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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /js/src/jit-test/tests/collections/iterator-proto-1.js | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'js/src/jit-test/tests/collections/iterator-proto-1.js')
-rw-r--r-- | js/src/jit-test/tests/collections/iterator-proto-1.js | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/collections/iterator-proto-1.js b/js/src/jit-test/tests/collections/iterator-proto-1.js new file mode 100644 index 000000000..c9827a574 --- /dev/null +++ b/js/src/jit-test/tests/collections/iterator-proto-1.js @@ -0,0 +1,18 @@ +// All iterators of the same collection type share their immediate prototype. +// Those prototype objects in turn inherit directly from %IteratorPrototype%. + +load(libdir + "iteration.js"); + +// Get %IteratorPrototype%. +var iterProto = Object.getPrototypeOf(Object.getPrototypeOf([][Symbol.iterator]())); + +function test(obj0, obj1) { + var iter0 = obj0[Symbol.iterator](), iter1 = obj1[Symbol.iterator](); + var proto = Object.getPrototypeOf(iter0); + assertEq(Object.getPrototypeOf(iter1), proto); + assertEq(Object.getPrototypeOf(proto), iterProto); +} + +test([], [1]); +test(new Map(), new Map([[1, 1]])); +test(new Set(), new Set([1])); |