diff options
Diffstat (limited to 'js/src/jit-test/tests/for-of/semantics-07.js')
-rw-r--r-- | js/src/jit-test/tests/for-of/semantics-07.js | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/for-of/semantics-07.js b/js/src/jit-test/tests/for-of/semantics-07.js new file mode 100644 index 0000000000..e89cf1f053 --- /dev/null +++ b/js/src/jit-test/tests/for-of/semantics-07.js @@ -0,0 +1,15 @@ +// Deleting the .next method of an iterator in the middle of a for-of loop +// doesn't cause a TypeError at the next iteration. + +load(libdir + "asserts.js"); +load(libdir + "iteration.js"); + +var iterProto = Object.getPrototypeOf([][Symbol.iterator]()); +var s = ''; +for (var v of ['duck', 'duck', 'duck', 'goose', 'and now you\'re it']) { + s += v; + if (v === 'goose') + delete iterProto.next; + s += '.'; +} +assertEq(s, 'duck.duck.duck.goose.and now you\'re it.'); |