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1 // Copyright 2016 the V8 project authors. All rights reserved. | 1 // Copyright 2016 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 // Flags: --ignition-generators --harmony-do-expressions | 5 // Flags: --ignition-generators --harmony-do-expressions |
6 // Flags: --allow-natives-syntax | 6 // Flags: --allow-natives-syntax |
7 | 7 |
8 | 8 |
9 function MaybeOptimizeOrDeoptimize(f) { | 9 function MaybeOptimizeOrDeoptimize(f) { |
10 let x = Math.random(); // --random-seed makes this deterministic | 10 let x = Math.random(); // --random-seed makes this deterministic |
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631 while (true) { | 631 while (true) { |
632 if (true || false) yield 42; | 632 if (true || false) yield 42; |
633 continue; | 633 continue; |
634 } | 634 } |
635 } | 635 } |
636 g = foo(); | 636 g = foo(); |
637 assertEquals({value: 42, done: false}, Next(g)); | 637 assertEquals({value: 42, done: false}, Next(g)); |
638 assertEquals({value: 42, done: false}, Next(g)); | 638 assertEquals({value: 42, done: false}, Next(g)); |
639 assertEquals({value: 42, done: false}, Next(g)); | 639 assertEquals({value: 42, done: false}, Next(g)); |
640 } | 640 } |
| 641 |
| 642 { |
| 643 let foo = function*() { |
| 644 yield* (function*() { yield 42; }()); |
| 645 assertUnreachable(); |
| 646 } |
| 647 g = foo(); |
| 648 assertEquals({value: 42, done: false}, Next(g)); |
| 649 assertEquals({value: 23, done: true}, Return(g, 23)); |
| 650 } |
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