The Tor Browser / file comparison
comparison: js/src/tests/ecma_6/Generators/delegating-yield-10.js
js/src/tests/ecma_6/Generators/delegating-yield-10.js
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
equal
deleted
inserted
replaced
| -1:000000000000 | 0:a29b47a4139b |
|---|---|
| 1 // Errors accessing next, done, or value don't cause an exception to be | |
| 2 // thrown into the iterator of a yield*. | |
| 3 | |
| 4 function* g(n) { for (var i=0; i<n; i++) yield i; } | |
| 5 function* delegate(iter) { return yield* iter; } | |
| 6 | |
| 7 var log = "", inner, outer; | |
| 8 | |
| 9 // That var is poisoooooon, p-poison poison... | |
| 10 var Poison = new Error; | |
| 11 | |
| 12 function log_calls(method) { | |
| 13 return function () { | |
| 14 log += "x" | |
| 15 return method.call(this); | |
| 16 } | |
| 17 } | |
| 18 | |
| 19 function poison(receiver, prop) { | |
| 20 Object.defineProperty(receiver, prop, { get: function () { throw Poison } }); | |
| 21 } | |
| 22 | |
| 23 // Poison inner.next. | |
| 24 inner = g(10); | |
| 25 outer = delegate(inner); | |
| 26 inner.throw = log_calls(inner.throw); | |
| 27 poison(inner, 'next') | |
| 28 assertThrowsValue(outer.next.bind(outer), Poison); | |
| 29 assertEq(log, ""); | |
| 30 | |
| 31 // Poison result value from inner. | |
| 32 inner = g(10); | |
| 33 outer = delegate(inner); | |
| 34 inner.next = function () { return { done: true, get value() { throw Poison} } }; | |
| 35 inner.throw = log_calls(inner.throw); | |
| 36 assertThrowsValue(outer.next.bind(outer), Poison); | |
| 37 assertEq(log, ""); | |
| 38 | |
| 39 // Poison result done from inner. | |
| 40 inner = g(10); | |
| 41 outer = delegate(inner); | |
| 42 inner.next = function () { return { get done() { throw Poison }, value: 42 } }; | |
| 43 inner.throw = log_calls(inner.throw); | |
| 44 assertThrowsValue(outer.next.bind(outer), Poison); | |
| 45 assertEq(log, ""); | |
| 46 | |
| 47 // mischief managed. | |
| 48 if (typeof reportCompare == "function") | |
| 49 reportCompare(true, true); |
