Move dart2js from sdk/lib/_internal/compiler to pkg/compiler

sdk/lib/_internal/compiler/implementation/js_emitter/model.dart

-// Copyright (c) 2014, 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 dart2js.new_js_emitter.model;
-
-import '../js/js.dart' as js show Expression;
-import '../constants/values.dart' show ConstantValue;
-
-class Program {
-  final List<Output> outputs;
-  final bool outputContainsConstantList;
-  /// A map from load id to the list of outputs that need to be loaded.
-  final Map<String, List<Output>> loadMap;
-
-  Program(this.outputs, this.outputContainsConstantList, this.loadMap);
-}
-
-/**
- * This class represents a JavaScript object that contains static state, like
- * classes or functions.
- */
-class Holder {
-  final String name;
-  final int index;
-  Holder(this.name, this.index);
-}
-
-/**
- * This class represents one output file.
- *
- * If no library is deferred, there is only one [Output] of type [MainOutput].
- */
-abstract class Output {
-  bool get isMainOutput => mainOutput == this;
-  MainOutput get mainOutput;
-  final List<Library> libraries;
-  final List<Constant> constants;
-  // TODO(floitsch): should we move static fields into libraries or classes?
-  final List<StaticField> staticNonFinalFields;
-  // TODO(floitsch): lazy fields should be in their library or even class.
-  final List<StaticField> staticLazilyInitializedFields;
-
-  /// Output file name without extension.
-  final String outputFileName;
-
-  Output(this.outputFileName,
-         this.libraries,
-         this.staticNonFinalFields,
-         this.staticLazilyInitializedFields,
-         this.constants);
-}
-
-/**
- * The main output file.
- *
- * This code emitted from this [Output] must be loaded first. It can then load
- * other [DeferredOutput]s.
- */
-class MainOutput extends Output {
-  final js.Expression main;
-  final List<Holder> holders;
-
-  MainOutput(String outputFileName,
-             this.main,
-             List<Library> libraries,
-             List<StaticField> staticNonFinalFields,
-             List<StaticField> staticLazilyInitializedFields,
-             List<Constant> constants,
-             this.holders)
-      : super(outputFileName,
-              libraries,
-              staticNonFinalFields,
-              staticLazilyInitializedFields,
-              constants);
-
-  MainOutput get mainOutput => this;
-}
-
-/**
- * An output (file) for deferred code.
- */
-class DeferredOutput extends Output {
-  final MainOutput mainOutput;
-  final String name;
-
-  List<Holder> get holders => mainOutput.holders;
-
-  DeferredOutput(String outputFileName,
-                 this.name,
-                 this.mainOutput,
-                 List<Library> libraries,
-                 List<StaticField> staticNonFinalFields,
-                 List<StaticField> staticLazilyInitializedFields,
-                 List<Constant> constants)
-      : super(outputFileName,
-              libraries,
-              staticNonFinalFields,
-              staticLazilyInitializedFields,
-              constants);
-}
-
-class Constant {
-  final String name;
-  final Holder holder;
-  final ConstantValue value;
-
-  Constant(this.name, this.holder, this.value);
-}
-
-class Library {
-  final String uri;
-  final List<StaticMethod> statics;
-  final List<Class> classes;
-
-  Library(this.uri, this.statics, this.classes);
-}
-
-class StaticField {
-  final String name;
-  // TODO(floitsch): the holder for static fields is the isolate object. We
-  // could remove this field and use the isolate object directly.
-  final Holder holder;
-  final js.Expression code;
-  final bool isFinal;
-  final bool isLazy;
-
-  StaticField(this.name, this.holder, this.code,
-              this.isFinal, this.isLazy);
-}
-
-class Class {
-  final String name;
-  final Holder holder;
-  Class superclass;
-  final List<Method> methods;
-  final List<InstanceField> fields;
-
-  /// Whether the class must be evaluated eagerly.
-  bool isEager = false;
-
-  Class(this.name, this.holder, this.methods, this.fields,
-        { this.isEager: false });
-
-  void setSuperclass(Class superclass) {
-    this.superclass = superclass;
-  }
-
-  String get superclassName
-      => (superclass == null) ? "" : superclass.name;
-  int get superclassHolderIndex
-      => (superclass == null) ? 0 : superclass.holder.index;
-}
-
-class InstanceField {
-  final String name;
-
-  /// 00: Does not need any getter.
-  /// 01:  function() { return this.field; }
-  /// 10:  function(receiver) { return receiver.field; }
-  /// 11:  function(receiver) { return this.field; }
-  final int getterFlags;
-
-  /// 00: Does not need any setter.
-  /// 01:  function(value) { this.field = value; }
-  /// 10:  function(receiver, value) { receiver.field = value; }
-  /// 11:  function(receiver, value) { this.field = value; }
-  final int setterFlags;
-
-  // TODO(floitsch): support renamed fields.
-  InstanceField(this.name, this.getterFlags, this.setterFlags);
-
-  bool get needsGetter => getterFlags != 0;
-  bool get needsSetter => setterFlags != 0;
-}
-
-class Method {
-  final String name;
-  final js.Expression code;
-  Method(this.name, this.code);
-}
-
-class StaticMethod extends Method {
-  final Holder holder;
-  StaticMethod(String name, this.holder, js.Expression code)
-      : super(name, code);
-}