47d1298236
instead of normal JSObjects. This ensures that __proto__ and accessors on the Object prototype do not interfere with catch scopes. Also, it fixes the bug that catch variables were not DontDelete (issue 74). Next step is to create special lookup routines for context extension objects and remove the special handling of context extension objects from the general javascript object lookup routines. Review URL: http://codereview.chromium.org/18143 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1091 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
59 lines
2.2 KiB
JavaScript
59 lines
2.2 KiB
JavaScript
// Copyright 2009 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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// Try catch scopes should be implemented with special extension
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// objects so that __proto__ accessors and accessor setters in the
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// Object prototype have no effect.
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var setterCalled = false;
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Object.prototype.__defineSetter__("x", function() { setterCalled = true; });
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function runTest(test) {
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setterCalled = false;
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test();
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}
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function testProto() {
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try {
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throw 42;
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} catch(__proto__) {
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assertEquals(42, __proto__);
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}
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}
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function testAccessorSetter() {
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try {
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throw 42;
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} catch(x) {
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assertFalse(setterCalled);
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assertEquals(42, x);
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}
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}
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runTest(testProto);
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runTest(testAccessorSetter);
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