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authorwolfbeast <mcwerewolf@wolfbeast.com>2019-08-18 16:25:15 +0200
committerwolfbeast <mcwerewolf@wolfbeast.com>2019-08-18 16:26:16 +0200
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Pull Basilisk-release forward.
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diff --git a/js/src/tests/test262/language/arguments-object/mapped/mapped-arguments-nonwritable-nonconfigurable-4.js b/js/src/tests/test262/language/arguments-object/mapped/mapped-arguments-nonwritable-nonconfigurable-4.js
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+++ b/js/src/tests/test262/language/arguments-object/mapped/mapped-arguments-nonwritable-nonconfigurable-4.js
@@ -0,0 +1,26 @@
+// Copyright (C) 2015 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Mapped arguments object with non-configurable property
+description: >
+ Mapped arguments property is changed to non-writable and
+ non-configurable. Perform property attribute changes with two
+ [[DefineOwnProperty]] calls. Add intervening call to
+ [[DefineOwnProperty]].
+flags: [noStrict]
+---*/
+
+function argumentsNonWritableThenNonConfigurableWithInterveningDefineOwnProperty(a) {
+ Object.defineProperty(arguments, "0", {writable: false});
+ Object.defineProperty(arguments, "0", {value: 2});
+ Object.defineProperty(arguments, "0", {configurable: false});
+ assert.sameValue(a, 1);
+ assert.sameValue(arguments[0], 2);
+
+ // Postcondition: Arguments mapping is removed.
+ a = 3;
+ assert.sameValue(a, 3);
+ assert.sameValue(arguments[0], 2);
+}
+argumentsNonWritableThenNonConfigurableWithInterveningDefineOwnProperty(1);