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| 1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 (function() { | 5 (function() { |
| 6 | 6 |
| 7 "use strict"; | 7 "use strict"; |
| 8 | 8 |
| 9 %CheckIsBootstrapping(); | 9 %CheckIsBootstrapping(); |
| 10 | 10 |
| (...skipping 54 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 65 } | 65 } |
| 66 } | 66 } |
| 67 | 67 |
| 68 | 68 |
| 69 function GeneratorObjectIterator() { | 69 function GeneratorObjectIterator() { |
| 70 return this; | 70 return this; |
| 71 } | 71 } |
| 72 | 72 |
| 73 | 73 |
| 74 function GeneratorFunctionConstructor(arg1) { // length == 1 | 74 function GeneratorFunctionConstructor(arg1) { // length == 1 |
| 75 var source = NewFunctionString(arguments, 'function*'); | 75 var source = $newFunctionString(arguments, 'function*'); |
| 76 var global_proxy = %GlobalProxy(global); | 76 var global_proxy = %GlobalProxy(global); |
| 77 // Compile the string in the constructor and not a helper so that errors | 77 // Compile the string in the constructor and not a helper so that errors |
| 78 // appear to come from here. | 78 // appear to come from here. |
| 79 var f = %_CallFunction(global_proxy, %CompileString(source, true)); | 79 var f = %_CallFunction(global_proxy, %CompileString(source, true)); |
| 80 %FunctionMarkNameShouldPrintAsAnonymous(f); | 80 %FunctionMarkNameShouldPrintAsAnonymous(f); |
| 81 return f; | 81 return f; |
| 82 } | 82 } |
| 83 | 83 |
| 84 // ---------------------------------------------------------------------------- | 84 // ---------------------------------------------------------------------------- |
| 85 | 85 |
| 86 // Both Runtime_GeneratorNext and Runtime_GeneratorThrow are supported by | 86 // Both Runtime_GeneratorNext and Runtime_GeneratorThrow are supported by |
| 87 // neither Crankshaft nor TurboFan, disable optimization of wrappers here. | 87 // neither Crankshaft nor TurboFan, disable optimization of wrappers here. |
| 88 %NeverOptimizeFunction(GeneratorObjectNext); | 88 %NeverOptimizeFunction(GeneratorObjectNext); |
| 89 %NeverOptimizeFunction(GeneratorObjectThrow); | 89 %NeverOptimizeFunction(GeneratorObjectThrow); |
| 90 | 90 |
| 91 // Set up non-enumerable functions on the generator prototype object. | 91 // Set up non-enumerable functions on the generator prototype object. |
| 92 var GeneratorObjectPrototype = GeneratorFunctionPrototype.prototype; | 92 var GeneratorObjectPrototype = GeneratorFunctionPrototype.prototype; |
| 93 InstallFunctions(GeneratorObjectPrototype, | 93 $installFunctions(GeneratorObjectPrototype, |
| 94 DONT_ENUM, | 94 DONT_ENUM, |
| 95 ["next", GeneratorObjectNext, | 95 ["next", GeneratorObjectNext, |
| 96 "throw", GeneratorObjectThrow]); | 96 "throw", GeneratorObjectThrow]); |
| 97 | 97 |
| 98 SetFunctionName(GeneratorObjectIterator, symbolIterator); | 98 $setFunctionName(GeneratorObjectIterator, symbolIterator); |
| 99 %AddNamedProperty(GeneratorObjectPrototype, symbolIterator, | 99 %AddNamedProperty(GeneratorObjectPrototype, symbolIterator, |
| 100 GeneratorObjectIterator, DONT_ENUM | DONT_DELETE | READ_ONLY); | 100 GeneratorObjectIterator, DONT_ENUM | DONT_DELETE | READ_ONLY); |
| 101 %AddNamedProperty(GeneratorObjectPrototype, "constructor", | 101 %AddNamedProperty(GeneratorObjectPrototype, "constructor", |
| 102 GeneratorFunctionPrototype, DONT_ENUM | READ_ONLY); | 102 GeneratorFunctionPrototype, DONT_ENUM | READ_ONLY); |
| 103 %AddNamedProperty(GeneratorObjectPrototype, | 103 %AddNamedProperty(GeneratorObjectPrototype, |
| 104 symbolToStringTag, "Generator", DONT_ENUM | READ_ONLY); | 104 symbolToStringTag, "Generator", DONT_ENUM | READ_ONLY); |
| 105 %InternalSetPrototype(GeneratorFunctionPrototype, GlobalFunction.prototype); | 105 %InternalSetPrototype(GeneratorFunctionPrototype, GlobalFunction.prototype); |
| 106 %AddNamedProperty(GeneratorFunctionPrototype, | 106 %AddNamedProperty(GeneratorFunctionPrototype, |
| 107 symbolToStringTag, "GeneratorFunction", DONT_ENUM | READ_ONLY); | 107 symbolToStringTag, "GeneratorFunction", DONT_ENUM | READ_ONLY); |
| 108 %AddNamedProperty(GeneratorFunctionPrototype, "constructor", | 108 %AddNamedProperty(GeneratorFunctionPrototype, "constructor", |
| 109 GeneratorFunction, DONT_ENUM | READ_ONLY); | 109 GeneratorFunction, DONT_ENUM | READ_ONLY); |
| 110 %InternalSetPrototype(GeneratorFunction, GlobalFunction); | 110 %InternalSetPrototype(GeneratorFunction, GlobalFunction); |
| 111 %SetCode(GeneratorFunction, GeneratorFunctionConstructor); | 111 %SetCode(GeneratorFunction, GeneratorFunctionConstructor); |
| 112 | 112 |
| 113 })(); | 113 })(); |
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