Call accessors in the global object prototype when initializing global variables. Function declarations are special cased for compatibility with Safari and setters are not called for them. If this special casing was not done webkit layout tests would fail. Make the declaration of global const variables in the presence of callbacks a redeclaration error. Handle const context slot declarations conflicting with a CALLBACK as a redeclaration error. That is, unless it is on a context extension object which is not a real object and therefore conceptually have no accessors in prototype chains. Accessors in prototype chains of context extension objects are explicitly ignored in SetProperty. Review URL: http://codereview.chromium.org/6534029 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6846 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
67 lines
2.5 KiB
JavaScript
67 lines
2.5 KiB
JavaScript
// Copyright 2011 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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var setter_value = 0;
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__proto__.__defineSetter__("a", function(v) { setter_value = v; });
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eval("var a = 1");
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assertEquals(1, setter_value);
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assertFalse(hasOwnProperty("a"));
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eval("with({}) { eval('var a = 2') }");
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assertEquals(2, setter_value);
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assertFalse(hasOwnProperty("a"));
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// Function declarations are treated specially to match Safari. We do
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// not call setters for them.
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eval("function a() {}");
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assertTrue(hasOwnProperty("a"));
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__proto__.__defineSetter__("b", function(v) { assertUnreachable(); });
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try {
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eval("const b = 23");
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assertUnreachable();
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} catch(e) {
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assertTrue(/TypeError/.test(e));
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}
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try {
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eval("with({}) { eval('const b = 23') }");
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assertUnreachable();
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} catch(e) {
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assertTrue(/TypeError/.test(e));
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}
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__proto__.__defineSetter__("c", function(v) { throw 42; });
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try {
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eval("var c = 1");
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assertUnreachable();
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} catch(e) {
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assertEquals(42, e);
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assertFalse(hasOwnProperty("c"));
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}
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