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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/arrays/species-redefine-getter.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 '')
-rw-r--r-- | js/src/jit-test/tests/arrays/species-redefine-getter.js | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/arrays/species-redefine-getter.js b/js/src/jit-test/tests/arrays/species-redefine-getter.js new file mode 100644 index 0000000000..94ab329c08 --- /dev/null +++ b/js/src/jit-test/tests/arrays/species-redefine-getter.js @@ -0,0 +1,20 @@ +// Ensure the HadGetterSetterChange flag is set. +Object.defineProperty(Array, "foo", {configurable: true, get: function() {}}); +Object.defineProperty(Array, "foo", {configurable: true, get: function() {}}); + +// Initialize ArraySpeciesLookup. +let a = [1, 2, 3]; +for (let i = 0; i < 5; i++) { + assertEq(a.slice().length, 3); +} + +// Redefine the Array[Symbol.species] getter without changing its attributes/shape. +let count = 0; +Object.defineProperty(Array, Symbol.species, + {get: function() { count++; }, enumerable: false, configurable: true}); + +// Ensure ArraySpeciesLookup now deoptimizes and calls the getter. +for (let i = 0; i < 5; i++) { + assertEq(a.slice().length, 3); +} +assertEq(count, 5); |