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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/jit-test/tests/proxy/testDirectProxySetArray3.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/jit-test/tests/proxy/testDirectProxySetArray3.js')
-rw-r--r-- | js/src/jit-test/tests/proxy/testDirectProxySetArray3.js | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/proxy/testDirectProxySetArray3.js b/js/src/jit-test/tests/proxy/testDirectProxySetArray3.js new file mode 100644 index 0000000000..44bbcd99b4 --- /dev/null +++ b/js/src/jit-test/tests/proxy/testDirectProxySetArray3.js @@ -0,0 +1,21 @@ +// Assigning to the length property of a proxy to an array +// calls the proxy's defineProperty handler. + +var a = [0, 1, 2, 3]; +var p = new Proxy(a, { + defineProperty(t, id, desc) { + hits++; + + // ES6 draft rev 28 (2014 Oct 14) 9.1.9 step 5.e.i. + // Since the property already exists, the system only changes + // the value. desc is otherwise empty. + assertEq(Object.getOwnPropertyNames(desc).join(","), "value"); + assertEq(desc.value, 2); + return true; + } +}); +var hits = 0; +p.length = 2; +assertEq(hits, 1); +assertEq(a.length, 4); +assertEq(a[2], 2); |