From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- .../symbol-object-not-unboxed-for-value-to-id.js | 31 ++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 js/src/tests/non262/Symbol/symbol-object-not-unboxed-for-value-to-id.js (limited to 'js/src/tests/non262/Symbol/symbol-object-not-unboxed-for-value-to-id.js') diff --git a/js/src/tests/non262/Symbol/symbol-object-not-unboxed-for-value-to-id.js b/js/src/tests/non262/Symbol/symbol-object-not-unboxed-for-value-to-id.js new file mode 100644 index 0000000000..d889a77162 --- /dev/null +++ b/js/src/tests/non262/Symbol/symbol-object-not-unboxed-for-value-to-id.js @@ -0,0 +1,31 @@ +// Create a symbol and a wrapper for it. +var s = Symbol(); +var so = Object(s); + +// Create a symbol-valued property key using |s|. +var o = {[s]: 0}; + +// The default Symbol.prototype[@@toPrimitive] will unbox the symbol object as needed. +assertEq(o.propertyIsEnumerable(so), true); +assertEq(o.hasOwnProperty(so), true); + +// After redefining Symbol.prototype[@@toPrimitive], any calls to the ToPropertyKey +// abstract operation will no longer unbox the symbol object. +Object.defineProperty(Symbol.prototype, Symbol.toPrimitive, { + value: function() { + return "foo"; + } +}); + +// |o| doesn't have a string-valued property named "foo". +assertEq(o.propertyIsEnumerable(so), false); +assertEq(o.hasOwnProperty(so), false); + +o.foo = 123; + +// After |o.foo| was added, both calls should return true again. +assertEq(o.propertyIsEnumerable(so), true); +assertEq(o.hasOwnProperty(so), true); + +if (typeof reportCompare === "function") + reportCompare(0, 0); -- cgit v1.2.3