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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/testDirectProxySet9.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/testDirectProxySet9.js')
-rw-r--r-- | js/src/jit-test/tests/proxy/testDirectProxySet9.js | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/proxy/testDirectProxySet9.js b/js/src/jit-test/tests/proxy/testDirectProxySet9.js new file mode 100644 index 0000000000..7a08b3c0cd --- /dev/null +++ b/js/src/jit-test/tests/proxy/testDirectProxySet9.js @@ -0,0 +1,20 @@ +// Assigning to a proxy with no set handler calls the defineProperty handler +// when an existing own data property already exists on the target. + +var t = {x: 1}; +var p = new Proxy(t, { + 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, 42); + return true; + } +}); +var hits = 0; +p.x = 42; +assertEq(hits, 1); +assertEq(t.x, 1); |