| // Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| library services.dependencies.library; |
| |
| import 'package:analyzer/file_system/file_system.dart'; |
| import 'package:analyzer/src/generated/element.dart'; |
| import 'package:analyzer/src/generated/engine.dart'; |
| import 'package:analyzer/src/generated/source.dart'; |
| import 'package:analyzer/src/generated/source_io.dart'; |
| |
| class LibraryDependencyCollector { |
| final Set<LibraryElement> _visitedLibraries = new Set<LibraryElement>(); |
| final Set<String> _dependencies = new Set<String>(); |
| |
| final List<AnalysisContext> _contexts; |
| |
| LibraryDependencyCollector(this._contexts); |
| |
| Map<String, Map<String, List<String>>> calculatePackageMap( |
| Map<Folder, AnalysisContext> folderMap) { |
| Map<AnalysisContext, Folder> contextMap = _reverse(folderMap); |
| Map<String, Map<String, List<String>>> result = |
| new Map<String, Map<String, List<String>>>(); |
| for (AnalysisContext context in _contexts) { |
| Map<String, List<Folder>> packageMap = context.sourceFactory.packageMap; |
| if (packageMap != null) { |
| Map<String, List<String>> map = new Map<String, List<String>>(); |
| packageMap.forEach((String name, List<Folder> folders) => |
| map[name] = new List.from(folders.map((Folder f) => f.path))); |
| result[contextMap[context].path] = map; |
| } |
| } |
| return result; |
| } |
| |
| Set<String> collectLibraryDependencies() { |
| _contexts.forEach((AnalysisContext context) => context.librarySources |
| .forEach((Source source) => |
| _addDependencies(context.getLibraryElement(source)))); |
| return _dependencies; |
| } |
| |
| Map<AnalysisContext, Folder> _reverse(Map<Folder, AnalysisContext> map) { |
| Map<AnalysisContext, Folder> reverseMap = |
| new Map<AnalysisContext, Folder>(); |
| map.forEach((Folder f, AnalysisContext c) => reverseMap[c] = f); |
| return reverseMap; |
| } |
| |
| void _addDependencies(LibraryElement libraryElement) { |
| if (libraryElement == null) { |
| return; |
| } |
| if (_visitedLibraries.add(libraryElement)) { |
| for (CompilationUnitElement cu in libraryElement.units) { |
| String path = cu.source.fullName; |
| if (path != null) { |
| _dependencies.add(path); |
| } |
| } |
| libraryElement.imports.forEach( |
| (ImportElement import) => _addDependencies(import.importedLibrary)); |
| libraryElement.exports.forEach( |
| (ExportElement export) => _addDependencies(export.exportedLibrary)); |
| } |
| } |
| } |