readme: add information section

[nit.git] / src / parser / parser_prod.nit

# Production AST nodes full definition.
# This file was generated by SableCC (http://www.sablecc.org/).
module parser_prod is no_warning("missing-doc")

import lexer
intrude import parser_nodes
private import tables

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
                _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

        redef fun replace_child(old_child: ANode, new_child: nullable ANode)
        do
                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

        redef fun n_moduledecl=(node)
        do
                _n_moduledecl = node
                if node != null then node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_moduledecl)
                n_imports.visit_all(v)
                n_extern_code_blocks.visit_all(v)
                n_classdefs.visit_all(v)
        end
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 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

        redef fun n_doc=(node)
        do
                _n_doc = node
                if node != null then node.parent = self
        end
        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
                node.parent = self
        end
        redef fun n_kwmodule=(node)
        do
                _n_kwmodule = node
                node.parent = self
        end
        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


        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
        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

        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 n_visibility=(node)
        do
                _n_visibility = node
                node.parent = self
        end
        redef fun n_kwimport=(node)
        do
                _n_kwimport = node
                node.parent = self
        end
        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


        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
        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

        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 n_visibility=(node)
        do
                _n_visibility = node
                node.parent = self
        end
        redef fun n_kwimport=(node)
        do
                _n_kwimport = node
                node.parent = self
        end
        redef fun n_kwend=(node)
        do
                _n_kwend = node
                node.parent = self
        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
        init init_apublicvisibility (
                n_kwpublic: nullable TKwpublic
        )
        do
                _n_kwpublic = n_kwpublic
                if n_kwpublic != null then n_kwpublic.parent = self
        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 n_kwpublic=(node)
        do
                _n_kwpublic = node
                if node != null then node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_kwpublic)
        end
end
redef class APrivateVisibility
        init init_aprivatevisibility (
                n_kwprivate: nullable TKwprivate
        )
        do
                _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 n_kwprivate=(node)
        do
                _n_kwprivate = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_kwprivate)
        end
end
redef class AProtectedVisibility
        init init_aprotectedvisibility (
                n_kwprotected: nullable TKwprotected
        )
        do
                _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 n_kwprotected=(node)
        do
                _n_kwprotected = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_kwprotected)
        end
end
redef class AIntrudeVisibility
        init init_aintrudevisibility (
                n_kwintrude: nullable TKwintrude
        )
        do
                _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 n_kwintrude=(node)
        do
                _n_kwintrude = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_kwintrude)
        end
end
redef class AStdClassdef
        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

        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

        redef fun n_doc=(node)
        do
                _n_doc = node
                if node != null then node.parent = self
        end
        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
                node.parent = self
        end
        redef fun n_classkind=(node)
        do
                _n_classkind = 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_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


        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
        init init_atopclassdef (
                n_propdefs: Collection[Object] # Should be Collection[APropdef]
        )
        do
                self.n_propdefs.unsafe_add_all(n_propdefs)
        end

        redef fun replace_child(old_child: ANode, new_child: nullable ANode)
        do
                if n_propdefs.replace_child(old_child, new_child) then return
        end



        redef fun visit_all(v: Visitor)
        do
                n_propdefs.visit_all(v)
        end
end
redef class AMainClassdef
        init init_amainclassdef (
                n_propdefs: Collection[Object] # Should be Collection[APropdef]
        )
        do
                self.n_propdefs.unsafe_add_all(n_propdefs)
        end

        redef fun replace_child(old_child: ANode, new_child: nullable ANode)
        do
                if n_propdefs.replace_child(old_child, new_child) then return
        end



        redef fun visit_all(v: Visitor)
        do
                n_propdefs.visit_all(v)
        end
end
redef class AConcreteClasskind
        init init_aconcreteclasskind (
                n_kwclass: nullable TKwclass
        )
        do
                _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 n_kwclass=(node)
        do
                _n_kwclass = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_kwclass)
        end
end
redef class AAbstractClasskind
        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

        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 n_kwabstract=(node)
        do
                _n_kwabstract = node
                node.parent = self
        end
        redef fun n_kwclass=(node)
        do
                _n_kwclass = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_kwabstract)
                v.enter_visit(_n_kwclass)
        end
end
redef class AInterfaceClasskind
        init init_ainterfaceclasskind (
                n_kwinterface: nullable TKwinterface
        )
        do
                _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 n_kwinterface=(node)
        do
                _n_kwinterface = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_kwinterface)
        end
end
redef class AEnumClasskind
        init init_aenumclasskind (
                n_kwenum: nullable TKwenum
        )
        do
                _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 n_kwenum=(node)
        do
                _n_kwenum = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_kwenum)
        end
end
redef class AExternClasskind
        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

        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 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


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_kwextern)
                v.enter_visit(_n_kwclass)
        end
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

        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

        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_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_annotations)
        end
end
redef class AAttrPropdef
        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

        redef fun n_doc=(node)
        do
                _n_doc = node
                if node != null then node.parent = self
        end
        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
                node.parent = self
        end
        redef fun n_kwvar=(node)
        do
                _n_kwvar = node
                node.parent = self
        end
        redef fun n_id2=(node)
        do
                _n_id2 = 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_assign=(node)
        do
                _n_assign = node
                if node != null then node.parent = self
        end
        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
        redef fun n_kwdo=(node)
        do
                _n_kwdo = node
                if node != null then node.parent = self
        end
        redef fun n_block=(node)
        do
                _n_block = 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


        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
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

        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

        redef fun n_kwredef=(node)
        do
                _n_kwredef = node
                if node != null then node.parent = self
        end
        redef fun n_block=(node)
        do
                _n_block = node
                if node != null then node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_kwredef)
                v.enter_visit(_n_block)
        end
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
                        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

        redef fun n_doc=(node)
        do
                _n_doc = node
                if node != null then node.parent = self
        end
        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
                node.parent = self
        end
        redef fun n_kwtype=(node)
        do
                _n_kwtype = node
                node.parent = self
        end
        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


        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 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_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_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_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 n_doc=(node)
        do
                _n_doc = node
                if node != null then node.parent = self
        end
        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
                node.parent = self
        end
        redef fun n_kwmeth=(node)
        do
                _n_kwmeth = node
                if node != null then node.parent = self
        end
        redef fun n_kwinit=(node)
        do
                _n_kwinit = node
                if node != null then node.parent = self
        end
        redef fun n_kwnew=(node)
        do
                _n_kwnew = node
                if node != null then node.parent = self
        end
        redef fun n_methid=(node)
        do
                _n_methid = node
                if node != null then node.parent = self
        end
        redef fun n_signature=(node)
        do
                _n_signature = node
                node.parent = self
        end
        redef fun n_annotations=(node)
        do
                _n_annotations = node
                if node != null then node.parent = self
        end
        redef fun n_extern_calls=(node)
        do
                _n_extern_calls = 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_kwdo=(node)
        do
                _n_kwdo = node
                if node != null then node.parent = self
        end
        redef fun n_block=(node)
        do
                _n_block = 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


        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_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

        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

        redef fun n_doc=(node)
        do
                _n_doc = node
                if node != null then node.parent = self
        end
        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
                node.parent = self
        end
        redef fun n_kwsuper=(node)
        do
                _n_kwsuper = 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


        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

        redef fun n_doc=(node)
        do
                _n_doc = node
                if node != null then node.parent = self
        end
        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


        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 AIdMethid
        init init_aidmethid (
                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 APlusMethid
        init init_aplusmethid (
                n_op: nullable TPlus
        )
        do
                _n_op = n_op.as(not null)
                n_op.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(TPlus)
                        return
                end
        end

        redef fun n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class AMinusMethid
        init init_aminusmethid (
                n_op: nullable TMinus
        )
        do
                _n_op = n_op.as(not null)
                n_op.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(TMinus)
                        return
                end
        end

        redef fun n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class AStarMethid
        init init_astarmethid (
                n_op: nullable TStar
        )
        do
                _n_op = n_op.as(not null)
                n_op.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(TStar)
                        return
                end
        end

        redef fun n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class AStarstarMethid
        init init_astarstarmethid (
                n_op: nullable TStarstar
        )
        do
                _n_op = n_op.as(not null)
                n_op.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(TStarstar)
                        return
                end
        end

        redef fun n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class ASlashMethid
        init init_aslashmethid (
                n_op: nullable TSlash
        )
        do
                _n_op = n_op.as(not null)
                n_op.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(TSlash)
                        return
                end
        end

        redef fun n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class APercentMethid
        init init_apercentmethid (
                n_op: nullable TPercent
        )
        do
                _n_op = n_op.as(not null)
                n_op.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(TPercent)
                        return
                end
        end

        redef fun n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class AEqMethid
        init init_aeqmethid (
                n_op: nullable TEq
        )
        do
                _n_op = n_op.as(not null)
                n_op.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 n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class ANeMethid
        init init_anemethid (
                n_op: nullable TNe
        )
        do
                _n_op = n_op.as(not null)
                n_op.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 n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class ALeMethid
        init init_alemethid (
                n_op: nullable TLe
        )
        do
                _n_op = n_op.as(not null)
                n_op.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 n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class AGeMethid
        init init_agemethid (
                n_op: nullable TGe
        )
        do
                _n_op = n_op.as(not null)
                n_op.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 n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class ALtMethid
        init init_altmethid (
                n_op: nullable TLt
        )
        do
                _n_op = n_op.as(not null)
                n_op.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 n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class AGtMethid
        init init_agtmethid (
                n_op: nullable TGt
        )
        do
                _n_op = n_op.as(not null)
                n_op.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 n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class ALlMethid
        init init_allmethid (
                n_op: nullable TLl
        )
        do
                _n_op = n_op.as(not null)
                n_op.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 n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class AGgMethid
        init init_aggmethid (
                n_op: nullable TGg
        )
        do
                _n_op = n_op.as(not null)
                n_op.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 n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class AStarshipMethid
        init init_astarshipmethid (
                n_op: nullable TStarship
        )
        do
                _n_op = n_op.as(not null)
                n_op.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 n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class APipeMethid
        init init_apipemethid (
                n_op: nullable TPipe
        )
        do
                _n_op = n_op.as(not null)
                n_op.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 n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class ACaretMethid
        init init_acaretmethid (
                n_op: nullable TCaret
        )
        do
                _n_op = n_op.as(not null)
                n_op.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 n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class AAmpMethid
        init init_aampmethid (
                n_op: nullable TAmp
        )
        do
                _n_op = n_op.as(not null)
                n_op.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 n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class ATildeMethid
        init init_atildemethid (
                n_op: nullable TTilde
        )
        do
                _n_op = n_op.as(not null)
                n_op.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 n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class ABraMethid
        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

        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 n_obra=(node)
        do
                _n_obra = node
                node.parent = self
        end
        redef fun n_cbra=(node)
        do
                _n_cbra = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_obra)
                v.enter_visit(_n_cbra)
        end
end
redef class AAssignMethid
        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

        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 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 visit_all(v: Visitor)
        do
                v.enter_visit(_n_id)
                v.enter_visit(_n_assign)
        end
end
redef class ABraassignMethid
        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

        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 n_obra=(node)
        do
                _n_obra = node
                node.parent = self
        end
        redef fun n_cbra=(node)
        do
                _n_cbra = node
                node.parent = self
        end
        redef fun n_assign=(node)
        do
                _n_assign = node
                node.parent = self
        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 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

        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

        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


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_qualified)
                v.enter_visit(_n_id)
        end
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

        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

        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


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_qualified)
                v.enter_visit(_n_id)
        end
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

        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

        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_type=(node)
        do
                _n_type = node
                if node != null then node.parent = self
        end


        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

        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
        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

        redef fun n_kwnullable=(node)
        do
                _n_kwnullable = node
                if node != null then node.parent = self
        end
        redef fun n_qid=(node)
        do
                _n_qid = node
                node.parent = self
        end
        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_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_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
        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

        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 n_kwlabel=(node)
        do
                _n_kwlabel = node
                node.parent = self
        end
        redef fun n_id=(node)
        do
                _n_id = node
                if node != null then node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_kwlabel)
                v.enter_visit(_n_id)
        end
end
redef class ABlockExpr
        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

        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

        redef fun n_kwend=(node)
        do
                _n_kwend = node
                if node != null then node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                n_expr.visit_all(v)
                v.enter_visit(_n_kwend)
        end
end
redef class AVardeclExpr
        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

        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

        redef fun n_kwvar=(node)
        do
                _n_kwvar = node
                if node != null then node.parent = self
        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_assign=(node)
        do
                _n_assign = node
                if node != null then node.parent = self
        end
        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


        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
        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

        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

        redef fun n_kwreturn=(node)
        do
                _n_kwreturn = node
                if node != null then node.parent = self
        end
        redef fun n_expr=(node)
        do
                _n_expr = node
                if node != null then node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_kwreturn)
                v.enter_visit(_n_expr)
        end
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

        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

        redef fun n_kwbreak=(node)
        do
                _n_kwbreak = node
                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_kwbreak)
                v.enter_visit(_n_label)
        end
end
redef class AAbortExpr
        init init_aabortexpr (
                n_kwabort: nullable TKwabort
        )
        do
                _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
                        n_kwabort = new_child.as(TKwabort)
                        return
                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 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

        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

        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


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_kwcontinue)
                v.enter_visit(_n_label)
        end
end
redef class ADoExpr
        init init_adoexpr (
                n_kwdo: nullable TKwdo,
                n_block: 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_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_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_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_kwdo)
                v.enter_visit(_n_block)
                v.enter_visit(_n_label)
        end
end
redef class AIfExpr
        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

        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

        redef fun n_kwif=(node)
        do
                _n_kwif = node
                node.parent = self
        end
        redef fun n_expr=(node)
        do
                _n_expr = node
                node.parent = self
        end
        redef fun n_kwthen=(node)
        do
                _n_kwthen = node
                node.parent = self
        end
        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


        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
        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
                        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

        redef fun n_kwif=(node)
        do
                _n_kwif = node
                node.parent = self
        end
        redef fun n_expr=(node)
        do
                _n_expr = node
                node.parent = self
        end
        redef fun n_kwthen=(node)
        do
                _n_kwthen = node
                node.parent = self
        end
        redef fun n_then=(node)
        do
                _n_then = node
                node.parent = self
        end
        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


        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
        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

        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

        redef fun n_kwwhile=(node)
        do
                _n_kwwhile = 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_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
        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

        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

        redef fun n_kwloop=(node)
        do
                _n_kwloop = 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_kwloop)
                v.enter_visit(_n_block)
                v.enter_visit(_n_label)
        end
end
redef class AForExpr
        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

        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

        redef fun n_kwfor=(node)
        do
                _n_kwfor = 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_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
        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

        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

        redef fun n_kwassert=(node)
        do
                _n_kwassert = node
                node.parent = self
        end
        redef fun n_id=(node)
        do
                _n_id = node
                if node != null then node.parent = self
        end
        redef fun n_expr=(node)
        do
                _n_expr = node
                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


        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
        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

        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 n_kwonce=(node)
        do
                _n_kwonce = 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_kwonce)
                v.enter_visit(_n_expr)
        end
end
redef class ASendExpr
        init init_asendexpr (
                n_expr: nullable AExpr
        )
        do
                _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 n_expr=(node)
        do
                _n_expr = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_expr)
        end
end
redef class ABinopExpr
        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

        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 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 visit_all(v: Visitor)
        do
                v.enter_visit(_n_expr)
                v.enter_visit(_n_expr2)
        end
end
redef class AOrExpr
        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

        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 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


        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
        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

        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 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


        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
                        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

        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


        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_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

        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


        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 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

        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 n_kwnot=(node)
        do
                _n_kwnot = 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_kwnot)
                v.enter_visit(_n_expr)
        end
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

        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 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


        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
        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

        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 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


        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
        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

        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 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


        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
        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

        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 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


        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
        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

        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 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


        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
        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
                        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

        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


        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
        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

        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 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


        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
        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

        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 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


        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
        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

        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 n_expr=(node)
        do
                _n_expr = node
                node.parent = self
        end
        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


        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
        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

        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 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


        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
        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

        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 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


        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
        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

        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 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


        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
        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

        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 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


        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 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

        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 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


        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
        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

        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 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


        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
        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

        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 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


        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 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

        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

        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


        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 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

        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 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


        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 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
                        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

        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


        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
        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

        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

        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


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
                v.enter_visit(_n_expr)
        end
end
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

        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

        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


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
                v.enter_visit(_n_expr)
        end
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

        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

        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


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
                v.enter_visit(_n_expr)
        end
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

        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

        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


        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 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

        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

        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_expr)
                v.enter_visit(_n_id)
        end
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

        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

        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 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_id)
                v.enter_visit(_n_assign)
                v.enter_visit(_n_value)
        end
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

        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 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 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_id)
                v.enter_visit(_n_assign_op)
                v.enter_visit(_n_value)
        end
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
                        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

        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 visit_all(v: Visitor)
        do
                v.enter_visit(_n_expr)
                v.enter_visit(_n_qid)
                v.enter_visit(_n_args)
        end
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

        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 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=(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_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
        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

        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 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 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_expr=(node)
        do
                _n_expr = 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_expr)
        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_type == old_child then
                        n_type = new_child.as(AType)
                        return
                end
        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_type)
        end
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

        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 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_expr)
                v.enter_visit(_n_id)
        end
end
redef class AAtExpr
        init init_aatexpr (
                n_annotations: nullable AAnnotations
        )
        do
                _n_annotations = n_annotations.as(not null)
                n_annotations.parent = self
        end

        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

        redef fun n_annotations=(node)
        do
                _n_annotations = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_annotations)
        end
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

        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 AListExprs
        init init_alistexprs (
                n_exprs: Collection[Object] # Should be Collection[AExpr]
        )
        do
                self.n_exprs.unsafe_add_all(n_exprs)
        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 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

        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 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
                v.enter_visit(_n_opar)
                n_exprs.visit_all(v)
                v.enter_visit(_n_cpar)
        end
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

        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 n_obra=(node)
        do
                _n_obra = node
                node.parent = self
        end
        redef fun n_cbra=(node)
        do
                _n_cbra = node
                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_cbra)
        end
end
redef class APlusAssignOp
        init init_aplusassignop (
                n_op: nullable TPluseq
        )
        do
                _n_op = n_op.as(not null)
                n_op.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 n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class AMinusAssignOp
        init init_aminusassignop (
                n_op: nullable TMinuseq
        )
        do
                _n_op = n_op.as(not null)
                n_op.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 n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class AStarAssignOp
        init init_astarassignop (
                n_op: nullable TStareq
        )
        do
                _n_op = n_op.as(not null)
                n_op.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 n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class ASlashAssignOp
        init init_aslashassignop (
                n_op: nullable TSlasheq
        )
        do
                _n_op = n_op.as(not null)
                n_op.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 n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class APercentAssignOp
        init init_apercentassignop (
                n_op: nullable TPercenteq
        )
        do
                _n_op = n_op.as(not null)
                n_op.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 n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class AStarstarAssignOp
        init init_astarstarassignop (
                n_op: nullable TStarstareq
        )
        do
                _n_op = n_op.as(not null)
                n_op.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 n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class APipeAssignOp
        init init_apipeassignop (
                n_op: nullable TPipeeq
        )
        do
                _n_op = n_op.as(not null)
                n_op.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 n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class ACaretAssignOp
        init init_acaretassignop (
                n_op: nullable TCareteq
        )
        do
                _n_op = n_op.as(not null)
                n_op.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 n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class AAmpAssignOp
        init init_aampassignop (
                n_op: nullable TAmpeq
        )
        do
                _n_op = n_op.as(not null)
                n_op.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 n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class ALlAssignOp
        init init_allassignop (
                n_op: nullable TLleq
        )
        do
                _n_op = n_op.as(not null)
                n_op.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(TLleq)
                        return
                end
        end

        redef fun n_op=(node)
        do
                _n_op = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_op)
        end
end
redef class AGgAssignOp
        init init_aggassignop (
                n_op: nullable TGgeq
        )
        do
                _n_op = n_op.as(not null)
                n_op.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 n_op=(node)
        do
                _n_op = node
                node.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_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

        redef fun n_kwin=(node)
        do
                _n_kwin = 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
                n_ids.visit_all(v)
                v.enter_visit(_n_kwin)
                v.enter_visit(_n_expr)
        end
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

        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

        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


        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 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

        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 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
end
redef class AExternCall
        init init_aexterncall
        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 ASuperExternCall
        init init_asuperexterncall (
                n_kwsuper: nullable TKwsuper
        )
        do
                _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
                        n_kwsuper = new_child.as(TKwsuper)
                        return
                end
        end

        redef fun n_kwsuper=(node)
        do
                _n_kwsuper = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_kwsuper)
        end
end
redef class ALocalPropExternCall
        init init_alocalpropexterncall (
                n_methid: nullable AMethid
        )
        do
                _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_methid == old_child then
                        n_methid = new_child.as(AMethid)
                        return
                end
        end

        redef fun n_methid=(node)
        do
                _n_methid = node
                node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_methid)
        end
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

        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

        redef fun n_type=(node)
        do
                _n_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_methid=(node)
        do
                _n_methid = node
                node.parent = self
        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 AInitPropExternCall
        init init_ainitpropexterncall (
                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_type == old_child then
                        n_type = new_child.as(AType)
                        return
                end
        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_type)
        end
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

        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 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


        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 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

        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 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_kwnullable=(node)
        do
                _n_kwnullable = node
                node.parent = self
        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
        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

        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

        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


        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
                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 n_kwin=(node)
        do
                _n_kwin = node
                node.parent = self
        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_kwin)
                v.enter_visit(_n_string)
        end
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

        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 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


        redef fun visit_all(v: Visitor)
        do
                v.enter_visit(_n_in_language)
                v.enter_visit(_n_extern_code_segment)
        end
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

        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 n_classid=(node)
        do
                _n_classid = node
                if node != null then node.parent = self
        end


        redef fun visit_all(v: Visitor)
        do
                n_id.visit_all(v)
                v.enter_visit(_n_classid)
        end
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

        redef fun replace_child(old_child: ANode, new_child: nullable ANode)
        do
                if n_comment.replace_child(old_child, new_child) then return
        end



        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

        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


        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

        redef fun n_doc=(node)
        do
                _n_doc = node
                if node != null then node.parent = self
        end
        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


        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

        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 AKwexternAtid
        init init_akwexternatid (
                n_id: nullable TKwextern
        )
        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(TKwextern)
                        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 AKwabstractAtid
        init init_akwabstractatid (
                n_id: nullable TKwabstract
        )
        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(TKwabstract)
                        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 AKwimportAtid
        init init_akwimportatid (
                n_id: nullable TKwimport
        )
        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(TKwimport)
                        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 Start
    redef fun replace_child(old_child: ANode, new_child: nullable ANode)
    do
        if _n_base == old_child then
            if new_child == null then
            else
                new_child.parent = self
                assert new_child isa AModule
                _n_base = new_child
            end
            old_child.parent = null
            return
        end
    end

    redef fun visit_all(v: Visitor)
    do
        if _n_base != null then
            v.enter_visit(_n_base.as(not null))
        end
        v.enter_visit(_n_eof)
    end
end