| // 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/analysis/features.dart'; |
| import 'package:analyzer/dart/ast/ast.dart' as ast; |
| import 'package:analyzer/src/dart/ast/mixin_super_invoked_names.dart'; |
| import 'package:analyzer/src/dart/element/element.dart'; |
| import 'package:analyzer/src/dart/resolver/scope.dart' show LibraryScope; |
| import 'package:analyzer/src/generated/utilities_dart.dart'; |
| import 'package:analyzer/src/summary/format.dart'; |
| import 'package:analyzer/src/summary/idl.dart'; |
| import 'package:analyzer/src/summary2/combinator.dart'; |
| import 'package:analyzer/src/summary2/constructor_initializer_resolver.dart'; |
| import 'package:analyzer/src/summary2/default_value_resolver.dart'; |
| import 'package:analyzer/src/summary2/export.dart'; |
| import 'package:analyzer/src/summary2/lazy_ast.dart'; |
| import 'package:analyzer/src/summary2/link.dart'; |
| import 'package:analyzer/src/summary2/linked_bundle_context.dart'; |
| import 'package:analyzer/src/summary2/linked_unit_context.dart'; |
| import 'package:analyzer/src/summary2/metadata_resolver.dart'; |
| import 'package:analyzer/src/summary2/reference.dart'; |
| import 'package:analyzer/src/summary2/reference_resolver.dart'; |
| import 'package:analyzer/src/summary2/scope.dart'; |
| import 'package:analyzer/src/summary2/types_builder.dart'; |
| |
| class LibraryBuilder { |
| final Linker linker; |
| final Uri uri; |
| final Reference reference; |
| final LinkedNodeLibraryBuilder node; |
| |
| LinkedLibraryContext context; |
| |
| LibraryElementImpl element; |
| LibraryScope scope; |
| |
| /// Local declarations. |
| final Scope localScope = Scope.top(); |
| |
| /// The export scope of the library. |
| final Scope exportScope = Scope.top(); |
| |
| final List<Export> exporters = []; |
| |
| LibraryBuilder(this.linker, this.uri, this.reference, this.node); |
| |
| void addExporters() { |
| var unitContext = context.units[0]; |
| for (var directive in unitContext.unit_withDirectives.directives) { |
| if (directive is ast.ExportDirective) { |
| Uri uri; |
| try { |
| uri = _selectAbsoluteUri(directive); |
| if (uri == null) continue; |
| } on FormatException { |
| continue; |
| } |
| |
| var combinators = directive.combinators.map((node) { |
| if (node is ast.ShowCombinator) { |
| var nameList = node.shownNames.map((i) => i.name).toList(); |
| return Combinator.show(nameList); |
| } else if (node is ast.HideCombinator) { |
| var nameList = node.hiddenNames.map((i) => i.name).toList(); |
| return Combinator.hide(nameList); |
| } |
| return null; |
| }).toList(); |
| |
| var exported = linker.builders[uri]; |
| var export = Export(this, exported, combinators); |
| if (exported != null) { |
| exported.exporters.add(export); |
| } else { |
| var references = linker.elementFactory.exportsOfLibrary('$uri'); |
| for (var reference in references) { |
| var name = reference.name; |
| if (reference.isSetter) { |
| export.addToExportScope('$name=', reference); |
| } else { |
| export.addToExportScope(name, reference); |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| /// Add top-level declaration of the library units to the local scope. |
| void addLocalDeclarations() { |
| for (var unitContext in context.units) { |
| var unitRef = reference.getChild('@unit').getChild(unitContext.uriStr); |
| var classRef = unitRef.getChild('@class'); |
| var enumRef = unitRef.getChild('@enum'); |
| var extensionRef = unitRef.getChild('@extension'); |
| var functionRef = unitRef.getChild('@function'); |
| var mixinRef = unitRef.getChild('@mixin'); |
| var typeAliasRef = unitRef.getChild('@typeAlias'); |
| var getterRef = unitRef.getChild('@getter'); |
| var setterRef = unitRef.getChild('@setter'); |
| var variableRef = unitRef.getChild('@variable'); |
| var nextUnnamedExtensionId = 0; |
| for (var node in unitContext.unit.declarations) { |
| if (node is ast.ClassDeclaration) { |
| var name = node.name.name; |
| var reference = classRef.getChild(name); |
| reference.node ??= node; |
| localScope.declare(name, reference); |
| } else if (node is ast.ClassTypeAlias) { |
| var name = node.name.name; |
| var reference = classRef.getChild(name); |
| reference.node ??= node; |
| localScope.declare(name, reference); |
| } else if (node is ast.EnumDeclaration) { |
| var name = node.name.name; |
| var reference = enumRef.getChild(name); |
| reference.node ??= node; |
| localScope.declare(name, reference); |
| } else if (node is ast.ExtensionDeclaration) { |
| var name = node.name?.name; |
| var refName = name ?? 'extension-${nextUnnamedExtensionId++}'; |
| LazyExtensionDeclaration.get(node).setRefName(refName); |
| |
| var reference = extensionRef.getChild(refName); |
| reference.node ??= node; |
| |
| if (name != null) { |
| localScope.declare(name, reference); |
| } |
| } else if (node is ast.FunctionDeclaration) { |
| var name = node.name.name; |
| |
| Reference containerRef; |
| if (node.isGetter) { |
| containerRef = getterRef; |
| } else if (node.isSetter) { |
| containerRef = setterRef; |
| } else { |
| containerRef = functionRef; |
| } |
| |
| var reference = containerRef.getChild(name); |
| reference.node ??= node; |
| |
| if (node.isSetter) { |
| localScope.declare('$name=', reference); |
| } else { |
| localScope.declare(name, reference); |
| } |
| } else if (node is ast.FunctionTypeAlias) { |
| var name = node.name.name; |
| var reference = typeAliasRef.getChild(name); |
| reference.node ??= node; |
| |
| localScope.declare(name, reference); |
| } else if (node is ast.GenericTypeAlias) { |
| var name = node.name.name; |
| var reference = typeAliasRef.getChild(name); |
| reference.node = node; |
| |
| localScope.declare(name, reference); |
| } else if (node is ast.MixinDeclaration) { |
| var name = node.name.name; |
| var reference = mixinRef.getChild(name); |
| reference.node ??= node; |
| localScope.declare(name, reference); |
| } else if (node is ast.TopLevelVariableDeclaration) { |
| for (var variable in node.variables.variables) { |
| var name = variable.name.name; |
| |
| var reference = variableRef.getChild(name); |
| reference.node ??= node; |
| |
| var getter = getterRef.getChild(name); |
| localScope.declare(name, getter); |
| |
| if (!variable.isConst && !variable.isFinal) { |
| var setter = setterRef.getChild(name); |
| localScope.declare('$name=', setter); |
| } |
| } |
| } else { |
| // TODO(scheglov) implement |
| throw UnimplementedError('${node.runtimeType}'); |
| } |
| } |
| } |
| if ('$uri' == 'dart:core') { |
| localScope.declare('dynamic', reference.getChild('dynamic')); |
| localScope.declare('Never', reference.getChild('Never')); |
| } |
| } |
| |
| /// Return `true` if the export scope was modified. |
| bool addToExportScope(String name, Reference reference) { |
| if (name.startsWith('_')) return false; |
| if (reference.isPrefix) return false; |
| |
| var existing = exportScope.map[name]; |
| if (existing == reference) return false; |
| |
| // Ambiguous declaration detected. |
| if (existing != null) return false; |
| |
| exportScope.map[name] = reference; |
| return true; |
| } |
| |
| void buildElement() { |
| element = linker.elementFactory.libraryOfUri('$uri'); |
| scope = LibraryScope(element); |
| } |
| |
| void buildInitialExportScope() { |
| localScope.forEach((name, reference) { |
| addToExportScope(name, reference); |
| }); |
| } |
| |
| void collectMixinSuperInvokedNames() { |
| for (var unitContext in context.units) { |
| for (var declaration in unitContext.unit.declarations) { |
| if (declaration is ast.MixinDeclaration) { |
| var names = <String>{}; |
| var collector = MixinSuperInvokedNamesCollector(names); |
| for (var executable in declaration.members) { |
| if (executable is ast.MethodDeclaration) { |
| executable.body.accept(collector); |
| } |
| } |
| var lazy = LazyMixinDeclaration.get(declaration); |
| lazy.setSuperInvokedNames(names.toList()); |
| } |
| } |
| } |
| } |
| |
| void resolveConstructors() { |
| ConstructorInitializerResolver(linker, element).resolve(); |
| } |
| |
| void resolveDefaultValues() { |
| DefaultValueResolver(linker, element).resolve(); |
| } |
| |
| void resolveMetadata() { |
| for (CompilationUnitElementImpl unit in element.units) { |
| var resolver = MetadataResolver(linker, scope, unit); |
| unit.linkedNode.accept(resolver); |
| } |
| } |
| |
| void resolveTypes(NodesToBuildType nodesToBuildType) { |
| for (var unitContext in context.units) { |
| var unitRef = reference.getChild('@unit'); |
| var unitReference = unitRef.getChild(unitContext.uriStr); |
| var resolver = ReferenceResolver( |
| nodesToBuildType, |
| linker.elementFactory, |
| element, |
| unitReference, |
| unitContext.unit.featureSet.isEnabled(Feature.non_nullable), |
| scope, |
| ); |
| unitContext.unit.accept(resolver); |
| } |
| } |
| |
| void resolveUriDirectives() { |
| var unitContext = context.units[0]; |
| for (var directive in unitContext.unit.directives) { |
| if (directive is ast.NamespaceDirective) { |
| try { |
| var uri = _selectAbsoluteUri(directive); |
| if (uri != null) { |
| LazyDirective.setSelectedUri(directive, '$uri'); |
| } |
| } on FormatException { |
| // ignored |
| } |
| } |
| } |
| } |
| |
| void storeExportScope() { |
| var linkingBundleContext = linker.linkingBundleContext; |
| for (var reference in exportScope.map.values) { |
| var index = linkingBundleContext.indexOfReference(reference); |
| node.exports.add(index); |
| } |
| } |
| |
| Uri _selectAbsoluteUri(ast.NamespaceDirective directive) { |
| var relativeUriStr = _selectRelativeUri( |
| directive.configurations, |
| directive.uri.stringValue, |
| ); |
| if (relativeUriStr == null) { |
| return null; |
| } |
| var relativeUri = Uri.parse(relativeUriStr); |
| return resolveRelativeUri(this.uri, relativeUri); |
| } |
| |
| String _selectRelativeUri( |
| List<ast.Configuration> configurations, |
| String defaultUri, |
| ) { |
| for (var configuration in configurations) { |
| var name = configuration.name.components.join('.'); |
| var value = configuration.value?.stringValue ?? 'true'; |
| if (linker.declaredVariables.get(name) == value) { |
| return configuration.uri.stringValue; |
| } |
| } |
| return defaultUri; |
| } |
| |
| static void build(Linker linker, LinkInputLibrary inputLibrary) { |
| var libraryUri = inputLibrary.source.uri; |
| var libraryUriStr = '$libraryUri'; |
| var libraryReference = linker.rootReference.getChild(libraryUriStr); |
| |
| var libraryNode = LinkedNodeLibraryBuilder( |
| uriStr: libraryUriStr, |
| ); |
| |
| var definingUnit = inputLibrary.units[0].unit; |
| for (var directive in definingUnit.directives) { |
| if (directive is ast.LibraryDirective) { |
| var name = directive.name; |
| libraryNode.name = name.components.map((id) => id.name).join('.'); |
| libraryNode.nameOffset = name.offset; |
| libraryNode.nameLength = name.length; |
| break; |
| } |
| } |
| |
| var builder = LibraryBuilder( |
| linker, |
| libraryUri, |
| libraryReference, |
| libraryNode, |
| ); |
| linker.builders[builder.uri] = builder; |
| |
| builder.context = linker.bundleContext.addLinkingLibrary( |
| libraryUriStr, |
| libraryNode, |
| inputLibrary, |
| ); |
| } |
| } |
| |
| class UnitBuilder { |
| final Uri uri; |
| final LinkedUnitContext context; |
| final LinkedNode node; |
| |
| UnitBuilder(this.uri, this.context, this.node); |
| } |