Add mixin support to source mirrors.

sdk/lib/_internal/compiler/implementation/mirrors/dart2js_mirror.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library mirrors_dart2js;
 
 import 'dart:async';
 
 import '../../compiler.dart' as api;
 import '../elements/elements.dart';
@@ skipping 275 matching lines @@
    * Returns the element to be used to determine the begin token of this
    * declaration and the metadata associated with this declaration.
    *
    * This indirection is needed to use the [VariableListElement] as the location
    * for type and metadata information on a [VariableElement].
    */
   Element get _beginElement => _element;
 
   String get simpleName => _element.name;
 
+  bool get isNameSynthetic => false;
+
   /**
    * Computes the first token for this declaration using the begin token of the
    * element node or element position as indicator.
    */
   Token getBeginToken() {
     // TODO(johnniwinther): Avoid calling [parseNode].
     Node node = _beginElement.parseNode(mirrors.compiler);
     if (node == null) {
       return _beginElement.position();
     }
@@ skipping 224 matching lines @@
 
   LibraryMirror library() => this;
 
   /**
    * Returns the library name (for libraries with a library tag) or the script
    * file name (for scripts without a library tag). The latter case is used to
    * provide a 'library name' for scripts, to use for instance in dartdoc.
    */
   String get simpleName {
     if (_library.libraryTag != null) {
-      // TODO(ahe): Remove StringNode check when old syntax is removed.
-      StringNode name = _library.libraryTag.name.asStringNode();
-      if (name != null) {
-        return name.dartString.slowToString();
-      } else {
-        return _library.libraryTag.name.toString();
-      }
+      return _library.libraryTag.name.toString();
     } else {
       // Use the file name as script name.
       String path = _library.canonicalUri.path;
       return path.substring(path.lastIndexOf('/') + 1);
     }
   }
 
   String get qualifiedName => simpleName;
 
   void _ensureClasses() {
@@ skipping 283 matching lines @@
 
   ClassMirror get originalDeclaration => this;
 
   ClassMirror get superclass {
     if (_class.supertype != null) {
       return new Dart2JsInterfaceTypeMirror(mirrors, _class.supertype);
     }
     return null;
   }
 
+  ClassMirror get mixin {
+    if (_class.isMixinApplication) {
+      MixinApplicationElement mixinApplication = _class;
+      return new Dart2JsInterfaceTypeMirror(mirrors,
+                                            mixinApplication.mixinType);
+    }
+    return this;
+  }
+
+  bool get isNameSynthetic {
+    if (_class.isMixinApplication) {
+      MixinApplicationElement mixinApplication = _class;
+      return mixinApplication.isUnnamedMixinApplication;
+    }
+    return false;
+  }
+
   List<ClassMirror> get superinterfaces {
     var list = <ClassMirror>[];
     Link<DartType> link = _class.interfaces;
     while (!link.isEmpty) {
       var type = _convertTypeToTypeMirror(mirrors, link.head,
                                           mirrors.compiler.types.dynamicType);
       list.add(type);
       link = link.tail;
     }
     return list;
@@ skipping 91 matching lines @@
     return _definition;
   }
 
   ClassMirror get originalDeclaration => this;
 
   // TODO(johnniwinther): How should a typedef respond to these?
   ClassMirror get superclass => null;
 
   List<ClassMirror> get superinterfaces => const <ClassMirror>[];
 
+  ClassMirror get mixin => this;

[karlklose, 2013/11/05 10:34:18]

Add a TODO about removing this?

[Johnni Winther, 2013/11/05 11:20:47]

Done.

+
   bool get isClass => false;
 
   bool get isOriginalDeclaration => true;
 
   bool get isAbstract => false;
 }
 
 class Dart2JsTypeVariableMirror extends Dart2JsTypeElementMirror
     implements TypeVariableMirror {
   final TypeVariableType _typeVariableType;
@@ skipping 99 matching lines @@
 class Dart2JsInterfaceTypeMirror extends Dart2JsTypeElementMirror
     implements ClassMirror {
   List<TypeMirror> _typeArguments;
 
   Dart2JsInterfaceTypeMirror(Dart2JsMirrorSystem system,
                              InterfaceType interfaceType)
       : super(system, interfaceType);
 
   InterfaceType get _interfaceType => _type;
 
+  bool get isNameSynthetic => originalDeclaration.isNameSynthetic;
+
   String get qualifiedName => originalDeclaration.qualifiedName;
 
   // TODO(johnniwinther): Substitute type arguments for type variables.
   Map<String, MemberMirror> get members => originalDeclaration.members;
 
   bool get isObject => mirrors.compiler.objectClass == _type.element;
 
   // TODO(johnniwinther): How to show malformed types?
   bool get isDynamic => _type.isDynamic;
 
   ClassMirror get originalDeclaration
       => new Dart2JsClassMirror(mirrors, _type.element);
 
   // TODO(johnniwinther): Substitute type arguments for type variables.
   ClassMirror get superclass => originalDeclaration.superclass;
 
   // TODO(johnniwinther): Substitute type arguments for type variables.
   List<ClassMirror> get superinterfaces => originalDeclaration.superinterfaces;
 
+  // TODO(johnniwinther): Substitute type arguments for type variables.
+  ClassMirror get mixin {
+    if (originalDeclaration.mixin == originalDeclaration) {
+      return this;
+    }
+    return originalDeclaration.mixin;
+  }
+
   bool get isClass => originalDeclaration.isClass;
 
   bool get isAbstract => originalDeclaration.isAbstract;
 
   bool get isPrivate => originalDeclaration.isPrivate;
 
   bool get isOriginalDeclaration => false;
 
   List<TypeMirror> get typeArguments {
     if (_typeArguments == null) {
@@ skipping 54 matching lines @@
   }
 }
 
 
 class Dart2JsFunctionTypeMirror extends Dart2JsTypeElementMirror
     implements FunctionTypeMirror {
   final FunctionSignature _functionSignature;
   List<ParameterMirror> _parameters;
 
   Dart2JsFunctionTypeMirror(Dart2JsMirrorSystem system,
-                             FunctionType functionType, this._functionSignature)
+                            FunctionType functionType, this._functionSignature)
       : super(system, functionType) {
     assert (_functionSignature != null);
   }
 
   FunctionType get _functionType => _type;
 
   // TODO(johnniwinther): Is this the qualified name of a function type?
   String get qualifiedName => originalDeclaration.qualifiedName;
 
   // TODO(johnniwinther): Substitute type arguments for type variables.
@@ skipping 18 matching lines @@
 
   ClassMirror get originalDeclaration
       => new Dart2JsClassMirror(mirrors, mirrors.compiler.functionClass);
 
   // TODO(johnniwinther): Substitute type arguments for type variables.
   ClassMirror get superclass => originalDeclaration.superclass;
 
   // TODO(johnniwinther): Substitute type arguments for type variables.
   List<ClassMirror> get superinterfaces => originalDeclaration.superinterfaces;
 
+  ClassMirror get mixin => this;
+
   bool get isClass => originalDeclaration.isClass;
 
   bool get isPrivate => originalDeclaration.isPrivate;
 
   bool get isOriginalDeclaration => false;
 
   bool get isAbstract => false;
 
   List<TypeMirror> get typeArguments => const <TypeMirror>[];
 
@@ skipping 527 matching lines @@
  *
  * All API in this class is experimental.
  */
 class BackDoor {
   /// Return the compilation units comprising [library].
   static List<Mirror> compilationUnitsOf(Dart2JsLibraryMirror library) {
     return library._library.compilationUnits.toList().map(
         (cu) => new Dart2JsCompilationUnitMirror(cu, library)).toList();
   }
 }