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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /js/src/jit-test/tests/for-of/semantics-01.js | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/jit-test/tests/for-of/semantics-01.js')
-rw-r--r-- | js/src/jit-test/tests/for-of/semantics-01.js | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/for-of/semantics-01.js b/js/src/jit-test/tests/for-of/semantics-01.js new file mode 100644 index 0000000000..6da9883723 --- /dev/null +++ b/js/src/jit-test/tests/for-of/semantics-01.js @@ -0,0 +1,13 @@ +// for-of is defined in terms of basic operations on objects, particularly +// [[Get]] for properties named "iterator" and "next", and [[Call]]. These +// "semantics" tests check that for-of really does appear to be implemented in +// terms of those more basic operations, as required by the spec, even in +// unusual cases. + +// Deleting Array.prototype.iterator makes for-of stop working on arrays. + +load(libdir + "asserts.js"); +load(libdir + "iteration.js"); + +delete Array.prototype[Symbol.iterator]; +assertThrowsInstanceOf(function () { for (var x of []) ; }, TypeError); |