7bbfc8fc53
Noticing that the only difference between samevalue and strict equality is on numbers we can simplify SameValue. The old version did not return a correct answer if called on two strings since StringEquals (from runtime.cc) returns an answer that is the negated value (if treated as a boolean). Review URL: http://codereview.chromium.org/2136024 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4713 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
103 lines
4.3 KiB
JavaScript
103 lines
4.3 KiB
JavaScript
// Copyright 2010 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: --expose-natives_as natives
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// Test the SameValue internal method.
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var obj1 = {x: 10, y: 11, z: "test"};
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var obj2 = {x: 10, y: 11, z: "test"};
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assertTrue(natives.SameValue(0, 0));
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assertTrue(natives.SameValue(+0, +0));
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assertTrue(natives.SameValue(-0, -0));
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assertTrue(natives.SameValue(1, 1));
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assertTrue(natives.SameValue(2, 2));
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assertTrue(natives.SameValue(-1, -1));
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assertTrue(natives.SameValue(0.5, 0.5));
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assertTrue(natives.SameValue(true, true));
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assertTrue(natives.SameValue(false, false));
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assertTrue(natives.SameValue(NaN, NaN));
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assertTrue(natives.SameValue(null, null));
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assertTrue(natives.SameValue("foo", "foo"));
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assertTrue(natives.SameValue(obj1, obj1));
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// Undefined values.
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assertTrue(natives.SameValue());
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assertTrue(natives.SameValue(undefined, undefined));
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assertFalse(natives.SameValue(0,1));
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assertFalse(natives.SameValue("foo", "bar"));
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assertFalse(natives.SameValue(obj1, obj2));
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assertFalse(natives.SameValue(true, false));
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assertFalse(natives.SameValue(obj1, true));
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assertFalse(natives.SameValue(obj1, "foo"));
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assertFalse(natives.SameValue(obj1, 1));
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assertFalse(natives.SameValue(obj1, undefined));
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assertFalse(natives.SameValue(obj1, NaN));
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assertFalse(natives.SameValue(undefined, true));
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assertFalse(natives.SameValue(undefined, "foo"));
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assertFalse(natives.SameValue(undefined, 1));
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assertFalse(natives.SameValue(undefined, obj1));
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assertFalse(natives.SameValue(undefined, NaN));
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assertFalse(natives.SameValue(NaN, true));
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assertFalse(natives.SameValue(NaN, "foo"));
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assertFalse(natives.SameValue(NaN, 1));
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assertFalse(natives.SameValue(NaN, obj1));
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assertFalse(natives.SameValue(NaN, undefined));
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assertFalse(natives.SameValue("foo", true));
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assertFalse(natives.SameValue("foo", 1));
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assertFalse(natives.SameValue("foo", obj1));
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assertFalse(natives.SameValue("foo", undefined));
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assertFalse(natives.SameValue("foo", NaN));
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assertFalse(natives.SameValue(true, 1));
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assertFalse(natives.SameValue(true, obj1));
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assertFalse(natives.SameValue(true, undefined));
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assertFalse(natives.SameValue(true, NaN));
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assertFalse(natives.SameValue(true, "foo"));
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assertFalse(natives.SameValue(1, true));
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assertFalse(natives.SameValue(1, obj1));
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assertFalse(natives.SameValue(1, undefined));
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assertFalse(natives.SameValue(1, NaN));
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assertFalse(natives.SameValue(1, "foo"));
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// Special string cases.
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assertFalse(natives.SameValue("1", 1));
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assertFalse(natives.SameValue("true", true));
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assertFalse(natives.SameValue("false", false));
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assertFalse(natives.SameValue("undefined", undefined));
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assertFalse(natives.SameValue("NaN", NaN));
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// -0 and +0 are should be different
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assertFalse(natives.SameValue(+0, -0));
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assertFalse(natives.SameValue(-0, +0));
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