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1 // Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 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. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 /* This library defines the representation of runtime types. | 5 /* This library defines the representation of runtime types. |
6 */ | 6 */ |
7 | 7 |
8 dart_library.library('dart/_types', null, /* Imports */[ | 8 dart_library.library('dart/_types', null, /* Imports */[ |
9 ], /* Lazy Imports */[ | 9 ], /* Lazy Imports */[ |
10 'dart/_utils', | 10 'dart/_utils', |
11 'dart/core', | 11 'dart/core', |
12 'dart/_classes', | 12 'dart/_classes', |
13 'dart/_rtti' | 13 'dart/_rtti' |
14 ], function(exports, dart_utils, core, classes, rtti) { | 14 ], function(exports, dart_utils, core, classes, rtti) { |
15 'use strict'; | 15 'use strict'; |
16 | 16 |
17 const getOwnPropertyNames = Object.getOwnPropertyNames; | 17 const getOwnPropertyNames = Object.getOwnPropertyNames; |
18 | 18 |
19 const assert = dart_utils.assert_; | 19 const assert = dart_utils.assert; |
20 | 20 |
21 /** | 21 /** |
22 * Types in dart are represented at runtime as follows. | 22 * Types in dart are represented at runtime as follows. |
23 * - Normal nominal types, produced from classes, are represented | 23 * - Normal nominal types, produced from classes, are represented |
24 * at runtime by the JS class of which they are an instance. | 24 * at runtime by the JS class of which they are an instance. |
25 * If the type is the result of instantiating a generic class, | 25 * If the type is the result of instantiating a generic class, |
26 * then the "classes" module manages the association between the | 26 * then the "classes" module manages the association between the |
27 * instantiated class and the original class declaration | 27 * instantiated class and the original class declaration |
28 * and the type arguments with which it was instantiated. This | 28 * and the type arguments with which it was instantiated. This |
29 * assocation can be queried via the "classes" module". | 29 * assocation can be queried via the "classes" module". |
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538 let typeArgs = classes.getGenericArgs(type); | 538 let typeArgs = classes.getGenericArgs(type); |
539 if (!typeArgs) return true; | 539 if (!typeArgs) return true; |
540 for (let t of typeArgs) { | 540 for (let t of typeArgs) { |
541 if (t != core.Object && t != dynamicR) return false; | 541 if (t != core.Object && t != dynamicR) return false; |
542 } | 542 } |
543 return true; | 543 return true; |
544 } | 544 } |
545 exports.isGroundType = isGroundType; | 545 exports.isGroundType = isGroundType; |
546 | 546 |
547 }); | 547 }); |
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