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sourceRevisionAtLastExport: 33f2fb0e53d135f0ee17cfccd9d993eb2a6f47de targetRevisionAtLastExport: 31340cbd9add103f586d501b0c3354b7b182abc0
103 lines
4.1 KiB
JavaScript
103 lines
4.1 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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// Test some expression contexts involving short-circuit boolean
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// operations that did not otherwise have test coverage.
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var x = 42;
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// Literals in value/test context.
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assertEquals(x, function () { return 0 || x }());
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assertEquals(1, function () { return 1 || x }());
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// Literals in test/value context.
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assertEquals(0, function () { return 0 && x }());
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assertEquals(x, function () { return 1 && x }());
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// A value on top of the stack in value/test context.
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assertEquals(x, function(y) { return y++ || x }(0));
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assertEquals(1, function(y) { return y++ || x }(1));
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// A value on top of the stack in a test/value context.
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assertEquals(0, function(y) { return y++ && x }(0));
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assertEquals(x, function(y) { return y++ && x }(1));
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// An object literal in value context.
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assertEquals(0, function () { return {x: 0}}().x);
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// An object literal in value/test context.
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assertEquals(0, function () { return {x: 0} || this }().x);
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// An object literal in test/value context.
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assertEquals(x, function () { return {x: 0} && this }().x);
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// An array literal in value/test context.
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assertEquals(0, function () { return [0,1] || new Array(x,1) }()[0]);
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// An array literal in test/value context.
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assertEquals(x, function () { return [0,1] && new Array(x,1) }()[0]);
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// Slot assignment in value/test context.
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assertEquals(x, function (y) { return (y = 0) || x }("?"));
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assertEquals(1, function (y) { return (y = 1) || x }("?"));
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// Slot assignment in test/value context.
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assertEquals(0, function (y) { return (y = 0) && x }("?"));
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assertEquals(x, function (y) { return (y = 1) && x }("?"));
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// void in value context.
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assertEquals(void 0, function () { return void x }());
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// void in value/test context.
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assertEquals(x, function () { return (void x) || x }());
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// void in test/value context.
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assertEquals(void 0, function () { return (void x) && x }());
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// Unary not in value context.
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assertEquals(false, function () { return !x }());
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// Unary not in value/test context.
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assertEquals(true, function (y) { return !y || x }(0));
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assertEquals(x, function (y) { return !y || x }(1));
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// Unary not in test/value context.
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assertEquals(x, function (y) { return !y && x }(0));
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assertEquals(false, function (y) { return !y && x }(1));
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// Comparison in value context.
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assertEquals(false, function () { return x < x; }());
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// Comparison in value/test context.
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assertEquals(x, function () { return x < x || x; }());
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assertEquals(true, function () { return x <= x || x; }());
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// Comparison in test/value context.
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assertEquals(false, function () { return x < x && x; }());
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assertEquals(x, function () { return x <= x && x; }());
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