e4c472a7af
Removes 6 out of 8 of our remaining unintentional failures on test262. Also fixes treatment of inherited setters added after the fact. Specifically: - In the runtime, when looking for setter callbacks in the prototype chain, also look for read-only properties. If one is found, reject (exception in strict mode). If a proxy is found, invoke proper trap. Note: this folds in the CanPut function from the spec and avoids an extra lookup over the prototype chain. - In generated code for stores, insert a test for the maps from the prototype chain, but only up to the object where the property already exists (which may be the object itself). In Hydrogen, if the found property is read-only or not cacheable (e.g. a proxy), bail out; in a stub, generate an unconditional miss (to get an exception in strict mode). - Add test cases and adapt existing test expectations. R=mstarzinger@chromium.org BUG= TEST= Review URL: https://chromiumcodereview.appspot.com/10388047 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11694 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
91 lines
3.6 KiB
JavaScript
91 lines
3.6 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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// Test for http://code.google.com/p/v8/issues/detail?id=334
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var READ_ONLY = 1;
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var DONT_ENUM = 2;
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var DONT_DELETE = 4;
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function func1(){}
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function func2(){}
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var object = {__proto__:{}};
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%SetProperty(object, "foo", func1, DONT_ENUM | DONT_DELETE);
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%SetProperty(object, "bar", func1, DONT_ENUM | READ_ONLY);
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%SetProperty(object, "baz", func1, DONT_DELETE | READ_ONLY);
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%SetProperty(object.__proto__, "bif", func1, DONT_ENUM | DONT_DELETE);
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object.bif = func2;
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function enumerable(obj) {
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var res = [];
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for (var i in obj) {
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res.push(i);
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}
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res.sort();
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return res;
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}
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// Sanity check: expected initial state.
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assertArrayEquals(["baz", "bif"], enumerable(object), "enum0");
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assertFalse(delete object.foo, "delete foo");
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assertFalse(delete object.baz, "delete baz");
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assertEquals(func1, object.foo, "read foo");
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assertEquals(func1, object.bar, "read bar");
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assertEquals(func1, object.baz, "read baz");
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assertEquals(func2, object.bif, "read bif");
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// Can't assign to READ_ONLY.
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object.bar = "NO WAY";
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assertEquals(func1, object.bar, "read bar 2");
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assertArrayEquals(["baz", "bif"], enumerable(object), "enum1");
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// Assignment to non-readonly. Assignment shouldn't change attributes!
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object.foo = func2;
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assertArrayEquals(["baz", "bif"], enumerable(object), "enum2");
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assertFalse(delete object.foo, "delete foo 2");
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// Delete should erase attributes if value set again.
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assertTrue(delete object.bar, "delete bar");
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assertFalse("bar" in object, "has bar");
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object.bar = func2;
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assertTrue("bar" in object, "has bar 2");
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assertEquals(func2, object.bar, "read bar 3");
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assertArrayEquals(["bar", "baz", "bif"], enumerable(object), "enum3");
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// Unshadowing a prototype property exposes its attributes.
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assertTrue(delete object.bif, "delete bif");
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assertArrayEquals(["bar", "baz"], enumerable(object), "enum4");
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assertEquals(func1, object.bif, "read bif 2");
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// Can't delete prototype property.
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assertTrue(delete object.bif, "delete bif 2");
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assertArrayEquals(["bar", "baz"], enumerable(object), "enum5");
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assertEquals(func1, object.bif, "read bif3");
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