diff options
Diffstat (limited to 'js/src/jit-test/tests/collections/iterator-noSuchMethod.js')
-rw-r--r-- | js/src/jit-test/tests/collections/iterator-noSuchMethod.js | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/collections/iterator-noSuchMethod.js b/js/src/jit-test/tests/collections/iterator-noSuchMethod.js new file mode 100644 index 000000000..f79d3fa31 --- /dev/null +++ b/js/src/jit-test/tests/collections/iterator-noSuchMethod.js @@ -0,0 +1,24 @@ +// __noSuchMethod__ is totally non-standard and evil, but in this one weird case +// below we don't actually use it. So this test is bog-standard ES6, not +// SpiderMonkey-specific. +// +// In ES6: +// Accessing 1[Symbol.iterator]() throws a TypeError calling |undefined|. +// In SpiderMonkey: +// Accessing 1[Symbol.iterator]() does *not* invoke __noSuchMethod__ looked up +// on 1 (or on an implicitly boxed 1), because 1 is a primitive value. +// SpiderMonkey then does exactly the ES6 thing here and throws a TypeError +// calling |undefined|. + +Object.prototype.__noSuchMethod__ = {}; + +try +{ + var [x] = 1; + throw new Error("didn't throw"); +} +catch (e) +{ + assertEq(e instanceof TypeError, true, + "expected TypeError, got " + e); +} |