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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/tests/ecma_6/Map/iterable.js | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'js/src/tests/ecma_6/Map/iterable.js')
-rw-r--r-- | js/src/tests/ecma_6/Map/iterable.js | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/js/src/tests/ecma_6/Map/iterable.js b/js/src/tests/ecma_6/Map/iterable.js new file mode 100644 index 000000000..cf6b7228a --- /dev/null +++ b/js/src/tests/ecma_6/Map/iterable.js @@ -0,0 +1,28 @@ +/* Any copyright is dedicated to the Public Domain. + * http://creativecommons.org/licenses/publicdomain/ */ + +let length; +let iterable = { + [Symbol.iterator]() { return this; }, + next() { length = arguments.length; return {done: true}; } +}; + +new Map(iterable); +// ensure no arguments are passed to next() during construction (Bug 1197095) +assertEq(length, 0); + +let typeofThis; +Object.defineProperty(Number.prototype, Symbol.iterator, { + value() { + "use strict"; + typeofThis = typeof this; + return { next() { return {done: true}; } }; + } +}); + +new Map(0); +// ensure that iterable objects retain their type (Bug 1197094) +assertEq(typeofThis, "number"); + +if (typeof reportCompare === "function") + reportCompare(0, 0); |