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comparison: js/src/tests/ecma_6/Generators/delegating-yield-1.js
js/src/tests/ecma_6/Generators/delegating-yield-1.js
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:6fe26511c5d0 |
|---|---|
| 1 // This file was written by Andy Wingo <wingo@igalia.com> and originally | |
| 2 // contributed to V8 as generators-objects.js, available here: | |
| 3 // | |
| 4 // http://code.google.com/p/v8/source/browse/branches/bleeding_edge/test/mjsunit/harmony/generators-objects.js | |
| 5 | |
| 6 // Test that yield* re-yields received results without re-boxing. | |
| 7 | |
| 8 function results(results) { | |
| 9 var i = 0; | |
| 10 function next() { | |
| 11 return results[i++]; | |
| 12 } | |
| 13 var iter = { next: next } | |
| 14 var ret = {}; | |
| 15 ret[std_iterator] = function () { return iter; } | |
| 16 return ret; | |
| 17 } | |
| 18 | |
| 19 function* yield_results(expected) { | |
| 20 return yield* results(expected); | |
| 21 } | |
| 22 | |
| 23 function collect_results(iterable) { | |
| 24 var ret = []; | |
| 25 var result; | |
| 26 var iter = iterable[std_iterator](); | |
| 27 do { | |
| 28 result = iter.next(); | |
| 29 ret.push(result); | |
| 30 } while (!result.done); | |
| 31 return ret; | |
| 32 } | |
| 33 | |
| 34 // We have to put a full result for the end, because the return will re-box. | |
| 35 var expected = [{value: 1}, 13, "foo", {value: 34, done: true}]; | |
| 36 | |
| 37 // Sanity check. | |
| 38 assertDeepEq(expected, collect_results(results(expected))); | |
| 39 assertDeepEq(expected, collect_results(yield_results(expected))); | |
| 40 | |
| 41 if (typeof reportCompare == "function") | |
| 42 reportCompare(true, true); |
