Linter Demo

Errors: 2

Warnings: 5

File: /home/fstrocco/Dart/dart/benchmark/linter/lib/src/project.dart

// 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. import 'dart:io'; import 'package:analyzer/src/generated/element.dart'; import 'package:analyzer/src/generated/engine.dart'; import 'package:analyzer/src/generated/resolver.dart'; import 'package:analyzer/src/generated/source.dart'; import 'package:linter/src/io.dart'; import 'package:linter/src/pub.dart'; import 'package:path/path.dart' as p; Pubspec _findAndParsePubspec(Directory root) { if (root.existsSync()) { var pubspec = root .listSync(followLinks: false) .firstWhere((f) => isPubspecFile(f), orElse: () => null); if (pubspec != null) { return new Pubspec.parse(pubspec.readAsStringSync(), sourceUrl: p.toUri(pubspec.path)); } } return null; } /// A semantic representation of a Dart project. /// /// Projects provide a semantic model of a Dart project based on the /// [pub package layout conventions] (https://www.dartlang.org/tools/pub/package-layout.html). /// This model allows clients to traverse project contents in a convenient and /// standardized way, access global information (such as whether elements are /// in the "public API") and resources that have special meanings in the /// context of pub package layout conventions. class DartProject { _ApiModel _apiModel; String _name; Pubspec _pubspec; /// Project root. final Directory root; /// Create a Dart project for the corresponding [context] and [sources]. /// If a [dir] is unspecified the current working directory will be /// used. DartProject(AnalysisContext context, List<Source> sources, {Directory dir}) : root = dir != null ? dir : Directory.current { _pubspec = _findAndParsePubspec(root); _apiModel = new _ApiModel(context, sources, root); } /// The project's name. /// /// Project names correspond to the package name as specified in the project's /// [pubspec]. The pubspec is found relative to the [projectRoot]. If no /// pubspec can be found, the name defaults to the projectRoot basename. String get name { if (_name == null) { _name = _calculateName(); } return _name; } /// The project's pubspec. Pubspec get pubspec => _pubspec; /// Returns `true` if the given element is part of this project's public API. /// /// Public API elements are defined as all elements that are in the packages's /// `lib` directory, *less* those in `lib/src` (which are treated as private /// *implementation files*), plus elements having been explicitly exported /// via an `export` directive. bool isApi(Element element) => _apiModel.contains(element); String _calculateName() { if (pubspec != null) { var nameEntry = pubspec.name; if (nameEntry != null) { return nameEntry.value.text; } } return p.basename(root.path); } } /// An object that can be used to visit Dart project structure. abstract class ProjectVisitor<T> { T visit(DartProject project) => null; } /// Captures the project's API as defined by pub package layout standards. class _ApiModel { final AnalysisContext context; final List<Source> sources; final Directory root; final Set<LibraryElement> elements = new Set(); _ApiModel(this.context, this.sources, this.root) { _calculate(); } /// Return `true` if this element is part of the public API for this package. bool contains(Element element) { while (element != null) { if (!element.isPrivate && elements.contains(element)) { return true; } element = element.enclosingElement; } return false; } _calculate() { if (sources == null || sources.isEmpty) { return; } var libDir = root.path + '/lib'; var libSrcDir = libDir + '/src'; for (Source source in sources) { var path = source.uri.path; if (path.startsWith(libDir) && !path.startsWith(libSrcDir)) { var library = context.computeLibraryElement(source); var namespaceBuilder = new NamespaceBuilder(); var exports = namespaceBuilder.createExportNamespaceForLibrary(library); var public = namespaceBuilder.createPublicNamespaceForLibrary(library); elements.addAll(exports.definedNames.values); elements.addAll(public.definedNames.values); } } } }