Delete CPS IR

pkg/compiler/lib/src/js_backend/codegen/glue.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 code_generator_dependencies;
-
-import '../../common.dart';
-import '../../common/codegen.dart' show CodegenRegistry;
-import '../../compiler.dart' show Compiler;
-import '../../constants/values.dart';
-import '../../dart_types.dart' show DartType, TypeVariableType;
-import '../../elements/elements.dart';
-import '../../enqueue.dart' show CodegenEnqueuer;
-import '../../js/js.dart' as js;
-import '../../js_emitter/js_emitter.dart';
-import '../../native/native.dart' show NativeBehavior;
-import '../../types/types.dart';
-import '../../universe/selector.dart' show Selector;
-import '../../world.dart' show ClassWorld;
-import '../backend_helpers.dart' show BackendHelpers;
-import '../js_backend.dart';
-
-/// Encapsulates the dependencies of the function-compiler to the compiler,
-/// backend and emitter.
-// TODO(sigurdm): Should be refactored when we have a better feeling for the
-// interface.
-class Glue {
-  final Compiler _compiler;
-
-  CodegenEnqueuer get _enqueuer => _compiler.enqueuer.codegen;
-
-  FunctionElement get getInterceptorMethod => _helpers.getInterceptorMethod;
-
-  JavaScriptBackend get _backend => _compiler.backend;
-
-  BackendHelpers get _helpers => _backend.helpers;
-
-  CodeEmitterTask get _emitter => _backend.emitter;
-
-  Namer get _namer => _backend.namer;
-
-  Glue(this._compiler);
-
-  ClassWorld get classWorld => _compiler.world;
-
-  DiagnosticReporter get reporter => _compiler.reporter;
-
-  js.Expression constantReference(ConstantValue value) {
-    return _emitter.constantReference(value);
-  }
-
-  reportInternalError(String message) {
-    reporter.internalError(CURRENT_ELEMENT_SPANNABLE, message);
-  }
-
-  bool isUsedAsMixin(ClassElement classElement) {
-    return classWorld.isUsedAsMixin(classElement);
-  }
-
-  js.Expression staticFunctionAccess(FunctionElement element) {
-    return _backend.emitter.staticFunctionAccess(element);
-  }
-
-  js.Expression isolateStaticClosureAccess(FunctionElement element) {
-    return _backend.emitter.isolateStaticClosureAccess(element);
-  }
-
-  js.Expression staticFieldAccess(FieldElement element) {
-    return _backend.emitter.staticFieldAccess(element);
-  }
-
-  js.Expression isolateLazyInitializerAccess(FieldElement element) {
-    return _backend.emitter.isolateLazyInitializerAccess(element);
-  }
-
-  bool isLazilyInitialized(FieldElement element) {
-    return _backend.constants.lazyStatics.contains(element);
-  }
-
-  String safeVariableName(String name) {
-    return _namer.safeVariableName(name);
-  }
-
-  ClassElement get listClass => _compiler.coreClasses.listClass;
-
-  ConstructorElement get mapLiteralConstructor {
-    return _helpers.mapLiteralConstructor;
-  }
-
-  ConstructorElement get mapLiteralConstructorEmpty {
-    return _helpers.mapLiteralConstructorEmpty;
-  }
-
-  FunctionElement get identicalFunction => _compiler.identicalFunction;
-
-  js.Name invocationName(Selector selector) {
-    return _namer.invocationName(selector);
-  }
-
-  FunctionElement get createInvocationMirrorMethod {
-    return _helpers.createInvocationMirror;
-  }
-
-  bool isInterceptedSelector(Selector selector) {
-    return _backend.isInterceptedSelector(selector);
-  }
-
-  bool isInterceptedMethod(Element element) {
-    return _backend.isInterceptedMethod(element);
-  }
-
-  bool isInterceptorClass(ClassElement element) {
-    return element.isSubclassOf(_helpers.jsInterceptorClass);
-  }
-
-  Set<ClassElement> getInterceptedClassesOn(Selector selector) {
-    return _backend.getInterceptedClassesOn(selector.name);
-  }
-
-  Set<ClassElement> get interceptedClasses {
-    return _backend.interceptedClasses;
-  }
-
-  void registerSpecializedGetInterceptor(Set<ClassElement> classes) {
-    _backend.registerSpecializedGetInterceptor(classes);
-  }
-
-  js.Expression constructorAccess(ClassElement element) {
-    return _backend.emitter.constructorAccess(element);
-  }
-
-  js.Name instanceFieldPropertyName(Element field) {
-    return _namer.instanceFieldPropertyName(field);
-  }
-
-  js.Name instanceMethodName(FunctionElement element) {
-    return _namer.instanceMethodName(element);
-  }
-
-  js.Expression prototypeAccess(ClassElement e,
-      {bool hasBeenInstantiated: false}) {
-    return _emitter.prototypeAccess(e,
-        hasBeenInstantiated: hasBeenInstantiated);
-  }
-
-  js.Name getInterceptorName(Set<ClassElement> interceptedClasses) {
-    return _backend.namer.nameForGetInterceptor(interceptedClasses);
-  }
-
-  js.Expression getInterceptorLibrary() {
-    return new js.VariableUse(
-        _backend.namer.globalObjectFor(_helpers.interceptorsLibrary));
-  }
-
-  FunctionElement getWrapExceptionHelper() {
-    return _helpers.wrapExceptionHelper;
-  }
-
-  FunctionElement getExceptionUnwrapper() {
-    return _helpers.exceptionUnwrapper;
-  }
-
-  FunctionElement getTraceFromException() {
-    return _helpers.traceFromException;
-  }
-
-  FunctionElement getCreateRuntimeType() {
-    return _helpers.createRuntimeType;
-  }
-
-  FunctionElement getRuntimeTypeToString() {
-    return _helpers.runtimeTypeToString;
-  }
-
-  FunctionElement getRuntimeTypeArgument() {
-    return _helpers.getRuntimeTypeArgument;
-  }
-
-  FunctionElement getTypeArgumentByIndex() {
-    return _helpers.getTypeArgumentByIndex;
-  }
-
-  FunctionElement getAddRuntimeTypeInformation() {
-    return _helpers.setRuntimeTypeInfo;
-  }
-
-  /// checkSubtype(value, $isT, typeArgs, $asT)
-  FunctionElement getCheckSubtype() {
-    return _helpers.checkSubtype;
-  }
-
-  /// subtypeCast(value, $isT, typeArgs, $asT)
-  FunctionElement getSubtypeCast() {
-    return _helpers.subtypeCast;
-  }
-
-  /// checkSubtypeOfRuntime(value, runtimeType)
-  FunctionElement getCheckSubtypeOfRuntimeType() {
-    return _helpers.checkSubtypeOfRuntimeType;
-  }
-
-  /// subtypeOfRuntimeTypeCast(value, runtimeType)
-  FunctionElement getSubtypeOfRuntimeTypeCast() {
-    return _helpers.subtypeOfRuntimeTypeCast;
-  }
-
-  js.Expression getRuntimeTypeName(ClassElement cls) {
-    return js.quoteName(_namer.runtimeTypeName(cls));
-  }
-
-  int getTypeVariableIndex(TypeVariableType variable) {
-    return variable.element.index;
-  }
-
-  bool needsSubstitutionForTypeVariableAccess(ClassElement cls) {
-    ClassWorld classWorld = _compiler.world;
-    if (classWorld.isUsedAsMixin(cls)) return true;
-
-    return _compiler.world.anyStrictSubclassOf(cls, (ClassElement subclass) {
-      return !_backend.rti.isTrivialSubstitution(subclass, cls);
-    });
-  }
-
-  js.Expression generateTypeRepresentation(DartType dartType,
-      List<js.Expression> arguments, CodegenRegistry registry) {
-    int variableIndex = 0;
-    js.Expression representation = _backend.rtiEncoder
-        .getTypeRepresentation(dartType, (_) => arguments[variableIndex++]);
-    assert(variableIndex == arguments.length);
-    // Representation contains JavaScript Arrays.
-    registry.registerInstantiatedClass(_helpers.jsArrayClass);
-    return representation;
-  }
-
-  js.Name getTypeTestTag(DartType type) {
-    return _backend.namer.operatorIsType(type);
-  }
-
-  js.Name getTypeSubstitutionTag(ClassElement element) {
-    return _backend.namer.substitutionName(element);
-  }
-
-  bool operatorEqHandlesNullArgument(FunctionElement element) {
-    return _backend.operatorEqHandlesNullArgument(element);
-  }
-
-  bool hasStrictSubtype(ClassElement element) {
-    return _compiler.world.hasAnyStrictSubtype(element);
-  }
-
-  ClassElement get jsFixedArrayClass => _helpers.jsFixedArrayClass;
-  ClassElement get jsExtendableArrayClass => _helpers.jsExtendableArrayClass;
-  ClassElement get jsUnmodifiableArrayClass =>
-      _helpers.jsUnmodifiableArrayClass;
-  ClassElement get jsMutableArrayClass => _helpers.jsMutableArrayClass;
-
-  bool isStringClass(ClassElement classElement) =>
-      classElement == _helpers.jsStringClass ||
-      classElement == _compiler.coreClasses.stringClass;
-
-  bool isBoolClass(ClassElement classElement) =>
-      classElement == _helpers.jsBoolClass ||
-      classElement == _compiler.coreClasses.boolClass;
-
-  // TODO(sra,johnniwinther): Should this be part of CodegenRegistry?
-  void registerNativeBehavior(NativeBehavior nativeBehavior, node) {
-    if (nativeBehavior == null) return;
-    _enqueuer.nativeEnqueuer.registerNativeBehavior(nativeBehavior, node);
-  }
-
-  ConstantValue getDefaultParameterValue(ParameterElement elem) {
-    return _backend.constants.getConstantValue(elem.constant);
-  }
-
-  TypeMask extendMaskIfReachesAll(Selector selector, TypeMask mask) {
-    return _compiler.world.extendMaskIfReachesAll(selector, mask);
-  }
-
-  FunctionElement get closureFromTearOff => _backend.helpers.closureFromTearOff;
-
-  js.Name registerOneShotInterceptor(Selector selector) {
-    return _backend.registerOneShotInterceptor(selector);
-  }
-
-  bool mayGenerateInstanceofCheck(DartType type) {
-    return _backend.mayGenerateInstanceofCheck(type);
-  }
-
-  bool methodUsesReceiverArgument(FunctionElement function) {
-    assert(isInterceptedMethod(function));
-    ClassElement class_ = function.enclosingClass.declaration;
-    return isInterceptorClass(class_) || isUsedAsMixin(class_);
-  }
-}