From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- .../jit-test/tests/arrays/species-redefine-getter.js | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 js/src/jit-test/tests/arrays/species-redefine-getter.js (limited to 'js/src/jit-test/tests/arrays/species-redefine-getter.js') 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); -- cgit v1.2.3