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 --- .../statements/for-in-with-assignment-semantics.js | 46 ++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 js/src/tests/non262/statements/for-in-with-assignment-semantics.js (limited to 'js/src/tests/non262/statements/for-in-with-assignment-semantics.js') diff --git a/js/src/tests/non262/statements/for-in-with-assignment-semantics.js b/js/src/tests/non262/statements/for-in-with-assignment-semantics.js new file mode 100644 index 0000000000..f1dbb3438f --- /dev/null +++ b/js/src/tests/non262/statements/for-in-with-assignment-semantics.js @@ -0,0 +1,46 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +const unreachable = () => { throw "unreachable"; }; + +// var-initializer expression is executed before for-in expression. +var log = ""; +for (var x = (log += "head") in (log += "|expr", null)) unreachable(); +assertEq(log, "head|expr"); + +log = ""; +for (var x = (log += "head") in (log += "|expr", {})) unreachable(); +assertEq(log, "head|expr"); + + +// for-in expression isn't executed when var-initializer throws exception. +function ExpectedError() {} +assertThrowsInstanceOf(() => { + var throwErr = () => { throw new ExpectedError(); }; + for (var x = throwErr() in unreachable()) unreachable(); +}, ExpectedError); + + +// Ensure environment operations are performed correctly. +var scope = new Proxy({x: 0}, new Proxy({}, { + get(t, pk, r) { + log += pk + "|"; + } +})); + +log = ""; +with (scope) { + for (var x = 0 in {}) ; +} +assertEq(log, "has|get|set|getOwnPropertyDescriptor|defineProperty|"); + +log = ""; +with (scope) { + for (var x = 0 in {p: 0}) ; +} +assertEq(log, "has|get|set|getOwnPropertyDescriptor|defineProperty|".repeat(2)); + + +if (typeof reportCompare === "function") + reportCompare(true, true); -- cgit v1.2.3