| // Copyright (c) 2019, 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:analyzer/dart/ast/ast.dart'; |
| import 'package:analyzer/dart/element/element.dart'; |
| import 'package:analyzer/dart/element/type.dart'; |
| import 'package:analyzer/src/dart/element/element.dart'; |
| import 'package:analyzer/src/dart/element/type.dart'; |
| import 'package:analyzer/src/generated/utilities_dart.dart'; |
| import 'package:analyzer/src/summary/idl.dart'; |
| import 'package:analyzer/src/summary2/ast_binary_reader.dart'; |
| import 'package:analyzer/src/summary2/lazy_ast.dart'; |
| import 'package:analyzer/src/summary2/linked_bundle_context.dart'; |
| import 'package:analyzer/src/summary2/tokens_context.dart'; |
| |
| /// The context of a unit - the context of the bundle, and the unit tokens. |
| class LinkedUnitContext { |
| final LinkedBundleContext bundleContext; |
| final LinkedLibraryContext libraryContext; |
| final int indexInLibrary; |
| final String uriStr; |
| final LinkedNodeUnit data; |
| final TokensContext tokensContext; |
| |
| AstBinaryReader _astReader; |
| |
| CompilationUnit _unit; |
| bool _hasDirectivesRead = false; |
| |
| /// Mapping from identifiers to real or synthetic type parameters. |
| /// |
| /// Real type parameters have corresponding [TypeParameter] nodes, and are |
| /// referenced from other AST nodes. |
| /// |
| /// Synthetic type parameters are added when [readType] begins reading a |
| /// [FunctionType], and removed when reading is done. |
| final Map<int, TypeParameterElement> _typeParameters = {}; |
| |
| int _nextSyntheticTypeParameterId = 0x10000; |
| |
| LinkedUnitContext(this.bundleContext, this.libraryContext, |
| this.indexInLibrary, this.uriStr, this.data, |
| {CompilationUnit unit}) |
| : tokensContext = data != null ? TokensContext(data.tokens) : null { |
| _astReader = AstBinaryReader(this); |
| _astReader.isLazy = unit == null; |
| |
| _unit = unit; |
| _hasDirectivesRead = _unit != null; |
| } |
| |
| CompilationUnit get unit => _unit; |
| |
| CompilationUnit get unit_withDeclarations { |
| if (_unit == null) { |
| _unit = _astReader.readNode(data.node); |
| } |
| return _unit; |
| } |
| |
| CompilationUnit get unit_withDirectives { |
| if (!_hasDirectivesRead) { |
| var directiveDataList = data.node.compilationUnit_directives; |
| for (var i = 0; i < directiveDataList.length; ++i) { |
| var directiveData = directiveDataList[i]; |
| _unit.directives[i] = _astReader.readNode(directiveData); |
| } |
| _hasDirectivesRead = true; |
| } |
| return _unit; |
| } |
| |
| /// Every [TypeParameter] node has [TypeParameterElement], which is created |
| /// during reading of this node. All type parameter nodes are read before |
| /// any nodes that reference them (bounds are read lazily later). |
| void addTypeParameter(int id, TypeParameter node) { |
| var element = TypeParameterElementImpl.forLinkedNode(null, null, node); |
| _typeParameters[id] = element; |
| node.name.staticElement = element; |
| } |
| |
| /// Return the [LibraryElement] referenced in the [node]. |
| LibraryElement directiveLibrary(UriBasedDirective node) { |
| var uriStr = LazyDirective.getSelectedUri(node); |
| if (uriStr == null || uriStr.isEmpty) return null; |
| return bundleContext.elementFactory.libraryOfUri(uriStr); |
| } |
| |
| int getCodeLength(AstNode node) { |
| if (node is ClassDeclaration) { |
| return LazyClassDeclaration.get(node).data.codeLength; |
| } else if (node is ClassTypeAlias) { |
| return LazyClassTypeAlias.get(node).data.codeLength; |
| } else if (node is ConstructorDeclaration) { |
| return LazyConstructorDeclaration.get(node).data.codeLength; |
| } else if (node is FormalParameter) { |
| return LazyFormalParameter.get(node).data.codeLength; |
| } else if (node is FunctionDeclaration) { |
| return LazyFunctionDeclaration.get(node).data.codeLength; |
| } else if (node is MethodDeclaration) { |
| return LazyMethodDeclaration.get(node).data.codeLength; |
| } else if (node is TypeParameter) { |
| return LazyTypeParameter.get(node).data.codeLength; |
| } else if (node is VariableDeclaration) { |
| return LazyVariableDeclaration.get(node).data.codeLength; |
| } |
| throw UnimplementedError('${node.runtimeType}'); |
| } |
| |
| int getCodeOffset(AstNode node) { |
| if (node is ClassDeclaration) { |
| return LazyClassDeclaration.get(node).data.codeOffset; |
| } else if (node is ClassTypeAlias) { |
| return LazyClassTypeAlias.get(node).data.codeOffset; |
| } else if (node is ConstructorDeclaration) { |
| return LazyConstructorDeclaration.get(node).data.codeOffset; |
| } else if (node is FormalParameter) { |
| return LazyFormalParameter.get(node).data.codeOffset; |
| } else if (node is FunctionDeclaration) { |
| return LazyFunctionDeclaration.get(node).data.codeOffset; |
| } else if (node is MethodDeclaration) { |
| return LazyMethodDeclaration.get(node).data.codeOffset; |
| } else if (node is TypeParameter) { |
| return LazyTypeParameter.get(node).data.codeOffset; |
| } else if (node is VariableDeclaration) { |
| return LazyVariableDeclaration.get(node).data.codeOffset; |
| } |
| throw UnimplementedError('${node.runtimeType}'); |
| } |
| |
| String getConstructorDeclarationName(LinkedNode node) { |
| var name = node.constructorDeclaration_name; |
| if (name != null) { |
| return getSimpleName(name); |
| } |
| return ''; |
| } |
| |
| List<ConstructorInitializer> getConstructorInitializers( |
| ConstructorDeclaration node, |
| ) { |
| LazyConstructorDeclaration.readInitializers(_astReader, node); |
| return node.initializers; |
| } |
| |
| ConstructorName getConstructorRedirected(ConstructorDeclaration node) { |
| LazyConstructorDeclaration.readRedirectedConstructor(_astReader, node); |
| return node.redirectedConstructor; |
| } |
| |
| Iterable<ConstructorDeclaration> getConstructors(AstNode node) sync* { |
| if (node is ClassOrMixinDeclaration) { |
| var members = _getClassOrMixinMembers(node); |
| for (var member in members) { |
| if (member is ConstructorDeclaration) { |
| yield member; |
| } |
| } |
| } |
| } |
| |
| int getDirectiveOffset(AstNode node) { |
| LazyDirective.readMetadata(_astReader, node); |
| return node.offset; |
| } |
| |
| Comment getDocumentationComment(AstNode node) { |
| if (node is ClassDeclaration) { |
| LazyClassDeclaration.readDocumentationComment(_astReader, node); |
| return node.documentationComment; |
| } else if (node is ClassTypeAlias) { |
| LazyClassTypeAlias.readDocumentationComment(_astReader, node); |
| return node.documentationComment; |
| } else if (node is ConstructorDeclaration) { |
| LazyConstructorDeclaration.readDocumentationComment(_astReader, node); |
| return node.documentationComment; |
| } else if (node is EnumConstantDeclaration) { |
| LazyEnumConstantDeclaration.readDocumentationComment(_astReader, node); |
| return node.documentationComment; |
| } else if (node is EnumDeclaration) { |
| LazyEnumDeclaration.readDocumentationComment(_astReader, node); |
| return node.documentationComment; |
| } else if (node is FunctionDeclaration) { |
| LazyFunctionDeclaration.readDocumentationComment(_astReader, node); |
| return node.documentationComment; |
| } else if (node is FunctionTypeAlias) { |
| LazyFunctionTypeAlias.readDocumentationComment(_astReader, node); |
| return node.documentationComment; |
| } else if (node is GenericTypeAlias) { |
| LazyGenericTypeAlias.readDocumentationComment(_astReader, node); |
| return node.documentationComment; |
| } else if (node is MethodDeclaration) { |
| LazyMethodDeclaration.readDocumentationComment(_astReader, node); |
| return node.documentationComment; |
| } else if (node is MixinDeclaration) { |
| LazyMixinDeclaration.readDocumentationComment(_astReader, node); |
| return node.documentationComment; |
| } else if (node is VariableDeclaration) { |
| var parent2 = node.parent.parent; |
| if (parent2 is FieldDeclaration) { |
| LazyFieldDeclaration.readDocumentationComment(_astReader, parent2); |
| return parent2.documentationComment; |
| } else if (parent2 is TopLevelVariableDeclaration) { |
| LazyTopLevelVariableDeclaration.readDocumentationComment( |
| _astReader, |
| parent2, |
| ); |
| return parent2.documentationComment; |
| } else { |
| throw UnimplementedError('${parent2.runtimeType}'); |
| } |
| } else { |
| throw UnimplementedError('${node.runtimeType}'); |
| } |
| } |
| |
| List<EnumConstantDeclaration> getEnumConstants(EnumDeclaration node) { |
| LazyEnumDeclaration.readConstants(_astReader, node); |
| return node.constants; |
| } |
| |
| String getFieldFormalParameterName(AstNode node) { |
| if (node is DefaultFormalParameter) { |
| return getFieldFormalParameterName(node.parameter); |
| } else if (node is FieldFormalParameter) { |
| return node.identifier.name; |
| } else { |
| throw StateError('${node.runtimeType}'); |
| } |
| } |
| |
| Iterable<VariableDeclaration> getFields(ClassOrMixinDeclaration node) sync* { |
| var members = _getClassOrMixinMembers(node); |
| for (var member in members) { |
| if (member is FieldDeclaration) { |
| for (var field in member.fields.variables) { |
| yield field; |
| } |
| } |
| } |
| } |
| |
| String getFormalParameterName(LinkedNode node) { |
| return getSimpleName(node.normalFormalParameter_identifier); |
| } |
| |
| List<FormalParameter> getFormalParameters(AstNode node) { |
| if (node is ConstructorDeclaration) { |
| LazyConstructorDeclaration.readFormalParameters(_astReader, node); |
| return node.parameters.parameters; |
| } else if (node is FunctionDeclaration) { |
| LazyFunctionDeclaration.readFunctionExpression(_astReader, node); |
| return getFormalParameters(node.functionExpression); |
| } else if (node is FunctionExpression) { |
| LazyFunctionExpression.readFormalParameters(_astReader, node); |
| return node.parameters?.parameters; |
| } else if (node is FormalParameter) { |
| if (node is DefaultFormalParameter) { |
| return getFormalParameters(node.parameter); |
| } else if (node is FieldFormalParameter) { |
| LazyFormalParameter.readFormalParameters(_astReader, node); |
| return node.parameters?.parameters; |
| } else if (node is FunctionTypedFormalParameter) { |
| LazyFormalParameter.readFormalParameters(_astReader, node); |
| return node.parameters.parameters; |
| } else { |
| return null; |
| } |
| } else if (node is FunctionTypeAlias) { |
| LazyFunctionTypeAlias.readFormalParameters(_astReader, node); |
| return node.parameters.parameters; |
| } else if (node is GenericFunctionType) { |
| LazyGenericFunctionType.readFormalParameters(_astReader, node); |
| return node.parameters.parameters; |
| } else if (node is MethodDeclaration) { |
| LazyMethodDeclaration.readFormalParameters(_astReader, node); |
| return node.parameters?.parameters; |
| } else { |
| throw UnimplementedError('${node.runtimeType}'); |
| } |
| // if (kind == LinkedNodeKind.constructorDeclaration) { |
| // parameterList = node.constructorDeclaration_parameters; |
| // } else if (kind == LinkedNodeKind.functionDeclaration) { |
| // return getFormalParameters(node.functionDeclaration_functionExpression); |
| // } else if (kind == LinkedNodeKind.functionExpression) { |
| // parameterList = node.functionExpression_formalParameters; |
| // } else if (kind == LinkedNodeKind.functionTypeAlias) { |
| // parameterList = node.functionTypeAlias_formalParameters; |
| // } else if (kind == LinkedNodeKind.genericFunctionType) { |
| // parameterList = node.genericFunctionType_formalParameters; |
| // } else if (kind == LinkedNodeKind.methodDeclaration) { |
| // parameterList = node.methodDeclaration_formalParameters; |
| // } else { |
| // throw UnimplementedError('$kind'); |
| // } |
| } |
| |
| GenericFunctionType getGeneticTypeAliasFunction(GenericTypeAlias node) { |
| LazyGenericTypeAlias.readFunctionType(_astReader, node); |
| return node.functionType; |
| } |
| |
| ImplementsClause getImplementsClause(AstNode node) { |
| if (node is ClassDeclaration) { |
| LazyClassDeclaration.readImplementsClause(_astReader, node); |
| return node.implementsClause; |
| } else if (node is ClassTypeAlias) { |
| LazyClassTypeAlias.readImplementsClause(_astReader, node); |
| return node.implementsClause; |
| } else if (node is MixinDeclaration) { |
| LazyMixinDeclaration.readImplementsClause(_astReader, node); |
| return node.implementsClause; |
| } else { |
| throw UnimplementedError('${node.runtimeType}'); |
| } |
| } |
| |
| InterfaceType getInterfaceType(LinkedNodeType linkedType) { |
| var type = readType(linkedType); |
| if (type is InterfaceType && !type.element.isEnum) { |
| return type; |
| } |
| return null; |
| } |
| |
| Comment getLibraryDocumentationComment(CompilationUnit unit) { |
| for (var directive in unit.directives) { |
| if (directive is LibraryDirective) { |
| return directive.documentationComment; |
| } |
| } |
| return null; |
| } |
| |
| List<Annotation> getLibraryMetadata(CompilationUnit unit) { |
| for (var directive in unit.directives) { |
| if (directive is LibraryDirective) { |
| return getMetadata(directive); |
| } |
| } |
| return const <Annotation>[]; |
| } |
| |
| List<Annotation> getMetadata(AstNode node) { |
| if (node is ClassDeclaration) { |
| LazyClassDeclaration.readMetadata(_astReader, node); |
| return node.metadata; |
| } else if (node is ClassTypeAlias) { |
| LazyClassTypeAlias.readMetadata(_astReader, node); |
| return node.metadata; |
| } else if (node is CompilationUnit) { |
| assert(node == _unit); |
| return _getPartDirectiveAnnotation(); |
| } else if (node is ConstructorDeclaration) { |
| LazyConstructorDeclaration.readMetadata(_astReader, node); |
| return node.metadata; |
| } else if (node is DefaultFormalParameter) { |
| return getMetadata(node.parameter); |
| } else if (node is Directive) { |
| LazyDirective.readMetadata(_astReader, node); |
| return node.metadata; |
| } else if (node is EnumConstantDeclaration) { |
| LazyEnumConstantDeclaration.readMetadata(_astReader, node); |
| return node.metadata; |
| } else if (node is EnumDeclaration) { |
| LazyEnumDeclaration.readMetadata(_astReader, node); |
| return node.metadata; |
| } else if (node is FormalParameter) { |
| LazyFormalParameter.readMetadata(_astReader, node); |
| return node.metadata; |
| } else if (node is FunctionDeclaration) { |
| LazyFunctionDeclaration.readMetadata(_astReader, node); |
| return node.metadata; |
| } else if (node is FunctionTypeAlias) { |
| LazyFunctionTypeAlias.readMetadata(_astReader, node); |
| return node.metadata; |
| } else if (node is GenericTypeAlias) { |
| LazyGenericTypeAlias.readMetadata(_astReader, node); |
| return node.metadata; |
| } else if (node is MethodDeclaration) { |
| LazyMethodDeclaration.readMetadata(_astReader, node); |
| return node.metadata; |
| } else if (node is MixinDeclaration) { |
| LazyMixinDeclaration.readMetadata(_astReader, node); |
| return node.metadata; |
| } else if (node is TypeParameter) { |
| LazyTypeParameter.readMetadata(_astReader, node); |
| return node.metadata; |
| } else if (node is VariableDeclaration) { |
| var parent2 = node.parent.parent; |
| if (parent2 is FieldDeclaration) { |
| LazyFieldDeclaration.readMetadata(_astReader, parent2); |
| return parent2.metadata; |
| } else if (parent2 is TopLevelVariableDeclaration) { |
| LazyTopLevelVariableDeclaration.readMetadata(_astReader, parent2); |
| return parent2.metadata; |
| } |
| } |
| // var kind = node.kind; |
| // if (kind == LinkedNodeKind.classDeclaration || |
| // kind == LinkedNodeKind.classTypeAlias || |
| // kind == LinkedNodeKind.constructorDeclaration || |
| // kind == LinkedNodeKind.enumConstantDeclaration || |
| // kind == LinkedNodeKind.enumDeclaration || |
| // kind == LinkedNodeKind.exportDirective || |
| // kind == LinkedNodeKind.functionDeclaration || |
| // kind == LinkedNodeKind.functionTypeAlias || |
| // kind == LinkedNodeKind.libraryDirective || |
| // kind == LinkedNodeKind.importDirective || |
| // kind == LinkedNodeKind.methodDeclaration || |
| // kind == LinkedNodeKind.mixinDeclaration || |
| // kind == LinkedNodeKind.partDirective || |
| // kind == LinkedNodeKind.partOfDirective || |
| // kind == LinkedNodeKind.variableDeclaration) { |
| // return node.annotatedNode_metadata; |
| // } |
| // if (kind == LinkedNodeKind.defaultFormalParameter) { |
| // return getMetadataOrEmpty(node.defaultFormalParameter_parameter); |
| // } |
| // if (kind == LinkedNodeKind.fieldFormalParameter || |
| // kind == LinkedNodeKind.functionTypedFormalParameter || |
| // kind == LinkedNodeKind.simpleFormalParameter) { |
| // return node.normalFormalParameter_metadata; |
| // } |
| return const <Annotation>[]; |
| } |
| |
| String getMethodName(LinkedNode node) { |
| return getSimpleName(node.methodDeclaration_name); |
| } |
| |
| Iterable<MethodDeclaration> getMethods(AstNode node) sync* { |
| if (node is ClassOrMixinDeclaration) { |
| var members = _getClassOrMixinMembers(node); |
| for (var member in members) { |
| if (member is MethodDeclaration) { |
| yield member; |
| } |
| } |
| } |
| } |
| |
| int getNameOffset(AstNode node) { |
| if (node is ConstructorDeclaration) { |
| if (node.name != null) { |
| return node.name.offset; |
| } else { |
| return node.returnType.offset; |
| } |
| } else if (node is EnumConstantDeclaration) { |
| return node.name.offset; |
| } else if (node is FormalParameter) { |
| return node.identifier?.offset ?? -1; |
| } else if (node is MethodDeclaration) { |
| return node.name.offset; |
| } else if (node is NamedCompilationUnitMember) { |
| return node.name.offset; |
| } else if (node is VariableDeclaration) { |
| return node.name.offset; |
| } |
| throw UnimplementedError('${node.runtimeType}'); |
| } |
| |
| OnClause getOnClause(MixinDeclaration node) { |
| LazyMixinDeclaration.readOnClause(_astReader, node); |
| return node.onClause; |
| } |
| |
| /// Return the actual return type for the [node] - explicit or inferred. |
| DartType getReturnType(AstNode node) { |
| if (node is FunctionDeclaration) { |
| return LazyFunctionDeclaration.getReturnType(_astReader, node); |
| } else if (node is FunctionTypeAlias) { |
| return LazyFunctionTypeAlias.getReturnType(_astReader, node); |
| } else if (node is GenericFunctionType) { |
| return LazyGenericFunctionType.getReturnType(_astReader, node); |
| } else if (node is MethodDeclaration) { |
| return LazyMethodDeclaration.getReturnType(_astReader, node); |
| } else { |
| throw UnimplementedError('${node.runtimeType}'); |
| } |
| } |
| |
| String getSimpleName(LinkedNode node) { |
| return getTokenLexeme(node.simpleIdentifier_token); |
| } |
| |
| List<String> getSimpleNameList(List<LinkedNode> nodeList) { |
| return nodeList.map(getSimpleName).toList(); |
| } |
| |
| int getSimpleOffset(LinkedNode node) { |
| return getTokenOffset(node.simpleIdentifier_token); |
| } |
| |
| String getStringContent(LinkedNode node) { |
| return node.simpleStringLiteral_value; |
| } |
| |
| TypeName getSuperclass(AstNode node) { |
| if (node is ClassDeclaration) { |
| LazyClassDeclaration.readExtendsClause(_astReader, node); |
| return node.extendsClause?.superclass; |
| } else if (node is ClassTypeAlias) { |
| LazyClassTypeAlias.readSuperclass(_astReader, node); |
| return node.superclass; |
| } else { |
| throw StateError('${node.runtimeType}'); |
| } |
| } |
| |
| String getTokenLexeme(int token) { |
| return tokensContext.lexeme(token); |
| } |
| |
| int getTokenOffset(int token) { |
| return tokensContext.offset(token); |
| } |
| |
| /// Return the actual type for the [node] - explicit or inferred. |
| DartType getType(AstNode node) { |
| if (node is DefaultFormalParameter) { |
| return getType(node.parameter); |
| } else if (node is FormalParameter) { |
| return LazyFormalParameter.getType(_astReader, node); |
| } else if (node is VariableDeclaration) { |
| return LazyVariableDeclaration.getType(_astReader, node); |
| } else { |
| throw UnimplementedError('${node.runtimeType}'); |
| } |
| } |
| |
| TopLevelInferenceError getTypeInferenceError(AstNode node) { |
| if (node is VariableDeclaration) { |
| return LazyVariableDeclaration.getTypeInferenceError(node); |
| } else { |
| return null; |
| } |
| } |
| |
| TypeAnnotation getTypeParameterBound(TypeParameter node) { |
| LazyTypeParameter.readBound(_astReader, node); |
| return node.bound; |
| } |
| |
| TypeParameterList getTypeParameters2(AstNode node) { |
| if (node is ClassDeclaration) { |
| return node.typeParameters; |
| } else if (node is ClassTypeAlias) { |
| return node.typeParameters; |
| } else if (node is ConstructorDeclaration) { |
| return null; |
| } else if (node is FunctionDeclaration) { |
| LazyFunctionDeclaration.readFunctionExpression(_astReader, node); |
| return getTypeParameters2(node.functionExpression); |
| } else if (node is FunctionExpression) { |
| return node.typeParameters; |
| } else if (node is FunctionTypeAlias) { |
| return node.typeParameters; |
| } else if (node is GenericFunctionType) { |
| return node.typeParameters; |
| } else if (node is GenericTypeAlias) { |
| return node.typeParameters; |
| } else if (node is MethodDeclaration) { |
| return node.typeParameters; |
| } else if (node is MixinDeclaration) { |
| return node.typeParameters; |
| } else { |
| throw UnimplementedError('${node.runtimeType}'); |
| } |
| } |
| |
| String getUnitMemberName(LinkedNode node) { |
| return getSimpleName(node.namedCompilationUnitMember_name); |
| } |
| |
| String getVariableName(LinkedNode node) { |
| return getSimpleName(node.variableDeclaration_name); |
| } |
| |
| WithClause getWithClause(AstNode node) { |
| if (node is ClassDeclaration) { |
| LazyClassDeclaration.readWithClause(_astReader, node); |
| return node.withClause; |
| } else if (node is ClassTypeAlias) { |
| LazyClassTypeAlias.readWithClause(_astReader, node); |
| return node.withClause; |
| } else { |
| throw UnimplementedError('${node.runtimeType}'); |
| } |
| } |
| |
| bool hasImplicitReturnType(AstNode node) { |
| if (node is MethodDeclaration) { |
| LazyMethodDeclaration.readReturnTypeNode(_astReader, node); |
| return node.returnType == null; |
| } |
| return false; |
| } |
| |
| bool hasImplicitType(AstNode node) { |
| if (node is VariableDeclaration) { |
| VariableDeclarationList parent = node.parent; |
| return parent.type == null; |
| } else if (node is SimpleFormalParameter) { |
| return node.type == null; |
| } |
| return false; |
| } |
| |
| bool hasOverrideInferenceDone(AstNode node) { |
| // Only nodes in the libraries being linked might be not inferred yet. |
| if (_astReader.isLazy) return true; |
| |
| return LazyAst.hasOverrideInferenceDone(node); |
| } |
| |
| bool isAbstract(AstNode node) { |
| if (node is ClassDeclaration) { |
| return node.abstractKeyword != null; |
| } else if (node is ClassTypeAlias) { |
| return node.abstractKeyword != null; |
| } else if (node is FunctionDeclaration) { |
| return false; |
| } else if (node is MethodDeclaration) { |
| return node.isAbstract; |
| } |
| throw UnimplementedError('${node.runtimeType}'); |
| } |
| |
| bool isAsynchronous(AstNode node) { |
| var body = _getFunctionBody(node); |
| return body.isAsynchronous; |
| } |
| |
| bool isAsyncKeyword(int token) { |
| return tokensContext.type(token) == UnlinkedTokenType.ASYNC; |
| } |
| |
| bool isConst(AstNode node) { |
| if (node is FormalParameter) { |
| return node.isConst; |
| } |
| if (node is VariableDeclaration) { |
| VariableDeclarationList parent = node.parent; |
| return parent.isConst; |
| } |
| // var kind = node.kind; |
| // if (kind == LinkedNodeKind.defaultFormalParameter) { |
| // return isConst(node.defaultFormalParameter_parameter); |
| // } |
| // if (kind == LinkedNodeKind.simpleFormalParameter) { |
| // return isConstKeyword(node.simpleFormalParameter_keyword); |
| // } |
| // if (kind == LinkedNodeKind.variableDeclaration) { |
| // return node.variableDeclaration_declaration.isConst; |
| // } |
| throw UnimplementedError('${node.runtimeType}'); |
| } |
| |
| bool isConstKeyword(int token) { |
| return tokensContext.type(token) == UnlinkedTokenType.CONST; |
| } |
| |
| bool isConstVariableList(LinkedNode node) { |
| return isConstKeyword(node.variableDeclarationList_keyword); |
| } |
| |
| bool isCovariant(AstNode node) { |
| if (node is FormalParameter) { |
| return node.covariantKeyword != null; |
| } else if (node is VariableDeclaration) { |
| var parent2 = node.parent.parent; |
| return parent2 is FieldDeclaration && parent2.covariantKeyword != null; |
| } |
| return false; |
| } |
| |
| bool isExternal(AstNode node) { |
| if (node is ConstructorDeclaration) { |
| return node.externalKeyword != null; |
| } else if (node is FunctionDeclaration) { |
| return node.externalKeyword != null; |
| } else if (node is MethodDeclaration) { |
| return node.externalKeyword != null; |
| } else { |
| throw UnimplementedError('${node.runtimeType}'); |
| } |
| } |
| |
| bool isFinal(AstNode node) { |
| if (node is EnumConstantDeclaration) { |
| return false; |
| } |
| if (node is VariableDeclaration) { |
| VariableDeclarationList parent = node.parent; |
| return parent.isFinal; |
| } |
| throw UnimplementedError('${node.runtimeType}'); |
| } |
| |
| bool isFinalKeyword(int token) { |
| return tokensContext.type(token) == UnlinkedTokenType.FINAL; |
| } |
| |
| bool isFinalVariableList(LinkedNode node) { |
| return isFinalKeyword(node.variableDeclarationList_keyword); |
| } |
| |
| bool isFunction(LinkedNode node) { |
| return node.kind == LinkedNodeKind.functionDeclaration; |
| } |
| |
| bool isGenerator(AstNode node) { |
| var body = _getFunctionBody(node); |
| return body.isGenerator; |
| } |
| |
| bool isGetter(AstNode node) { |
| if (node is FunctionDeclaration) { |
| return node.isGetter; |
| } else if (node is MethodDeclaration) { |
| return node.isGetter; |
| } else { |
| throw StateError('${node.runtimeType}'); |
| } |
| } |
| |
| bool isLibraryKeyword(int token) { |
| return tokensContext.type(token) == UnlinkedTokenType.LIBRARY; |
| } |
| |
| bool isMethod(LinkedNode node) { |
| return node.kind == LinkedNodeKind.methodDeclaration; |
| } |
| |
| bool isSetter(AstNode node) { |
| if (node is FunctionDeclaration) { |
| return node.isSetter; |
| } else if (node is MethodDeclaration) { |
| return node.isSetter; |
| } else { |
| throw StateError('${node.runtimeType}'); |
| } |
| } |
| |
| bool isSimplyBounded(AstNode node) { |
| return LazyAst.isSimplyBounded(node); |
| } |
| |
| bool isStatic(AstNode node) { |
| if (node is FunctionDeclaration) { |
| return true; |
| } else if (node is MethodDeclaration) { |
| return node.modifierKeyword != null; |
| } else if (node is VariableDeclaration) { |
| var parent2 = node.parent.parent; |
| return parent2 is FieldDeclaration && parent2.isStatic; |
| } |
| throw UnimplementedError('${node.runtimeType}'); |
| } |
| |
| bool isSyncKeyword(int token) { |
| return tokensContext.type(token) == UnlinkedTokenType.SYNC; |
| } |
| |
| Expression readInitializer(AstNode node) { |
| if (node is DefaultFormalParameter) { |
| LazyFormalParameter.readDefaultValue(_astReader, node); |
| return node.defaultValue; |
| } else if (node is VariableDeclaration) { |
| LazyVariableDeclaration.readInitializer(_astReader, node); |
| return node.initializer; |
| } else { |
| throw StateError('${node.runtimeType}'); |
| } |
| } |
| |
| AstNode readNode(LinkedNode linkedNode) { |
| return _astReader.readNode(linkedNode); |
| } |
| |
| DartType readType(LinkedNodeType linkedType) { |
| if (linkedType == null) return null; |
| |
| var kind = linkedType.kind; |
| if (kind == LinkedNodeTypeKind.bottom) { |
| return BottomTypeImpl.instance; |
| } else if (kind == LinkedNodeTypeKind.dynamic_) { |
| return DynamicTypeImpl.instance; |
| } else if (kind == LinkedNodeTypeKind.function) { |
| var typeParameterDataList = linkedType.functionTypeParameters; |
| |
| var typeParameters = <TypeParameterElement>[]; |
| for (var typeParameterData in typeParameterDataList) { |
| var element = TypeParameterElementImpl(typeParameterData.name, -1); |
| typeParameters.add(element); |
| _typeParameters[_nextSyntheticTypeParameterId++] = element; |
| } |
| |
| var returnType = readType(linkedType.functionReturnType); |
| var formalParameters = linkedType.functionFormalParameters.map((p) { |
| var type = readType(p.type); |
| var kind = _formalParameterKind(p.kind); |
| return ParameterElementImpl.synthetic(p.name, type, kind); |
| }).toList(); |
| |
| for (var i = 0; i < typeParameterDataList.length; ++i) { |
| _typeParameters.remove(--_nextSyntheticTypeParameterId); |
| } |
| |
| return FunctionTypeImpl.synthetic( |
| returnType, |
| typeParameters, |
| formalParameters, |
| ); |
| } else if (kind == LinkedNodeTypeKind.interface) { |
| var element = bundleContext.elementOfIndex(linkedType.interfaceClass); |
| return InterfaceTypeImpl.explicit( |
| element, |
| linkedType.interfaceTypeArguments.map(readType).toList(), |
| ); |
| } else if (kind == LinkedNodeTypeKind.typeParameter) { |
| var id = linkedType.typeParameterId; |
| var element = _typeParameters[id]; |
| assert(element != null); |
| return TypeParameterTypeImpl(element); |
| } else if (kind == LinkedNodeTypeKind.void_) { |
| return VoidTypeImpl.instance; |
| } else { |
| throw UnimplementedError('$kind'); |
| } |
| } |
| |
| void setOverrideInferenceDone(AstNode node) { |
| // TODO(scheglov) This assert fails, check how to avoid this. |
| // assert(!_astReader.isLazy); |
| LazyAst.setOverrideInferenceDone(node); |
| } |
| |
| void setReturnType(AstNode node, DartType type) { |
| LazyAst.setReturnType(node, type); |
| } |
| |
| void setVariableType(AstNode node, DartType type) { |
| LazyAst.setType(node, type); |
| } |
| |
| bool shouldBeConstFieldElement(AstNode node) { |
| if (node is VariableDeclaration) { |
| VariableDeclarationList variableList = node.parent; |
| if (variableList.isConst) return true; |
| |
| if (variableList.isFinal) { |
| ClassOrMixinDeclaration class_ = variableList.parent.parent; |
| for (var member in class_.members) { |
| if (member is ConstructorDeclaration && member.constKeyword != null) { |
| return true; |
| } |
| } |
| } |
| } |
| return false; |
| } |
| |
| Iterable<VariableDeclaration> topLevelVariables(CompilationUnit unit) sync* { |
| for (var declaration in unit.declarations) { |
| if (declaration is TopLevelVariableDeclaration) { |
| for (var variable in declaration.variables.variables) { |
| yield variable; |
| } |
| } |
| } |
| } |
| |
| ParameterKind _formalParameterKind(LinkedNodeFormalParameterKind kind) { |
| if (kind == LinkedNodeFormalParameterKind.optionalNamed) { |
| return ParameterKind.NAMED; |
| } else if (kind == LinkedNodeFormalParameterKind.optionalPositional) { |
| return ParameterKind.POSITIONAL; |
| } else if (kind == LinkedNodeFormalParameterKind.requiredNamed) { |
| return ParameterKind.NAMED_REQUIRED; |
| } |
| return ParameterKind.REQUIRED; |
| } |
| |
| List<ClassMember> _getClassOrMixinMembers(ClassOrMixinDeclaration node) { |
| if (node is ClassDeclaration) { |
| LazyClassDeclaration.readMembers(_astReader, node); |
| } else if (node is MixinDeclaration) { |
| LazyMixinDeclaration.readMembers(_astReader, node); |
| } else { |
| throw StateError('${node.runtimeType}'); |
| } |
| return node.members; |
| } |
| |
| FunctionBody _getFunctionBody(AstNode node) { |
| if (node is ConstructorDeclaration) { |
| LazyConstructorDeclaration.readBody(_astReader, node); |
| return node.body; |
| } else if (node is FunctionDeclaration) { |
| LazyFunctionDeclaration.readFunctionExpression(_astReader, node); |
| return _getFunctionBody(node.functionExpression); |
| } else if (node is FunctionExpression) { |
| LazyFunctionExpression.readBody(_astReader, node); |
| return node.body; |
| } else if (node is MethodDeclaration) { |
| LazyMethodDeclaration.readBody(_astReader, node); |
| return node.body; |
| } else { |
| throw UnimplementedError('${node.runtimeType}'); |
| } |
| } |
| |
| NodeList<Annotation> _getPartDirectiveAnnotation() { |
| if (indexInLibrary != 0) { |
| var definingContext = libraryContext.definingUnit; |
| var unit = definingContext.unit; |
| var partDirectiveIndex = 0; |
| for (var directive in unit.directives) { |
| if (directive is PartDirective) { |
| partDirectiveIndex++; |
| if (partDirectiveIndex == indexInLibrary) { |
| LazyDirective.readMetadata(definingContext._astReader, directive); |
| return directive.metadata; |
| } |
| } |
| } |
| } |
| throw StateError('Expected to find $indexInLibrary part directive.'); |
| } |
| |
| static List<LinkedNode> getTypeParameters(LinkedNode node) { |
| LinkedNode typeParameterList; |
| var kind = node.kind; |
| if (kind == LinkedNodeKind.classTypeAlias) { |
| typeParameterList = node.classTypeAlias_typeParameters; |
| } else if (kind == LinkedNodeKind.classDeclaration || |
| kind == LinkedNodeKind.mixinDeclaration) { |
| typeParameterList = node.classOrMixinDeclaration_typeParameters; |
| } else if (kind == LinkedNodeKind.constructorDeclaration) { |
| return const []; |
| } else if (kind == LinkedNodeKind.functionDeclaration) { |
| return getTypeParameters(node.functionDeclaration_functionExpression); |
| } else if (kind == LinkedNodeKind.functionExpression) { |
| typeParameterList = node.functionExpression_typeParameters; |
| } else if (kind == LinkedNodeKind.functionTypeAlias) { |
| typeParameterList = node.functionTypeAlias_typeParameters; |
| } else if (kind == LinkedNodeKind.genericFunctionType) { |
| typeParameterList = node.genericFunctionType_typeParameters; |
| } else if (kind == LinkedNodeKind.genericTypeAlias) { |
| typeParameterList = node.genericTypeAlias_typeParameters; |
| } else if (kind == LinkedNodeKind.methodDeclaration) { |
| typeParameterList = node.methodDeclaration_typeParameters; |
| } else { |
| throw UnimplementedError('$kind'); |
| } |
| return typeParameterList?.typeParameterList_typeParameters; |
| } |
| } |
