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 --- js/src/tests/non262/class/classPrototype.js | 65 +++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 js/src/tests/non262/class/classPrototype.js (limited to 'js/src/tests/non262/class/classPrototype.js') diff --git a/js/src/tests/non262/class/classPrototype.js b/js/src/tests/non262/class/classPrototype.js new file mode 100644 index 0000000000..0d2296037c --- /dev/null +++ b/js/src/tests/non262/class/classPrototype.js @@ -0,0 +1,65 @@ +// The prototype of a class is a non-writable, non-configurable, non-enumerable data property. +class a { constructor() { } } +let b = class { constructor() { } }; +for (let test of [a,b]) { + var protoDesc = Object.getOwnPropertyDescriptor(test, "prototype"); + assertEq(protoDesc.writable, false); + assertEq(protoDesc.configurable, false); + assertEq(protoDesc.enumerable, false); + + var prototype = protoDesc.value; + assertEq(typeof prototype, "object"); + assertEq(Object.getPrototypeOf(prototype), Object.prototype); + assertEq(Object.isExtensible(prototype), true); + + var desiredPrototype = {}; + Object.defineProperty(desiredPrototype, "constructor", { writable: true, + configurable: true, + enumerable: false, + value: test }); + assertDeepEq(prototype, desiredPrototype); +} + +// As such, it should by a TypeError to try and overwrite "prototype" with a +// static member. The only way to try is with a computed property name; the rest +// are early errors. +assertThrowsInstanceOf(() => eval(` + class a { + constructor() { }; + static ["prototype"]() { } + } + `), TypeError); +assertThrowsInstanceOf(() => eval(` + class a { + constructor() { }; + static get ["prototype"]() { } + } + `), TypeError); +assertThrowsInstanceOf(() => eval(` + class a { + constructor() { }; + static set ["prototype"](x) { } + } + `), TypeError); + +assertThrowsInstanceOf(() => eval(`( + class a { + constructor() { }; + static ["prototype"]() { } + } + )`), TypeError); +assertThrowsInstanceOf(() => eval(`( + class a { + constructor() { }; + static get ["prototype"]() { } + } + )`), TypeError); +assertThrowsInstanceOf(() => eval(`( + class a { + constructor() { }; + static set ["prototype"](x) { } + } + )`), TypeError); + +if (typeof reportCompare === "function") + reportCompare(0, 0, "OK"); -- cgit v1.2.3