add src/doc in gitignore
[nit.git] / src / syntax / mmbuilder.nit
index 6acc061..8999b01 100644 (file)
 package mmbuilder
 
 import syntax_base
+private import primitive_info
+
+redef class ToolContext
+       redef fun handle_property_conflict(lc, impls)
+       do
+               var location: nullable Location = null
+               if lc isa MMSrcLocalClass then
+                       var node = lc.node
+                       if node != null then node.location
+               end
+               #if location == null then location = lc.mmmodule.location
+               var clas = new Array[MMLocalClass]
+               for i in impls do
+                       clas.add(i.local_class)
+               end
+               self.fatal_error(location, "Property inheritance conflict in class {lc} for `{impls.first.name}': conflicting properties are defined in {clas.join(", ")}")
+       end
+end
 
 # Class specialization hierarchy sorter
 private class CSHSorter
@@ -97,7 +115,7 @@ redef class MMSrcModule
                        c.accept_class_visitor(mmbv2)
 
                        # Default and inherited constructor if needed
-                       if c isa MMSrcLocalClass and c.global.intro == c and not c.global.is_enum and not c.global.is_interface then
+                       if c isa MMSrcLocalClass and c.global.intro == c and not c.global.is_enum and not c.global.is_extern and not c.global.is_interface then
                                c.process_default_constructors(mmbv2)
                        end
 
@@ -163,7 +181,7 @@ redef class MMSrcLocalClass
                        n = n.next_node
                end
 
-               for p in src_local_properties do
+               for p in src_local_properties.values do
                        p.accept_property_visitor(v)
                end
        end
@@ -183,7 +201,7 @@ redef class MMSrcLocalClass
                var super_inits = new ArraySet[MMLocalProperty]
                var super_constructors = new ArraySet[MMGlobalProperty]
                for sc in che.direct_greaters do
-                       if sc.global.is_enum or sc.global.is_interface then continue
+                       if sc.global.is_enum and not sc.global.is_extern or sc.global.is_interface then continue
                        for gp in sc.global_properties do
                                if not gp.is_init then continue
                                super_constructors.add(gp)
@@ -197,7 +215,7 @@ redef class MMSrcLocalClass
 
                # Collect unassigned attributes
                var unassigned_attributes = new Array[MMSrcAttribute]
-               for a in src_local_properties do
+               for a in src_local_properties.values do
                        if a isa MMSrcAttribute then
                                var n = a.node
                                if n.n_expr == null then unassigned_attributes.add(a)
@@ -302,7 +320,11 @@ redef class MMImplicitInit
                for a in unassigned_attributes do
                        var sig = a.signature
                        if sig == null then return # Broken attribute definition
-                       params.add( new MMParam( sig.return_type.as(not null), once "recv".to_symbol))
+                       var name = a.name
+                       if name.to_s.first == '_' or name.to_s.first == '@' then
+                               name = a.to_s.substring_from(1).to_symbol
+                       end
+                       params.add(new MMParam(sig.return_type.as(not null), name))
                end
                signature = new MMSignature(params, null, local_class.get_type)
        end
@@ -426,43 +448,38 @@ redef class AModule
        fun import_super_modules(tc: ToolContext, mod: MMSrcModule)
        do
                # Import super-modules
-               var module_names_to_import = new Array[Symbol]
-               var module_visibility = new HashMap[Symbol, Int]
+               var supers = new Array[MMModule]
                var no_import: nullable AImport = null
                for i in n_imports do
                        var n = i.module_name
                        if n != null then
-                               module_names_to_import.add(n)
-                               module_visibility[n] = i.visibility_level
+                               var m = tc.get_module(n, mod)
+                               supers.add(m)
+                               mod.add_super_module(m, i.visibility_level)
                        else
                                no_import = i
                        end
                end
                if no_import != null then
-                       if not module_names_to_import.is_empty then
+                       if not supers.is_empty then
                                tc.error(no_import.location, "Error: Top modules cannot import other modules.")
                        end
-               else if module_names_to_import.is_empty then
+               else if supers.is_empty then
                        var stdname = once "standard".to_symbol
-                       module_names_to_import.add(stdname)
-                       module_visibility[stdname] = 1
+                       var m = tc.get_module(stdname, mod)
+                       supers.add(m)
+                       mod.add_super_module(m, 1)
                end
 
-               mod.import_supers_modules(module_names_to_import)
-
-               for mname in module_names_to_import do
-                       var level = module_visibility[mname]
-                       var m = tc.get_module(mname, mod)
-                       mod.add_super_module(m, level)
-               end
+               tc.add_module(mod, supers)
        end
 end
 
 redef class AModuledecl
        redef fun accept_class_builder(v)
        do
-               if n_id.to_symbol != v.mmmodule.name then
-                       v.error(n_id, "Error: Module name mismatch between {v.mmmodule.name} and {n_id.to_symbol}")
+               if n_name.n_id.to_symbol != v.mmmodule.name then
+                       v.error(n_name.n_id, "Error: Module name mismatch between {v.mmmodule.name} and {n_name.n_id.to_symbol}")
                end
        end
 end
@@ -477,7 +494,7 @@ end
 redef class AStdImport
        redef fun module_name
        do
-               return n_id.to_symbol
+               return n_name.n_id.to_symbol
        end
        redef fun visibility_level
        do
@@ -527,7 +544,7 @@ redef class AClassdef
                var local_class: MMSrcLocalClass
                var mod = v.mmmodule
                var local_classes = mod.src_local_classes
-               if (local_classes.has_key(name)) then
+               if local_classes.has_key(name) then
                        local_class = local_classes[name]
                        _local_class = local_class
                        if self isa AStdClassdef then
@@ -637,6 +654,7 @@ redef class AClasskind
        fun is_interface: Bool do return false
        fun is_enum: Bool do return false
        fun is_abstract: Bool do return false
+       fun is_extern : Bool do return false
 end
 
 redef class AInterfaceClasskind
@@ -645,6 +663,9 @@ end
 redef class AEnumClasskind
        redef fun is_enum do return true
 end
+redef class AExternClasskind
+       redef fun is_extern do return true
+end
 redef class AAbstractClasskind
        redef fun is_abstract do return true
 end
@@ -658,19 +679,31 @@ redef class AStdClassdef
        do
                return n_formaldefs.length
        end
+       redef fun accept_class_specialization_builder(v)
+       do
+               super
+
+               var glob = local_class.global
+               if glob.intro == local_class then
+                       glob.is_interface = n_classkind.is_interface
+                       glob.is_abstract = n_classkind.is_abstract
+                       glob.is_enum = n_classkind.is_enum
+                       glob.is_extern = n_classkind.is_extern
+                       glob.visibility_level = visibility_level
+               end
+       end
        redef fun accept_class_verifier(v)
        do
                super
                var glob = _local_class.global
                if glob.intro == _local_class then
                        # Intro
-                       glob.visibility_level = visibility_level
-                       glob.is_interface = n_classkind.is_interface
-                       glob.is_abstract = n_classkind.is_abstract
-                       glob.is_enum = n_classkind.is_enum
                        if n_kwredef != null then
                                v.error(self, "Redef error: No class {name} is imported. Remove the redef keyword to define a new class.")
                        end
+                       if glob.is_extern then
+                               glob.mmmodule.is_extern_hybrid = true
+                       end
 
                        for c in _local_class.cshe.direct_greaters do
                                var cg = c.global
@@ -684,9 +717,15 @@ redef class AStdClassdef
                                        if not cg.is_interface and not cg.is_enum then
                                                v.error(self, "Special error: Enum class {name} try to specialise class {c.name}.")
                                        end
+                               else if glob.is_extern then
+                                       if not cg.is_interface and not cg.is_extern then
+                                               v.error(self, "Special error: Extern class {name} try to specialise class {c.name}.")
+                                       end
                                else
                                        if cg.is_enum then
                                                v.error(self, "Special error: Class {name} try to specialise enum class {c.name}.")
+                                       else if cg.is_extern then
+                                               v.error(self, "Special error: Class {name} try to specialise extern class {c.name}.")
                                        end
                                end
 
@@ -709,7 +748,8 @@ redef class AStdClassdef
                if 
                        not glob.is_interface and n_classkind.is_interface or
                        not glob.is_abstract and n_classkind.is_abstract or
-                       not glob.is_enum and n_classkind.is_enum
+                       not glob.is_enum and n_classkind.is_enum or
+                       not glob.is_extern and n_classkind.is_extern
                then
                        v.error(self, "Redef error: cannot change kind of class {name}.")
                end
@@ -840,6 +880,8 @@ redef class APropdef
                                v.error(self, "Error: Attempt to define attribute {prop} in the interface {prop.local_class}.")
                        else if gbc.is_enum then
                                v.error(self, "Error: Attempt to define attribute {prop} in the enum class {prop.local_class}.")
+                       else if gbc.is_extern then
+                               v.error(self, "Error: Attempt to define attribute {prop} in the extern class {prop.local_class}.")
                        end
                else if glob.is_init then
                        if gbc.is_interface then
@@ -847,6 +889,8 @@ redef class APropdef
                        else if gbc.is_enum then
                                v.error(self, "Error: Attempt to define a constructor {prop} in the enum {prop.local_class}.")
                        end
+
+                       # ok in extern
                end
                if prop.signature == null then
                        if glob.is_init then
@@ -894,7 +938,7 @@ redef class APropdef
        # The part of process_and_check when prop is a redefinition
        private fun do_and_check_redef(v: PropertyVerifierVisitor, prop: MMLocalProperty, has_redef: Bool, visibility_level: Int)
        do
-               var is_init = self isa AConcreteInitPropdef
+               var is_init = self isa AInitPropdef
                var glob = prop.global
 
                if not has_redef then
@@ -932,6 +976,8 @@ redef class APropdef
                                                t = v.type_array(t)
                                        end
                                        p.variable.stype = t
+
+                                       isig.params[p.position].name = p.variable.name
                                end
                                s = isig
                                prop.signature = s
@@ -1096,7 +1142,7 @@ redef class AMethPropdef
                super
                var name: Symbol
                if n_methid == null then
-                       if self isa AConcreteInitPropdef then
+                       if self isa AInitPropdef then
                                name = once "init".to_symbol
                        else
                                name = once "main".to_symbol
@@ -1154,7 +1200,7 @@ redef class AMainMethPropdef
        end
 end
 
-redef class AExternMethPropdef
+redef class AExternPropdef
        redef fun accept_property_verifier(v)
        do
                super # Compute signature
@@ -1163,7 +1209,7 @@ redef class AExternMethPropdef
                        ename = n_extern.text
                        ename = ename.substring(1, ename.length-2)
                else
-                       ename = "{method.mmmodule.name}_{method.local_class.name}_{method.local_class.name}_{method.name}_{method.signature.arity}"
+                       ename = method.default_extern_name
                end
                method.extern_name = ename
        end