| // Copyright (c) 2016, 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. |
| |
| import 'package:front_end/src/api_unstable/dart2js.dart' |
| show operatorFromString; |
| |
| import 'package:kernel/ast.dart' as ir; |
| |
| import '../common.dart'; |
| import '../common/names.dart'; |
| import '../common_elements.dart'; |
| import '../constants/expressions.dart'; |
| import '../constants/values.dart'; |
| import '../elements/entities.dart'; |
| import '../elements/types.dart'; |
| import '../ir/scope.dart'; |
| import '../ir/static_type.dart'; |
| import '../ir/util.dart'; |
| import '../js_backend/annotations.dart'; |
| import '../js_backend/native_data.dart'; |
| import '../options.dart'; |
| import '../resolution/registry.dart' show ResolutionWorldImpactBuilder; |
| import '../universe/call_structure.dart'; |
| import '../universe/feature.dart'; |
| import '../universe/selector.dart'; |
| import '../universe/use.dart'; |
| import '../universe/world_builder.dart'; |
| import 'element_map.dart'; |
| import 'runtime_type_analysis.dart'; |
| |
| class KernelImpactBuilder extends StaticTypeVisitor { |
| final ResolutionWorldImpactBuilder impactBuilder; |
| final KernelToElementMap elementMap; |
| final DiagnosticReporter reporter; |
| final CompilerOptions _options; |
| final MemberEntity currentMember; |
| final VariableScopeModel variableScopeModel; |
| final Set<PragmaAnnotation> _annotations; |
| |
| KernelImpactBuilder(this.elementMap, this.currentMember, this.reporter, |
| this._options, this.variableScopeModel, this._annotations) |
| : this.impactBuilder = |
| new ResolutionWorldImpactBuilder('${currentMember}'), |
| super(elementMap.typeEnvironment); |
| |
| CommonElements get commonElements => elementMap.commonElements; |
| |
| NativeBasicData get _nativeBasicData => elementMap.nativeBasicData; |
| |
| bool get useAsserts => _options.enableUserAssertions; |
| |
| bool get inferEffectivelyFinalVariableTypes => |
| !_annotations.contains(PragmaAnnotation.disableFinal); |
| |
| /// Add a checked-mode type use of [type] if it is not `dynamic`. |
| DartType checkType(ir.DartType irType, TypeUseKind kind) { |
| DartType type = elementMap.getDartType(irType); |
| if (kind != null && !type.isDynamic) { |
| switch (kind) { |
| case TypeUseKind.PARAMETER_CHECK: |
| impactBuilder.registerTypeUse(new TypeUse.parameterCheck(type)); |
| break; |
| case TypeUseKind.IMPLICIT_CAST: |
| impactBuilder.registerTypeUse(new TypeUse.implicitCast(type)); |
| break; |
| default: |
| throw new UnsupportedError("Unexpected type check kind: $kind"); |
| } |
| } |
| return type; |
| } |
| |
| List<DartType> _getTypeArguments(ir.Arguments arguments) { |
| if (arguments.types.isEmpty) return null; |
| return arguments.types.map(elementMap.getDartType).toList(); |
| } |
| |
| /// Add checked-mode type use for the parameter type and constant for the |
| /// default value of [parameter]. |
| @override |
| void handleParameter(ir.VariableDeclaration parameter) { |
| checkType(parameter.type, TypeUseKind.PARAMETER_CHECK); |
| } |
| |
| /// Add checked-mode type use for parameter and return types, and add |
| /// constants for default values. |
| @override |
| void handleSignature(ir.FunctionNode node) { |
| for (ir.TypeParameter parameter in node.typeParameters) { |
| checkType(parameter.bound, TypeUseKind.PARAMETER_CHECK); |
| } |
| } |
| |
| @override |
| void handleField(ir.Field field) { |
| checkType(field.type, TypeUseKind.PARAMETER_CHECK); |
| if (field.initializer != null) { |
| if (!field.isInstanceMember && |
| !field.isConst && |
| field.initializer is! ir.NullLiteral) { |
| impactBuilder.registerFeature(Feature.LAZY_FIELD); |
| } |
| } else { |
| impactBuilder.registerConstantLiteral(new NullConstantExpression()); |
| } |
| |
| if (field.isInstanceMember && |
| elementMap.isNativeClass(field.enclosingClass)) { |
| MemberEntity member = elementMap.getMember(field); |
| bool isJsInterop = _nativeBasicData.isJsInteropMember(member); |
| impactBuilder.registerNativeData(elementMap |
| .getNativeBehaviorForFieldLoad(field, isJsInterop: isJsInterop)); |
| impactBuilder |
| .registerNativeData(elementMap.getNativeBehaviorForFieldStore(field)); |
| } |
| } |
| |
| @override |
| void handleConstructor(ir.Constructor constructor) { |
| MemberEntity member = elementMap.getMember(constructor); |
| if (constructor.isExternal && !commonElements.isForeignHelper(member)) { |
| bool isJsInterop = _nativeBasicData.isJsInteropMember(member); |
| impactBuilder.registerNativeData(elementMap |
| .getNativeBehaviorForMethod(constructor, isJsInterop: isJsInterop)); |
| } |
| } |
| |
| void handleAsyncMarker(ir.FunctionNode function) { |
| ir.AsyncMarker asyncMarker = function.asyncMarker; |
| if (asyncMarker == ir.AsyncMarker.Sync) return; |
| |
| DartType elementType = |
| elementMap.getFunctionAsyncOrSyncStarElementType(function); |
| |
| switch (asyncMarker) { |
| case ir.AsyncMarker.SyncStar: |
| impactBuilder.registerFeature(Feature.SYNC_STAR); |
| impactBuilder.registerStaticUse(new StaticUse.staticInvoke( |
| commonElements.syncStarIterableFactory, |
| const CallStructure.unnamed(1, 1), |
| <DartType>[elementType])); |
| break; |
| |
| case ir.AsyncMarker.Async: |
| impactBuilder.registerFeature(Feature.ASYNC); |
| var completerFactory = commonElements.asyncAwaitCompleterFactory; |
| impactBuilder.registerStaticUse(new StaticUse.staticInvoke( |
| completerFactory, |
| const CallStructure.unnamed(0, 1), |
| <DartType>[elementType])); |
| break; |
| |
| case ir.AsyncMarker.AsyncStar: |
| impactBuilder.registerFeature(Feature.ASYNC_STAR); |
| impactBuilder.registerStaticUse(new StaticUse.staticInvoke( |
| commonElements.asyncStarStreamControllerFactory, |
| const CallStructure.unnamed(1, 1), |
| <DartType>[elementType])); |
| break; |
| |
| case ir.AsyncMarker.Sync: |
| case ir.AsyncMarker.SyncYielding: |
| failedAt(CURRENT_ELEMENT_SPANNABLE, |
| "Unexpected async marker: ${asyncMarker}"); |
| } |
| } |
| |
| @override |
| void handleProcedure(ir.Procedure procedure) { |
| handleAsyncMarker(procedure.function); |
| MemberEntity member = elementMap.getMember(procedure); |
| if (procedure.isExternal && !commonElements.isForeignHelper(member)) { |
| bool isJsInterop = _nativeBasicData.isJsInteropMember(member); |
| impactBuilder.registerNativeData(elementMap |
| .getNativeBehaviorForMethod(procedure, isJsInterop: isJsInterop)); |
| } |
| } |
| |
| @override |
| void handleIntLiteral(ir.IntLiteral node) { |
| impactBuilder.registerConstantLiteral( |
| new IntConstantExpression(new BigInt.from(node.value).toUnsigned(64))); |
| } |
| |
| @override |
| void handleDoubleLiteral(ir.DoubleLiteral node) { |
| impactBuilder |
| .registerConstantLiteral(new DoubleConstantExpression(node.value)); |
| } |
| |
| @override |
| void handleBoolLiteral(ir.BoolLiteral node) { |
| impactBuilder |
| .registerConstantLiteral(new BoolConstantExpression(node.value)); |
| } |
| |
| @override |
| void handleStringLiteral(ir.StringLiteral node) { |
| impactBuilder |
| .registerConstantLiteral(new StringConstantExpression(node.value)); |
| } |
| |
| @override |
| void handleSymbolLiteral(ir.SymbolLiteral node) { |
| impactBuilder.registerConstSymbolName(node.value); |
| } |
| |
| @override |
| void handleNullLiteral(ir.NullLiteral node) { |
| impactBuilder.registerConstantLiteral(new NullConstantExpression()); |
| } |
| |
| @override |
| void handleListLiteral(ir.ListLiteral node) { |
| DartType elementType = elementMap.getDartType(node.typeArgument); |
| |
| impactBuilder.registerListLiteral(new ListLiteralUse( |
| commonElements.listType(elementType), |
| isConstant: node.isConst, |
| isEmpty: node.expressions.isEmpty)); |
| } |
| |
| @override |
| void handleMapLiteral(ir.MapLiteral node) { |
| DartType keyType = elementMap.getDartType(node.keyType); |
| DartType valueType = elementMap.getDartType(node.valueType); |
| impactBuilder.registerMapLiteral(new MapLiteralUse( |
| commonElements.mapType(keyType, valueType), |
| isConstant: node.isConst, |
| isEmpty: node.entries.isEmpty)); |
| } |
| |
| @override |
| void handleConstructorInvocation(ir.ConstructorInvocation node, |
| ArgumentTypes argumentTypes, ir.DartType resultType) { |
| handleNew(node, node.target, isConst: node.isConst); |
| } |
| |
| void handleNew(ir.InvocationExpression node, ir.Member target, |
| {bool isConst: false}) { |
| ConstructorEntity constructor = elementMap.getConstructor(target); |
| if (commonElements.isSymbolConstructor(constructor)) { |
| impactBuilder.registerFeature(Feature.SYMBOL_CONSTRUCTOR); |
| } |
| |
| if (target.isExternal && |
| constructor.isFromEnvironmentConstructor && |
| !isConst) { |
| impactBuilder.registerFeature(Feature.THROW_UNSUPPORTED_ERROR); |
| // We need to register the external constructor as live below, so don't |
| // return here. |
| } |
| |
| InterfaceType type = elementMap.createInterfaceType( |
| target.enclosingClass, node.arguments.types); |
| CallStructure callStructure = elementMap.getCallStructure(node.arguments); |
| ImportEntity deferredImport = elementMap.getImport(getDeferredImport(node)); |
| impactBuilder.registerStaticUse(isConst |
| ? new StaticUse.constConstructorInvoke( |
| constructor, callStructure, type, deferredImport) |
| : new StaticUse.typedConstructorInvoke( |
| constructor, callStructure, type, deferredImport)); |
| if (type.typeArguments.any((DartType type) => !type.isDynamic)) { |
| impactBuilder.registerFeature(Feature.TYPE_VARIABLE_BOUNDS_CHECK); |
| } |
| if (isConst && commonElements.isSymbolConstructor(constructor)) { |
| ConstantValue value = |
| elementMap.getConstantValue(node.arguments.positional.first); |
| if (!value.isString) { |
| // TODO(het): Get the actual span for the Symbol constructor argument |
| reporter.reportErrorMessage( |
| CURRENT_ELEMENT_SPANNABLE, |
| MessageKind.STRING_EXPECTED, |
| {'type': value.getType(elementMap.commonElements)}); |
| return; |
| } |
| StringConstantValue stringValue = value; |
| impactBuilder.registerConstSymbolName(stringValue.stringValue); |
| } |
| } |
| |
| @override |
| Null handleSuperInitializer( |
| ir.SuperInitializer node, ArgumentTypes argumentTypes) { |
| // TODO(johnniwinther): Maybe rewrite `node.target` to point to a |
| // synthesized unnamed mixin constructor when needed. This would require us |
| // to consider impact building a required pre-step for inference and |
| // ssa-building. |
| ConstructorEntity target = |
| elementMap.getSuperConstructor(node.parent, node.target); |
| impactBuilder.registerStaticUse(new StaticUse.superConstructorInvoke( |
| target, elementMap.getCallStructure(node.arguments))); |
| } |
| |
| void handleStaticInvocation(ir.StaticInvocation node, |
| ArgumentTypes argumentTypes, ir.DartType returnType) { |
| if (node.target.kind == ir.ProcedureKind.Factory) { |
| // TODO(johnniwinther): We should not mark the type as instantiated but |
| // rather follow the type arguments directly. |
| // |
| // Consider this: |
| // |
| // abstract class A<T> { |
| // factory A.regular() => new B<T>(); |
| // factory A.redirect() = B<T>; |
| // } |
| // |
| // class B<T> implements A<T> {} |
| // |
| // main() { |
| // print(new A<int>.regular() is B<int>); |
| // print(new A<String>.redirect() is B<String>); |
| // } |
| // |
| // To track that B is actually instantiated as B<int> and B<String> we |
| // need to follow the type arguments passed to A.regular and A.redirect |
| // to B. Currently, we only do this soundly if we register A<int> and |
| // A<String> as instantiated. We should instead register that A.T is |
| // instantiated as int and String. |
| handleNew(node, node.target, isConst: node.isConst); |
| } else { |
| FunctionEntity target = elementMap.getMethod(node.target); |
| List<DartType> typeArguments = _getTypeArguments(node.arguments); |
| if (commonElements.isExtractTypeArguments(target)) { |
| _handleExtractTypeArguments(node, target, typeArguments); |
| return; |
| } |
| ImportEntity deferredImport = |
| elementMap.getImport(getDeferredImport(node)); |
| impactBuilder.registerStaticUse(new StaticUse.staticInvoke( |
| target, |
| elementMap.getCallStructure(node.arguments), |
| typeArguments, |
| deferredImport)); |
| } |
| switch (elementMap.getForeignKind(node)) { |
| case ForeignKind.JS: |
| impactBuilder |
| .registerNativeData(elementMap.getNativeBehaviorForJsCall(node)); |
| break; |
| case ForeignKind.JS_BUILTIN: |
| impactBuilder.registerNativeData( |
| elementMap.getNativeBehaviorForJsBuiltinCall(node)); |
| break; |
| case ForeignKind.JS_EMBEDDED_GLOBAL: |
| impactBuilder.registerNativeData( |
| elementMap.getNativeBehaviorForJsEmbeddedGlobalCall(node)); |
| break; |
| case ForeignKind.JS_INTERCEPTOR_CONSTANT: |
| InterfaceType type = |
| elementMap.getInterfaceTypeForJsInterceptorCall(node); |
| if (type != null) { |
| impactBuilder.registerTypeUse(new TypeUse.instantiation(type)); |
| } |
| break; |
| case ForeignKind.NONE: |
| break; |
| } |
| } |
| |
| void _handleExtractTypeArguments(ir.StaticInvocation node, |
| FunctionEntity target, List<DartType> typeArguments) { |
| // extractTypeArguments<Map>(obj, fn) has additional impacts: |
| // |
| // 1. All classes implementing Map need to carry type arguments (similar |
| // to checking `o is Map<K, V>`). |
| // |
| // 2. There is an invocation of fn with some number of type arguments. |
| // |
| impactBuilder.registerStaticUse(new StaticUse.staticInvoke( |
| target, elementMap.getCallStructure(node.arguments), typeArguments)); |
| |
| if (typeArguments.length != 1) return; |
| DartType matchedType = typeArguments.first; |
| |
| if (matchedType is! InterfaceType) return; |
| InterfaceType interfaceType = matchedType; |
| ClassEntity cls = interfaceType.element; |
| InterfaceType thisType = elementMap.elementEnvironment.getThisType(cls); |
| |
| impactBuilder.registerTypeUse(new TypeUse.isCheck(thisType)); |
| |
| Selector selector = new Selector.callClosure( |
| 0, const <String>[], thisType.typeArguments.length); |
| impactBuilder.registerDynamicUse( |
| new ConstrainedDynamicUse(selector, null, thisType.typeArguments)); |
| } |
| |
| @override |
| void handleStaticGet(ir.StaticGet node, ir.DartType resultType) { |
| ir.Member target = node.target; |
| if (target is ir.Procedure && target.kind == ir.ProcedureKind.Method) { |
| FunctionEntity method = elementMap.getMethod(target); |
| impactBuilder.registerStaticUse(new StaticUse.staticTearOff( |
| method, elementMap.getImport(getDeferredImport(node)))); |
| } else { |
| MemberEntity member = elementMap.getMember(target); |
| impactBuilder.registerStaticUse(new StaticUse.staticGet( |
| member, elementMap.getImport(getDeferredImport(node)))); |
| } |
| } |
| |
| @override |
| void handleStaticSet(ir.StaticSet node, ir.DartType valueType) { |
| MemberEntity member = elementMap.getMember(node.target); |
| impactBuilder.registerStaticUse(new StaticUse.staticSet( |
| member, elementMap.getImport(getDeferredImport(node)))); |
| } |
| |
| void handleSuperInvocation(ir.Name name, ir.Node arguments) { |
| FunctionEntity method = |
| elementMap.getSuperMember(currentMember, name, setter: false); |
| List<DartType> typeArguments = _getTypeArguments(arguments); |
| if (method != null) { |
| impactBuilder.registerStaticUse(new StaticUse.superInvoke( |
| method, elementMap.getCallStructure(arguments), typeArguments)); |
| } else { |
| impactBuilder.registerStaticUse(new StaticUse.superInvoke( |
| elementMap.getSuperNoSuchMethod(currentMember.enclosingClass), |
| CallStructure.ONE_ARG)); |
| impactBuilder.registerFeature(Feature.SUPER_NO_SUCH_METHOD); |
| } |
| } |
| |
| @override |
| void handleDirectMethodInvocation( |
| ir.DirectMethodInvocation node, |
| ir.DartType receiverType, |
| ArgumentTypes argumentTypes, |
| ir.DartType returnType) { |
| List<DartType> typeArguments = _getTypeArguments(node.arguments); |
| MemberEntity member = elementMap.getMember(node.target); |
| // TODO(johnniwinther): Restrict the dynamic use to only match the known |
| // target. |
| // TODO(johnniwinther): Restrict this to subclasses? |
| Object constraint = new StrongModeConstraint( |
| commonElements, _nativeBasicData, member.enclosingClass); |
| impactBuilder.registerDynamicUse(new ConstrainedDynamicUse( |
| new Selector.call( |
| member.memberName, elementMap.getCallStructure(node.arguments)), |
| constraint, |
| typeArguments)); |
| } |
| |
| @override |
| void handleSuperMethodInvocation(ir.SuperMethodInvocation node, |
| ArgumentTypes argumentTypes, ir.DartType returnType) { |
| // TODO(johnniwinther): Should we support this or always use the |
| // [MixinFullResolution] transformer? |
| handleSuperInvocation(node.name, node.arguments); |
| } |
| |
| void handleSuperGet(ir.Name name, ir.Member target) { |
| MemberEntity member = |
| elementMap.getSuperMember(currentMember, name, setter: false); |
| if (member != null) { |
| if (member.isFunction) { |
| impactBuilder.registerStaticUse(new StaticUse.superTearOff(member)); |
| } else { |
| impactBuilder.registerStaticUse(new StaticUse.superGet(member)); |
| } |
| } else { |
| impactBuilder.registerStaticUse(new StaticUse.superInvoke( |
| elementMap.getSuperNoSuchMethod(currentMember.enclosingClass), |
| CallStructure.ONE_ARG)); |
| impactBuilder.registerFeature(Feature.SUPER_NO_SUCH_METHOD); |
| } |
| } |
| |
| @override |
| void handleDirectPropertyGet(ir.DirectPropertyGet node, |
| ir.DartType receiverType, ir.DartType resultType) { |
| // TODO(johnniwinther): Restrict the dynamic use to only match the known |
| // target. |
| impactBuilder.registerDynamicUse(new DynamicUse( |
| new Selector.getter(elementMap.getMember(node.target).memberName))); |
| } |
| |
| @override |
| void handleSuperPropertyGet( |
| ir.SuperPropertyGet node, ir.DartType resultType) { |
| handleSuperGet(node.name, node.interfaceTarget); |
| } |
| |
| void handleSuperSet(ir.Name name, ir.Node target, ir.Node value) { |
| MemberEntity member = |
| elementMap.getSuperMember(currentMember, name, setter: true); |
| if (member != null) { |
| if (member.isField) { |
| impactBuilder.registerStaticUse(new StaticUse.superFieldSet(member)); |
| } else { |
| impactBuilder.registerStaticUse(new StaticUse.superSetterSet(member)); |
| } |
| } else { |
| impactBuilder.registerStaticUse(new StaticUse.superInvoke( |
| elementMap.getSuperNoSuchMethod(currentMember.enclosingClass), |
| CallStructure.ONE_ARG)); |
| impactBuilder.registerFeature(Feature.SUPER_NO_SUCH_METHOD); |
| } |
| } |
| |
| @override |
| void handleDirectPropertySet(ir.DirectPropertySet node, |
| ir.DartType receiverType, ir.DartType valueType) { |
| // TODO(johnniwinther): Restrict the dynamic use to only match the known |
| // target. |
| impactBuilder.registerDynamicUse(new DynamicUse( |
| new Selector.setter(elementMap.getMember(node.target).memberName))); |
| } |
| |
| @override |
| void handleSuperPropertySet(ir.SuperPropertySet node, ir.DartType valueType) { |
| handleSuperSet(node.name, node.interfaceTarget, node.value); |
| } |
| |
| @override |
| void handleMethodInvocation( |
| ir.MethodInvocation node, |
| ir.DartType receiverType, |
| ArgumentTypes argumentTypes, |
| ir.DartType returnType) { |
| Selector selector = elementMap.getSelector(node); |
| List<DartType> typeArguments = _getTypeArguments(node.arguments); |
| ir.Expression receiver = node.receiver; |
| if (receiver is ir.VariableGet && |
| receiver.variable.isFinal && |
| receiver.variable.parent is ir.FunctionDeclaration) { |
| Local localFunction = |
| elementMap.getLocalFunction(receiver.variable.parent); |
| // Invocation of a local function. No need for dynamic use, but |
| // we need to track the type arguments. |
| impactBuilder.registerStaticUse(new StaticUse.closureCall( |
| localFunction, selector.callStructure, typeArguments)); |
| // TODO(johnniwinther): Yet, alas, we need the dynamic use for now. Remove |
| // this when kernel adds an `isFunctionCall` flag to |
| // [ir.MethodInvocation]. |
| impactBuilder.registerDynamicUse( |
| new ConstrainedDynamicUse(selector, null, typeArguments)); |
| } else { |
| ClassRelation relation = receiver is ir.ThisExpression |
| ? ClassRelation.thisExpression |
| : ClassRelation.subtype; |
| DartType receiverDartType = elementMap.getDartType(receiverType); |
| Object constraint; |
| if (receiverDartType is InterfaceType) { |
| constraint = new StrongModeConstraint(commonElements, _nativeBasicData, |
| receiverDartType.element, relation); |
| } |
| ir.Member interfaceTarget = node.interfaceTarget; |
| if (interfaceTarget == null) { |
| // TODO(johnniwinther): Avoid treating a known function call as a |
| // dynamic call when CFE provides a way to distinguish the two. |
| impactBuilder.registerDynamicUse( |
| new ConstrainedDynamicUse(selector, constraint, typeArguments)); |
| if (operatorFromString(node.name.name) == null && |
| receiverDartType.isDynamic) { |
| // We might implicitly call a getter that returns a function. |
| impactBuilder.registerDynamicUse(new ConstrainedDynamicUse( |
| selector.toCallSelector(), null, typeArguments)); |
| } |
| } else { |
| if (interfaceTarget is ir.Field || |
| interfaceTarget is ir.Procedure && |
| interfaceTarget.kind == ir.ProcedureKind.Getter) { |
| impactBuilder.registerDynamicUse( |
| new ConstrainedDynamicUse(selector, constraint, typeArguments)); |
| // An `o.foo()` invocation is (potentially) an `o.foo.call()` |
| // invocation. |
| Object getterConstraint; |
| if (interfaceTarget != null) { |
| DartType receiverType = |
| elementMap.getDartType(interfaceTarget.getterType); |
| if (receiverType is InterfaceType) { |
| getterConstraint = new StrongModeConstraint( |
| commonElements, _nativeBasicData, receiverType.element); |
| } |
| } |
| |
| impactBuilder.registerDynamicUse(new ConstrainedDynamicUse( |
| selector.toCallSelector(), getterConstraint, typeArguments)); |
| } else { |
| impactBuilder.registerDynamicUse( |
| new ConstrainedDynamicUse(selector, constraint, typeArguments)); |
| } |
| } |
| } |
| } |
| |
| @override |
| void handlePropertyGet( |
| ir.PropertyGet node, ir.DartType receiverType, ir.DartType resultType) { |
| Object constraint; |
| DartType receiverDartType = elementMap.getDartType(receiverType); |
| if (receiverDartType is InterfaceType) { |
| ClassRelation relation = node.receiver is ir.ThisExpression |
| ? ClassRelation.thisExpression |
| : ClassRelation.subtype; |
| constraint = new StrongModeConstraint( |
| commonElements, _nativeBasicData, receiverDartType.element, relation); |
| } |
| impactBuilder.registerDynamicUse(new ConstrainedDynamicUse( |
| new Selector.getter(elementMap.getName(node.name)), |
| constraint, const <DartType>[])); |
| |
| if (node.name.name == Identifiers.runtimeType_) { |
| RuntimeTypeUse runtimeTypeUse = computeRuntimeTypeUse(elementMap, node); |
| if (_options.omitImplicitChecks) { |
| switch (runtimeTypeUse.kind) { |
| case RuntimeTypeUseKind.string: |
| if (!_options.laxRuntimeTypeToString) { |
| if (runtimeTypeUse.receiverType == commonElements.objectType) { |
| reporter.reportHintMessage(computeSourceSpanFromTreeNode(node), |
| MessageKind.RUNTIME_TYPE_TO_STRING_OBJECT); |
| } else { |
| reporter.reportHintMessage( |
| computeSourceSpanFromTreeNode(node), |
| MessageKind.RUNTIME_TYPE_TO_STRING_SUBTYPE, |
| {'receiverType': '${runtimeTypeUse.receiverType}.'}); |
| } |
| } |
| break; |
| case RuntimeTypeUseKind.equals: |
| case RuntimeTypeUseKind.unknown: |
| break; |
| } |
| } |
| impactBuilder.registerRuntimeTypeUse(runtimeTypeUse); |
| } |
| } |
| |
| @override |
| void handlePropertySet( |
| ir.PropertySet node, ir.DartType receiverType, ir.DartType valueType) { |
| Object constraint; |
| DartType receiverDartType = elementMap.getDartType(receiverType); |
| if (receiverDartType is InterfaceType) { |
| ClassRelation relation = node.receiver is ir.ThisExpression |
| ? ClassRelation.thisExpression |
| : ClassRelation.subtype; |
| constraint = new StrongModeConstraint( |
| commonElements, _nativeBasicData, receiverDartType.element, relation); |
| } |
| impactBuilder.registerDynamicUse(new ConstrainedDynamicUse( |
| new Selector.setter(elementMap.getName(node.name)), |
| constraint, const <DartType>[])); |
| } |
| |
| @override |
| void handleAssertStatement(ir.AssertStatement node) { |
| impactBuilder.registerFeature( |
| node.message != null ? Feature.ASSERT_WITH_MESSAGE : Feature.ASSERT); |
| } |
| |
| @override |
| void handleInstantiation(ir.Instantiation node, |
| ir.FunctionType expressionType, ir.DartType resultType) { |
| // TODO(johnniwinther): Track which arities are used in instantiation. |
| impactBuilder.registerInstantiation(new GenericInstantiation( |
| elementMap.getDartType(expressionType), |
| node.typeArguments.map(elementMap.getDartType).toList())); |
| } |
| |
| @override |
| void handleStringConcatenation(ir.StringConcatenation node) { |
| impactBuilder.registerFeature(Feature.STRING_INTERPOLATION); |
| impactBuilder.registerFeature(Feature.STRING_JUXTAPOSITION); |
| } |
| |
| @override |
| Null handleFunctionDeclaration(ir.FunctionDeclaration node) { |
| Local function = elementMap.getLocalFunction(node); |
| impactBuilder.registerStaticUse(new StaticUse.closure(function)); |
| handleAsyncMarker(node.function); |
| } |
| |
| @override |
| void handleFunctionExpression(ir.FunctionExpression node) { |
| Local function = elementMap.getLocalFunction(node); |
| impactBuilder.registerStaticUse(new StaticUse.closure(function)); |
| handleAsyncMarker(node.function); |
| } |
| |
| @override |
| void handleVariableDeclaration(ir.VariableDeclaration node) { |
| if (node.initializer == null) { |
| impactBuilder.registerFeature(Feature.LOCAL_WITHOUT_INITIALIZER); |
| } |
| } |
| |
| @override |
| void handleIsExpression(ir.IsExpression node) { |
| impactBuilder.registerTypeUse( |
| new TypeUse.isCheck(elementMap.getDartType(node.type))); |
| } |
| |
| @override |
| void handleAsExpression(ir.AsExpression node, ir.DartType operandType) { |
| if (elementMap.typeEnvironment.isSubtypeOf(operandType, node.type)) { |
| // Skip unneeded casts. |
| return; |
| } |
| DartType type = elementMap.getDartType(node.type); |
| if (node.isTypeError) { |
| impactBuilder.registerTypeUse(new TypeUse.implicitCast(type)); |
| } else { |
| impactBuilder.registerTypeUse(new TypeUse.asCast(type)); |
| } |
| } |
| |
| @override |
| void handleThrow(ir.Throw node) { |
| impactBuilder.registerFeature(Feature.THROW_EXPRESSION); |
| } |
| |
| @override |
| void handleForInStatement(ir.ForInStatement node, ir.DartType iterableType) { |
| // TODO(johnniwinther): Use receiver constraints for the dynamic uses in |
| // strong mode. |
| if (node.isAsync) { |
| impactBuilder.registerFeature(Feature.ASYNC_FOR_IN); |
| impactBuilder.registerDynamicUse(new DynamicUse(Selectors.cancel)); |
| } else { |
| impactBuilder.registerFeature(Feature.SYNC_FOR_IN); |
| impactBuilder.registerDynamicUse(new DynamicUse(Selectors.iterator)); |
| } |
| impactBuilder.registerDynamicUse(new DynamicUse(Selectors.current)); |
| impactBuilder.registerDynamicUse(new DynamicUse(Selectors.moveNext)); |
| } |
| |
| @override |
| void handleCatch(ir.Catch node) { |
| impactBuilder.registerFeature(Feature.CATCH_STATEMENT); |
| if (node.stackTrace != null) { |
| impactBuilder.registerFeature(Feature.STACK_TRACE_IN_CATCH); |
| } |
| if (node.guard is! ir.DynamicType) { |
| impactBuilder.registerTypeUse( |
| new TypeUse.catchType(elementMap.getDartType(node.guard))); |
| } |
| } |
| |
| @override |
| void handleTypeLiteral(ir.TypeLiteral node) { |
| ImportEntity deferredImport = elementMap.getImport(getDeferredImport(node)); |
| impactBuilder.registerTypeUse(new TypeUse.typeLiteral( |
| elementMap.getDartType(node.type), deferredImport)); |
| if (node.type is ir.FunctionType) { |
| ir.FunctionType functionType = node.type; |
| assert(functionType.typedef != null); |
| // TODO(johnniwinther): Can we avoid the typedef type altogether? |
| // We need to ensure that the typedef is live. |
| elementMap.getTypedefType(functionType.typedef); |
| } |
| } |
| |
| @override |
| void handleFieldInitializer(ir.FieldInitializer node) { |
| impactBuilder.registerStaticUse( |
| new StaticUse.fieldInit(elementMap.getField(node.field))); |
| } |
| |
| @override |
| void handleRedirectingInitializer( |
| ir.RedirectingInitializer node, ArgumentTypes argumentTypes) { |
| ConstructorEntity target = elementMap.getConstructor(node.target); |
| impactBuilder.registerStaticUse(new StaticUse.superConstructorInvoke( |
| target, elementMap.getCallStructure(node.arguments))); |
| } |
| |
| @override |
| void handleLoadLibrary(ir.LoadLibrary node) { |
| impactBuilder.registerStaticUse(new StaticUse.staticInvoke( |
| commonElements.loadDeferredLibrary, CallStructure.ONE_ARG)); |
| impactBuilder.registerFeature(Feature.LOAD_LIBRARY); |
| } |
| |
| @override |
| void handleSwitchStatement(ir.SwitchStatement node) { |
| // TODO(32557): Remove this when issue 32557 is fixed. |
| ir.TreeNode firstCase; |
| DartType firstCaseType; |
| DiagnosticMessage error; |
| List<DiagnosticMessage> infos = <DiagnosticMessage>[]; |
| |
| bool overridesEquals(InterfaceType type) { |
| if (type == commonElements.symbolImplementationType) { |
| // Treat symbol constants as if Symbol doesn't override `==`. |
| return false; |
| } |
| ClassEntity cls = type.element; |
| while (cls != null) { |
| MemberEntity member = |
| elementMap.elementEnvironment.lookupClassMember(cls, '=='); |
| if (member.isAbstract) { |
| cls = elementMap.elementEnvironment.getSuperClass(cls); |
| } else { |
| return member.enclosingClass != commonElements.objectClass; |
| } |
| } |
| return false; |
| } |
| |
| for (ir.SwitchCase switchCase in node.cases) { |
| for (ir.Expression expression in switchCase.expressions) { |
| ConstantValue value = elementMap.getConstantValue(expression); |
| DartType type = value.getType(elementMap.commonElements); |
| if (firstCaseType == null) { |
| firstCase = expression; |
| firstCaseType = type; |
| |
| // We only report the bad type on the first class element. All others |
| // get a "type differs" error. |
| if (type == commonElements.doubleType) { |
| reporter.reportErrorMessage( |
| computeSourceSpanFromTreeNode(expression), |
| MessageKind.SWITCH_CASE_VALUE_OVERRIDES_EQUALS, |
| {'type': "double"}); |
| } else if (type == commonElements.functionType) { |
| reporter.reportErrorMessage(computeSourceSpanFromTreeNode(node), |
| MessageKind.SWITCH_CASE_FORBIDDEN, {'type': "Function"}); |
| } else if (value.isObject && |
| type != commonElements.typeLiteralType && |
| overridesEquals(type)) { |
| reporter.reportErrorMessage( |
| computeSourceSpanFromTreeNode(firstCase), |
| MessageKind.SWITCH_CASE_VALUE_OVERRIDES_EQUALS, |
| {'type': type}); |
| } |
| } else { |
| if (type != firstCaseType) { |
| if (error == null) { |
| error = reporter.createMessage( |
| computeSourceSpanFromTreeNode(node), |
| MessageKind.SWITCH_CASE_TYPES_NOT_EQUAL, |
| {'type': firstCaseType}); |
| infos.add(reporter.createMessage( |
| computeSourceSpanFromTreeNode(firstCase), |
| MessageKind.SWITCH_CASE_TYPES_NOT_EQUAL_CASE, |
| {'type': firstCaseType})); |
| } |
| infos.add(reporter.createMessage( |
| computeSourceSpanFromTreeNode(expression), |
| MessageKind.SWITCH_CASE_TYPES_NOT_EQUAL_CASE, |
| {'type': type})); |
| } |
| } |
| } |
| } |
| if (error != null) { |
| reporter.reportError(error, infos); |
| } |
| } |
| } |
