| // 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:kernel/ast.dart' as ir; |
| |
| import '../common.dart'; |
| import '../common/names.dart'; |
| import '../common/resolution.dart'; |
| import '../common_elements.dart'; |
| import '../constants/expressions.dart'; |
| import '../constants/values.dart'; |
| import '../elements/entities.dart'; |
| import '../elements/types.dart'; |
| import '../kernel/element_map.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'; |
| |
| ResolutionImpact buildKernelImpact( |
| ir.Member member, |
| KernelToElementMapForImpact elementMap, |
| DiagnosticReporter reporter, |
| CompilerOptions options) { |
| KernelImpactBuilder builder = new KernelImpactBuilder( |
| elementMap, elementMap.getMember(member), reporter, options); |
| if (member is ir.Procedure) { |
| return builder.buildProcedure(member); |
| } else if (member is ir.Constructor) { |
| return builder.buildConstructor(member); |
| } else if (member is ir.Field) { |
| return builder.buildField(member); |
| } |
| throw new UnsupportedError("Unsupported member: $member"); |
| } |
| |
| class KernelImpactBuilder extends ir.Visitor { |
| final ResolutionWorldImpactBuilder impactBuilder; |
| final KernelToElementMapForImpact elementMap; |
| final DiagnosticReporter reporter; |
| final CompilerOptions _options; |
| final MemberEntity currentMember; |
| _ClassEnsurer classEnsurer; |
| |
| KernelImpactBuilder( |
| this.elementMap, this.currentMember, this.reporter, this._options) |
| : this.impactBuilder = |
| new ResolutionWorldImpactBuilder('${currentMember.name}') { |
| this.classEnsurer = new _ClassEnsurer(this, this.elementMap.types); |
| } |
| |
| CommonElements get commonElements => elementMap.commonElements; |
| |
| /// 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.CHECKED_MODE_CHECK: |
| if (!_options.strongMode) { |
| impactBuilder.registerTypeUse(new TypeUse.checkedModeCheck(type)); |
| } |
| break; |
| case TypeUseKind.PARAMETER_CHECK: |
| if (!_options.strongMode) { |
| impactBuilder.registerTypeUse(new TypeUse.checkedModeCheck(type)); |
| } else { |
| 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; |
| } |
| |
| void registerSeenClasses(ir.DartType irType) { |
| DartType type = elementMap.getDartType(irType); |
| classEnsurer.ensureClassesInType(type); |
| } |
| |
| /// Add checked-mode type use for the parameter type and constant for the |
| /// default value of [parameter]. |
| void handleParameter(ir.VariableDeclaration parameter) { |
| checkType(parameter.type, TypeUseKind.PARAMETER_CHECK); |
| registerSeenClasses(parameter.type); |
| visitNode(parameter.initializer); |
| } |
| |
| /// Add checked-mode type use for parameter and return types, and add |
| /// constants for default values. |
| void handleSignature(ir.FunctionNode node, {bool checkReturnType: true}) { |
| if (checkReturnType) { |
| checkType(node.returnType, TypeUseKind.CHECKED_MODE_CHECK); |
| } |
| registerSeenClasses(node.returnType); |
| node.positionalParameters.forEach(handleParameter); |
| node.namedParameters.forEach(handleParameter); |
| if (_options.strongMode) { |
| for (ir.TypeParameter parameter in node.typeParameters) { |
| checkType(parameter.bound, TypeUseKind.PARAMETER_CHECK); |
| } |
| } |
| } |
| |
| ResolutionImpact buildField(ir.Field field) { |
| checkType(field.type, TypeUseKind.PARAMETER_CHECK); |
| registerSeenClasses(field.type); |
| if (field.initializer != null) { |
| visitNode(field.initializer); |
| 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 = elementMap.nativeBasicData.isJsInteropMember(member); |
| impactBuilder.registerNativeData(elementMap |
| .getNativeBehaviorForFieldLoad(field, isJsInterop: isJsInterop)); |
| impactBuilder |
| .registerNativeData(elementMap.getNativeBehaviorForFieldStore(field)); |
| } |
| return impactBuilder; |
| } |
| |
| ResolutionImpact buildConstructor(ir.Constructor constructor) { |
| handleSignature(constructor.function, checkReturnType: false); |
| visitNodes(constructor.initializers); |
| visitNode(constructor.function.body); |
| if (constructor.isExternal && |
| !elementMap.isForeignLibrary(constructor.enclosingLibrary)) { |
| MemberEntity member = elementMap.getMember(constructor); |
| bool isJsInterop = elementMap.nativeBasicData.isJsInteropMember(member); |
| impactBuilder.registerNativeData(elementMap |
| .getNativeBehaviorForMethod(constructor, isJsInterop: isJsInterop)); |
| } |
| return impactBuilder; |
| } |
| |
| 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 = _options.startAsyncSynchronously |
| ? commonElements.asyncAwaitCompleterFactory |
| : commonElements.syncCompleterFactory; |
| 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: ${asyncMarker}"); |
| } |
| } |
| |
| ResolutionImpact buildProcedure(ir.Procedure procedure) { |
| handleSignature(procedure.function); |
| visitNode(procedure.function.body); |
| handleAsyncMarker(procedure.function); |
| if (procedure.isExternal && |
| !elementMap.isForeignLibrary(procedure.enclosingLibrary)) { |
| MemberEntity member = elementMap.getMember(procedure); |
| bool isJsInterop = elementMap.nativeBasicData.isJsInteropMember(member); |
| impactBuilder.registerNativeData(elementMap |
| .getNativeBehaviorForMethod(procedure, isJsInterop: isJsInterop)); |
| } |
| return impactBuilder; |
| } |
| |
| void visitNode(ir.Node node) => node?.accept(this); |
| |
| void visitNodes(Iterable<ir.Node> nodes) { |
| nodes.forEach(visitNode); |
| } |
| |
| @override |
| void visitBlock(ir.Block block) => visitNodes(block.statements); |
| |
| @override |
| void visitExpressionStatement(ir.ExpressionStatement exprStatement) { |
| visitNode(exprStatement.expression); |
| } |
| |
| @override |
| void visitReturnStatement(ir.ReturnStatement returnStatement) { |
| visitNode(returnStatement.expression); |
| } |
| |
| @override |
| void visitIfStatement(ir.IfStatement ifStatement) { |
| visitNode(ifStatement.condition); |
| visitNode(ifStatement.then); |
| visitNode(ifStatement.otherwise); |
| } |
| |
| @override |
| void visitIntLiteral(ir.IntLiteral literal) { |
| // Check that this value can be precisely represented as a double, and throw |
| // an error if not: |
| if (new BigInt.from(literal.value) != |
| new BigInt.from(literal.value.toDouble())) { |
| // TODO(efortuna): Switch to error message. |
| reporter.reportWarningMessage( |
| CURRENT_ELEMENT_SPANNABLE, MessageKind.GENERIC, { |
| 'text': 'The integer literal ' |
| '${new BigInt.from(literal.value)} cannot be represented' |
| ' exactly in JavaScript and will be rounded to ' |
| '${new BigInt.from(literal.value.toDouble())}. Use the rounded ' |
| 'value to avoid this warning.' |
| }); |
| } |
| |
| impactBuilder.registerConstantLiteral(new IntConstantExpression( |
| new BigInt.from(literal.value).toUnsigned(64))); |
| } |
| |
| @override |
| void visitDoubleLiteral(ir.DoubleLiteral literal) { |
| impactBuilder |
| .registerConstantLiteral(new DoubleConstantExpression(literal.value)); |
| } |
| |
| @override |
| void visitBoolLiteral(ir.BoolLiteral literal) { |
| impactBuilder |
| .registerConstantLiteral(new BoolConstantExpression(literal.value)); |
| } |
| |
| @override |
| void visitStringLiteral(ir.StringLiteral literal) { |
| impactBuilder |
| .registerConstantLiteral(new StringConstantExpression(literal.value)); |
| } |
| |
| @override |
| void visitSymbolLiteral(ir.SymbolLiteral literal) { |
| impactBuilder.registerConstSymbolName(literal.value); |
| } |
| |
| @override |
| void visitNullLiteral(ir.NullLiteral literal) { |
| impactBuilder.registerConstantLiteral(new NullConstantExpression()); |
| } |
| |
| @override |
| void visitListLiteral(ir.ListLiteral literal) { |
| visitNodes(literal.expressions); |
| DartType elementType = |
| checkType(literal.typeArgument, TypeUseKind.CHECKED_MODE_CHECK); |
| registerSeenClasses(literal.typeArgument); |
| |
| impactBuilder.registerListLiteral(new ListLiteralUse( |
| commonElements.listType(elementType), |
| isConstant: literal.isConst, |
| isEmpty: literal.expressions.isEmpty)); |
| } |
| |
| @override |
| void visitMapLiteral(ir.MapLiteral literal) { |
| visitNodes(literal.entries); |
| DartType keyType = |
| checkType(literal.keyType, TypeUseKind.CHECKED_MODE_CHECK); |
| DartType valueType = |
| checkType(literal.valueType, TypeUseKind.CHECKED_MODE_CHECK); |
| registerSeenClasses(literal.keyType); |
| registerSeenClasses(literal.valueType); |
| impactBuilder.registerMapLiteral(new MapLiteralUse( |
| commonElements.mapType(keyType, valueType), |
| isConstant: literal.isConst, |
| isEmpty: literal.entries.isEmpty)); |
| } |
| |
| @override |
| void visitMapEntry(ir.MapEntry entry) { |
| visitNode(entry.key); |
| visitNode(entry.value); |
| } |
| |
| @override |
| void visitConditionalExpression(ir.ConditionalExpression node) { |
| visitNode(node.condition); |
| visitNode(node.then); |
| visitNode(node.otherwise); |
| // Don't visit the static type. |
| } |
| |
| List<DartType> _visitArguments(ir.Arguments arguments) { |
| arguments.positional.forEach(visitNode); |
| arguments.named.forEach(visitNode); |
| if (arguments.types.isEmpty) return null; |
| return _options.strongMode |
| ? arguments.types.map(elementMap.getDartType).toList() |
| : const <DartType>[]; |
| } |
| |
| @override |
| void visitConstructorInvocation(ir.ConstructorInvocation node) { |
| handleNew(node, node.target, isConst: node.isConst); |
| } |
| |
| void handleNew(ir.InvocationExpression node, ir.Member target, |
| {bool isConst: false}) { |
| _visitArguments(node.arguments); |
| 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); |
| return; |
| } |
| |
| InterfaceType type = elementMap.createInterfaceType( |
| target.enclosingClass, node.arguments.types); |
| classEnsurer.ensureClassesInType(type); |
| CallStructure callStructure = elementMap.getCallStructure(node.arguments); |
| impactBuilder.registerStaticUse(isConst |
| ? new StaticUse.constConstructorInvoke(constructor, callStructure, type) |
| : new StaticUse.typedConstructorInvoke( |
| constructor, callStructure, type)); |
| 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 |
| void visitSuperInitializer(ir.SuperInitializer node) { |
| // 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); |
| _visitArguments(node.arguments); |
| impactBuilder.registerStaticUse(new StaticUse.superConstructorInvoke( |
| target, elementMap.getCallStructure(node.arguments))); |
| } |
| |
| @override |
| void visitStaticInvocation(ir.StaticInvocation node) { |
| 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); |
| if (_options.strongMode && |
| target == commonElements.extractTypeArguments) { |
| _handleExtractTypeArguments(node, target); |
| return; |
| } |
| List<DartType> typeArguments = _visitArguments(node.arguments); |
| impactBuilder.registerStaticUse(new StaticUse.staticInvoke( |
| target, elementMap.getCallStructure(node.arguments), typeArguments)); |
| } |
| 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) { |
| // 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. |
| // |
| List<DartType> typeArguments = _visitArguments(node.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 visitStaticGet(ir.StaticGet node) { |
| ir.Member target = node.target; |
| registerSeenClasses(target.getterType); |
| if (target is ir.Procedure && target.kind == ir.ProcedureKind.Method) { |
| FunctionEntity method = elementMap.getMethod(target); |
| impactBuilder.registerStaticUse(new StaticUse.staticTearOff(method)); |
| } else { |
| MemberEntity member = elementMap.getMember(target); |
| impactBuilder.registerStaticUse(new StaticUse.staticGet(member)); |
| } |
| } |
| |
| @override |
| void visitStaticSet(ir.StaticSet node) { |
| visitNode(node.value); |
| MemberEntity member = elementMap.getMember(node.target); |
| registerSeenClasses(node.target.setterType); |
| impactBuilder.registerStaticUse(new StaticUse.staticSet(member)); |
| } |
| |
| void handleSuperInvocation(ir.Name name, ir.Node target, ir.Node arguments) { |
| FunctionEntity method = |
| elementMap.getSuperMember(currentMember, name, target, setter: false); |
| _visitArguments(arguments); |
| if (method != null) { |
| impactBuilder.registerStaticUse(new StaticUse.superInvoke( |
| method, elementMap.getCallStructure(arguments))); |
| } else { |
| impactBuilder.registerStaticUse(new StaticUse.superInvoke( |
| elementMap.getSuperNoSuchMethod(currentMember.enclosingClass), |
| CallStructure.ONE_ARG)); |
| impactBuilder.registerFeature(Feature.SUPER_NO_SUCH_METHOD); |
| } |
| } |
| |
| @override |
| void visitDirectMethodInvocation(ir.DirectMethodInvocation node) { |
| List<DartType> typeArguments = _visitArguments(node.arguments); |
| // TODO(johnniwinther): Restrict the dynamic use to only match the known |
| // target. |
| Object constraint; |
| MemberEntity member = elementMap.getMember(node.target); |
| if (_options.strongMode && useStrongModeWorldStrategy) { |
| // TODO(johnniwinther): Restrict this to subclasses? |
| constraint = new StrongModeConstraint(member.enclosingClass); |
| } |
| impactBuilder.registerDynamicUse(new ConstrainedDynamicUse( |
| new Selector.call( |
| member.memberName, elementMap.getCallStructure(node.arguments)), |
| constraint, |
| typeArguments)); |
| } |
| |
| @override |
| void visitSuperMethodInvocation(ir.SuperMethodInvocation node) { |
| // TODO(johnniwinther): Should we support this or always use the |
| // [MixinFullResolution] transformer? |
| handleSuperInvocation(node.name, node.interfaceTarget, node.arguments); |
| } |
| |
| void handleSuperGet(ir.Name name, ir.Member target) { |
| MemberEntity member = |
| elementMap.getSuperMember(currentMember, name, target, 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 visitDirectPropertyGet(ir.DirectPropertyGet node) { |
| // 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 visitSuperPropertyGet(ir.SuperPropertyGet node) { |
| handleSuperGet(node.name, node.interfaceTarget); |
| } |
| |
| void handleSuperSet(ir.Name name, ir.Node target, ir.Node value) { |
| visitNode(value); |
| MemberEntity member = |
| elementMap.getSuperMember(currentMember, name, target, 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 visitDirectPropertySet(ir.DirectPropertySet node) { |
| visitNode(node.value); |
| // 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 visitSuperPropertySet(ir.SuperPropertySet node) { |
| handleSuperSet(node.name, node.interfaceTarget, node.value); |
| } |
| |
| @override |
| void visitMethodInvocation(ir.MethodInvocation node) { |
| Selector selector = elementMap.getSelector(node); |
| List<DartType> typeArguments = _visitArguments(node.arguments); |
| var 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. |
| if (_options.strongMode) { |
| // We need to track the type arguments. |
| impactBuilder.registerStaticUse(new StaticUse.closureCall( |
| localFunction, selector.callStructure, typeArguments)); |
| } |
| } else { |
| visitNode(node.receiver); |
| Object constraint; |
| if (_options.strongMode && useStrongModeWorldStrategy) { |
| DartType receiverType = elementMap.getStaticType(node.receiver); |
| if (receiverType is InterfaceType) { |
| constraint = new StrongModeConstraint(receiverType.element); |
| } |
| } |
| |
| impactBuilder.registerDynamicUse( |
| new ConstrainedDynamicUse(selector, constraint, typeArguments)); |
| } |
| } |
| |
| @override |
| void visitPropertyGet(ir.PropertyGet node) { |
| visitNode(node.receiver); |
| Object constraint; |
| if (_options.strongMode && useStrongModeWorldStrategy) { |
| DartType receiverType = elementMap.getStaticType(node.receiver); |
| if (receiverType is InterfaceType) { |
| constraint = new StrongModeConstraint(receiverType.element); |
| } |
| } |
| impactBuilder.registerDynamicUse(new ConstrainedDynamicUse( |
| new Selector.getter(elementMap.getName(node.name)), |
| constraint, const <DartType>[])); |
| } |
| |
| @override |
| void visitPropertySet(ir.PropertySet node) { |
| visitNode(node.receiver); |
| visitNode(node.value); |
| Object constraint; |
| if (_options.strongMode && useStrongModeWorldStrategy) { |
| DartType receiverType = elementMap.getStaticType(node.receiver); |
| if (receiverType is InterfaceType) { |
| constraint = new StrongModeConstraint(receiverType.element); |
| } |
| } |
| impactBuilder.registerDynamicUse(new ConstrainedDynamicUse( |
| new Selector.setter(elementMap.getName(node.name)), |
| constraint, const <DartType>[])); |
| } |
| |
| @override |
| void visitAssertStatement(ir.AssertStatement node) { |
| impactBuilder.registerFeature( |
| node.message != null ? Feature.ASSERT_WITH_MESSAGE : Feature.ASSERT); |
| visitNode(node.condition); |
| visitNode(node.message); |
| } |
| |
| @override |
| void visitInstantiation(ir.Instantiation node) { |
| // TODO(johnniwinther): Track which arities are used in instantiation. |
| impactBuilder.registerFeature(Feature.GENERIC_INSTANTIATION); |
| node.visitChildren(this); |
| } |
| |
| @override |
| void visitStringConcatenation(ir.StringConcatenation node) { |
| impactBuilder.registerFeature(Feature.STRING_INTERPOLATION); |
| impactBuilder.registerFeature(Feature.STRING_JUXTAPOSITION); |
| visitNodes(node.expressions); |
| } |
| |
| @override |
| void visitFunctionDeclaration(ir.FunctionDeclaration node) { |
| Local function = elementMap.getLocalFunction(node); |
| impactBuilder.registerStaticUse(new StaticUse.closure(function)); |
| handleSignature(node.function); |
| handleAsyncMarker(node.function); |
| visitNode(node.function.body); |
| } |
| |
| @override |
| void visitFunctionExpression(ir.FunctionExpression node) { |
| Local function = elementMap.getLocalFunction(node); |
| impactBuilder.registerStaticUse(new StaticUse.closure(function)); |
| handleSignature(node.function); |
| handleAsyncMarker(node.function); |
| visitNode(node.function.body); |
| } |
| |
| @override |
| void visitVariableDeclaration(ir.VariableDeclaration node) { |
| checkType(node.type, TypeUseKind.CHECKED_MODE_CHECK); |
| registerSeenClasses(node.type); |
| if (node.initializer != null) { |
| visitNode(node.initializer); |
| } else { |
| impactBuilder.registerFeature(Feature.LOCAL_WITHOUT_INITIALIZER); |
| } |
| } |
| |
| @override |
| void visitIsExpression(ir.IsExpression node) { |
| impactBuilder.registerTypeUse( |
| new TypeUse.isCheck(elementMap.getDartType(node.type))); |
| registerSeenClasses(node.type); |
| visitNode(node.operand); |
| } |
| |
| @override |
| void visitAsExpression(ir.AsExpression node) { |
| DartType type = elementMap.getDartType(node.type); |
| if (node.isTypeError) { |
| impactBuilder.registerTypeUse(new TypeUse.implicitCast(type)); |
| } else { |
| impactBuilder.registerTypeUse(new TypeUse.asCast(type)); |
| } |
| registerSeenClasses(node.type); |
| visitNode(node.operand); |
| } |
| |
| @override |
| void visitThrow(ir.Throw node) { |
| impactBuilder.registerFeature(Feature.THROW_EXPRESSION); |
| visitNode(node.expression); |
| } |
| |
| @override |
| void visitForInStatement(ir.ForInStatement node) { |
| visitNode(node.variable); |
| visitNode(node.iterable); |
| visitNode(node.body); |
| // 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 visitTryCatch(ir.TryCatch node) { |
| visitNode(node.body); |
| visitNodes(node.catches); |
| } |
| |
| @override |
| void visitCatch(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))); |
| } |
| visitNode(node.body); |
| } |
| |
| @override |
| void visitTryFinally(ir.TryFinally node) { |
| visitNode(node.body); |
| visitNode(node.finalizer); |
| } |
| |
| @override |
| void visitTypeLiteral(ir.TypeLiteral node) { |
| impactBuilder.registerTypeUse( |
| new TypeUse.typeLiteral(elementMap.getDartType(node.type))); |
| } |
| |
| @override |
| void visitFieldInitializer(ir.FieldInitializer node) { |
| impactBuilder.registerStaticUse( |
| new StaticUse.fieldInit(elementMap.getField(node.field))); |
| visitNode(node.value); |
| } |
| |
| @override |
| void visitRedirectingInitializer(ir.RedirectingInitializer node) { |
| _visitArguments(node.arguments); |
| ConstructorEntity target = elementMap.getConstructor(node.target); |
| impactBuilder.registerStaticUse(new StaticUse.superConstructorInvoke( |
| target, elementMap.getCallStructure(node.arguments))); |
| } |
| |
| @override |
| void visitLoadLibrary(ir.LoadLibrary node) { |
| impactBuilder.registerStaticUse(new StaticUse.staticInvoke( |
| commonElements.loadDeferredLibrary, CallStructure.ONE_ARG)); |
| impactBuilder.registerFeature(Feature.LOAD_LIBRARY); |
| } |
| |
| // TODO(johnniwinther): Make this throw and visit child nodes explicitly |
| // instead to ensure that we don't visit unwanted parts of the ir. |
| @override |
| void defaultNode(ir.Node node) => node.visitChildren(this); |
| } |
| |
| class _ClassEnsurer extends BaseDartTypeVisitor<dynamic, Null> { |
| final KernelImpactBuilder builder; |
| final DartTypes types; |
| final seenTypes = new Set<InterfaceType>(); |
| |
| _ClassEnsurer(this.builder, this.types); |
| |
| void ensureClassesInType(DartType type) { |
| seenTypes.clear(); |
| type.accept(this, null); |
| } |
| |
| @override |
| visitType(DartType type, _) {} |
| |
| @override |
| visitFunctionType(FunctionType type, _) { |
| type.returnType.accept(this, null); |
| type.parameterTypes.forEach((t) { |
| t.accept(this, null); |
| }); |
| type.optionalParameterTypes.forEach((t) { |
| t.accept(this, null); |
| }); |
| type.namedParameterTypes.forEach((t) { |
| t.accept(this, null); |
| }); |
| } |
| |
| @override |
| visitInterfaceType(InterfaceType type, _) { |
| if (!seenTypes.add(type)) { |
| return; |
| } |
| builder.impactBuilder.registerSeenClass(type.element); |
| type.typeArguments.forEach((t) { |
| t.accept(this, null); |
| }); |
| var supertype = types.getSupertype(type.element); |
| supertype?.accept(this, null); |
| } |
| |
| @override |
| visitTypedefType(TypedefType type, _) { |
| type.typeArguments.forEach((t) { |
| t.accept(this, null); |
| }); |
| } |
| } |
