Delete support for source mirrors

pkg/compiler/lib/src/mirrors/dart2js_member_mirrors.dart

-// Copyright (c) 2013, 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.
-
-part of dart2js.mirrors;
-
-//------------------------------------------------------------------------------
-// Member mirrors implementation.
-//------------------------------------------------------------------------------
-
-abstract class Dart2JsMemberMirror extends Dart2JsElementMirror {
-  Dart2JsMemberMirror(Dart2JsMirrorSystem system, AstElement element)
-      : super(system, element);
-
-  bool get isStatic => false;
-}
-
-class Dart2JsMethodKind {
-  static const Dart2JsMethodKind REGULAR = const Dart2JsMethodKind("regular");
-  static const Dart2JsMethodKind GENERATIVE =
-      const Dart2JsMethodKind("generative");
-  static const Dart2JsMethodKind REDIRECTING =
-      const Dart2JsMethodKind("redirecting");
-  static const Dart2JsMethodKind CONST = const Dart2JsMethodKind("const");
-  static const Dart2JsMethodKind FACTORY = const Dart2JsMethodKind("factory");
-  static const Dart2JsMethodKind GETTER = const Dart2JsMethodKind("getter");
-  static const Dart2JsMethodKind SETTER = const Dart2JsMethodKind("setter");
-  static const Dart2JsMethodKind OPERATOR = const Dart2JsMethodKind("operator");
-
-  final String text;
-
-  const Dart2JsMethodKind(this.text);
-
-  String toString() => text;
-}
-
-class Dart2JsMethodMirror extends Dart2JsMemberMirror implements MethodMirror {
-  final Dart2JsDeclarationMirror owner;
-  final String _simpleNameString;
-  final Dart2JsMethodKind _kind;
-
-  Dart2JsMethodMirror._internal(
-      Dart2JsDeclarationMirror owner,
-      FunctionElement function,
-      String this._simpleNameString,
-      Dart2JsMethodKind this._kind)
-      : this.owner = owner,
-        super(owner.mirrorSystem, function);
-
-  factory Dart2JsMethodMirror(
-      Dart2JsDeclarationMirror owner, FunctionElement function) {
-    String simpleName = function.name;
-    // TODO(ahe): This method should not be calling
-    // Elements.operatorNameToIdentifier.
-    Dart2JsMethodKind kind;
-    if (function.kind == ElementKind.GETTER) {
-      kind = Dart2JsMethodKind.GETTER;
-    } else if (function.kind == ElementKind.SETTER) {
-      kind = Dart2JsMethodKind.SETTER;
-      simpleName = '$simpleName=';
-    } else if (function.kind == ElementKind.GENERATIVE_CONSTRUCTOR) {
-      // TODO(johnniwinther): Support detection of redirecting constructors.
-      if (function.isConst) {
-        kind = Dart2JsMethodKind.CONST;
-      } else {
-        kind = Dart2JsMethodKind.GENERATIVE;
-      }
-    } else if (function.isFactoryConstructor) {
-      // TODO(johnniwinther): Support detection of redirecting constructors.
-      kind = Dart2JsMethodKind.FACTORY;
-    } else if (function.isOperator) {
-      kind = Dart2JsMethodKind.OPERATOR;
-    } else {
-      kind = Dart2JsMethodKind.REGULAR;
-    }
-    return new Dart2JsMethodMirror._internal(owner, function, simpleName, kind);
-  }
-
-  FunctionElement get _function => _element;
-
-  bool get isTopLevel => owner is LibraryMirror;
-
-  // TODO(johnniwinther): This seems stale and broken.
-  Symbol get constructorName => isConstructor ? simpleName : const Symbol('');
-
-  bool get isConstructor =>
-      isGenerativeConstructor ||
-      isConstConstructor ||
-      isFactoryConstructor ||
-      isRedirectingConstructor;
-
-  bool get isSynthetic => false;
-
-  bool get isStatic => _function.isStatic;
-
-  List<ParameterMirror> get parameters {
-    return _parametersFromFunctionSignature(this, _function.functionSignature);
-  }
-
-  TypeMirror get returnType =>
-      owner._getTypeMirror(_function.functionSignature.type.returnType);
-
-  bool get isAbstract => _function.isAbstract;
-
-  bool get isRegularMethod => !(isGetter || isSetter || isConstructor);
-
-  bool get isConstConstructor => _kind == Dart2JsMethodKind.CONST;
-
-  bool get isGenerativeConstructor => _kind == Dart2JsMethodKind.GENERATIVE;
-
-  bool get isRedirectingConstructor => _kind == Dart2JsMethodKind.REDIRECTING;
-
-  bool get isFactoryConstructor => _kind == Dart2JsMethodKind.FACTORY;
-
-  bool get isGetter => _kind == Dart2JsMethodKind.GETTER;
-
-  bool get isSetter => _kind == Dart2JsMethodKind.SETTER;
-
-  bool get isOperator => _kind == Dart2JsMethodKind.OPERATOR;
-
-  DeclarationMirror lookupInScope(String name) {
-    for (Dart2JsParameterMirror parameter in parameters) {
-      if (parameter._element.name == name) {
-        return parameter;
-      }
-    }
-    return super.lookupInScope(name);
-  }
-
-  // TODO(johnniwinther): Should this really be in the interface of
-  // [MethodMirror]?
-  String get source => location.sourceText;
-
-  String toString() => 'Mirror on method ${_element.name}';
-}
-
-class Dart2JsFieldMirror extends Dart2JsMemberMirror implements VariableMirror {
-  final Dart2JsDeclarationMirror owner;
-  VariableElement _variable;
-
-  Dart2JsFieldMirror(Dart2JsDeclarationMirror owner, VariableElement variable)
-      : this.owner = owner,
-        this._variable = variable,
-        super(owner.mirrorSystem, variable);
-
-  bool get isTopLevel => owner is LibraryMirror;
-
-  bool get isStatic => _variable.isStatic;
-
-  bool get isFinal => _variable.isFinal;
-
-  bool get isConst => _variable.isConst;
-
-  TypeMirror get type => owner._getTypeMirror(_variable.type);
-}
-
-class Dart2JsParameterMirror extends Dart2JsMemberMirror
-    implements ParameterMirror {
-  final Dart2JsDeclarationMirror owner;
-  final bool isOptional;
-  final bool isNamed;
-
-  factory Dart2JsParameterMirror(
-      Dart2JsDeclarationMirror owner, FormalElement element,
-      {bool isOptional: false, bool isNamed: false}) {
-    if (element is InitializingFormalElement) {
-      return new Dart2JsFieldParameterMirror(
-          owner, element, isOptional, isNamed);
-    } else {
-      return new Dart2JsParameterMirror._normal(
-          owner, element, isOptional, isNamed);
-    }
-  }
-
-  Dart2JsParameterMirror._normal(Dart2JsDeclarationMirror owner,
-      FormalElement element, this.isOptional, this.isNamed)
-      : this.owner = owner,
-        super(owner.mirrorSystem, element);
-
-  FormalElement get _element => super._element;
-
-  TypeMirror get type => owner._getTypeMirror(_element.type);
-
-  bool get isFinal => false;
-
-  bool get isConst => false;
-
-  InstanceMirror get defaultValue {
-    if (hasDefaultValue) {
-      // TODO(johnniwinther): Get the constant from the [TreeElements]
-      // associated with the enclosing method.
-      ParameterElement parameter = _element;
-      ConstantExpression constant = parameter.constant;
-      assert(invariant(parameter, constant != null,
-          message: "Missing constant for parameter "
-              "$parameter with default value."));
-      return _convertConstantToInstanceMirror(mirrorSystem, constant,
-          mirrorSystem.compiler.constants.getConstantValue(constant));
-    }
-    return null;
-  }
-
-  bool get hasDefaultValue {
-    if (_element is ParameterElement) {
-      ParameterElement parameter = _element;
-      return parameter.initializer != null;
-    }
-    return false;
-  }
-
-  bool get isInitializingFormal => false;
-
-  VariableMirror get initializedField => null;
-}
-
-class Dart2JsFieldParameterMirror extends Dart2JsParameterMirror {
-  Dart2JsFieldParameterMirror(Dart2JsDeclarationMirror method,
-      InitializingFormalElement element, bool isOptional, bool isNamed)
-      : super._normal(method, element, isOptional, isNamed);
-
-  InitializingFormalElement get _fieldParameterElement => _element;
-
-  bool get isInitializingFormal => true;
-
-  VariableMirror get initializedField =>
-      new Dart2JsFieldMirror(owner.owner, _fieldParameterElement.fieldElement);
-}