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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/non262/extensions/destructuring-for-inof-__proto__.js | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/js/src/tests/non262/extensions/destructuring-for-inof-__proto__.js b/js/src/tests/non262/extensions/destructuring-for-inof-__proto__.js new file mode 100644 index 0000000000..283dee3147 --- /dev/null +++ b/js/src/tests/non262/extensions/destructuring-for-inof-__proto__.js @@ -0,0 +1,85 @@ +/* + * Any copyright is dedicated to the Public Domain. + * http://creativecommons.org/licenses/publicdomain/ + */ + +var gTestfile = 'destructuring-for-inof-__proto__.js'; +var BUGNUMBER = 963641; +var summary = + "__proto__ should work in destructuring patterns as the targets of " + + "for-in/for-of loops"; + +print(BUGNUMBER + ": " + summary); + +/************** + * BEGIN TEST * + **************/ + +function objectWithProtoProperty(v) +{ + var obj = {}; + return Object.defineProperty(obj, "__proto__", + { + enumerable: true, + configurable: true, + writable: true, + value: v + }); +} + +function* objectWithProtoGenerator(v) +{ + yield objectWithProtoProperty(v); +} + +function* identityGenerator(v) +{ + yield v; +} + +for (var { __proto__: target } of objectWithProtoGenerator(null)) + assertEq(target, null); + +for ({ __proto__: target } of objectWithProtoGenerator("aacchhorrt")) + assertEq(target, "aacchhorrt"); + +for ({ __proto__: target } of identityGenerator(42)) + assertEq(target, Number.prototype); + +for (var { __proto__: target } in { prop: "kneedle" }) + assertEq(target, String.prototype); + +for ({ __proto__: target } in { prop: "snork" }) + assertEq(target, String.prototype); + +for ({ __proto__: target } in { prop: "ohia" }) + assertEq(target, String.prototype); + +function nested() +{ + for (var { __proto__: target } of objectWithProtoGenerator(null)) + assertEq(target, null); + + for ({ __proto__: target } of objectWithProtoGenerator("aacchhorrt")) + assertEq(target, "aacchhorrt"); + + for ({ __proto__: target } of identityGenerator(42)) + assertEq(target, Number.prototype); + + for (var { __proto__: target } in { prop: "kneedle" }) + assertEq(target, String.prototype); + + for ({ __proto__: target } in { prop: "snork" }) + assertEq(target, String.prototype); + + for ({ __proto__: target } in { prop: "ohia" }) + assertEq(target, String.prototype); +} +nested(); + +/******************************************************************************/ + +if (typeof reportCompare === "function") + reportCompare(true, true); + +print("Tests complete"); |