c128b8d9de
use safe casting operations to slot access on contexts when possible. git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@588 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
58 lines
2.5 KiB
JavaScript
58 lines
2.5 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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assertEquals("[object global]", this.toString());
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assertEquals("[object global]", toString());
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assertEquals("[object global]", eval("this.toString()"));
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assertEquals("[object global]", eval("toString()"));
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assertEquals("[object global]", eval("var f; this.toString()"));
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assertEquals("[object global]", eval("var f; toString()"));
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function F(f) {
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assertEquals("[object global]", this.toString());
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assertEquals("[object global]", toString());
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assertEquals("[object global]", eval("this.toString()"));
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assertEquals("[object global]", eval("toString()"));
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assertEquals("[object global]", eval("var f; this.toString()"));
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assertEquals("[object global]", eval("var f; toString()"));
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assertEquals("[object global]", eval("f()"));
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// Receiver should be the arguments object here.
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assertEquals("[object Object]", eval("arguments[0]()"));
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with (arguments) {
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assertEquals("[object Object]", toString());
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}
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}
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F(Object.prototype.toString);
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