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| 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. |
| 4 |
| 5 /** |
| 6 * A named, versioned, unit of code and resource reuse. |
| 7 */ |
| 8 class Package { |
| 9 /** |
| 10 * The name of the package. |
| 11 */ |
| 12 final String name; |
| 13 |
| 14 /** |
| 15 * The names of the packages that this package depends on. This is what is |
| 16 * specified in the pubspec when this package depends on another. |
| 17 */ |
| 18 // TODO(rnystrom): When packages are versioned and sourced, this will likely |
| 19 // be something more than just a string. |
| 20 final Collection<String> dependencies; |
| 21 |
| 22 /** |
| 23 * The cache where this package is contained. |
| 24 */ |
| 25 final PackageCache _cache; |
| 26 |
| 27 /** |
| 28 * Constructs a package. This should not be called directly. Instead, acquire |
| 29 * packages from [PackageCache]. |
| 30 */ |
| 31 Package._(this._cache, this.name, this.dependencies); |
| 32 |
| 33 /** |
| 34 * Reads and returns all of the packages this package depends on. |
| 35 */ |
| 36 Future<Collection<Package>> readDependencies() { |
| 37 return Futures.wait(dependencies.map((name) => _cache.find(name))); |
| 38 } |
| 39 } |
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