node)
+       do
+               _n_kwdo = node
+               node.parent = self
+       end
+       redef fun n_block=(node)
+       do
+               _n_block = node
+               if node != null then node.parent = self
+       end
+       redef fun n_label=(node)
+       do
+               _n_label = node
+               if node != null then node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwwith)
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_kwdo)
+               v.enter_visit(_n_block)
+               v.enter_visit(_n_label)
+       end
 end
 redef class AAssertExpr
-    private init empty_init do end
-
-    init init_aassertexpr (
-            n_kwassert: nullable TKwassert,
-            n_id: nullable TId,
-            n_expr: nullable AExpr,
-            n_else: nullable AExpr
-    )
-    do
-        empty_init
-        _n_kwassert = n_kwassert.as(not null)
-       n_kwassert.parent = self
-        _n_id = n_id
-       if n_id != null then
-               n_id.parent = self
+       init init_aassertexpr (
+               n_kwassert: nullable TKwassert,
+               n_id: nullable TId,
+               n_expr: nullable AExpr,
+               n_kwelse: nullable TKwelse,
+               n_else: nullable AExpr
+       )
+       do
+               _n_kwassert = n_kwassert.as(not null)
+               n_kwassert.parent = self
+               _n_id = n_id
+               if n_id != null then n_id.parent = self
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_kwelse = n_kwelse
+               if n_kwelse != null then n_kwelse.parent = self
+               _n_else = n_else
+               if n_else != null then n_else.parent = self
        end
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_else = n_else
-       if n_else != null then
-               n_else.parent = self
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwassert == old_child then
+                       n_kwassert = new_child.as(TKwassert)
+                       return
+               end
+               if _n_id == old_child then
+                       n_id = new_child.as(nullable TId)
+                       return
+               end
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_kwelse == old_child then
+                       n_kwelse = new_child.as(nullable TKwelse)
+                       return
+               end
+               if _n_else == old_child then
+                       n_else = new_child.as(nullable AExpr)
+                       return
+               end
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwassert == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwassert
-                _n_kwassert = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwassert=(node)
+       do
+               _n_kwassert = node
+               node.parent = self
        end
-        if _n_id == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TId
-                _n_id = new_child
-           else
-               _n_id = null
-            end
-            return
+       redef fun n_id=(node)
+       do
+               _n_id = node
+               if node != null then node.parent = self
        end
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_else == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_else = new_child
-           else
-               _n_else = null
-            end
-            return
+       redef fun n_kwelse=(node)
+       do
+               _n_kwelse = node
+               if node != null then node.parent = self
+       end
+       redef fun n_else=(node)
+       do
+               _n_else = node
+               if node != null then node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwassert)
-        if _n_id != null then
-            v.enter_visit(_n_id.as(not null))
-        end
-        v.enter_visit(_n_expr)
-        if _n_else != null then
-            v.enter_visit(_n_else.as(not null))
-        end
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwassert)
+               v.enter_visit(_n_id)
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_kwelse)
+               v.enter_visit(_n_else)
+       end
 end
 redef class AOnceExpr
-    private init empty_init do end
+       init init_aonceexpr (
+               n_kwonce: nullable TKwonce,
+               n_expr: nullable AExpr
+       )
+       do
+               _n_kwonce = n_kwonce.as(not null)
+               n_kwonce.parent = self
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+       end
 
-    init init_aonceexpr (
-            n_kwonce: nullable TKwonce,
-            n_expr: nullable AExpr
-    )
-    do
-        empty_init
-        _n_kwonce = n_kwonce.as(not null)
-       n_kwonce.parent = self
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwonce == old_child then
+                       n_kwonce = new_child.as(TKwonce)
+                       return
+               end
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwonce == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwonce
-                _n_kwonce = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwonce=(node)
+       do
+               _n_kwonce = node
+               node.parent = self
        end
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwonce)
-        v.enter_visit(_n_expr)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwonce)
+               v.enter_visit(_n_expr)
+       end
 end
 redef class ASendExpr
-    private init empty_init do end
+       init init_asendexpr (
+               n_expr: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+       end
 
-    init init_asendexpr (
-            n_expr: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+       end
 end
 redef class ABinopExpr
-    private init empty_init do end
+       init init_abinopexpr (
+               n_expr: nullable AExpr,
+               n_expr2: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_expr2 = n_expr2.as(not null)
+               n_expr2.parent = self
+       end
 
-    init init_abinopexpr (
-            n_expr: nullable AExpr,
-            n_expr2: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_expr2 = n_expr2.as(not null)
-       n_expr2.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_expr2 == old_child then
+                       n_expr2 = new_child.as(AExpr)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_expr2 == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr2 = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr2=(node)
+       do
+               _n_expr2 = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_expr2)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_expr2)
+       end
 end
 redef class AOrExpr
-    private init empty_init do end
+       init init_aorexpr (
+               n_expr: nullable AExpr,
+               n_op: nullable TKwor,
+               n_expr2: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+               _n_expr2 = n_expr2.as(not null)
+               n_expr2.parent = self
+       end
 
-    init init_aorexpr (
-            n_expr: nullable AExpr,
-            n_expr2: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_expr2 = n_expr2.as(not null)
-       n_expr2.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_op == old_child then
+                       n_op = new_child.as(TKwor)
+                       return
+               end
+               if _n_expr2 == old_child then
+                       n_expr2 = new_child.as(AExpr)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_expr2 == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr2 = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
+       end
+       redef fun n_expr2=(node)
+       do
+               _n_expr2 = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_expr2)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_op)
+               v.enter_visit(_n_expr2)
+       end
 end
 redef class AAndExpr
-    private init empty_init do end
+       init init_aandexpr (
+               n_expr: nullable AExpr,
+               n_op: nullable TKwand,
+               n_expr2: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+               _n_expr2 = n_expr2.as(not null)
+               n_expr2.parent = self
+       end
 
-    init init_aandexpr (
-            n_expr: nullable AExpr,
-            n_expr2: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_expr2 = n_expr2.as(not null)
-       n_expr2.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_op == old_child then
+                       n_op = new_child.as(TKwand)
+                       return
+               end
+               if _n_expr2 == old_child then
+                       n_expr2 = new_child.as(AExpr)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_expr2 == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr2 = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
+       end
+       redef fun n_expr2=(node)
+       do
+               _n_expr2 = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_expr2)
-    end
-end
-redef class AOrElseExpr
-    private init empty_init do end
 
-    init init_aorelseexpr (
-            n_expr: nullable AExpr,
-            n_expr2: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_expr2 = n_expr2.as(not null)
-       n_expr2.parent = self
-    end
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_op)
+               v.enter_visit(_n_expr2)
+       end
+end
+redef class AOrElseExpr
+       init init_aorelseexpr (
+               n_expr: nullable AExpr,
+               n_op: nullable TKwor,
+               n_kwelse: nullable TKwelse,
+               n_expr2: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+               _n_kwelse = n_kwelse.as(not null)
+               n_kwelse.parent = self
+               _n_expr2 = n_expr2.as(not null)
+               n_expr2.parent = self
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_op == old_child then
+                       n_op = new_child.as(TKwor)
+                       return
+               end
+               if _n_kwelse == old_child then
+                       n_kwelse = new_child.as(TKwelse)
+                       return
+               end
+               if _n_expr2 == old_child then
+                       n_expr2 = new_child.as(AExpr)
+                       return
+               end
        end
-        if _n_expr2 == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr2 = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
+       end
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
+       end
+       redef fun n_kwelse=(node)
+       do
+               _n_kwelse = node
+               node.parent = self
+       end
+       redef fun n_expr2=(node)
+       do
+               _n_expr2 = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_expr2)
-    end
-end
-redef class ANotExpr
-    private init empty_init do end
 
-    init init_anotexpr (
-            n_kwnot: nullable TKwnot,
-            n_expr: nullable AExpr
-    )
-    do
-        empty_init
-        _n_kwnot = n_kwnot.as(not null)
-       n_kwnot.parent = self
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-    end
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_op)
+               v.enter_visit(_n_kwelse)
+               v.enter_visit(_n_expr2)
+       end
+end
+redef class AImpliesExpr
+       init init_aimpliesexpr (
+               n_expr: nullable AExpr,
+               n_op: nullable TKwimplies,
+               n_expr2: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+               _n_expr2 = n_expr2.as(not null)
+               n_expr2.parent = self
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwnot == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwnot
-                _n_kwnot = new_child
-           else
-               abort
-            end
-            return
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_op == old_child then
+                       n_op = new_child.as(TKwimplies)
+                       return
+               end
+               if _n_expr2 == old_child then
+                       n_expr2 = new_child.as(AExpr)
+                       return
+               end
        end
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
+       end
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
+       end
+       redef fun n_expr2=(node)
+       do
+               _n_expr2 = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwnot)
-        v.enter_visit(_n_expr)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_op)
+               v.enter_visit(_n_expr2)
+       end
 end
-redef class AEqExpr
-    private init empty_init do end
+redef class ANotExpr
+       init init_anotexpr (
+               n_kwnot: nullable TKwnot,
+               n_expr: nullable AExpr
+       )
+       do
+               _n_kwnot = n_kwnot.as(not null)
+               n_kwnot.parent = self
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+       end
 
-    init init_aeqexpr (
-            n_expr: nullable AExpr,
-            n_expr2: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_expr2 = n_expr2.as(not null)
-       n_expr2.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwnot == old_child then
+                       n_kwnot = new_child.as(TKwnot)
+                       return
+               end
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwnot=(node)
+       do
+               _n_kwnot = node
+               node.parent = self
        end
-        if _n_expr2 == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr2 = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_expr2)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwnot)
+               v.enter_visit(_n_expr)
+       end
 end
-redef class AEeExpr
-    private init empty_init do end
+redef class AEqExpr
+       init init_aeqexpr (
+               n_expr: nullable AExpr,
+               n_op: nullable TEq,
+               n_expr2: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+               _n_expr2 = n_expr2.as(not null)
+               n_expr2.parent = self
+       end
 
-    init init_aeeexpr (
-            n_expr: nullable AExpr,
-            n_expr2: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_expr2 = n_expr2.as(not null)
-       n_expr2.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_op == old_child then
+                       n_op = new_child.as(TEq)
+                       return
+               end
+               if _n_expr2 == old_child then
+                       n_expr2 = new_child.as(AExpr)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_expr2 == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr2 = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
+       end
+       redef fun n_expr2=(node)
+       do
+               _n_expr2 = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_expr2)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_op)
+               v.enter_visit(_n_expr2)
+       end
 end
 redef class ANeExpr
-    private init empty_init do end
+       init init_aneexpr (
+               n_expr: nullable AExpr,
+               n_op: nullable TNe,
+               n_expr2: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+               _n_expr2 = n_expr2.as(not null)
+               n_expr2.parent = self
+       end
 
-    init init_aneexpr (
-            n_expr: nullable AExpr,
-            n_expr2: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_expr2 = n_expr2.as(not null)
-       n_expr2.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_op == old_child then
+                       n_op = new_child.as(TNe)
+                       return
+               end
+               if _n_expr2 == old_child then
+                       n_expr2 = new_child.as(AExpr)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_expr2 == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr2 = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
+       end
+       redef fun n_expr2=(node)
+       do
+               _n_expr2 = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_expr2)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_op)
+               v.enter_visit(_n_expr2)
+       end
 end
 redef class ALtExpr
-    private init empty_init do end
+       init init_altexpr (
+               n_expr: nullable AExpr,
+               n_op: nullable TLt,
+               n_expr2: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+               _n_expr2 = n_expr2.as(not null)
+               n_expr2.parent = self
+       end
 
-    init init_altexpr (
-            n_expr: nullable AExpr,
-            n_expr2: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_expr2 = n_expr2.as(not null)
-       n_expr2.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_op == old_child then
+                       n_op = new_child.as(TLt)
+                       return
+               end
+               if _n_expr2 == old_child then
+                       n_expr2 = new_child.as(AExpr)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_expr2 == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr2 = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
+       end
+       redef fun n_expr2=(node)
+       do
+               _n_expr2 = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_expr2)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_op)
+               v.enter_visit(_n_expr2)
+       end
 end
 redef class ALeExpr
-    private init empty_init do end
+       init init_aleexpr (
+               n_expr: nullable AExpr,
+               n_op: nullable TLe,
+               n_expr2: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+               _n_expr2 = n_expr2.as(not null)
+               n_expr2.parent = self
+       end
 
-    init init_aleexpr (
-            n_expr: nullable AExpr,
-            n_expr2: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_expr2 = n_expr2.as(not null)
-       n_expr2.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_op == old_child then
+                       n_op = new_child.as(TLe)
+                       return
+               end
+               if _n_expr2 == old_child then
+                       n_expr2 = new_child.as(AExpr)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_expr2 == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr2 = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
+       end
+       redef fun n_expr2=(node)
+       do
+               _n_expr2 = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_expr2)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_op)
+               v.enter_visit(_n_expr2)
+       end
 end
 redef class ALlExpr
-    private init empty_init do end
+       init init_allexpr (
+               n_expr: nullable AExpr,
+               n_op: nullable TLl,
+               n_expr2: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+               _n_expr2 = n_expr2.as(not null)
+               n_expr2.parent = self
+       end
 
-    init init_allexpr (
-            n_expr: nullable AExpr,
-            n_expr2: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_expr2 = n_expr2.as(not null)
-       n_expr2.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_op == old_child then
+                       n_op = new_child.as(TLl)
+                       return
+               end
+               if _n_expr2 == old_child then
+                       n_expr2 = new_child.as(AExpr)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_expr2 == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr2 = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
+       end
+       redef fun n_expr2=(node)
+       do
+               _n_expr2 = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_expr2)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_op)
+               v.enter_visit(_n_expr2)
+       end
 end
 redef class AGtExpr
-    private init empty_init do end
-
-    init init_agtexpr (
-            n_expr: nullable AExpr,
-            n_expr2: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_expr2 = n_expr2.as(not null)
-       n_expr2.parent = self
-    end
+       init init_agtexpr (
+               n_expr: nullable AExpr,
+               n_op: nullable TGt,
+               n_expr2: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+               _n_expr2 = n_expr2.as(not null)
+               n_expr2.parent = self
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_op == old_child then
+                       n_op = new_child.as(TGt)
+                       return
+               end
+               if _n_expr2 == old_child then
+                       n_expr2 = new_child.as(AExpr)
+                       return
+               end
        end
-        if _n_expr2 == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr2 = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
+       end
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
+       end
+       redef fun n_expr2=(node)
+       do
+               _n_expr2 = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_expr2)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_op)
+               v.enter_visit(_n_expr2)
+       end
 end
 redef class AGeExpr
-    private init empty_init do end
+       init init_ageexpr (
+               n_expr: nullable AExpr,
+               n_op: nullable TGe,
+               n_expr2: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+               _n_expr2 = n_expr2.as(not null)
+               n_expr2.parent = self
+       end
 
-    init init_ageexpr (
-            n_expr: nullable AExpr,
-            n_expr2: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_expr2 = n_expr2.as(not null)
-       n_expr2.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_op == old_child then
+                       n_op = new_child.as(TGe)
+                       return
+               end
+               if _n_expr2 == old_child then
+                       n_expr2 = new_child.as(AExpr)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_expr2 == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr2 = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
+       end
+       redef fun n_expr2=(node)
+       do
+               _n_expr2 = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_expr2)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_op)
+               v.enter_visit(_n_expr2)
+       end
 end
 redef class AGgExpr
-    private init empty_init do end
+       init init_aggexpr (
+               n_expr: nullable AExpr,
+               n_op: nullable TGg,
+               n_expr2: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+               _n_expr2 = n_expr2.as(not null)
+               n_expr2.parent = self
+       end
 
-    init init_aggexpr (
-            n_expr: nullable AExpr,
-            n_expr2: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_expr2 = n_expr2.as(not null)
-       n_expr2.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_op == old_child then
+                       n_op = new_child.as(TGg)
+                       return
+               end
+               if _n_expr2 == old_child then
+                       n_expr2 = new_child.as(AExpr)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_expr2 == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr2 = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
+       end
+       redef fun n_expr2=(node)
+       do
+               _n_expr2 = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_expr2)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_op)
+               v.enter_visit(_n_expr2)
+       end
 end
 redef class AIsaExpr
-    private init empty_init do end
+       init init_aisaexpr (
+               n_expr: nullable AExpr,
+               n_kwisa: nullable TKwisa,
+               n_type: nullable AType
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_kwisa = n_kwisa.as(not null)
+               n_kwisa.parent = self
+               _n_type = n_type.as(not null)
+               n_type.parent = self
+       end
 
-    init init_aisaexpr (
-            n_expr: nullable AExpr,
-            n_type: nullable AType
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_type = n_type.as(not null)
-       n_type.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_kwisa == old_child then
+                       n_kwisa = new_child.as(TKwisa)
+                       return
+               end
+               if _n_type == old_child then
+                       n_type = new_child.as(AType)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_type == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AType
-                _n_type = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwisa=(node)
+       do
+               _n_kwisa = node
+               node.parent = self
+       end
+       redef fun n_type=(node)
+       do
+               _n_type = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_type)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_kwisa)
+               v.enter_visit(_n_type)
+       end
 end
 redef class APlusExpr
-    private init empty_init do end
+       init init_aplusexpr (
+               n_expr: nullable AExpr,
+               n_op: nullable TPlus,
+               n_expr2: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+               _n_expr2 = n_expr2.as(not null)
+               n_expr2.parent = self
+       end
 
-    init init_aplusexpr (
-            n_expr: nullable AExpr,
-            n_expr2: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_expr2 = n_expr2.as(not null)
-       n_expr2.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_op == old_child then
+                       n_op = new_child.as(TPlus)
+                       return
+               end
+               if _n_expr2 == old_child then
+                       n_expr2 = new_child.as(AExpr)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_expr2 == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr2 = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
+       end
+       redef fun n_expr2=(node)
+       do
+               _n_expr2 = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_expr2)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_op)
+               v.enter_visit(_n_expr2)
+       end
 end
 redef class AMinusExpr
-    private init empty_init do end
+       init init_aminusexpr (
+               n_expr: nullable AExpr,
+               n_op: nullable TMinus,
+               n_expr2: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+               _n_expr2 = n_expr2.as(not null)
+               n_expr2.parent = self
+       end
 
-    init init_aminusexpr (
-            n_expr: nullable AExpr,
-            n_expr2: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_expr2 = n_expr2.as(not null)
-       n_expr2.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_op == old_child then
+                       n_op = new_child.as(TMinus)
+                       return
+               end
+               if _n_expr2 == old_child then
+                       n_expr2 = new_child.as(AExpr)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_expr2 == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr2 = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
+       end
+       redef fun n_expr2=(node)
+       do
+               _n_expr2 = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_expr2)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_op)
+               v.enter_visit(_n_expr2)
+       end
 end
 redef class AStarshipExpr
-    private init empty_init do end
+       init init_astarshipexpr (
+               n_expr: nullable AExpr,
+               n_op: nullable TStarship,
+               n_expr2: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+               _n_expr2 = n_expr2.as(not null)
+               n_expr2.parent = self
+       end
 
-    init init_astarshipexpr (
-            n_expr: nullable AExpr,
-            n_expr2: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_expr2 = n_expr2.as(not null)
-       n_expr2.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_op == old_child then
+                       n_op = new_child.as(TStarship)
+                       return
+               end
+               if _n_expr2 == old_child then
+                       n_expr2 = new_child.as(AExpr)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_expr2 == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr2 = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
+       end
+       redef fun n_expr2=(node)
+       do
+               _n_expr2 = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_expr2)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_op)
+               v.enter_visit(_n_expr2)
+       end
 end
 redef class AStarExpr
-    private init empty_init do end
+       init init_astarexpr (
+               n_expr: nullable AExpr,
+               n_op: nullable TStar,
+               n_expr2: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+               _n_expr2 = n_expr2.as(not null)
+               n_expr2.parent = self
+       end
 
-    init init_astarexpr (
-            n_expr: nullable AExpr,
-            n_expr2: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_expr2 = n_expr2.as(not null)
-       n_expr2.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_op == old_child then
+                       n_op = new_child.as(TStar)
+                       return
+               end
+               if _n_expr2 == old_child then
+                       n_expr2 = new_child.as(AExpr)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_expr2 == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr2 = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
+       end
+       redef fun n_expr2=(node)
+       do
+               _n_expr2 = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_expr2)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_op)
+               v.enter_visit(_n_expr2)
+       end
 end
-redef class ASlashExpr
-    private init empty_init do end
+redef class AStarstarExpr
+       init init_astarstarexpr (
+               n_expr: nullable AExpr,
+               n_op: nullable TStarstar,
+               n_expr2: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+               _n_expr2 = n_expr2.as(not null)
+               n_expr2.parent = self
+       end
 
-    init init_aslashexpr (
-            n_expr: nullable AExpr,
-            n_expr2: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_expr2 = n_expr2.as(not null)
-       n_expr2.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_op == old_child then
+                       n_op = new_child.as(TStarstar)
+                       return
+               end
+               if _n_expr2 == old_child then
+                       n_expr2 = new_child.as(AExpr)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_expr2 == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr2 = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
+       end
+       redef fun n_expr2=(node)
+       do
+               _n_expr2 = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_expr2)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_op)
+               v.enter_visit(_n_expr2)
+       end
 end
-redef class APercentExpr
-    private init empty_init do end
+redef class ASlashExpr
+       init init_aslashexpr (
+               n_expr: nullable AExpr,
+               n_op: nullable TSlash,
+               n_expr2: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+               _n_expr2 = n_expr2.as(not null)
+               n_expr2.parent = self
+       end
 
-    init init_apercentexpr (
-            n_expr: nullable AExpr,
-            n_expr2: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_expr2 = n_expr2.as(not null)
-       n_expr2.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_op == old_child then
+                       n_op = new_child.as(TSlash)
+                       return
+               end
+               if _n_expr2 == old_child then
+                       n_expr2 = new_child.as(AExpr)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_expr2 == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr2 = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
+       end
+       redef fun n_expr2=(node)
+       do
+               _n_expr2 = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_expr2)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_op)
+               v.enter_visit(_n_expr2)
+       end
 end
-redef class AUminusExpr
-    private init empty_init do end
+redef class APercentExpr
+       init init_apercentexpr (
+               n_expr: nullable AExpr,
+               n_op: nullable TPercent,
+               n_expr2: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+               _n_expr2 = n_expr2.as(not null)
+               n_expr2.parent = self
+       end
 
-    init init_auminusexpr (
-            n_minus: nullable TMinus,
-            n_expr: nullable AExpr
-    )
-    do
-        empty_init
-        _n_minus = n_minus.as(not null)
-       n_minus.parent = self
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_op == old_child then
+                       n_op = new_child.as(TPercent)
+                       return
+               end
+               if _n_expr2 == old_child then
+                       n_expr2 = new_child.as(AExpr)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_minus == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TMinus
-                _n_minus = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
+       end
+       redef fun n_expr2=(node)
+       do
+               _n_expr2 = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_minus)
-        v.enter_visit(_n_expr)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_op)
+               v.enter_visit(_n_expr2)
+       end
 end
-redef class ANewExpr
-    private init empty_init do end
-
-    init init_anewexpr (
-            n_kwnew: nullable TKwnew,
-            n_type: nullable AType,
-            n_id: nullable TId,
-            n_args: Collection[Object] # Should be Collection[AExpr]
-    )
-    do
-        empty_init
-        _n_kwnew = n_kwnew.as(not null)
-       n_kwnew.parent = self
-        _n_type = n_type.as(not null)
-       n_type.parent = self
-        _n_id = n_id
-       if n_id != null then
-               n_id.parent = self
+redef class APipeExpr
+       init init_apipeexpr (
+               n_expr: nullable AExpr,
+               n_op: nullable TPipe,
+               n_expr2: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+               _n_expr2 = n_expr2.as(not null)
+               n_expr2.parent = self
        end
-       for n in n_args do
-               assert n isa AExpr
-               _n_args.add(n)
-               n.parent = self
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_op == old_child then
+                       n_op = new_child.as(TPipe)
+                       return
+               end
+               if _n_expr2 == old_child then
+                       n_expr2 = new_child.as(AExpr)
+                       return
+               end
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwnew == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwnew
-                _n_kwnew = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_type == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AType
-                _n_type = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-        if _n_id == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TId
-                _n_id = new_child
-           else
-               _n_id = null
-            end
-            return
+       redef fun n_expr2=(node)
+       do
+               _n_expr2 = node
+               node.parent = self
        end
-        for i in [0.._n_args.length[ do
-            if _n_args[i] == old_child then
-                if new_child != null then
-                   assert new_child isa AExpr
-                    _n_args[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_args.remove_at(i)
-                end
-                return
-            end
-        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwnew)
-        v.enter_visit(_n_type)
-        if _n_id != null then
-            v.enter_visit(_n_id.as(not null))
-        end
-            for n in _n_args do
-                v.enter_visit(n)
-           end
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_op)
+               v.enter_visit(_n_expr2)
+       end
 end
-redef class AAttrExpr
-    private init empty_init do end
+redef class ACaretExpr
+       init init_acaretexpr (
+               n_expr: nullable AExpr,
+               n_op: nullable TCaret,
+               n_expr2: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+               _n_expr2 = n_expr2.as(not null)
+               n_expr2.parent = self
+       end
 
-    init init_aattrexpr (
-            n_expr: nullable AExpr,
-            n_id: nullable TAttrid
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_id = n_id.as(not null)
-       n_id.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_op == old_child then
+                       n_op = new_child.as(TCaret)
+                       return
+               end
+               if _n_expr2 == old_child then
+                       n_expr2 = new_child.as(AExpr)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_id == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TAttrid
-                _n_id = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
+       end
+       redef fun n_expr2=(node)
+       do
+               _n_expr2 = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_id)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_op)
+               v.enter_visit(_n_expr2)
+       end
 end
-redef class AAttrAssignExpr
-    private init empty_init do end
-
-    init init_aattrassignexpr (
-            n_expr: nullable AExpr,
-            n_id: nullable TAttrid,
-            n_assign: nullable TAssign,
-            n_value: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_id = n_id.as(not null)
-       n_id.parent = self
-        _n_assign = n_assign.as(not null)
-       n_assign.parent = self
-        _n_value = n_value.as(not null)
-       n_value.parent = self
-    end
+redef class AAmpExpr
+       init init_aampexpr (
+               n_expr: nullable AExpr,
+               n_op: nullable TAmp,
+               n_expr2: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+               _n_expr2 = n_expr2.as(not null)
+               n_expr2.parent = self
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_op == old_child then
+                       n_op = new_child.as(TAmp)
+                       return
+               end
+               if _n_expr2 == old_child then
+                       n_expr2 = new_child.as(AExpr)
+                       return
+               end
        end
-        if _n_id == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TAttrid
-                _n_id = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_assign == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TAssign
-                _n_assign = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-        if _n_value == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_value = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr2=(node)
+       do
+               _n_expr2 = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_id)
-        v.enter_visit(_n_assign)
-        v.enter_visit(_n_value)
-    end
-end
-redef class AAttrReassignExpr
-    private init empty_init do end
-
-    init init_aattrreassignexpr (
-            n_expr: nullable AExpr,
-            n_id: nullable TAttrid,
-            n_assign_op: nullable AAssignOp,
-            n_value: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_id = n_id.as(not null)
-       n_id.parent = self
-        _n_assign_op = n_assign_op.as(not null)
-       n_assign_op.parent = self
-        _n_value = n_value.as(not null)
-       n_value.parent = self
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_op)
+               v.enter_visit(_n_expr2)
        end
-        if _n_id == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TAttrid
-                _n_id = new_child
-           else
-               abort
-            end
-            return
+end
+redef class AUminusExpr
+       init init_auminusexpr (
+               n_op: nullable TMinus,
+               n_expr: nullable AExpr
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
        end
-        if _n_assign_op == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AAssignOp
-                _n_assign_op = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TMinus)
+                       return
+               end
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
        end
-        if _n_value == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_value = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
+       end
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_id)
-        v.enter_visit(_n_assign_op)
-        v.enter_visit(_n_value)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+               v.enter_visit(_n_expr)
+       end
 end
-redef class ACallExpr
-    private init empty_init do end
-
-    init init_acallexpr (
-            n_expr: nullable AExpr,
-            n_id: nullable TId,
-            n_args: Collection[Object], # Should be Collection[AExpr]
-            n_closure_defs: Collection[Object] # Should be Collection[AClosureDef]
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_id = n_id.as(not null)
-       n_id.parent = self
-       for n in n_args do
-               assert n isa AExpr
-               _n_args.add(n)
-               n.parent = self
-       end
-       for n in n_closure_defs do
-               assert n isa AClosureDef
-               _n_closure_defs.add(n)
-               n.parent = self
+redef class AUplusExpr
+       init init_auplusexpr (
+               n_op: nullable TPlus,
+               n_expr: nullable AExpr
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TPlus)
+                       return
+               end
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
        end
-        if _n_id == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TId
-                _n_id = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
+       end
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        for i in [0.._n_args.length[ do
-            if _n_args[i] == old_child then
-                if new_child != null then
-                   assert new_child isa AExpr
-                    _n_args[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_args.remove_at(i)
-                end
-                return
-            end
-        end
-        for i in [0.._n_closure_defs.length[ do
-            if _n_closure_defs[i] == old_child then
-                if new_child != null then
-                   assert new_child isa AClosureDef
-                    _n_closure_defs[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_closure_defs.remove_at(i)
-                end
-                return
-            end
-        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_id)
-            for n in _n_args do
-                v.enter_visit(n)
-           end
-            for n in _n_closure_defs do
-                v.enter_visit(n)
-           end
-    end
-end
-redef class ACallAssignExpr
-    private init empty_init do end
-
-    init init_acallassignexpr (
-            n_expr: nullable AExpr,
-            n_id: nullable TId,
-            n_args: Collection[Object], # Should be Collection[AExpr]
-            n_assign: nullable TAssign,
-            n_value: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_id = n_id.as(not null)
-       n_id.parent = self
-       for n in n_args do
-               assert n isa AExpr
-               _n_args.add(n)
-               n.parent = self
-       end
-        _n_assign = n_assign.as(not null)
-       n_assign.parent = self
-        _n_value = n_value.as(not null)
-       n_value.parent = self
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+               v.enter_visit(_n_expr)
        end
-        if _n_id == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TId
-                _n_id = new_child
-           else
-               abort
-            end
-            return
+end
+redef class AUtildeExpr
+       init init_autildeexpr (
+               n_op: nullable TTilde,
+               n_expr: nullable AExpr
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
        end
-        for i in [0.._n_args.length[ do
-            if _n_args[i] == old_child then
-                if new_child != null then
-                   assert new_child isa AExpr
-                    _n_args[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_args.remove_at(i)
-                end
-                return
-            end
-        end
-        if _n_assign == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TAssign
-                _n_assign = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TTilde)
+                       return
+               end
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
        end
-        if _n_value == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_value = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
+       end
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_id)
-            for n in _n_args do
-                v.enter_visit(n)
-           end
-        v.enter_visit(_n_assign)
-        v.enter_visit(_n_value)
-    end
-end
-redef class ACallReassignExpr
-    private init empty_init do end
-
-    init init_acallreassignexpr (
-            n_expr: nullable AExpr,
-            n_id: nullable TId,
-            n_args: Collection[Object], # Should be Collection[AExpr]
-            n_assign_op: nullable AAssignOp,
-            n_value: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_id = n_id.as(not null)
-       n_id.parent = self
-       for n in n_args do
-               assert n isa AExpr
-               _n_args.add(n)
-               n.parent = self
-       end
-        _n_assign_op = n_assign_op.as(not null)
-       n_assign_op.parent = self
-        _n_value = n_value.as(not null)
-       n_value.parent = self
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+               v.enter_visit(_n_expr)
        end
-        if _n_id == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TId
-                _n_id = new_child
-           else
-               abort
-            end
-            return
+end
+redef class ANewExpr
+       init init_anewexpr (
+               n_kwnew: nullable TKwnew,
+               n_type: nullable AType,
+               n_qid: nullable AQid,
+               n_args: nullable AExprs
+       )
+       do
+               _n_kwnew = n_kwnew.as(not null)
+               n_kwnew.parent = self
+               _n_type = n_type.as(not null)
+               n_type.parent = self
+               _n_qid = n_qid
+               if n_qid != null then n_qid.parent = self
+               _n_args = n_args.as(not null)
+               n_args.parent = self
        end
-        for i in [0.._n_args.length[ do
-            if _n_args[i] == old_child then
-                if new_child != null then
-                   assert new_child isa AExpr
-                    _n_args[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_args.remove_at(i)
-                end
-                return
-            end
-        end
-        if _n_assign_op == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AAssignOp
-                _n_assign_op = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwnew == old_child then
+                       n_kwnew = new_child.as(TKwnew)
+                       return
+               end
+               if _n_type == old_child then
+                       n_type = new_child.as(AType)
+                       return
+               end
+               if _n_qid == old_child then
+                       n_qid = new_child.as(nullable AQid)
+                       return
+               end
+               if _n_args == old_child then
+                       n_args = new_child.as(AExprs)
+                       return
+               end
        end
-        if _n_value == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_value = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun n_kwnew=(node)
+       do
+               _n_kwnew = node
+               node.parent = self
+       end
+       redef fun n_type=(node)
+       do
+               _n_type = node
+               node.parent = self
+       end
+       redef fun n_qid=(node)
+       do
+               _n_qid = node
+               if node != null then node.parent = self
+       end
+       redef fun n_args=(node)
+       do
+               _n_args = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_id)
-            for n in _n_args do
-                v.enter_visit(n)
-           end
-        v.enter_visit(_n_assign_op)
-        v.enter_visit(_n_value)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwnew)
+               v.enter_visit(_n_type)
+               v.enter_visit(_n_qid)
+               v.enter_visit(_n_args)
+       end
 end
-redef class ASuperExpr
-    private init empty_init do end
+redef class AAttrExpr
+       init init_aattrexpr (
+               n_expr: nullable AExpr,
+               n_id: nullable TAttrid
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_id = n_id.as(not null)
+               n_id.parent = self
+       end
 
-    init init_asuperexpr (
-            n_qualified: nullable AQualified,
-            n_kwsuper: nullable TKwsuper,
-            n_args: Collection[Object] # Should be Collection[AExpr]
-    )
-    do
-        empty_init
-        _n_qualified = n_qualified
-       if n_qualified != null then
-               n_qualified.parent = self
-       end
-        _n_kwsuper = n_kwsuper.as(not null)
-       n_kwsuper.parent = self
-       for n in n_args do
-               assert n isa AExpr
-               _n_args.add(n)
-               n.parent = self
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_id == old_child then
+                       n_id = new_child.as(TAttrid)
+                       return
+               end
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_qualified == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AQualified
-                _n_qualified = new_child
-           else
-               _n_qualified = null
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_kwsuper == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwsuper
-                _n_kwsuper = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_id=(node)
+       do
+               _n_id = node
+               node.parent = self
        end
-        for i in [0.._n_args.length[ do
-            if _n_args[i] == old_child then
-                if new_child != null then
-                   assert new_child isa AExpr
-                    _n_args[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_args.remove_at(i)
-                end
-                return
-            end
-        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        if _n_qualified != null then
-            v.enter_visit(_n_qualified.as(not null))
-        end
-        v.enter_visit(_n_kwsuper)
-            for n in _n_args do
-                v.enter_visit(n)
-           end
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_id)
+       end
 end
-redef class AInitExpr
-    private init empty_init do end
+redef class AAttrAssignExpr
+       init init_aattrassignexpr (
+               n_expr: nullable AExpr,
+               n_id: nullable TAttrid,
+               n_assign: nullable TAssign,
+               n_value: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_id = n_id.as(not null)
+               n_id.parent = self
+               _n_assign = n_assign.as(not null)
+               n_assign.parent = self
+               _n_value = n_value.as(not null)
+               n_value.parent = self
+       end
 
-    init init_ainitexpr (
-            n_expr: nullable AExpr,
-            n_kwinit: nullable TKwinit,
-            n_args: Collection[Object] # Should be Collection[AExpr]
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_kwinit = n_kwinit.as(not null)
-       n_kwinit.parent = self
-       for n in n_args do
-               assert n isa AExpr
-               _n_args.add(n)
-               n.parent = self
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_id == old_child then
+                       n_id = new_child.as(TAttrid)
+                       return
+               end
+               if _n_assign == old_child then
+                       n_assign = new_child.as(TAssign)
+                       return
+               end
+               if _n_value == old_child then
+                       n_value = new_child.as(AExpr)
+                       return
+               end
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_kwinit == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwinit
-                _n_kwinit = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_id=(node)
+       do
+               _n_id = node
+               node.parent = self
+       end
+       redef fun n_assign=(node)
+       do
+               _n_assign = node
+               node.parent = self
+       end
+       redef fun n_value=(node)
+       do
+               _n_value = node
+               node.parent = self
        end
-        for i in [0.._n_args.length[ do
-            if _n_args[i] == old_child then
-                if new_child != null then
-                   assert new_child isa AExpr
-                    _n_args[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_args.remove_at(i)
-                end
-                return
-            end
-        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_kwinit)
-            for n in _n_args do
-                v.enter_visit(n)
-           end
-    end
-end
-redef class ABraExpr
-    private init empty_init do end
 
-    init init_abraexpr (
-            n_expr: nullable AExpr,
-            n_args: Collection[Object], # Should be Collection[AExpr]
-            n_closure_defs: Collection[Object] # Should be Collection[AClosureDef]
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-       for n in n_args do
-               assert n isa AExpr
-               _n_args.add(n)
-               n.parent = self
-       end
-       for n in n_closure_defs do
-               assert n isa AClosureDef
-               _n_closure_defs.add(n)
-               n.parent = self
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_id)
+               v.enter_visit(_n_assign)
+               v.enter_visit(_n_value)
        end
-    end
-
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+end
+redef class AAttrReassignExpr
+       init init_aattrreassignexpr (
+               n_expr: nullable AExpr,
+               n_id: nullable TAttrid,
+               n_assign_op: nullable AAssignOp,
+               n_value: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_id = n_id.as(not null)
+               n_id.parent = self
+               _n_assign_op = n_assign_op.as(not null)
+               n_assign_op.parent = self
+               _n_value = n_value.as(not null)
+               n_value.parent = self
        end
-        for i in [0.._n_args.length[ do
-            if _n_args[i] == old_child then
-                if new_child != null then
-                   assert new_child isa AExpr
-                    _n_args[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_args.remove_at(i)
-                end
-                return
-            end
-        end
-        for i in [0.._n_closure_defs.length[ do
-            if _n_closure_defs[i] == old_child then
-                if new_child != null then
-                   assert new_child isa AClosureDef
-                    _n_closure_defs[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_closure_defs.remove_at(i)
-                end
-                return
-            end
-        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-            for n in _n_args do
-                v.enter_visit(n)
-           end
-            for n in _n_closure_defs do
-                v.enter_visit(n)
-           end
-    end
-end
-redef class ABraAssignExpr
-    private init empty_init do end
-
-    init init_abraassignexpr (
-            n_expr: nullable AExpr,
-            n_args: Collection[Object], # Should be Collection[AExpr]
-            n_assign: nullable TAssign,
-            n_value: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-       for n in n_args do
-               assert n isa AExpr
-               _n_args.add(n)
-               n.parent = self
-       end
-        _n_assign = n_assign.as(not null)
-       n_assign.parent = self
-        _n_value = n_value.as(not null)
-       n_value.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_id == old_child then
+                       n_id = new_child.as(TAttrid)
+                       return
+               end
+               if _n_assign_op == old_child then
+                       n_assign_op = new_child.as(AAssignOp)
+                       return
+               end
+               if _n_value == old_child then
+                       n_value = new_child.as(AExpr)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        for i in [0.._n_args.length[ do
-            if _n_args[i] == old_child then
-                if new_child != null then
-                   assert new_child isa AExpr
-                    _n_args[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_args.remove_at(i)
-                end
-                return
-            end
-        end
-        if _n_assign == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TAssign
-                _n_assign = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_id=(node)
+       do
+               _n_id = node
+               node.parent = self
        end
-        if _n_value == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_value = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_assign_op=(node)
+       do
+               _n_assign_op = node
+               node.parent = self
+       end
+       redef fun n_value=(node)
+       do
+               _n_value = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-            for n in _n_args do
-                v.enter_visit(n)
-           end
-        v.enter_visit(_n_assign)
-        v.enter_visit(_n_value)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_id)
+               v.enter_visit(_n_assign_op)
+               v.enter_visit(_n_value)
+       end
 end
-redef class ABraReassignExpr
-    private init empty_init do end
-
-    init init_abrareassignexpr (
-            n_expr: nullable AExpr,
-            n_args: Collection[Object], # Should be Collection[AExpr]
-            n_assign_op: nullable AAssignOp,
-            n_value: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-       for n in n_args do
-               assert n isa AExpr
-               _n_args.add(n)
-               n.parent = self
-       end
-        _n_assign_op = n_assign_op.as(not null)
-       n_assign_op.parent = self
-        _n_value = n_value.as(not null)
-       n_value.parent = self
-    end
+redef class ACallExpr
+       init init_acallexpr (
+               n_expr: nullable AExpr,
+               n_qid: nullable AQid,
+               n_args: nullable AExprs
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_qid = n_qid.as(not null)
+               n_qid.parent = self
+               _n_args = n_args.as(not null)
+               n_args.parent = self
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_qid == old_child then
+                       n_qid = new_child.as(AQid)
+                       return
+               end
+               if _n_args == old_child then
+                       n_args = new_child.as(AExprs)
+                       return
+               end
        end
-        for i in [0.._n_args.length[ do
-            if _n_args[i] == old_child then
-                if new_child != null then
-                   assert new_child isa AExpr
-                    _n_args[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_args.remove_at(i)
-                end
-                return
-            end
-        end
-        if _n_assign_op == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AAssignOp
-                _n_assign_op = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_value == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_value = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_qid=(node)
+       do
+               _n_qid = node
+               node.parent = self
+       end
+       redef fun n_args=(node)
+       do
+               _n_args = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-            for n in _n_args do
-                v.enter_visit(n)
-           end
-        v.enter_visit(_n_assign_op)
-        v.enter_visit(_n_value)
-    end
-end
-redef class AClosureCallExpr
-    private init empty_init do end
 
-    init init_aclosurecallexpr (
-            n_id: nullable TId,
-            n_args: Collection[Object], # Should be Collection[AExpr]
-            n_closure_defs: Collection[Object] # Should be Collection[AClosureDef]
-    )
-    do
-        empty_init
-        _n_id = n_id.as(not null)
-       n_id.parent = self
-       for n in n_args do
-               assert n isa AExpr
-               _n_args.add(n)
-               n.parent = self
-       end
-       for n in n_closure_defs do
-               assert n isa AClosureDef
-               _n_closure_defs.add(n)
-               n.parent = self
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_qid)
+               v.enter_visit(_n_args)
+       end
+end
+redef class ACallrefExpr
+       init init_acallrefexpr (
+               n_amp: nullable TAmp,
+               n_expr: nullable AExpr,
+               n_qid: nullable AQid,
+               n_args: nullable AExprs
+       )
+       do
+               _n_amp = n_amp.as(not null)
+               n_amp.parent = self
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_qid = n_qid.as(not null)
+               n_qid.parent = self
+               _n_args = n_args.as(not null)
+               n_args.parent = self
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_id == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TId
-                _n_id = new_child
-           else
-               abort
-            end
-            return
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_amp == old_child then
+                       n_amp = new_child.as(TAmp)
+                       return
+               end
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_qid == old_child then
+                       n_qid = new_child.as(AQid)
+                       return
+               end
+               if _n_args == old_child then
+                       n_args = new_child.as(AExprs)
+                       return
+               end
        end
-        for i in [0.._n_args.length[ do
-            if _n_args[i] == old_child then
-                if new_child != null then
-                   assert new_child isa AExpr
-                    _n_args[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_args.remove_at(i)
-                end
-                return
-            end
-        end
-        for i in [0.._n_closure_defs.length[ do
-            if _n_closure_defs[i] == old_child then
-                if new_child != null then
-                   assert new_child isa AClosureDef
-                    _n_closure_defs[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_closure_defs.remove_at(i)
-                end
-                return
-            end
-        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_id)
-            for n in _n_args do
-                v.enter_visit(n)
-           end
-            for n in _n_closure_defs do
-                v.enter_visit(n)
-           end
-    end
-end
-redef class AVarExpr
-    private init empty_init do end
+       redef fun n_amp=(node)
+       do
+               _n_amp = node
+               node.parent = self
+       end
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
+       end
+       redef fun n_qid=(node)
+       do
+               _n_qid = node
+               node.parent = self
+       end
+       redef fun n_args=(node)
+       do
+               _n_args = node
+               node.parent = self
+       end
 
-    init init_avarexpr (
-            n_id: nullable TId
-    )
-    do
-        empty_init
-        _n_id = n_id.as(not null)
-       n_id.parent = self
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_id == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TId
-                _n_id = new_child
-           else
-               abort
-            end
-            return
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_amp)
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_qid)
+               v.enter_visit(_n_args)
        end
-    end
-
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_id)
-    end
 end
-redef class AVarAssignExpr
-    private init empty_init do end
+redef class ACallAssignExpr
+       init init_acallassignexpr (
+               n_expr: nullable AExpr,
+               n_qid: nullable AQid,
+               n_args: nullable AExprs,
+               n_assign: nullable TAssign,
+               n_value: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_qid = n_qid.as(not null)
+               n_qid.parent = self
+               _n_args = n_args.as(not null)
+               n_args.parent = self
+               _n_assign = n_assign.as(not null)
+               n_assign.parent = self
+               _n_value = n_value.as(not null)
+               n_value.parent = self
+       end
 
-    init init_avarassignexpr (
-            n_id: nullable TId,
-            n_assign: nullable TAssign,
-            n_value: nullable AExpr
-    )
-    do
-        empty_init
-        _n_id = n_id.as(not null)
-       n_id.parent = self
-        _n_assign = n_assign.as(not null)
-       n_assign.parent = self
-        _n_value = n_value.as(not null)
-       n_value.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_qid == old_child then
+                       n_qid = new_child.as(AQid)
+                       return
+               end
+               if _n_args == old_child then
+                       n_args = new_child.as(AExprs)
+                       return
+               end
+               if _n_assign == old_child then
+                       n_assign = new_child.as(TAssign)
+                       return
+               end
+               if _n_value == old_child then
+                       n_value = new_child.as(AExpr)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_id == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TId
-                _n_id = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_assign == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TAssign
-                _n_assign = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_qid=(node)
+       do
+               _n_qid = node
+               node.parent = self
        end
-        if _n_value == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_value = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_args=(node)
+       do
+               _n_args = node
+               node.parent = self
+       end
+       redef fun n_assign=(node)
+       do
+               _n_assign = node
+               node.parent = self
+       end
+       redef fun n_value=(node)
+       do
+               _n_value = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_id)
-        v.enter_visit(_n_assign)
-        v.enter_visit(_n_value)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_qid)
+               v.enter_visit(_n_args)
+               v.enter_visit(_n_assign)
+               v.enter_visit(_n_value)
+       end
+end
+redef class ACallReassignExpr
+       init init_acallreassignexpr (
+               n_expr: nullable AExpr,
+               n_qid: nullable AQid,
+               n_args: nullable AExprs,
+               n_assign_op: nullable AAssignOp,
+               n_value: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_qid = n_qid.as(not null)
+               n_qid.parent = self
+               _n_args = n_args.as(not null)
+               n_args.parent = self
+               _n_assign_op = n_assign_op.as(not null)
+               n_assign_op.parent = self
+               _n_value = n_value.as(not null)
+               n_value.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_qid == old_child then
+                       n_qid = new_child.as(AQid)
+                       return
+               end
+               if _n_args == old_child then
+                       n_args = new_child.as(AExprs)
+                       return
+               end
+               if _n_assign_op == old_child then
+                       n_assign_op = new_child.as(AAssignOp)
+                       return
+               end
+               if _n_value == old_child then
+                       n_value = new_child.as(AExpr)
+                       return
+               end
+       end
+
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
+       end
+       redef fun n_qid=(node)
+       do
+               _n_qid = node
+               node.parent = self
+       end
+       redef fun n_args=(node)
+       do
+               _n_args = node
+               node.parent = self
+       end
+       redef fun n_assign_op=(node)
+       do
+               _n_assign_op = node
+               node.parent = self
+       end
+       redef fun n_value=(node)
+       do
+               _n_value = node
+               node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_qid)
+               v.enter_visit(_n_args)
+               v.enter_visit(_n_assign_op)
+               v.enter_visit(_n_value)
+       end
+end
+redef class ASuperExpr
+       init init_asuperexpr (
+               n_qualified: nullable AQualified,
+               n_kwsuper: nullable TKwsuper,
+               n_args: nullable AExprs
+       )
+       do
+               _n_qualified = n_qualified
+               if n_qualified != null then n_qualified.parent = self
+               _n_kwsuper = n_kwsuper.as(not null)
+               n_kwsuper.parent = self
+               _n_args = n_args.as(not null)
+               n_args.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_qualified == old_child then
+                       n_qualified = new_child.as(nullable AQualified)
+                       return
+               end
+               if _n_kwsuper == old_child then
+                       n_kwsuper = new_child.as(TKwsuper)
+                       return
+               end
+               if _n_args == old_child then
+                       n_args = new_child.as(AExprs)
+                       return
+               end
+       end
+
+       redef fun n_qualified=(node)
+       do
+               _n_qualified = node
+               if node != null then node.parent = self
+       end
+       redef fun n_kwsuper=(node)
+       do
+               _n_kwsuper = node
+               node.parent = self
+       end
+       redef fun n_args=(node)
+       do
+               _n_args = node
+               node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_qualified)
+               v.enter_visit(_n_kwsuper)
+               v.enter_visit(_n_args)
+       end
+end
+redef class AInitExpr
+       init init_ainitexpr (
+               n_expr: nullable AExpr,
+               n_kwinit: nullable TKwinit,
+               n_args: nullable AExprs
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_kwinit = n_kwinit.as(not null)
+               n_kwinit.parent = self
+               _n_args = n_args.as(not null)
+               n_args.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_kwinit == old_child then
+                       n_kwinit = new_child.as(TKwinit)
+                       return
+               end
+               if _n_args == old_child then
+                       n_args = new_child.as(AExprs)
+                       return
+               end
+       end
+
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
+       end
+       redef fun n_kwinit=(node)
+       do
+               _n_kwinit = node
+               node.parent = self
+       end
+       redef fun n_args=(node)
+       do
+               _n_args = node
+               node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_kwinit)
+               v.enter_visit(_n_args)
+       end
+end
+redef class ABraExpr
+       init init_abraexpr (
+               n_expr: nullable AExpr,
+               n_args: nullable AExprs
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_args = n_args.as(not null)
+               n_args.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_args == old_child then
+                       n_args = new_child.as(AExprs)
+                       return
+               end
+       end
+
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
+       end
+       redef fun n_args=(node)
+       do
+               _n_args = node
+               node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_args)
+       end
+end
+redef class ABraAssignExpr
+       init init_abraassignexpr (
+               n_expr: nullable AExpr,
+               n_args: nullable AExprs,
+               n_assign: nullable TAssign,
+               n_value: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_args = n_args.as(not null)
+               n_args.parent = self
+               _n_assign = n_assign.as(not null)
+               n_assign.parent = self
+               _n_value = n_value.as(not null)
+               n_value.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_args == old_child then
+                       n_args = new_child.as(AExprs)
+                       return
+               end
+               if _n_assign == old_child then
+                       n_assign = new_child.as(TAssign)
+                       return
+               end
+               if _n_value == old_child then
+                       n_value = new_child.as(AExpr)
+                       return
+               end
+       end
+
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
+       end
+       redef fun n_args=(node)
+       do
+               _n_args = node
+               node.parent = self
+       end
+       redef fun n_assign=(node)
+       do
+               _n_assign = node
+               node.parent = self
+       end
+       redef fun n_value=(node)
+       do
+               _n_value = node
+               node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_args)
+               v.enter_visit(_n_assign)
+               v.enter_visit(_n_value)
+       end
+end
+redef class ABraReassignExpr
+       init init_abrareassignexpr (
+               n_expr: nullable AExpr,
+               n_args: nullable AExprs,
+               n_assign_op: nullable AAssignOp,
+               n_value: nullable AExpr
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_args = n_args.as(not null)
+               n_args.parent = self
+               _n_assign_op = n_assign_op.as(not null)
+               n_assign_op.parent = self
+               _n_value = n_value.as(not null)
+               n_value.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_args == old_child then
+                       n_args = new_child.as(AExprs)
+                       return
+               end
+               if _n_assign_op == old_child then
+                       n_assign_op = new_child.as(AAssignOp)
+                       return
+               end
+               if _n_value == old_child then
+                       n_value = new_child.as(AExpr)
+                       return
+               end
+       end
+
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
+       end
+       redef fun n_args=(node)
+       do
+               _n_args = node
+               node.parent = self
+       end
+       redef fun n_assign_op=(node)
+       do
+               _n_assign_op = node
+               node.parent = self
+       end
+       redef fun n_value=(node)
+       do
+               _n_value = node
+               node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_args)
+               v.enter_visit(_n_assign_op)
+               v.enter_visit(_n_value)
+       end
+end
+redef class AVarExpr
+       init init_avarexpr (
+               n_id: nullable TId
+       )
+       do
+               _n_id = n_id.as(not null)
+               n_id.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_id == old_child then
+                       n_id = new_child.as(TId)
+                       return
+               end
+       end
+
+       redef fun n_id=(node)
+       do
+               _n_id = node
+               node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_id)
+       end
+end
+redef class AVarAssignExpr
+       init init_avarassignexpr (
+               n_id: nullable TId,
+               n_assign: nullable TAssign,
+               n_value: nullable AExpr
+       )
+       do
+               _n_id = n_id.as(not null)
+               n_id.parent = self
+               _n_assign = n_assign.as(not null)
+               n_assign.parent = self
+               _n_value = n_value.as(not null)
+               n_value.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_id == old_child then
+                       n_id = new_child.as(TId)
+                       return
+               end
+               if _n_assign == old_child then
+                       n_assign = new_child.as(TAssign)
+                       return
+               end
+               if _n_value == old_child then
+                       n_value = new_child.as(AExpr)
+                       return
+               end
+       end
+
+       redef fun n_id=(node)
+       do
+               _n_id = node
+               node.parent = self
+       end
+       redef fun n_assign=(node)
+       do
+               _n_assign = node
+               node.parent = self
+       end
+       redef fun n_value=(node)
+       do
+               _n_value = node
+               node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_id)
+               v.enter_visit(_n_assign)
+               v.enter_visit(_n_value)
+       end
 end
 redef class AVarReassignExpr
-    private init empty_init do end
+       init init_avarreassignexpr (
+               n_id: nullable TId,
+               n_assign_op: nullable AAssignOp,
+               n_value: nullable AExpr
+       )
+       do
+               _n_id = n_id.as(not null)
+               n_id.parent = self
+               _n_assign_op = n_assign_op.as(not null)
+               n_assign_op.parent = self
+               _n_value = n_value.as(not null)
+               n_value.parent = self
+       end
 
-    init init_avarreassignexpr (
-            n_id: nullable TId,
-            n_assign_op: nullable AAssignOp,
-            n_value: nullable AExpr
-    )
-    do
-        empty_init
-        _n_id = n_id.as(not null)
-       n_id.parent = self
-        _n_assign_op = n_assign_op.as(not null)
-       n_assign_op.parent = self
-        _n_value = n_value.as(not null)
-       n_value.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_id == old_child then
+                       n_id = new_child.as(TId)
+                       return
+               end
+               if _n_assign_op == old_child then
+                       n_assign_op = new_child.as(AAssignOp)
+                       return
+               end
+               if _n_value == old_child then
+                       n_value = new_child.as(AExpr)
+                       return
+               end
+       end
+
+       redef fun n_id=(node)
+       do
+               _n_id = node
+               node.parent = self
+       end
+       redef fun n_assign_op=(node)
+       do
+               _n_assign_op = node
+               node.parent = self
+       end
+       redef fun n_value=(node)
+       do
+               _n_value = node
+               node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_id)
+               v.enter_visit(_n_assign_op)
+               v.enter_visit(_n_value)
+       end
+end
+redef class ARangeExpr
+       init init_arangeexpr (
+               n_expr: nullable AExpr,
+               n_expr2: nullable AExpr,
+               n_annotations: nullable AAnnotations
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_expr2 = n_expr2.as(not null)
+               n_expr2.parent = self
+               _n_annotations = n_annotations
+               if n_annotations != null then n_annotations.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_expr2 == old_child then
+                       n_expr2 = new_child.as(AExpr)
+                       return
+               end
+               if _n_annotations == old_child then
+                       n_annotations = new_child.as(nullable AAnnotations)
+                       return
+               end
+       end
+
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
+       end
+       redef fun n_expr2=(node)
+       do
+               _n_expr2 = node
+               node.parent = self
+       end
+       redef fun n_annotations=(node)
+       do
+               _n_annotations = node
+               if node != null then node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_expr2)
+               v.enter_visit(_n_annotations)
+       end
+end
+redef class ACrangeExpr
+       init init_acrangeexpr (
+               n_obra: nullable TObra,
+               n_expr: nullable AExpr,
+               n_dotdot: nullable TDotdot,
+               n_expr2: nullable AExpr,
+               n_cbra: nullable TCbra,
+               n_annotations: nullable AAnnotations
+       )
+       do
+               _n_obra = n_obra.as(not null)
+               n_obra.parent = self
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_dotdot = n_dotdot.as(not null)
+               n_dotdot.parent = self
+               _n_expr2 = n_expr2.as(not null)
+               n_expr2.parent = self
+               _n_cbra = n_cbra.as(not null)
+               n_cbra.parent = self
+               _n_annotations = n_annotations
+               if n_annotations != null then n_annotations.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_obra == old_child then
+                       n_obra = new_child.as(TObra)
+                       return
+               end
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_dotdot == old_child then
+                       n_dotdot = new_child.as(TDotdot)
+                       return
+               end
+               if _n_expr2 == old_child then
+                       n_expr2 = new_child.as(AExpr)
+                       return
+               end
+               if _n_cbra == old_child then
+                       n_cbra = new_child.as(TCbra)
+                       return
+               end
+               if _n_annotations == old_child then
+                       n_annotations = new_child.as(nullable AAnnotations)
+                       return
+               end
+       end
+
+       redef fun n_obra=(node)
+       do
+               _n_obra = node
+               node.parent = self
+       end
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
+       end
+       redef fun n_dotdot=(node)
+       do
+               _n_dotdot = node
+               node.parent = self
+       end
+       redef fun n_expr2=(node)
+       do
+               _n_expr2 = node
+               node.parent = self
+       end
+       redef fun n_cbra=(node)
+       do
+               _n_cbra = node
+               node.parent = self
+       end
+       redef fun n_annotations=(node)
+       do
+               _n_annotations = node
+               if node != null then node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_obra)
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_dotdot)
+               v.enter_visit(_n_expr2)
+               v.enter_visit(_n_cbra)
+               v.enter_visit(_n_annotations)
+       end
+end
+redef class AOrangeExpr
+       init init_aorangeexpr (
+               n_obra: nullable TObra,
+               n_expr: nullable AExpr,
+               n_dotdot: nullable TDotdot,
+               n_expr2: nullable AExpr,
+               n_cbra: nullable TObra,
+               n_annotations: nullable AAnnotations
+       )
+       do
+               _n_obra = n_obra.as(not null)
+               n_obra.parent = self
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_dotdot = n_dotdot.as(not null)
+               n_dotdot.parent = self
+               _n_expr2 = n_expr2.as(not null)
+               n_expr2.parent = self
+               _n_cbra = n_cbra.as(not null)
+               n_cbra.parent = self
+               _n_annotations = n_annotations
+               if n_annotations != null then n_annotations.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_obra == old_child then
+                       n_obra = new_child.as(TObra)
+                       return
+               end
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_dotdot == old_child then
+                       n_dotdot = new_child.as(TDotdot)
+                       return
+               end
+               if _n_expr2 == old_child then
+                       n_expr2 = new_child.as(AExpr)
+                       return
+               end
+               if _n_cbra == old_child then
+                       n_cbra = new_child.as(TObra)
+                       return
+               end
+               if _n_annotations == old_child then
+                       n_annotations = new_child.as(nullable AAnnotations)
+                       return
+               end
+       end
+
+       redef fun n_obra=(node)
+       do
+               _n_obra = node
+               node.parent = self
+       end
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
+       end
+       redef fun n_dotdot=(node)
+       do
+               _n_dotdot = node
+               node.parent = self
+       end
+       redef fun n_expr2=(node)
+       do
+               _n_expr2 = node
+               node.parent = self
+       end
+       redef fun n_cbra=(node)
+       do
+               _n_cbra = node
+               node.parent = self
+       end
+       redef fun n_annotations=(node)
+       do
+               _n_annotations = node
+               if node != null then node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_obra)
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_dotdot)
+               v.enter_visit(_n_expr2)
+               v.enter_visit(_n_cbra)
+               v.enter_visit(_n_annotations)
+       end
+end
+redef class AArrayExpr
+       init init_aarrayexpr (
+               n_obra: nullable TObra,
+               n_exprs: Collection[Object], # Should be Collection[AExpr]
+               n_type: nullable AType,
+               n_cbra: nullable TCbra,
+               n_annotations: nullable AAnnotations
+       )
+       do
+               _n_obra = n_obra.as(not null)
+               n_obra.parent = self
+               self.n_exprs.unsafe_add_all(n_exprs)
+               _n_type = n_type
+               if n_type != null then n_type.parent = self
+               _n_cbra = n_cbra.as(not null)
+               n_cbra.parent = self
+               _n_annotations = n_annotations
+               if n_annotations != null then n_annotations.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_obra == old_child then
+                       n_obra = new_child.as(TObra)
+                       return
+               end
+               if n_exprs.replace_child(old_child, new_child) then return
+               if _n_type == old_child then
+                       n_type = new_child.as(nullable AType)
+                       return
+               end
+               if _n_cbra == old_child then
+                       n_cbra = new_child.as(TCbra)
+                       return
+               end
+               if _n_annotations == old_child then
+                       n_annotations = new_child.as(nullable AAnnotations)
+                       return
+               end
+       end
+
+       redef fun n_obra=(node)
+       do
+               _n_obra = node
+               node.parent = self
+       end
+       redef fun n_type=(node)
+       do
+               _n_type = node
+               if node != null then node.parent = self
+       end
+       redef fun n_cbra=(node)
+       do
+               _n_cbra = node
+               node.parent = self
+       end
+       redef fun n_annotations=(node)
+       do
+               _n_annotations = node
+               if node != null then node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_obra)
+               n_exprs.visit_all(v)
+               v.enter_visit(_n_type)
+               v.enter_visit(_n_cbra)
+               v.enter_visit(_n_annotations)
+       end
+end
+redef class ASelfExpr
+       init init_aselfexpr (
+               n_kwself: nullable TKwself,
+               n_annotations: nullable AAnnotations
+       )
+       do
+               _n_kwself = n_kwself.as(not null)
+               n_kwself.parent = self
+               _n_annotations = n_annotations
+               if n_annotations != null then n_annotations.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwself == old_child then
+                       n_kwself = new_child.as(TKwself)
+                       return
+               end
+               if _n_annotations == old_child then
+                       n_annotations = new_child.as(nullable AAnnotations)
+                       return
+               end
+       end
+
+       redef fun n_kwself=(node)
+       do
+               _n_kwself = node
+               node.parent = self
+       end
+       redef fun n_annotations=(node)
+       do
+               _n_annotations = node
+               if node != null then node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwself)
+               v.enter_visit(_n_annotations)
+       end
+end
+redef class AImplicitSelfExpr
+       init init_aimplicitselfexpr
+       do
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+       end
+
+
+
+       redef fun visit_all(v: Visitor)
+       do
+       end
+end
+redef class ATrueExpr
+       init init_atrueexpr (
+               n_kwtrue: nullable TKwtrue,
+               n_annotations: nullable AAnnotations
+       )
+       do
+               _n_kwtrue = n_kwtrue.as(not null)
+               n_kwtrue.parent = self
+               _n_annotations = n_annotations
+               if n_annotations != null then n_annotations.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwtrue == old_child then
+                       n_kwtrue = new_child.as(TKwtrue)
+                       return
+               end
+               if _n_annotations == old_child then
+                       n_annotations = new_child.as(nullable AAnnotations)
+                       return
+               end
+       end
+
+       redef fun n_kwtrue=(node)
+       do
+               _n_kwtrue = node
+               node.parent = self
+       end
+       redef fun n_annotations=(node)
+       do
+               _n_annotations = node
+               if node != null then node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwtrue)
+               v.enter_visit(_n_annotations)
+       end
+end
+redef class AFalseExpr
+       init init_afalseexpr (
+               n_kwfalse: nullable TKwfalse,
+               n_annotations: nullable AAnnotations
+       )
+       do
+               _n_kwfalse = n_kwfalse.as(not null)
+               n_kwfalse.parent = self
+               _n_annotations = n_annotations
+               if n_annotations != null then n_annotations.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwfalse == old_child then
+                       n_kwfalse = new_child.as(TKwfalse)
+                       return
+               end
+               if _n_annotations == old_child then
+                       n_annotations = new_child.as(nullable AAnnotations)
+                       return
+               end
+       end
+
+       redef fun n_kwfalse=(node)
+       do
+               _n_kwfalse = node
+               node.parent = self
+       end
+       redef fun n_annotations=(node)
+       do
+               _n_annotations = node
+               if node != null then node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwfalse)
+               v.enter_visit(_n_annotations)
+       end
+end
+redef class ANullExpr
+       init init_anullexpr (
+               n_kwnull: nullable TKwnull,
+               n_annotations: nullable AAnnotations
+       )
+       do
+               _n_kwnull = n_kwnull.as(not null)
+               n_kwnull.parent = self
+               _n_annotations = n_annotations
+               if n_annotations != null then n_annotations.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwnull == old_child then
+                       n_kwnull = new_child.as(TKwnull)
+                       return
+               end
+               if _n_annotations == old_child then
+                       n_annotations = new_child.as(nullable AAnnotations)
+                       return
+               end
+       end
+
+       redef fun n_kwnull=(node)
+       do
+               _n_kwnull = node
+               node.parent = self
+       end
+       redef fun n_annotations=(node)
+       do
+               _n_annotations = node
+               if node != null then node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwnull)
+               v.enter_visit(_n_annotations)
+       end
+end
+redef class AIntegerExpr
+       init init_aintegerexpr (
+               n_integer: nullable TInteger,
+               n_annotations: nullable AAnnotations
+       )
+       do
+               _n_integer = n_integer.as(not null)
+               n_integer.parent = self
+               _n_annotations = n_annotations
+               if n_annotations != null then n_annotations.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_integer == old_child then
+                       n_integer = new_child.as(TInteger)
+                       return
+               end
+               if _n_annotations == old_child then
+                       n_annotations = new_child.as(nullable AAnnotations)
+                       return
+               end
+       end
+
+       redef fun n_integer=(node)
+       do
+               _n_integer = node
+               node.parent = self
+       end
+       redef fun n_annotations=(node)
+       do
+               _n_annotations = node
+               if node != null then node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_integer)
+               v.enter_visit(_n_annotations)
+       end
+end
+redef class AFloatExpr
+       init init_afloatexpr (
+               n_float: nullable TFloat,
+               n_annotations: nullable AAnnotations
+       )
+       do
+               _n_float = n_float.as(not null)
+               n_float.parent = self
+               _n_annotations = n_annotations
+               if n_annotations != null then n_annotations.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_float == old_child then
+                       n_float = new_child.as(TFloat)
+                       return
+               end
+               if _n_annotations == old_child then
+                       n_annotations = new_child.as(nullable AAnnotations)
+                       return
+               end
+       end
+
+       redef fun n_float=(node)
+       do
+               _n_float = node
+               node.parent = self
+       end
+       redef fun n_annotations=(node)
+       do
+               _n_annotations = node
+               if node != null then node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_float)
+               v.enter_visit(_n_annotations)
+       end
+end
+redef class ACharExpr
+       init init_acharexpr (
+               n_char: nullable TChar,
+               n_annotations: nullable AAnnotations
+       )
+       do
+               _n_char = n_char.as(not null)
+               n_char.parent = self
+               _n_annotations = n_annotations
+               if n_annotations != null then n_annotations.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_char == old_child then
+                       n_char = new_child.as(TChar)
+                       return
+               end
+               if _n_annotations == old_child then
+                       n_annotations = new_child.as(nullable AAnnotations)
+                       return
+               end
+       end
+
+       redef fun n_char=(node)
+       do
+               _n_char = node
+               node.parent = self
+       end
+       redef fun n_annotations=(node)
+       do
+               _n_annotations = node
+               if node != null then node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_char)
+               v.enter_visit(_n_annotations)
+       end
+end
+redef class AStringExpr
+       init init_astringexpr (
+               n_string: nullable TString,
+               n_annotations: nullable AAnnotations
+       )
+       do
+               _n_string = n_string.as(not null)
+               n_string.parent = self
+               _n_annotations = n_annotations
+               if n_annotations != null then n_annotations.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_string == old_child then
+                       n_string = new_child.as(TString)
+                       return
+               end
+               if _n_annotations == old_child then
+                       n_annotations = new_child.as(nullable AAnnotations)
+                       return
+               end
+       end
+
+       redef fun n_string=(node)
+       do
+               _n_string = node
+               node.parent = self
+       end
+       redef fun n_annotations=(node)
+       do
+               _n_annotations = node
+               if node != null then node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_string)
+               v.enter_visit(_n_annotations)
+       end
+end
+redef class AStartStringExpr
+       init init_astartstringexpr (
+               n_string: nullable TStartString
+       )
+       do
+               _n_string = n_string.as(not null)
+               n_string.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_string == old_child then
+                       n_string = new_child.as(TStartString)
+                       return
+               end
+       end
+
+       redef fun n_string=(node)
+       do
+               _n_string = node
+               node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_string)
+       end
+end
+redef class AMidStringExpr
+       init init_amidstringexpr (
+               n_string: nullable TMidString
+       )
+       do
+               _n_string = n_string.as(not null)
+               n_string.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_string == old_child then
+                       n_string = new_child.as(TMidString)
+                       return
+               end
+       end
+
+       redef fun n_string=(node)
+       do
+               _n_string = node
+               node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_string)
+       end
+end
+redef class AEndStringExpr
+       init init_aendstringexpr (
+               n_string: nullable TEndString
+       )
+       do
+               _n_string = n_string.as(not null)
+               n_string.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_string == old_child then
+                       n_string = new_child.as(TEndString)
+                       return
+               end
+       end
+
+       redef fun n_string=(node)
+       do
+               _n_string = node
+               node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_string)
+       end
+end
+redef class ASuperstringExpr
+       init init_asuperstringexpr (
+               n_exprs: Collection[Object], # Should be Collection[AExpr]
+               n_annotations: nullable AAnnotations
+       )
+       do
+               self.n_exprs.unsafe_add_all(n_exprs)
+               _n_annotations = n_annotations
+               if n_annotations != null then n_annotations.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if n_exprs.replace_child(old_child, new_child) then return
+               if _n_annotations == old_child then
+                       n_annotations = new_child.as(nullable AAnnotations)
+                       return
+               end
+       end
+
+       redef fun n_annotations=(node)
+       do
+               _n_annotations = node
+               if node != null then node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               n_exprs.visit_all(v)
+               v.enter_visit(_n_annotations)
+       end
+end
+redef class ALambdaExpr
+       init init_alambdaexpr (
+               n_kwmeth: nullable TKwmeth,
+               n_signature: nullable ASignature,
+               n_kwdo: nullable TKwdo,
+               n_expr: nullable AExpr
+       )
+       do
+               _n_kwmeth = n_kwmeth.as(not null)
+               n_kwmeth.parent = self
+               _n_signature = n_signature.as(not null)
+               n_signature.parent = self
+               _n_kwdo = n_kwdo.as(not null)
+               n_kwdo.parent = self
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwmeth == old_child then
+                       n_kwmeth = new_child.as(TKwmeth)
+                       return
+               end
+               if _n_signature == old_child then
+                       n_signature = new_child.as(ASignature)
+                       return
+               end
+               if _n_kwdo == old_child then
+                       n_kwdo = new_child.as(TKwdo)
+                       return
+               end
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+       end
+
+       redef fun n_kwmeth=(node)
+       do
+               _n_kwmeth = node
+               node.parent = self
+       end
+       redef fun n_signature=(node)
+       do
+               _n_signature = node
+               node.parent = self
+       end
+       redef fun n_kwdo=(node)
+       do
+               _n_kwdo = node
+               node.parent = self
+       end
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwmeth)
+               v.enter_visit(_n_signature)
+               v.enter_visit(_n_kwdo)
+               v.enter_visit(_n_expr)
+       end
+end
+redef class AParExpr
+       init init_aparexpr (
+               n_opar: nullable TOpar,
+               n_expr: nullable AExpr,
+               n_cpar: nullable TCpar,
+               n_annotations: nullable AAnnotations
+       )
+       do
+               _n_opar = n_opar.as(not null)
+               n_opar.parent = self
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_cpar = n_cpar.as(not null)
+               n_cpar.parent = self
+               _n_annotations = n_annotations
+               if n_annotations != null then n_annotations.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_opar == old_child then
+                       n_opar = new_child.as(TOpar)
+                       return
+               end
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_cpar == old_child then
+                       n_cpar = new_child.as(TCpar)
+                       return
+               end
+               if _n_annotations == old_child then
+                       n_annotations = new_child.as(nullable AAnnotations)
+                       return
+               end
+       end
+
+       redef fun n_opar=(node)
+       do
+               _n_opar = node
+               node.parent = self
+       end
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
+       end
+       redef fun n_cpar=(node)
+       do
+               _n_cpar = node
+               node.parent = self
+       end
+       redef fun n_annotations=(node)
+       do
+               _n_annotations = node
+               if node != null then node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_opar)
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_cpar)
+               v.enter_visit(_n_annotations)
+       end
+end
+redef class AAsCastExpr
+       init init_aascastexpr (
+               n_expr: nullable AExpr,
+               n_kwas: nullable TKwas,
+               n_opar: nullable TOpar,
+               n_type: nullable AType,
+               n_cpar: nullable TCpar
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_kwas = n_kwas.as(not null)
+               n_kwas.parent = self
+               _n_opar = n_opar
+               if n_opar != null then n_opar.parent = self
+               _n_type = n_type.as(not null)
+               n_type.parent = self
+               _n_cpar = n_cpar
+               if n_cpar != null then n_cpar.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_kwas == old_child then
+                       n_kwas = new_child.as(TKwas)
+                       return
+               end
+               if _n_opar == old_child then
+                       n_opar = new_child.as(nullable TOpar)
+                       return
+               end
+               if _n_type == old_child then
+                       n_type = new_child.as(AType)
+                       return
+               end
+               if _n_cpar == old_child then
+                       n_cpar = new_child.as(nullable TCpar)
+                       return
+               end
+       end
+
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
+       end
+       redef fun n_kwas=(node)
+       do
+               _n_kwas = node
+               node.parent = self
+       end
+       redef fun n_opar=(node)
+       do
+               _n_opar = node
+               if node != null then node.parent = self
+       end
+       redef fun n_type=(node)
+       do
+               _n_type = node
+               node.parent = self
+       end
+       redef fun n_cpar=(node)
+       do
+               _n_cpar = node
+               if node != null then node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_kwas)
+               v.enter_visit(_n_opar)
+               v.enter_visit(_n_type)
+               v.enter_visit(_n_cpar)
+       end
+end
+redef class AAsNotnullExpr
+       init init_aasnotnullexpr (
+               n_expr: nullable AExpr,
+               n_kwas: nullable TKwas,
+               n_opar: nullable TOpar,
+               n_kwnot: nullable TKwnot,
+               n_kwnull: nullable TKwnull,
+               n_cpar: nullable TCpar
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_kwas = n_kwas.as(not null)
+               n_kwas.parent = self
+               _n_opar = n_opar
+               if n_opar != null then n_opar.parent = self
+               _n_kwnot = n_kwnot.as(not null)
+               n_kwnot.parent = self
+               _n_kwnull = n_kwnull.as(not null)
+               n_kwnull.parent = self
+               _n_cpar = n_cpar
+               if n_cpar != null then n_cpar.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_kwas == old_child then
+                       n_kwas = new_child.as(TKwas)
+                       return
+               end
+               if _n_opar == old_child then
+                       n_opar = new_child.as(nullable TOpar)
+                       return
+               end
+               if _n_kwnot == old_child then
+                       n_kwnot = new_child.as(TKwnot)
+                       return
+               end
+               if _n_kwnull == old_child then
+                       n_kwnull = new_child.as(TKwnull)
+                       return
+               end
+               if _n_cpar == old_child then
+                       n_cpar = new_child.as(nullable TCpar)
+                       return
+               end
+       end
+
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
+       end
+       redef fun n_kwas=(node)
+       do
+               _n_kwas = node
+               node.parent = self
+       end
+       redef fun n_opar=(node)
+       do
+               _n_opar = node
+               if node != null then node.parent = self
+       end
+       redef fun n_kwnot=(node)
+       do
+               _n_kwnot = node
+               node.parent = self
+       end
+       redef fun n_kwnull=(node)
+       do
+               _n_kwnull = node
+               node.parent = self
+       end
+       redef fun n_cpar=(node)
+       do
+               _n_cpar = node
+               if node != null then node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_kwas)
+               v.enter_visit(_n_opar)
+               v.enter_visit(_n_kwnot)
+               v.enter_visit(_n_kwnull)
+               v.enter_visit(_n_cpar)
+       end
+end
+redef class AIssetAttrExpr
+       init init_aissetattrexpr (
+               n_kwisset: nullable TKwisset,
+               n_expr: nullable AExpr,
+               n_id: nullable TAttrid
+       )
+       do
+               _n_kwisset = n_kwisset.as(not null)
+               n_kwisset.parent = self
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_id = n_id.as(not null)
+               n_id.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwisset == old_child then
+                       n_kwisset = new_child.as(TKwisset)
+                       return
+               end
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_id == old_child then
+                       n_id = new_child.as(TAttrid)
+                       return
+               end
+       end
+
+       redef fun n_kwisset=(node)
+       do
+               _n_kwisset = node
+               node.parent = self
+       end
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
+       end
+       redef fun n_id=(node)
+       do
+               _n_id = node
+               node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwisset)
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_id)
+       end
+end
+redef class ADebugTypeExpr
+       init init_adebugtypeexpr (
+               n_kwdebug: nullable TKwdebug,
+               n_kwtype: nullable TKwtype,
+               n_expr: nullable AExpr,
+               n_type: nullable AType
+       )
+       do
+               _n_kwdebug = n_kwdebug.as(not null)
+               n_kwdebug.parent = self
+               _n_kwtype = n_kwtype.as(not null)
+               n_kwtype.parent = self
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_type = n_type.as(not null)
+               n_type.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwdebug == old_child then
+                       n_kwdebug = new_child.as(TKwdebug)
+                       return
+               end
+               if _n_kwtype == old_child then
+                       n_kwtype = new_child.as(TKwtype)
+                       return
+               end
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_type == old_child then
+                       n_type = new_child.as(AType)
+                       return
+               end
+       end
+
+       redef fun n_kwdebug=(node)
+       do
+               _n_kwdebug = node
+               node.parent = self
+       end
+       redef fun n_kwtype=(node)
+       do
+               _n_kwtype = node
+               node.parent = self
+       end
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
+       end
+       redef fun n_type=(node)
+       do
+               _n_type = node
+               node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwdebug)
+               v.enter_visit(_n_kwtype)
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_type)
+       end
+end
+redef class AVarargExpr
+       init init_avarargexpr (
+               n_expr: nullable AExpr,
+               n_dotdotdot: nullable TDotdotdot
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_dotdotdot = n_dotdotdot.as(not null)
+               n_dotdotdot.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_dotdotdot == old_child then
+                       n_dotdotdot = new_child.as(TDotdotdot)
+                       return
+               end
+       end
+
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
+       end
+       redef fun n_dotdotdot=(node)
+       do
+               _n_dotdotdot = node
+               node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_dotdotdot)
+       end
+end
+redef class ANamedargExpr
+       init init_anamedargexpr (
+               n_id: nullable TId,
+               n_assign: nullable TAssign,
+               n_expr: nullable AExpr
+       )
+       do
+               _n_id = n_id.as(not null)
+               n_id.parent = self
+               _n_assign = n_assign.as(not null)
+               n_assign.parent = self
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_id == old_child then
+                       n_id = new_child.as(TId)
+                       return
+               end
+               if _n_assign == old_child then
+                       n_assign = new_child.as(TAssign)
+                       return
+               end
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_id == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TId
-                _n_id = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_id=(node)
+       do
+               _n_id = node
+               node.parent = self
        end
-        if _n_assign_op == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AAssignOp
-                _n_assign_op = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_assign=(node)
+       do
+               _n_assign = node
+               node.parent = self
        end
-        if _n_value == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_value = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_id)
-        v.enter_visit(_n_assign_op)
-        v.enter_visit(_n_value)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_id)
+               v.enter_visit(_n_assign)
+               v.enter_visit(_n_expr)
+       end
 end
-redef class ARangeExpr
-    private init empty_init do end
+redef class ASafeExpr
+       init init_asafeexpr (
+               n_expr: nullable AExpr,
+               n_quest: nullable TQuest
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_quest = n_quest.as(not null)
+               n_quest.parent = self
+       end
 
-    init init_arangeexpr (
-            n_expr: nullable AExpr,
-            n_expr2: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_expr2 = n_expr2.as(not null)
-       n_expr2.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_quest == old_child then
+                       n_quest = new_child.as(TQuest)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_expr2 == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr2 = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_quest=(node)
+       do
+               _n_quest = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_expr2)
-    end
-end
-redef class ACrangeExpr
-    private init empty_init do end
 
-    init init_acrangeexpr (
-            n_expr: nullable AExpr,
-            n_expr2: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_expr2 = n_expr2.as(not null)
-       n_expr2.parent = self
-    end
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_quest)
+       end
+end
+redef class ATypeExpr
+       init init_atypeexpr (
+               n_type: nullable AType
+       )
+       do
+               _n_type = n_type.as(not null)
+               n_type.parent = self
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_type == old_child then
+                       n_type = new_child.as(AType)
+                       return
+               end
        end
-        if _n_expr2 == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr2 = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun n_type=(node)
+       do
+               _n_type = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_expr2)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_type)
+       end
 end
-redef class AOrangeExpr
-    private init empty_init do end
+redef class AMethidExpr
+       init init_amethidexpr (
+               n_expr: nullable AExpr,
+               n_id: nullable AMethid
+       )
+       do
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+               _n_id = n_id.as(not null)
+               n_id.parent = self
+       end
 
-    init init_aorangeexpr (
-            n_expr: nullable AExpr,
-            n_expr2: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_expr2 = n_expr2.as(not null)
-       n_expr2.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
+               if _n_id == old_child then
+                       n_id = new_child.as(AMethid)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-        if _n_expr2 == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr2 = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_id=(node)
+       do
+               _n_id = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_expr2)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_expr)
+               v.enter_visit(_n_id)
+       end
 end
-redef class AArrayExpr
-    private init empty_init do end
+redef class AAtExpr
+       init init_aatexpr (
+               n_annotations: nullable AAnnotations
+       )
+       do
+               _n_annotations = n_annotations.as(not null)
+               n_annotations.parent = self
+       end
 
-    init init_aarrayexpr (
-            n_exprs: Collection[Object] # Should be Collection[AExpr]
-    )
-    do
-        empty_init
-       for n in n_exprs do
-               assert n isa AExpr
-               _n_exprs.add(n)
-               n.parent = self
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_annotations == old_child then
+                       n_annotations = new_child.as(AAnnotations)
+                       return
+               end
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        for i in [0.._n_exprs.length[ do
-            if _n_exprs[i] == old_child then
-                if new_child != null then
-                   assert new_child isa AExpr
-                    _n_exprs[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_exprs.remove_at(i)
-                end
-                return
-            end
-        end
-    end
+       redef fun n_annotations=(node)
+       do
+               _n_annotations = node
+               node.parent = self
+       end
 
-    redef fun visit_all(v: Visitor)
-    do
-            for n in _n_exprs do
-                v.enter_visit(n)
-           end
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_annotations)
+       end
 end
-redef class ASelfExpr
-    private init empty_init do end
+redef class AManyExpr
+       init init_amanyexpr (
+               n_exprs: Collection[Object] # Should be Collection[AExpr]
+       )
+       do
+               self.n_exprs.unsafe_add_all(n_exprs)
+       end
 
-    init init_aselfexpr (
-            n_kwself: nullable TKwself
-    )
-    do
-        empty_init
-        _n_kwself = n_kwself.as(not null)
-       n_kwself.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if n_exprs.replace_child(old_child, new_child) then return
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwself == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwself
-                _n_kwself = new_child
-           else
-               abort
-            end
-            return
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               n_exprs.visit_all(v)
+       end
+end
+redef class AListExprs
+       init init_alistexprs (
+               n_exprs: Collection[Object] # Should be Collection[AExpr]
+       )
+       do
+               self.n_exprs.unsafe_add_all(n_exprs)
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwself)
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if n_exprs.replace_child(old_child, new_child) then return
+       end
+
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               n_exprs.visit_all(v)
+       end
 end
-redef class AImplicitSelfExpr
-    private init empty_init do end
+redef class AParExprs
+       init init_aparexprs (
+               n_opar: nullable TOpar,
+               n_exprs: Collection[Object], # Should be Collection[AExpr]
+               n_cpar: nullable TCpar
+       )
+       do
+               _n_opar = n_opar.as(not null)
+               n_opar.parent = self
+               self.n_exprs.unsafe_add_all(n_exprs)
+               _n_cpar = n_cpar.as(not null)
+               n_cpar.parent = self
+       end
 
-    init init_aimplicitselfexpr
-    do
-        empty_init
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_opar == old_child then
+                       n_opar = new_child.as(TOpar)
+                       return
+               end
+               if n_exprs.replace_child(old_child, new_child) then return
+               if _n_cpar == old_child then
+                       n_cpar = new_child.as(TCpar)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-    end
+       redef fun n_opar=(node)
+       do
+               _n_opar = node
+               node.parent = self
+       end
+       redef fun n_cpar=(node)
+       do
+               _n_cpar = node
+               node.parent = self
+       end
 
-    redef fun visit_all(v: Visitor)
-    do
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_opar)
+               n_exprs.visit_all(v)
+               v.enter_visit(_n_cpar)
+       end
 end
-redef class ATrueExpr
-    private init empty_init do end
+redef class ABraExprs
+       init init_abraexprs (
+               n_obra: nullable TObra,
+               n_exprs: Collection[Object], # Should be Collection[AExpr]
+               n_cbra: nullable TCbra
+       )
+       do
+               _n_obra = n_obra.as(not null)
+               n_obra.parent = self
+               self.n_exprs.unsafe_add_all(n_exprs)
+               _n_cbra = n_cbra.as(not null)
+               n_cbra.parent = self
+       end
 
-    init init_atrueexpr (
-            n_kwtrue: nullable TKwtrue
-    )
-    do
-        empty_init
-        _n_kwtrue = n_kwtrue.as(not null)
-       n_kwtrue.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_obra == old_child then
+                       n_obra = new_child.as(TObra)
+                       return
+               end
+               if n_exprs.replace_child(old_child, new_child) then return
+               if _n_cbra == old_child then
+                       n_cbra = new_child.as(TCbra)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwtrue == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwtrue
-                _n_kwtrue = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_obra=(node)
+       do
+               _n_obra = node
+               node.parent = self
+       end
+       redef fun n_cbra=(node)
+       do
+               _n_cbra = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwtrue)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_obra)
+               n_exprs.visit_all(v)
+               v.enter_visit(_n_cbra)
+       end
 end
-redef class AFalseExpr
-    private init empty_init do end
+redef class APlusAssignOp
+       init init_aplusassignop (
+               n_op: nullable TPluseq
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+       end
 
-    init init_afalseexpr (
-            n_kwfalse: nullable TKwfalse
-    )
-    do
-        empty_init
-        _n_kwfalse = n_kwfalse.as(not null)
-       n_kwfalse.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TPluseq)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwfalse == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwfalse
-                _n_kwfalse = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwfalse)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+       end
 end
-redef class ANullExpr
-    private init empty_init do end
+redef class AMinusAssignOp
+       init init_aminusassignop (
+               n_op: nullable TMinuseq
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+       end
 
-    init init_anullexpr (
-            n_kwnull: nullable TKwnull
-    )
-    do
-        empty_init
-        _n_kwnull = n_kwnull.as(not null)
-       n_kwnull.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TMinuseq)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwnull == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwnull
-                _n_kwnull = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwnull)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+       end
 end
-redef class AIntExpr
-    private init empty_init do end
+redef class AStarAssignOp
+       init init_astarassignop (
+               n_op: nullable TStareq
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+       end
 
-    init init_aintexpr (
-            n_number: nullable TNumber
-    )
-    do
-        empty_init
-        _n_number = n_number.as(not null)
-       n_number.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TStareq)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_number == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TNumber
-                _n_number = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_number)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+       end
 end
-redef class AFloatExpr
-    private init empty_init do end
+redef class ASlashAssignOp
+       init init_aslashassignop (
+               n_op: nullable TSlasheq
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+       end
 
-    init init_afloatexpr (
-            n_float: nullable TFloat
-    )
-    do
-        empty_init
-        _n_float = n_float.as(not null)
-       n_float.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TSlasheq)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_float == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TFloat
-                _n_float = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_float)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+       end
 end
-redef class ACharExpr
-    private init empty_init do end
+redef class APercentAssignOp
+       init init_apercentassignop (
+               n_op: nullable TPercenteq
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+       end
 
-    init init_acharexpr (
-            n_char: nullable TChar
-    )
-    do
-        empty_init
-        _n_char = n_char.as(not null)
-       n_char.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TPercenteq)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_char == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TChar
-                _n_char = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_char)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+       end
 end
-redef class AStringExpr
-    private init empty_init do end
+redef class AStarstarAssignOp
+       init init_astarstarassignop (
+               n_op: nullable TStarstareq
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+       end
 
-    init init_astringexpr (
-            n_string: nullable TString
-    )
-    do
-        empty_init
-        _n_string = n_string.as(not null)
-       n_string.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TStarstareq)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_string == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TString
-                _n_string = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_string)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+       end
 end
-redef class AStartStringExpr
-    private init empty_init do end
+redef class APipeAssignOp
+       init init_apipeassignop (
+               n_op: nullable TPipeeq
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+       end
 
-    init init_astartstringexpr (
-            n_string: nullable TStartString
-    )
-    do
-        empty_init
-        _n_string = n_string.as(not null)
-       n_string.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TPipeeq)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_string == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TStartString
-                _n_string = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_string)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+       end
 end
-redef class AMidStringExpr
-    private init empty_init do end
+redef class ACaretAssignOp
+       init init_acaretassignop (
+               n_op: nullable TCareteq
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+       end
 
-    init init_amidstringexpr (
-            n_string: nullable TMidString
-    )
-    do
-        empty_init
-        _n_string = n_string.as(not null)
-       n_string.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TCareteq)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_string == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TMidString
-                _n_string = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_string)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+       end
 end
-redef class AEndStringExpr
-    private init empty_init do end
+redef class AAmpAssignOp
+       init init_aampassignop (
+               n_op: nullable TAmpeq
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+       end
 
-    init init_aendstringexpr (
-            n_string: nullable TEndString
-    )
-    do
-        empty_init
-        _n_string = n_string.as(not null)
-       n_string.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TAmpeq)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_string == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TEndString
-                _n_string = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_string)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+       end
 end
-redef class ASuperstringExpr
-    private init empty_init do end
+redef class ALlAssignOp
+       init init_allassignop (
+               n_op: nullable TLleq
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+       end
 
-    init init_asuperstringexpr (
-            n_exprs: Collection[Object] # Should be Collection[AExpr]
-    )
-    do
-        empty_init
-       for n in n_exprs do
-               assert n isa AExpr
-               _n_exprs.add(n)
-               n.parent = self
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TLleq)
+                       return
+               end
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        for i in [0.._n_exprs.length[ do
-            if _n_exprs[i] == old_child then
-                if new_child != null then
-                   assert new_child isa AExpr
-                    _n_exprs[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_exprs.remove_at(i)
-                end
-                return
-            end
-        end
-    end
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
+       end
 
-    redef fun visit_all(v: Visitor)
-    do
-            for n in _n_exprs do
-                v.enter_visit(n)
-           end
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+       end
 end
-redef class AParExpr
-    private init empty_init do end
+redef class AGgAssignOp
+       init init_aggassignop (
+               n_op: nullable TGgeq
+       )
+       do
+               _n_op = n_op.as(not null)
+               n_op.parent = self
+       end
 
-    init init_aparexpr (
-            n_expr: nullable AExpr
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_op == old_child then
+                       n_op = new_child.as(TGgeq)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_op=(node)
+       do
+               _n_op = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-    end
-end
-redef class AAsCastExpr
-    private init empty_init do end
 
-    init init_aascastexpr (
-            n_expr: nullable AExpr,
-            n_kwas: nullable TKwas,
-            n_type: nullable AType
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_kwas = n_kwas.as(not null)
-       n_kwas.parent = self
-        _n_type = n_type.as(not null)
-       n_type.parent = self
-    end
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_op)
+       end
+end
+redef class AForGroup
+       init init_aforgroup (
+               n_ids: Collection[Object], # Should be Collection[TId]
+               n_kwin: nullable TKwin,
+               n_expr: nullable AExpr
+       )
+       do
+               self.n_ids.unsafe_add_all(n_ids)
+               _n_kwin = n_kwin.as(not null)
+               n_kwin.parent = self
+               _n_expr = n_expr.as(not null)
+               n_expr.parent = self
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if n_ids.replace_child(old_child, new_child) then return
+               if _n_kwin == old_child then
+                       n_kwin = new_child.as(TKwin)
+                       return
+               end
+               if _n_expr == old_child then
+                       n_expr = new_child.as(AExpr)
+                       return
+               end
        end
-        if _n_kwas == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwas
-                _n_kwas = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun n_kwin=(node)
+       do
+               _n_kwin = node
+               node.parent = self
        end
-        if _n_type == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AType
-                _n_type = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_expr=(node)
+       do
+               _n_expr = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_kwas)
-        v.enter_visit(_n_type)
-    end
-end
-redef class AAsNotnullExpr
-    private init empty_init do end
-
-    init init_aasnotnullexpr (
-            n_expr: nullable AExpr,
-            n_kwas: nullable TKwas,
-            n_kwnot: nullable TKwnot,
-            n_kwnull: nullable TKwnull
-    )
-    do
-        empty_init
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_kwas = n_kwas.as(not null)
-       n_kwas.parent = self
-        _n_kwnot = n_kwnot.as(not null)
-       n_kwnot.parent = self
-        _n_kwnull = n_kwnull.as(not null)
-       n_kwnull.parent = self
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+       redef fun visit_all(v: Visitor)
+       do
+               n_ids.visit_all(v)
+               v.enter_visit(_n_kwin)
+               v.enter_visit(_n_expr)
        end
-        if _n_kwas == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwas
-                _n_kwas = new_child
-           else
-               abort
-            end
-            return
+end
+redef class AModuleName
+       init init_amodulename (
+               n_quad: nullable TQuad,
+               n_path: Collection[Object], # Should be Collection[TId]
+               n_id: nullable TId
+       )
+       do
+               _n_quad = n_quad
+               if n_quad != null then n_quad.parent = self
+               self.n_path.unsafe_add_all(n_path)
+               _n_id = n_id.as(not null)
+               n_id.parent = self
        end
-        if _n_kwnot == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwnot
-                _n_kwnot = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_quad == old_child then
+                       n_quad = new_child.as(nullable TQuad)
+                       return
+               end
+               if n_path.replace_child(old_child, new_child) then return
+               if _n_id == old_child then
+                       n_id = new_child.as(TId)
+                       return
+               end
        end
-        if _n_kwnull == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwnull
-                _n_kwnull = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun n_quad=(node)
+       do
+               _n_quad = node
+               if node != null then node.parent = self
+       end
+       redef fun n_id=(node)
+       do
+               _n_id = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_kwas)
-        v.enter_visit(_n_kwnot)
-        v.enter_visit(_n_kwnull)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_quad)
+               n_path.visit_all(v)
+               v.enter_visit(_n_id)
+       end
 end
-redef class AIssetAttrExpr
-    private init empty_init do end
+redef class AExternCalls
+       init init_aexterncalls (
+               n_kwimport: nullable TKwimport,
+               n_extern_calls: Collection[Object] # Should be Collection[AExternCall]
+       )
+       do
+               _n_kwimport = n_kwimport.as(not null)
+               n_kwimport.parent = self
+               self.n_extern_calls.unsafe_add_all(n_extern_calls)
+       end
 
-    init init_aissetattrexpr (
-            n_kwisset: nullable TKwisset,
-            n_expr: nullable AExpr,
-            n_id: nullable TAttrid
-    )
-    do
-        empty_init
-        _n_kwisset = n_kwisset.as(not null)
-       n_kwisset.parent = self
-        _n_expr = n_expr.as(not null)
-       n_expr.parent = self
-        _n_id = n_id.as(not null)
-       n_id.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwimport == old_child then
+                       n_kwimport = new_child.as(TKwimport)
+                       return
+               end
+               if n_extern_calls.replace_child(old_child, new_child) then return
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwisset == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwisset
-                _n_kwisset = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwimport=(node)
+       do
+               _n_kwimport = node
+               node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwimport)
+               n_extern_calls.visit_all(v)
        end
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               abort
-            end
-            return
+end
+redef class AExternCall
+       init init_aexterncall
+       do
        end
-        if _n_id == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TAttrid
-                _n_id = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwisset)
-        v.enter_visit(_n_expr)
-        v.enter_visit(_n_id)
-    end
-end
-redef class APlusAssignOp
-    private init empty_init do end
 
-    init init_aplusassignop (
-            n_pluseq: nullable TPluseq
-    )
-    do
-        empty_init
-        _n_pluseq = n_pluseq.as(not null)
-       n_pluseq.parent = self
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_pluseq == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TPluseq
-                _n_pluseq = new_child
-           else
-               abort
-            end
-            return
+       redef fun visit_all(v: Visitor)
+       do
        end
-    end
-
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_pluseq)
-    end
 end
-redef class AMinusAssignOp
-    private init empty_init do end
+redef class ASuperExternCall
+       init init_asuperexterncall (
+               n_kwsuper: nullable TKwsuper
+       )
+       do
+               _n_kwsuper = n_kwsuper.as(not null)
+               n_kwsuper.parent = self
+       end
 
-    init init_aminusassignop (
-            n_minuseq: nullable TMinuseq
-    )
-    do
-        empty_init
-        _n_minuseq = n_minuseq.as(not null)
-       n_minuseq.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwsuper == old_child then
+                       n_kwsuper = new_child.as(TKwsuper)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_minuseq == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TMinuseq
-                _n_minuseq = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwsuper=(node)
+       do
+               _n_kwsuper = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_minuseq)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwsuper)
+       end
 end
-redef class AClosureDef
-    private init empty_init do end
-
-    init init_aclosuredef (
-            n_bang: nullable TBang,
-            n_id: nullable AClosureId,
-            n_ids: Collection[Object], # Should be Collection[TId]
-            n_kwdo: nullable TKwdo,
-            n_expr: nullable AExpr,
-            n_label: nullable ALabel
-    )
-    do
-        empty_init
-        _n_bang = n_bang.as(not null)
-       n_bang.parent = self
-        _n_id = n_id.as(not null)
-       n_id.parent = self
-       for n in n_ids do
-               assert n isa TId
-               _n_ids.add(n)
-               n.parent = self
-       end
-        _n_kwdo = n_kwdo
-       if n_kwdo != null then
-               n_kwdo.parent = self
+redef class ALocalPropExternCall
+       init init_alocalpropexterncall (
+               n_methid: nullable AMethid
+       )
+       do
+               _n_methid = n_methid.as(not null)
+               n_methid.parent = self
        end
-        _n_expr = n_expr
-       if n_expr != null then
-               n_expr.parent = self
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_methid == old_child then
+                       n_methid = new_child.as(AMethid)
+                       return
+               end
        end
-        _n_label = n_label
-       if n_label != null then
-               n_label.parent = self
+
+       redef fun n_methid=(node)
+       do
+               _n_methid = node
+               node.parent = self
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_bang == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TBang
-                _n_bang = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_methid)
        end
-        if _n_id == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AClosureId
-                _n_id = new_child
-           else
-               abort
-            end
-            return
+end
+redef class AFullPropExternCall
+       init init_afullpropexterncall (
+               n_type: nullable AType,
+               n_dot: nullable TDot,
+               n_methid: nullable AMethid
+       )
+       do
+               _n_type = n_type.as(not null)
+               n_type.parent = self
+               _n_dot = n_dot
+               if n_dot != null then n_dot.parent = self
+               _n_methid = n_methid.as(not null)
+               n_methid.parent = self
        end
-        for i in [0.._n_ids.length[ do
-            if _n_ids[i] == old_child then
-                if new_child != null then
-                   assert new_child isa TId
-                    _n_ids[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_ids.remove_at(i)
-                end
-                return
-            end
-        end
-        if _n_kwdo == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwdo
-                _n_kwdo = new_child
-           else
-               _n_kwdo = null
-            end
-            return
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_type == old_child then
+                       n_type = new_child.as(AType)
+                       return
+               end
+               if _n_dot == old_child then
+                       n_dot = new_child.as(nullable TDot)
+                       return
+               end
+               if _n_methid == old_child then
+                       n_methid = new_child.as(AMethid)
+                       return
+               end
        end
-        if _n_expr == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AExpr
-                _n_expr = new_child
-           else
-               _n_expr = null
-            end
-            return
+
+       redef fun n_type=(node)
+       do
+               _n_type = node
+               node.parent = self
        end
-        if _n_label == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa ALabel
-                _n_label = new_child
-           else
-               _n_label = null
-            end
-            return
+       redef fun n_dot=(node)
+       do
+               _n_dot = node
+               if node != null then node.parent = self
+       end
+       redef fun n_methid=(node)
+       do
+               _n_methid = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_bang)
-        v.enter_visit(_n_id)
-            for n in _n_ids do
-                v.enter_visit(n)
-           end
-        if _n_kwdo != null then
-            v.enter_visit(_n_kwdo.as(not null))
-        end
-        if _n_expr != null then
-            v.enter_visit(_n_expr.as(not null))
-        end
-        if _n_label != null then
-            v.enter_visit(_n_label.as(not null))
-        end
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_type)
+               v.enter_visit(_n_dot)
+               v.enter_visit(_n_methid)
+       end
 end
-redef class ASimpleClosureId
-    private init empty_init do end
+redef class AInitPropExternCall
+       init init_ainitpropexterncall (
+               n_type: nullable AType
+       )
+       do
+               _n_type = n_type.as(not null)
+               n_type.parent = self
+       end
 
-    init init_asimpleclosureid (
-            n_id: nullable TId
-    )
-    do
-        empty_init
-        _n_id = n_id.as(not null)
-       n_id.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_type == old_child then
+                       n_type = new_child.as(AType)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_id == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TId
-                _n_id = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_type=(node)
+       do
+               _n_type = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_id)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_type)
+       end
 end
-redef class ABreakClosureId
-    private init empty_init do end
+redef class ACastAsExternCall
+       init init_acastasexterncall (
+               n_from_type: nullable AType,
+               n_dot: nullable TDot,
+               n_kwas: nullable TKwas,
+               n_to_type: nullable AType
+       )
+       do
+               _n_from_type = n_from_type.as(not null)
+               n_from_type.parent = self
+               _n_dot = n_dot
+               if n_dot != null then n_dot.parent = self
+               _n_kwas = n_kwas.as(not null)
+               n_kwas.parent = self
+               _n_to_type = n_to_type.as(not null)
+               n_to_type.parent = self
+       end
 
-    init init_abreakclosureid (
-            n_kwbreak: nullable TKwbreak
-    )
-    do
-        empty_init
-        _n_kwbreak = n_kwbreak.as(not null)
-       n_kwbreak.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_from_type == old_child then
+                       n_from_type = new_child.as(AType)
+                       return
+               end
+               if _n_dot == old_child then
+                       n_dot = new_child.as(nullable TDot)
+                       return
+               end
+               if _n_kwas == old_child then
+                       n_kwas = new_child.as(TKwas)
+                       return
+               end
+               if _n_to_type == old_child then
+                       n_to_type = new_child.as(AType)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwbreak == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwbreak
-                _n_kwbreak = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_from_type=(node)
+       do
+               _n_from_type = node
+               node.parent = self
+       end
+       redef fun n_dot=(node)
+       do
+               _n_dot = node
+               if node != null then node.parent = self
+       end
+       redef fun n_kwas=(node)
+       do
+               _n_kwas = node
+               node.parent = self
+       end
+       redef fun n_to_type=(node)
+       do
+               _n_to_type = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwbreak)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_from_type)
+               v.enter_visit(_n_dot)
+               v.enter_visit(_n_kwas)
+               v.enter_visit(_n_to_type)
+       end
 end
-redef class AModuleName
-    private init empty_init do end
+redef class AAsNullableExternCall
+       init init_aasnullableexterncall (
+               n_type: nullable AType,
+               n_kwas: nullable TKwas,
+               n_kwnullable: nullable TKwnullable
+       )
+       do
+               _n_type = n_type.as(not null)
+               n_type.parent = self
+               _n_kwas = n_kwas.as(not null)
+               n_kwas.parent = self
+               _n_kwnullable = n_kwnullable.as(not null)
+               n_kwnullable.parent = self
+       end
 
-    init init_amodulename (
-            n_quad: nullable TQuad,
-            n_path: Collection[Object], # Should be Collection[TId]
-            n_id: nullable TId
-    )
-    do
-        empty_init
-        _n_quad = n_quad
-       if n_quad != null then
-               n_quad.parent = self
-       end
-       for n in n_path do
-               assert n isa TId
-               _n_path.add(n)
-               n.parent = self
-       end
-        _n_id = n_id.as(not null)
-       n_id.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_type == old_child then
+                       n_type = new_child.as(AType)
+                       return
+               end
+               if _n_kwas == old_child then
+                       n_kwas = new_child.as(TKwas)
+                       return
+               end
+               if _n_kwnullable == old_child then
+                       n_kwnullable = new_child.as(TKwnullable)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_quad == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TQuad
-                _n_quad = new_child
-           else
-               _n_quad = null
-            end
-            return
+       redef fun n_type=(node)
+       do
+               _n_type = node
+               node.parent = self
        end
-        for i in [0.._n_path.length[ do
-            if _n_path[i] == old_child then
-                if new_child != null then
-                   assert new_child isa TId
-                    _n_path[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_path.remove_at(i)
-                end
-                return
-            end
-        end
-        if _n_id == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TId
-                _n_id = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwas=(node)
+       do
+               _n_kwas = node
+               node.parent = self
+       end
+       redef fun n_kwnullable=(node)
+       do
+               _n_kwnullable = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        if _n_quad != null then
-            v.enter_visit(_n_quad.as(not null))
-        end
-            for n in _n_path do
-                v.enter_visit(n)
-           end
-        v.enter_visit(_n_id)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_type)
+               v.enter_visit(_n_kwas)
+               v.enter_visit(_n_kwnullable)
+       end
 end
-redef class AExternCalls
-    private init empty_init do end
+redef class AAsNotNullableExternCall
+       init init_aasnotnullableexterncall (
+               n_type: nullable AType,
+               n_kwas: nullable TKwas,
+               n_kwnot: nullable TKwnot,
+               n_kwnullable: nullable TKwnullable
+       )
+       do
+               _n_type = n_type.as(not null)
+               n_type.parent = self
+               _n_kwas = n_kwas.as(not null)
+               n_kwas.parent = self
+               _n_kwnot = n_kwnot.as(not null)
+               n_kwnot.parent = self
+               _n_kwnullable = n_kwnullable.as(not null)
+               n_kwnullable.parent = self
+       end
 
-    init init_aexterncalls (
-            n_kwimport: nullable TKwimport,
-            n_extern_calls: Collection[Object] # Should be Collection[AExternCall]
-    )
-    do
-        empty_init
-        _n_kwimport = n_kwimport.as(not null)
-       n_kwimport.parent = self
-       for n in n_extern_calls do
-               assert n isa AExternCall
-               _n_extern_calls.add(n)
-               n.parent = self
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_type == old_child then
+                       n_type = new_child.as(AType)
+                       return
+               end
+               if _n_kwas == old_child then
+                       n_kwas = new_child.as(TKwas)
+                       return
+               end
+               if _n_kwnot == old_child then
+                       n_kwnot = new_child.as(TKwnot)
+                       return
+               end
+               if _n_kwnullable == old_child then
+                       n_kwnullable = new_child.as(TKwnullable)
+                       return
+               end
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwimport == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwimport
-                _n_kwimport = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_type=(node)
+       do
+               _n_type = node
+               node.parent = self
+       end
+       redef fun n_kwas=(node)
+       do
+               _n_kwas = node
+               node.parent = self
+       end
+       redef fun n_kwnot=(node)
+       do
+               _n_kwnot = node
+               node.parent = self
+       end
+       redef fun n_kwnullable=(node)
+       do
+               _n_kwnullable = node
+               node.parent = self
        end
-        for i in [0.._n_extern_calls.length[ do
-            if _n_extern_calls[i] == old_child then
-                if new_child != null then
-                   assert new_child isa AExternCall
-                    _n_extern_calls[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_extern_calls.remove_at(i)
-                end
-                return
-            end
-        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwimport)
-            for n in _n_extern_calls do
-                v.enter_visit(n)
-           end
-    end
-end
-redef class AExternCall
-    private init empty_init do end
 
-    init init_aexterncall
-    do
-        empty_init
-    end
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_type)
+               v.enter_visit(_n_kwas)
+               v.enter_visit(_n_kwnot)
+               v.enter_visit(_n_kwnullable)
+       end
+end
+redef class AInLanguage
+       init init_ainlanguage (
+               n_kwin: nullable TKwin,
+               n_string: nullable TString
+       )
+       do
+               _n_kwin = n_kwin.as(not null)
+               n_kwin.parent = self
+               _n_string = n_string.as(not null)
+               n_string.parent = self
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwin == old_child then
+                       n_kwin = new_child.as(TKwin)
+                       return
+               end
+               if _n_string == old_child then
+                       n_string = new_child.as(TString)
+                       return
+               end
+       end
 
-    redef fun visit_all(v: Visitor)
-    do
-    end
-end
-redef class ASuperExternCall
-    private init empty_init do end
+       redef fun n_kwin=(node)
+       do
+               _n_kwin = node
+               node.parent = self
+       end
+       redef fun n_string=(node)
+       do
+               _n_string = node
+               node.parent = self
+       end
 
-    init init_asuperexterncall (
-            n_kwsuper: nullable TKwsuper
-    )
-    do
-        empty_init
-        _n_kwsuper = n_kwsuper.as(not null)
-       n_kwsuper.parent = self
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_kwsuper == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwsuper
-                _n_kwsuper = new_child
-           else
-               abort
-            end
-            return
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwin)
+               v.enter_visit(_n_string)
        end
-    end
-
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_kwsuper)
-    end
 end
-redef class ALocalPropExternCall
-    private init empty_init do end
+redef class AExternCodeBlock
+       init init_aexterncodeblock (
+               n_in_language: nullable AInLanguage,
+               n_extern_code_segment: nullable TExternCodeSegment
+       )
+       do
+               _n_in_language = n_in_language
+               if n_in_language != null then n_in_language.parent = self
+               _n_extern_code_segment = n_extern_code_segment.as(not null)
+               n_extern_code_segment.parent = self
+       end
 
-    init init_alocalpropexterncall (
-            n_methid: nullable AMethid
-    )
-    do
-        empty_init
-        _n_methid = n_methid.as(not null)
-       n_methid.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_in_language == old_child then
+                       n_in_language = new_child.as(nullable AInLanguage)
+                       return
+               end
+               if _n_extern_code_segment == old_child then
+                       n_extern_code_segment = new_child.as(TExternCodeSegment)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_methid == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AMethid
-                _n_methid = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_in_language=(node)
+       do
+               _n_in_language = node
+               if node != null then node.parent = self
+       end
+       redef fun n_extern_code_segment=(node)
+       do
+               _n_extern_code_segment = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_methid)
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_in_language)
+               v.enter_visit(_n_extern_code_segment)
+       end
 end
-redef class AFullPropExternCall
-    private init empty_init do end
+redef class AQualified
+       init init_aqualified (
+               n_id: Collection[Object], # Should be Collection[TId]
+               n_classid: nullable TClassid
+       )
+       do
+               self.n_id.unsafe_add_all(n_id)
+               _n_classid = n_classid
+               if n_classid != null then n_classid.parent = self
+       end
 
-    init init_afullpropexterncall (
-            n_classid: nullable TClassid,
-            n_quad: nullable TQuad,
-            n_methid: nullable AMethid
-    )
-    do
-        empty_init
-        _n_classid = n_classid.as(not null)
-       n_classid.parent = self
-        _n_quad = n_quad
-       if n_quad != null then
-               n_quad.parent = self
-       end
-        _n_methid = n_methid.as(not null)
-       n_methid.parent = self
-    end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if n_id.replace_child(old_child, new_child) then return
+               if _n_classid == old_child then
+                       n_classid = new_child.as(nullable TClassid)
+                       return
+               end
+       end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_classid == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TClassid
-                _n_classid = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_classid=(node)
+       do
+               _n_classid = node
+               if node != null then node.parent = self
        end
-        if _n_quad == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TQuad
-                _n_quad = new_child
-           else
-               _n_quad = null
-            end
-            return
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               n_id.visit_all(v)
+               v.enter_visit(_n_classid)
        end
-        if _n_methid == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AMethid
-                _n_methid = new_child
-           else
-               abort
-            end
-            return
+end
+redef class ADoc
+       init init_adoc (
+               n_comment: Collection[Object] # Should be Collection[TComment]
+       )
+       do
+               self.n_comment.unsafe_add_all(n_comment)
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_classid)
-        if _n_quad != null then
-            v.enter_visit(_n_quad.as(not null))
-        end
-        v.enter_visit(_n_methid)
-    end
-end
-redef class AInitPropExternCall
-    private init empty_init do end
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if n_comment.replace_child(old_child, new_child) then return
+       end
 
-    init init_ainitpropexterncall (
-            n_classid: nullable TClassid
-    )
-    do
-        empty_init
-        _n_classid = n_classid.as(not null)
-       n_classid.parent = self
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_classid == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TClassid
-                _n_classid = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun visit_all(v: Visitor)
+       do
+               n_comment.visit_all(v)
+       end
+end
+redef class AAnnotations
+       init init_aannotations (
+               n_kwis: nullable TKwis,
+               n_at: nullable TAt,
+               n_opar: nullable TOpar,
+               n_items: Collection[Object], # Should be Collection[AAnnotation]
+               n_cpar: nullable TCpar,
+               n_kwend: nullable TKwend
+       )
+       do
+               _n_kwis = n_kwis
+               if n_kwis != null then n_kwis.parent = self
+               _n_at = n_at
+               if n_at != null then n_at.parent = self
+               _n_opar = n_opar
+               if n_opar != null then n_opar.parent = self
+               self.n_items.unsafe_add_all(n_items)
+               _n_cpar = n_cpar
+               if n_cpar != null then n_cpar.parent = self
+               _n_kwend = n_kwend
+               if n_kwend != null then n_kwend.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_kwis == old_child then
+                       n_kwis = new_child.as(nullable TKwis)
+                       return
+               end
+               if _n_at == old_child then
+                       n_at = new_child.as(nullable TAt)
+                       return
+               end
+               if _n_opar == old_child then
+                       n_opar = new_child.as(nullable TOpar)
+                       return
+               end
+               if n_items.replace_child(old_child, new_child) then return
+               if _n_cpar == old_child then
+                       n_cpar = new_child.as(nullable TCpar)
+                       return
+               end
+               if _n_kwend == old_child then
+                       n_kwend = new_child.as(nullable TKwend)
+                       return
+               end
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_classid)
-    end
-end
-redef class ACastAsExternCall
-    private init empty_init do end
+       redef fun n_kwis=(node)
+       do
+               _n_kwis = node
+               if node != null then node.parent = self
+       end
+       redef fun n_at=(node)
+       do
+               _n_at = node
+               if node != null then node.parent = self
+       end
+       redef fun n_opar=(node)
+       do
+               _n_opar = node
+               if node != null then node.parent = self
+       end
+       redef fun n_cpar=(node)
+       do
+               _n_cpar = node
+               if node != null then node.parent = self
+       end
+       redef fun n_kwend=(node)
+       do
+               _n_kwend = node
+               if node != null then node.parent = self
+       end
 
-    init init_acastasexterncall (
-            n_from_type: nullable AType,
-            n_kwas: nullable TKwas,
-            n_to_type: nullable AType
-    )
-    do
-        empty_init
-        _n_from_type = n_from_type.as(not null)
-       n_from_type.parent = self
-        _n_kwas = n_kwas.as(not null)
-       n_kwas.parent = self
-        _n_to_type = n_to_type.as(not null)
-       n_to_type.parent = self
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_from_type == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AType
-                _n_from_type = new_child
-           else
-               abort
-            end
-            return
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_kwis)
+               v.enter_visit(_n_at)
+               v.enter_visit(_n_opar)
+               n_items.visit_all(v)
+               v.enter_visit(_n_cpar)
+               v.enter_visit(_n_kwend)
+       end
+end
+redef class AAnnotation
+       init init_aannotation (
+               n_doc: nullable ADoc,
+               n_kwredef: nullable TKwredef,
+               n_visibility: nullable AVisibility,
+               n_atid: nullable AAtid,
+               n_opar: nullable TOpar,
+               n_args: Collection[Object], # Should be Collection[AExpr]
+               n_cpar: nullable TCpar,
+               n_annotations: nullable AAnnotations
+       )
+       do
+               _n_doc = n_doc
+               if n_doc != null then n_doc.parent = self
+               _n_kwredef = n_kwredef
+               if n_kwredef != null then n_kwredef.parent = self
+               _n_visibility = n_visibility
+               if n_visibility != null then n_visibility.parent = self
+               _n_atid = n_atid.as(not null)
+               n_atid.parent = self
+               _n_opar = n_opar
+               if n_opar != null then n_opar.parent = self
+               self.n_args.unsafe_add_all(n_args)
+               _n_cpar = n_cpar
+               if n_cpar != null then n_cpar.parent = self
+               _n_annotations = n_annotations
+               if n_annotations != null then n_annotations.parent = self
+       end
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_doc == old_child then
+                       n_doc = new_child.as(nullable ADoc)
+                       return
+               end
+               if _n_kwredef == old_child then
+                       n_kwredef = new_child.as(nullable TKwredef)
+                       return
+               end
+               if _n_visibility == old_child then
+                       n_visibility = new_child.as(nullable AVisibility)
+                       return
+               end
+               if _n_atid == old_child then
+                       n_atid = new_child.as(AAtid)
+                       return
+               end
+               if _n_opar == old_child then
+                       n_opar = new_child.as(nullable TOpar)
+                       return
+               end
+               if n_args.replace_child(old_child, new_child) then return
+               if _n_cpar == old_child then
+                       n_cpar = new_child.as(nullable TCpar)
+                       return
+               end
+               if _n_annotations == old_child then
+                       n_annotations = new_child.as(nullable AAnnotations)
+                       return
+               end
        end
-        if _n_kwas == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwas
-                _n_kwas = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun n_doc=(node)
+       do
+               _n_doc = node
+               if node != null then node.parent = self
        end
-        if _n_to_type == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AType
-                _n_to_type = new_child
-           else
-               abort
-            end
-            return
+       redef fun n_kwredef=(node)
+       do
+               _n_kwredef = node
+               if node != null then node.parent = self
+       end
+       redef fun n_visibility=(node)
+       do
+               _n_visibility = node
+               if node != null then node.parent = self
+       end
+       redef fun n_atid=(node)
+       do
+               _n_atid = node
+               node.parent = self
+       end
+       redef fun n_opar=(node)
+       do
+               _n_opar = node
+               if node != null then node.parent = self
+       end
+       redef fun n_cpar=(node)
+       do
+               _n_cpar = node
+               if node != null then node.parent = self
+       end
+       redef fun n_annotations=(node)
+       do
+               _n_annotations = node
+               if node != null then node.parent = self
        end
-    end
-
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_from_type)
-        v.enter_visit(_n_kwas)
-        v.enter_visit(_n_to_type)
-    end
-end
-redef class AAsNullableExternCall
-    private init empty_init do end
 
-    init init_aasnullableexterncall (
-            n_type: nullable AType,
-            n_kwas: nullable TKwas,
-            n_kwnullable: nullable TKwnullable
-    )
-    do
-        empty_init
-        _n_type = n_type.as(not null)
-       n_type.parent = self
-        _n_kwas = n_kwas.as(not null)
-       n_kwas.parent = self
-        _n_kwnullable = n_kwnullable.as(not null)
-       n_kwnullable.parent = self
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_type == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AType
-                _n_type = new_child
-           else
-               abort
-            end
-            return
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_doc)
+               v.enter_visit(_n_kwredef)
+               v.enter_visit(_n_visibility)
+               v.enter_visit(_n_atid)
+               v.enter_visit(_n_opar)
+               n_args.visit_all(v)
+               v.enter_visit(_n_cpar)
+               v.enter_visit(_n_annotations)
+       end
+end
+redef class AIdAtid
+       init init_aidatid (
+               n_id: nullable TId
+       )
+       do
+               _n_id = n_id.as(not null)
+               n_id.parent = self
        end
-        if _n_kwas == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwas
-                _n_kwas = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_id == old_child then
+                       n_id = new_child.as(TId)
+                       return
+               end
        end
-        if _n_kwnullable == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwnullable
-                _n_kwnullable = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun n_id=(node)
+       do
+               _n_id = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_type)
-        v.enter_visit(_n_kwas)
-        v.enter_visit(_n_kwnullable)
-    end
-end
-redef class AAsNotNullableExternCall
-    private init empty_init do end
-
-    init init_aasnotnullableexterncall (
-            n_type: nullable AType,
-            n_kwas: nullable TKwas,
-            n_kwnot: nullable TKwnot,
-            n_kwnullable: nullable TKwnullable
-    )
-    do
-        empty_init
-        _n_type = n_type.as(not null)
-       n_type.parent = self
-        _n_kwas = n_kwas.as(not null)
-       n_kwas.parent = self
-        _n_kwnot = n_kwnot.as(not null)
-       n_kwnot.parent = self
-        _n_kwnullable = n_kwnullable.as(not null)
-       n_kwnullable.parent = self
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        if _n_type == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa AType
-                _n_type = new_child
-           else
-               abort
-            end
-            return
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_id)
        end
-        if _n_kwas == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwas
-                _n_kwas = new_child
-           else
-               abort
-            end
-            return
+end
+redef class AKwexternAtid
+       init init_akwexternatid (
+               n_id: nullable TKwextern
+       )
+       do
+               _n_id = n_id.as(not null)
+               n_id.parent = self
        end
-        if _n_kwnot == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwnot
-                _n_kwnot = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_id == old_child then
+                       n_id = new_child.as(TKwextern)
+                       return
+               end
        end
-        if _n_kwnullable == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TKwnullable
-                _n_kwnullable = new_child
-           else
-               abort
-            end
-            return
+
+       redef fun n_id=(node)
+       do
+               _n_id = node
+               node.parent = self
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-        v.enter_visit(_n_type)
-        v.enter_visit(_n_kwas)
-        v.enter_visit(_n_kwnot)
-        v.enter_visit(_n_kwnullable)
-    end
-end
-redef class AQualified
-    private init empty_init do end
 
-    init init_aqualified (
-            n_id: Collection[Object], # Should be Collection[TId]
-            n_classid: nullable TClassid
-    )
-    do
-        empty_init
-       for n in n_id do
-               assert n isa TId
-               _n_id.add(n)
-               n.parent = self
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_id)
        end
-        _n_classid = n_classid
-       if n_classid != null then
-               n_classid.parent = self
+end
+redef class AKwabstractAtid
+       init init_akwabstractatid (
+               n_id: nullable TKwabstract
+       )
+       do
+               _n_id = n_id.as(not null)
+               n_id.parent = self
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        for i in [0.._n_id.length[ do
-            if _n_id[i] == old_child then
-                if new_child != null then
-                   assert new_child isa TId
-                    _n_id[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_id.remove_at(i)
-                end
-                return
-            end
-        end
-        if _n_classid == old_child then
-            if new_child != null then
-                new_child.parent = self
-               assert new_child isa TClassid
-                _n_classid = new_child
-           else
-               _n_classid = null
-            end
-            return
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_id == old_child then
+                       n_id = new_child.as(TKwabstract)
+                       return
+               end
        end
-    end
 
-    redef fun visit_all(v: Visitor)
-    do
-            for n in _n_id do
-                v.enter_visit(n)
-           end
-        if _n_classid != null then
-            v.enter_visit(_n_classid.as(not null))
-        end
-    end
+       redef fun n_id=(node)
+       do
+               _n_id = node
+               node.parent = self
+       end
+
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_id)
+       end
 end
-redef class ADoc
-    private init empty_init do end
+redef class AKwimportAtid
+       init init_akwimportatid (
+               n_id: nullable TKwimport
+       )
+       do
+               _n_id = n_id.as(not null)
+               n_id.parent = self
+       end
 
-    init init_adoc (
-            n_comment: Collection[Object] # Should be Collection[TComment]
-    )
-    do
-        empty_init
-       for n in n_comment do
-               assert n isa TComment
-               _n_comment.add(n)
-               n.parent = self
+       redef fun replace_child(old_child: ANode, new_child: nullable ANode)
+       do
+               if _n_id == old_child then
+                       n_id = new_child.as(TKwimport)
+                       return
+               end
        end
-    end
 
-    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
-    do
-        for i in [0.._n_comment.length[ do
-            if _n_comment[i] == old_child then
-                if new_child != null then
-                   assert new_child isa TComment
-                    _n_comment[i] = new_child
-                    new_child.parent = self
-                else
-                    _n_comment.remove_at(i)
-                end
-                return
-            end
-        end
-    end
+       redef fun n_id=(node)
+       do
+               _n_id = node
+               node.parent = self
+       end
 
-    redef fun visit_all(v: Visitor)
-    do
-            for n in _n_comment do
-                v.enter_visit(n)
-           end
-    end
+
+       redef fun visit_all(v: Visitor)
+       do
+               v.enter_visit(_n_id)
+       end
 end
 
 redef class Start
-    init(
-        n_base: nullable AModule,
-        n_eof: EOF)
-    do
-        _n_base = n_base
-        _n_eof = n_eof
-    end
-
     redef fun replace_child(old_child: ANode, new_child: nullable ANode)
     do
         if _n_base == old_child then