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/object/defineProperty-proxy.js | 54 ++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 js/src/tests/non262/object/defineProperty-proxy.js (limited to 'js/src/tests/non262/object/defineProperty-proxy.js') diff --git a/js/src/tests/non262/object/defineProperty-proxy.js b/js/src/tests/non262/object/defineProperty-proxy.js new file mode 100644 index 0000000000..b5ece940bc --- /dev/null +++ b/js/src/tests/non262/object/defineProperty-proxy.js @@ -0,0 +1,54 @@ +/* Any copyright is dedicated to the Public Domain. + * http://creativecommons.org/licenses/publicdomain/ */ + +// Test details of the implementation of ToPropertyDescriptor exposed to scripts +// thanks to scriptable proxies. + +// A LoggingProxy object logs certain operations performed on it. +var log = []; +function LoggingProxy(target) { + return new Proxy(target, { + has: function (t, id) { + log.push("has " + id); + return id in t; + }, + get: function (t, id) { + log.push("get " + id); + return t[id]; + } + }); +} + +// Tragically, we use separate code to implement Object.defineProperty on +// arrays and on proxies. So run the test three times. +var testSubjects = [ + {}, + [], + new Proxy({}, {}) +]; + +for (var obj of testSubjects) { + log = []; + + // Object.defineProperty is one public method that performs a + // ToPropertyDescriptor call. + Object.defineProperty(obj, "x", new LoggingProxy({ + enumerable: true, + configurable: true, + value: 3, + writable: true + })); + + // It should have performed exactly these operations on the proxy, in this + // order. See ES6 rev 24 (2014 April 27) 6.2.4.5 ToPropertyDescriptor. + assertDeepEq(log, [ + "has enumerable", "get enumerable", + "has configurable", "get configurable", + "has value", "get value", + "has writable", "get writable", + "has get", + "has set" + ]); +} + +reportCompare(0, 0); -- cgit v1.2.3