Linter Demo

Errors: 0

Warnings: 1

File: /home/fstrocco/Dart/dart/benchmark/devcompiler/lib/src/multi_package_resolver.dart

// Copyright (c) 2014, 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 dev_compiler.src.multi_package_resolver; import 'dart:io'; import 'package:analyzer/src/generated/java_io.dart'; import 'package:analyzer/src/generated/source.dart'; import 'package:analyzer/src/generated/source_io.dart'; import 'package:path/path.dart' show join; /// A package resolver that supports a non-standard package layout, where /// packages with dotted names are expanded to a hierarchy of directories, and /// packages can be found on one or more locations. class MultiPackageResolver extends UriResolver { final List<String> searchPaths; MultiPackageResolver(this.searchPaths); @override Source resolveAbsolute(Uri uri) { var path = _expandPath(uri); if (path == null) return null; var resolvedPath = _resolve(path); if (resolvedPath == null) return null; return new FileBasedSource.con2(uri, new JavaFile(resolvedPath)); } /// Resolve [path] by looking at each prefix in [searchPaths] and returning /// the first location where `prefix + path` exists. String _resolve(String path) { for (var prefix in searchPaths) { var resolvedPath = join(prefix, path); if (new File(resolvedPath).existsSync()) return resolvedPath; } return null; } /// Expand `uri.path`, replacing dots in the package name with slashes. String _expandPath(Uri uri) { if (uri.scheme != 'package') return null; var path = uri.path; var slashPos = path.indexOf('/'); var packagePath = path.substring(0, slashPos).replaceAll(".", "/"); var filePath = path.substring(slashPos + 1); return '${packagePath}/lib/${filePath}'; } }