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85 lines
3.0 KiB
JavaScript
85 lines
3.0 KiB
JavaScript
// Copyright 2008 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Flags: --allow-natives-syntax
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// Make sure that we can introduce global variables that shadow even
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// READ_ONLY variables in the prototype chain.
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var NONE = 0;
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var READ_ONLY = 1;
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function AddNamedProperty(object, name, value, attrs) {
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Object.defineProperty(object, name, {
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value,
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configurable: true,
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enumerable: true,
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writable: (attrs & READ_ONLY) === 0
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});
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}
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// Use DeclareGlobal...
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AddNamedProperty(this.__proto__, "a", 1234, NONE);
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assertEquals(1234, a);
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eval("var a = 5678;");
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assertEquals(5678, a);
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AddNamedProperty(this.__proto__, "b", 1234, NONE);
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assertEquals(1234, b);
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eval("var b = 5678;");
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assertEquals(5678, b);
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AddNamedProperty(this.__proto__, "c", 1234, READ_ONLY);
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assertEquals(1234, c);
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eval("var c = 5678;");
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assertEquals(5678, c);
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AddNamedProperty(this.__proto__, "d", 1234, READ_ONLY);
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assertEquals(1234, d);
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eval("var d = 5678;");
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assertEquals(5678, d);
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// Use DeclareContextSlot...
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AddNamedProperty(this.__proto__, "x", 1234, NONE);
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assertEquals(1234, x);
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eval("with({}) { var x = 5678; }");
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assertEquals(5678, x);
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AddNamedProperty(this.__proto__, "y", 1234, NONE);
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assertEquals(1234, y);
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eval("with({}) { var y = 5678; }");
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assertEquals(5678, y);
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AddNamedProperty(this.__proto__, "z", 1234, READ_ONLY);
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assertEquals(1234, z);
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eval("with({}) { var z = 5678; }");
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assertEquals(5678, z);
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AddNamedProperty(this.__proto__, "w", 1234, READ_ONLY);
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assertEquals(1234, w);
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eval("with({}) { var w = 5678; }");
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assertEquals(5678, w);
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