Move lib from sdk/lib/_internal/compiler/implementation to _internal root.

sdk/lib/_internal/compiler/implementation/lib/js_mirrors.dart

Index: sdk/lib/_internal/compiler/implementation/lib/js_mirrors.dart
===================================================================
--- sdk/lib/_internal/compiler/implementation/lib/js_mirrors.dart	(revision 23664)
+++ sdk/lib/_internal/compiler/implementation/lib/js_mirrors.dart	(working copy)
@@ -1,588 +0,0 @@
-// 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.
-
-library dart._js_mirrors;
-
-import 'dart:async';
-import 'dart:mirrors';
-
-import 'dart:_foreign_helper' show JS, JS_CURRENT_ISOLATE;
-import 'dart:_collection-dev' as _symbol_dev;
-import 'dart:_js_helper' show
-    BoundClosure,
-    Closure,
-    JSInvocationMirror,
-    Null,
-    Primitives,
-    RuntimeError,
-    createInvocationMirror;
-import 'dart:_interceptors' show Interceptor;
-
-String getName(Symbol symbol) => n(symbol);
-
-class JsMirrorSystem implements MirrorSystem {
-  TypeMirror get dynamicType => _dynamicType;
-  TypeMirror get voidType => _voidType;
-
-  final static TypeMirror _dynamicType =
-      new JsTypeMirror(const Symbol('dynamic'));
-  final static TypeMirror _voidType = new JsTypeMirror(const Symbol('void'));
-
-  static final Map<String, List<LibraryMirror>> librariesByName =
-      computeLibrariesByName();
-
-  static final Map<String, String> mangledNames = computeMangledNames();
-
-  static final Map<String, String> reflectiveNames = computeReflectiveNames();
-
-  Iterable<LibraryMirror> findLibrary(Symbol libraryName) {
-    return new List<LibraryMirror>.from(librariesByName[n(libraryName)]);
-  }
-
-  static Map<String, List<LibraryMirror>> computeLibrariesByName() {
-    var result = new Map<String, List<LibraryMirror>>();
-    var jsLibraries = JS('=List|Null', 'init.libraries');
-    if (jsLibraries == null) return result;
-    for (List data in jsLibraries) {
-      String name = data[0];
-      Uri uri = Uri.parse(data[1]);
-      List<String> classes = data[2];
-      List<String> functions = data[3];
-      var metadataFunction = data[4];
-      List metadata = (metadataFunction == null)
-          ? null : JS('List', '#()', metadataFunction);
-      var libraries = result.putIfAbsent(name, () => <LibraryMirror>[]);
-      libraries.add(
-          new JsLibraryMirror(s(name), uri, classes, functions, metadata));
-    }
-    return result;
-  }
-
-  static Map<String, String> computeMangledNames() {
-    var mangledNames = JS('', 'init.mangledNames');
-    var keys = JS('List', '''
-(function(mangled, hasOwnProperty) {
-  var result = [];
-  for (var key in mangled) {
-    if (hasOwnProperty.call(mangled, key)) result.push(key);
-  }
-  return result;
-})(#, Object.prototype.hasOwnProperty)''', mangledNames);
-    var result = <String, String>{};
-    for (String key in keys) {
-      result[key] = JS('String', '#[#]', mangledNames, key);
-    }
-    return result;
-  }
-
-  static Map<String, String> computeReflectiveNames() {
-    var result = <String, String>{};
-    mangledNames.forEach((String mangledName, String reflectiveName) {
-      result[reflectiveName] = mangledName;
-    });
-    return result;
-  }
-}
-
-class JsTypeMirror implements TypeMirror {
-  final Symbol simpleName;
-  JsTypeMirror(this.simpleName);
-}
-
-class JsLibraryMirror extends JsObjectMirror implements LibraryMirror {
-  final Symbol simpleName;
-  final Uri uri;
-  final List<String> _classes;
-  final List<String> _functions;
-  final List _metadata;
-
-  JsLibraryMirror(this.simpleName,
-                 this.uri,
-                 this._classes,
-                 this._functions,
-                 this._metadata);
-
-  Symbol get qualifiedName => simpleName;
-
-  Map<Symbol, ClassMirror> get classes {
-    var result = new Map<Symbol, ClassMirror>();
-    for (String className in _classes) {
-      Symbol symbol = s(className);
-      JsClassMirror cls = reflectClassByName(symbol);
-      result[symbol] = cls;
-      cls._owner = this;
-    }
-    return result;
-  }
-
-  InstanceMirror setField(Symbol fieldName, Object arg) {
-    // TODO(ahe): This is extremely dangerous!!!
-    JS('void', '#[#] = #', JS_CURRENT_ISOLATE(), n(fieldName), arg);
-    return reflect(arg);
-  }
-
-  InstanceMirror getField(Symbol fieldName) {
-    // TODO(ahe): This is extremely dangerous!!!
-    return reflect(JS('', '#[#]', JS_CURRENT_ISOLATE(), n(fieldName)));
-  }
-
-  Map<Symbol, MethodMirror> get functions {
-    var result = new Map<Symbol, MethodMirror>();
-    for (int i = 0; i < _functions.length; i++) {
-      String name = _functions[i];
-      Symbol symbol = s(name);
-      int parameterCount = null; // TODO(ahe): Compute this.
-      JsMethodMirror mirror =
-          // TODO(ahe): Create accessor for accessing $.  It is also
-          // used in js_helper.
-          new JsMethodMirror(
-              symbol, JS('', '#[#]', JS_CURRENT_ISOLATE(), name),
-              parameterCount);
-      // TODO(ahe): Cache mirrors.
-      result[symbol] = mirror;
-      mirror._owner = this;
-    }
-    return result;
-  }
-
-  Map<Symbol, MethodMirror> get getters {
-    var result = new Map<Symbol, MethodMirror>();
-    // TODO(ahe): Implement this.
-    return result;
-  }
-
-  Map<Symbol, MethodMirror> get setters {
-    var result = new Map<Symbol, MethodMirror>();
-    // TODO(ahe): Implement this.
-    return result;
-  }
-
-  Map<Symbol, VariableMirror> get variables {
-    var result = new Map<Symbol, VariableMirror>();
-    // TODO(ahe): Implement this.
-    return result;
-  }
-
-  Map<Symbol, Mirror> get members {
-    Map<Symbol, Mirror> result = new Map<Symbol, Mirror>.from(classes);
-    addToResult(Symbol key, Mirror value) {
-      result[key] = value;
-    }
-    functions.forEach(addToResult);
-    getters.forEach(addToResult);
-    setters.forEach(addToResult);
-    variables.forEach(addToResult);
-    return result;
-  }
-
-  List<InstanceMirror> get metadata => _metadata.map(reflect).toList();
-}
-
-String n(Symbol symbol) => _symbol_dev.Symbol.getName(symbol);
-
-Symbol s(String name) {
-  if (name == null) return null;
-  return new _symbol_dev.Symbol.unvalidated(name);
-}
-
-final JsMirrorSystem currentJsMirrorSystem = new JsMirrorSystem();
-
-InstanceMirror reflect(Object reflectee) {
-  if (reflectee is Closure) {
-    return new JsClosureMirror(reflectee);
-  } else {
-    return new JsInstanceMirror(reflectee);
-  }
-}
-
-final Expando<ClassMirror> classMirrors = new Expando<ClassMirror>();
-
-ClassMirror reflectType(Type key) => reflectClassByName(s('$key'));
-
-ClassMirror reflectClassByName(Symbol symbol) {
-  String className = n(symbol);
-  var constructor = Primitives.getConstructor(className);
-  if (constructor == null) {
-    // Probably an intercepted class.
-    // TODO(ahe): How to handle intercepted classes?
-    throw new UnsupportedError('Cannot find class for: $className');
-  }
-  var descriptor = JS('', '#["@"]', constructor);
-  var fields;
-  var fieldsMetadata;
-  if (descriptor == null) {
-    // This is a native class, or an intercepted class.
-    // TODO(ahe): Preserve descriptor for such classes.
-  } else {
-    fields = JS('', '#[""]', descriptor);
-    if (fields is List) {
-      fieldsMetadata = fields.getRange(1, fields.length).toList();
-      fields = fields[0];
-    }
-    if (fields is! String) {
-      // TODO(ahe): This is CSP mode.  Find a way to determine the
-      // fields of this class.
-      fields = '';
-    }
-  }
-  var mirror = classMirrors[constructor];
-  if (mirror == null) {
-    mirror = new JsClassMirror(symbol, constructor, fields, fieldsMetadata);
-    classMirrors[constructor] = mirror;
-  }
-  return mirror;
-}
-
-abstract class JsObjectMirror implements ObjectMirror {
-  Future<InstanceMirror> setFieldAsync(Symbol fieldName, Object value) {
-    return new Future<InstanceMirror>(() => this.setField(fieldName, value));
-  }
-
-  Future<InstanceMirror> getFieldAsync(Symbol fieldName) {
-    return new Future<InstanceMirror>(() => this.getField(fieldName));
-  }
-}
-
-class JsInstanceMirror extends JsObjectMirror implements InstanceMirror {
-  final reflectee;
-
-  JsInstanceMirror(this.reflectee);
-
-  bool get hasReflectee => true;
-
-  ClassMirror get type => reflectType(reflectee.runtimeType);
-
-  Future<InstanceMirror> invokeAsync(Symbol memberName,
-                                     List<Object> positionalArguments,
-                                     [Map<Symbol, dynamic> namedArguments]) {
-    if (namedArguments != null && !namedArguments.isEmpty) {
-      throw new UnsupportedError('Named arguments are not implemented');
-    }
-    return
-        new Future<InstanceMirror>(
-            () => invoke(memberName, positionalArguments, namedArguments));
-  }
-
-  InstanceMirror invoke(Symbol memberName,
-                        List positionalArguments,
-                        [Map<Symbol,dynamic> namedArguments]) {
-    if (namedArguments != null && !namedArguments.isEmpty) {
-      throw new UnsupportedError('Named arguments are not implemented');
-    }
-    // Copy the list to ensure that it can safely be passed to
-    // JavaScript.
-    var jsList = new List.from(positionalArguments);
-    String reflectiveName = '${n(memberName)}:${positionalArguments.length}:0';
-    String mangledName = JsMirrorSystem.reflectiveNames[reflectiveName];
-    return _invoke(memberName, JSInvocationMirror.METHOD, mangledName, jsList);
-  }
-
-  InstanceMirror _invoke(Symbol name,
-                         int type,
-                         String mangledName,
-                         List arguments) {
-    // TODO(ahe): Get the argument names.
-    List<String> argumentNames = [];
-    Invocation invocation = createInvocationMirror(
-        n(name), mangledName, type, arguments, argumentNames);
-
-    return reflect(delegate(invocation));
-  }
-
-  InstanceMirror setField(Symbol fieldName, Object arg) {
-    _invoke(
-        fieldName, JSInvocationMirror.SETTER, 'set\$${n(fieldName)}', [arg]);
-    return reflect(arg);
-  }
-
-  InstanceMirror getField(Symbol fieldName) {
-    return _invoke(
-        fieldName, JSInvocationMirror.GETTER, 'get\$${n(fieldName)}', []);
-  }
-
-  delegate(Invocation invocation) {
-    return JSInvocationMirror.invokeFromMirror(invocation, reflectee);
-  }
-
-  String toString() => 'InstanceMirror($reflectee)';
-}
-
-class JsClassMirror extends JsObjectMirror implements ClassMirror {
-  final Symbol simpleName;
-  final _jsConstructor;
-  final String _fields;
-  final List _fieldsMetadata;
-  List _metadata;
-  // Set as side-effect of accessing JsLibraryMirror.classes.
-  JsLibraryMirror _owner;
-
-  JsClassMirror(this.simpleName,
-                this._jsConstructor,
-                this._fields,
-                this._fieldsMetadata);
-
-  Symbol get qualifiedName => computeQualifiedName(owner, simpleName);
-
-  Map<Symbol, MethodMirror> get functions {
-    var result = new Map<Symbol, MethodMirror>();
-    // TODO(ahe): Implement this.
-    return result;
-  }
-
-  Map<Symbol, MethodMirror> get getters {
-    var result = new Map<Symbol, MethodMirror>();
-    // TODO(ahe): Implement this.
-    return result;
-  }
-
-  Map<Symbol, MethodMirror> get setters {
-    var result = new Map<Symbol, MethodMirror>();
-    // TODO(ahe): Implement this.
-    return result;
-  }
-
-  Map<Symbol, VariableMirror> get variables {
-    var result = new Map<Symbol, VariableMirror>();
-    var s = _fields.split(";");
-    var fields = s[1] == "" ? [] : s[1].split(",");
-    int fieldNumber = 0;
-    for (String field in fields) {
-      var metadata;
-      if (_fieldsMetadata != null) {
-        metadata = _fieldsMetadata[fieldNumber++];
-      }
-      JsVariableMirror mirror = new JsVariableMirror.from(field, metadata);
-      result[mirror.simpleName] = mirror;
-      mirror._owner = this;
-    }
-    return result;
-  }
-
-  Map<Symbol, Mirror> get members {
-    Map<Symbol, Mirror> result = new Map<Symbol, Mirror>.from(functions);
-    addToResult(Symbol key, Mirror value) {
-      result[key] = value;
-    }
-    getters.forEach(addToResult);
-    setters.forEach(addToResult);
-    variables.forEach(addToResult);
-    return result;
-  }
-
-  InstanceMirror setField(Symbol fieldName, Object arg) {
-    // TODO(ahe): This is extremely dangerous!!!
-    JS('void', '#[#] = #', JS_CURRENT_ISOLATE(),
-       '${n(simpleName)}_${n(fieldName)}', arg);
-    return reflect(arg);
-  }
-
-  InstanceMirror getField(Symbol fieldName) {
-    // TODO(ahe): This is extremely dangerous!!!
-    return reflect(
-        JS('', '#[#]', JS_CURRENT_ISOLATE(),
-           '${n(simpleName)}_${n(fieldName)}'));
-  }
-
-  InstanceMirror newInstance(Symbol constructorName,
-                             List positionalArguments,
-                             [Map<Symbol,dynamic> namedArguments]) {
-    if (namedArguments != null && !namedArguments.isEmpty) {
-      throw new UnsupportedError('Named arguments are not implemented');
-    }
-    String constructorName = '${n(simpleName)}\$${n(constructorName)}';
-    return reflect(JS('', r'#[#].apply(#, #)', JS_CURRENT_ISOLATE(),
-                       constructorName,
-                       JS_CURRENT_ISOLATE(),
-                       new List.from(positionalArguments)));
-  }
-
-  Future<InstanceMirror> newInstanceAsync(
-      Symbol constructorName,
-      List positionalArguments,
-      [Map<Symbol, dynamic> namedArguments]) {
-    if (namedArguments != null && !namedArguments.isEmpty) {
-      throw new UnsupportedError('Named arguments are not implemented');
-    }
-    return new Future<InstanceMirror>(
-        () => newInstance(
-            constructorName, positionalArguments, namedArguments));
-  }
-
-  DeclarationMirror get owner {
-    if (_owner == null) {
-      if (_jsConstructor is Interceptor) {
-        _owner = reflectType(Object).owner;
-      } else {
-        for (var list in JsMirrorSystem.librariesByName.values) {
-          for (JsLibraryMirror library in list) {
-            // This will set _owner field on all clasess as a side
-            // effect.  This gives us a fast path to reflect on a
-            // class without parsing reflection data.
-            library.classes;
-          }
-        }
-      }
-      if (_owner == null) {
-        throw new StateError('Class "${n(simpleName)}" has no owner');
-      }
-    }
-    return _owner;
-  }
-
-  List<InstanceMirror> get metadata {
-    if (_metadata == null) {
-      _metadata = extractMetadata(JS('', '#.prototype', _jsConstructor));
-    }
-    return _metadata.map(reflect).toList();
-  }
-
-  String toString() => 'ClassMirror(${n(simpleName)})';
-}
-
-class JsVariableMirror implements VariableMirror {
-  // TODO(ahe): The values in these fields are virtually untested.
-  final Symbol simpleName;
-  final String _jsName;
-  final bool isFinal;
-  final bool isStatic;
-  final _metadataFunction;
-  DeclarationMirror _owner;
-  List _metadata;
-
-  JsVariableMirror(this.simpleName,
-                   this._jsName,
-                   this.isFinal,
-                   this.isStatic,
-                   this._metadataFunction);
-
-  factory JsVariableMirror.from(String descriptor, metadataFunction) {
-    int length = descriptor.length;
-    var code = fieldCode(descriptor.codeUnitAt(length - 1));
-    bool isFinal = false;
-    // code might be 0 if the accessors aren't needed, or if they are
-    // inherited.
-    // TODO(ahe): Ensure code is only 0 for inherited fields.
-    if (code != 0) {
-      bool hasGetter = (code & 3) != 0;
-      bool hasSetter = (code >> 2) != 0;
-      isFinal = !hasSetter;
-      length--;
-    }
-    String jsName;
-    String accessorName = jsName = descriptor.substring(0, length);
-    int divider = descriptor.indexOf(":");
-    if (divider > 0) {
-      accessorName = accessorName.substring(0, divider);
-      jsName = accessorName.substring(divider + 1);
-    }
-    return new JsVariableMirror(
-        s(accessorName), jsName, isFinal, false, metadataFunction);
-  }
-
-  TypeMirror get type => JsMirrorSystem._dynamicType;
-
-  DeclarationMirror get owner => _owner;
-
-  Symbol get qualifiedName => computeQualifiedName(owner, simpleName);
-
-  List<InstanceMirror> get metadata {
-    if (_metadata == null) {
-      _metadata = (_metadataFunction == null)
-          ? const [] : JS('', '#()', _metadataFunction);
-    }
-    return _metadata.map(reflect).toList();
-  }
-
-  bool get isPrivate => n(simpleName).startsWith('_');
-
-  String toString() => 'VariableMirror(${n(qualifiedName)})';
-
-  static int fieldCode(int code) {
-    if (code >= 60 && code <= 64) return code - 59;
-    if (code >= 123 && code <= 126) return code - 117;
-    if (code >= 37 && code <= 43) return code - 27;
-    return 0;
-  }
-}
-
-class JsClosureMirror extends JsInstanceMirror implements ClosureMirror {
-  JsClosureMirror(reflectee) : super(reflectee);
-
-  MethodMirror get function {
-    // TODO(ahe): What about optional parameters (named or not).
-    var extractCallName = JS('', r'''
-function(reflectee) {
-  for (var property in reflectee) {
-    if ("call$" == property.substring(0, 5)) return property;
-  }
-  return null;
-}
-''');
-    String callName = JS('String|Null', '#(#)', extractCallName, reflectee);
-    if (callName == null) {
-      throw new RuntimeError('Cannot find callName on "$reflectee"');
-    }
-    int parameterCount = int.parse(callName.split(r'$')[1]);
-    if (reflectee is BoundClosure) {
-      var target = BoundClosure.targetOf(reflectee);
-      var self = BoundClosure.selfOf(reflectee);
-      return new JsMethodMirror(
-          s(target), JS('', '#[#]', self, target), parameterCount);
-    } else {
-      var jsFunction = JS('', '#[#]', reflectee, callName);
-      return new JsMethodMirror(s(callName), jsFunction, parameterCount);
-    }
-  }
-
-  InstanceMirror apply(List positionalArguments,
-                       [Map<Symbol, dynamic> namedArguments]) {
-    return reflect(
-        Function.apply(reflectee, positionalArguments, namedArguments));
-  }
-
-  Future<InstanceMirror> applyAsync(List positionalArguments,
-                                    [Map<Symbol, dynamic> namedArguments]) {
-    return new Future<InstanceMirror>(
-        () => apply(positionalArguments, namedArguments));
-  }
-}
-
-class JsMethodMirror implements MethodMirror {
-  final Symbol simpleName;
-  final _jsFunction;
-  final int _parameterCount;
-  DeclarationMirror _owner;
-  List _metadata;
-
-  JsMethodMirror(this.simpleName, this._jsFunction, this._parameterCount);
-
-  List<ParameterMirror> get parameters {
-    // TODO(ahe): Fill the list with parameter mirrors.
-    return new List<ParameterMirror>(_parameterCount);
-  }
-
-  DeclarationMirror get owner => _owner;
-
-  Symbol get qualifiedName => computeQualifiedName(owner, simpleName);
-
-  List<InstanceMirror> get metadata {
-    if (_metadata == null) {
-      _metadata = extractMetadata(_jsFunction);
-    }
-    return _metadata.map(reflect).toList();
-  }
-}
-
-Symbol computeQualifiedName(DeclarationMirror owner, Symbol simpleName) {
-  if (owner == null) return simpleName;
-  String ownerName = n(owner.qualifiedName);
-  if (ownerName == '') return simpleName;
-  return s('$ownerName.${n(simpleName)}');
-}
-
-List extractMetadata(victim) {
-  var metadataFunction = JS('', '#["@"]', victim);
-  return (metadataFunction == null)
-      ? const [] : JS('', '#()', metadataFunction);
-}