diff options
Diffstat (limited to 'js/src/jit-test/tests/for-of/iterclose-invalid-return.js')
-rw-r--r-- | js/src/jit-test/tests/for-of/iterclose-invalid-return.js | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/for-of/iterclose-invalid-return.js b/js/src/jit-test/tests/for-of/iterclose-invalid-return.js new file mode 100644 index 0000000000..bda448edc7 --- /dev/null +++ b/js/src/jit-test/tests/for-of/iterclose-invalid-return.js @@ -0,0 +1,46 @@ +var returnInvalid = false; + +const iterable = { + [Symbol.iterator]() { + return { + i: 0, + next() { + return { value: this.i++, done: false } + }, + return() { + return returnInvalid ? undefined : { value: "return", done: true }; + } + }; + } +} + +function closeIter(o) { + for (var x of o) { + if (x == 2) { + break; + } + } +} + +function test() { + with ({}) {} + for (var i = 0; i < 1000; i++) { + returnInvalid = i % 10 == 0; + var caught = false; + try { + closeIter(iterable); + } catch { + caught = true; + } + assertEq(caught, returnInvalid); + } +} + +with ({}) {} + +test(); + +// Force an IC in Ion. +closeIter([1,2,3,4,5]); + +test(); |