1 // Copyright 2008 the V8 project authors. All rights reserved. 2 // Redistribution and use in source and binary forms, with or without 3 // modification, are permitted provided that the following conditions are 4 // met: 5 // 6 // * Redistributions of source code must retain the above copyright 7 // notice, this list of conditions and the following disclaimer. 8 // * Redistributions in binary form must reproduce the above 9 // copyright notice, this list of conditions and the following 10 // disclaimer in the documentation and/or other materials provided 11 // with the distribution. 12 // * Neither the name of Google Inc. nor the names of its 13 // contributors may be used to endorse or promote products derived 14 // from this software without specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28 function f0() { 29 return this; 30 } 31 32 assertTrue(this === f0.call(), "1"); 33 34 assertTrue(this === f0.call(this), "w"); 35 assertTrue(this === f0.call(this, 1), "w"); 36 assertTrue(this === f0.call(this, 1, 2), "w"); 37 38 assertTrue(this === f0.call(null), "3a"); 39 assertTrue(this === f0.call(null, 1), "3b"); 40 assertTrue(this === f0.call(null, 1, 2), "3c"); 41 42 assertTrue(this === f0.call(void 0), "4a"); 43 assertTrue(this === f0.call(void 0, 1), "4b"); 44 assertTrue(this === f0.call(void 0, 1, 2), "4c"); 45 46 var x = {}; 47 assertTrue(x === f0.call(x)); 48 assertTrue(x === f0.call(x, 1)); 49 assertTrue(x === f0.call(x, 1, 2)); 50 51 52 function f1(a) { 53 a = a || 'i'; 54 return this[a]; 55 } 56 57 assertEquals(1, f1.call({i:1})); 58 assertEquals(42, f1.call({i:42}, 'i')); 59 assertEquals(87, f1.call({j:87}, 'j', 1)); 60 assertEquals(99, f1.call({k:99}, 'k', 1, 2)); 61 62 63 function f2(a, b) { 64 a = a || 'n'; 65 b = b || 2; 66 return this[a] + b; 67 } 68 69 var x = {n: 1}; 70 assertEquals(3, f2.call(x)); 71 assertEquals(14, f2.call({i:12}, 'i')); 72 assertEquals(42, f2.call(x, 'n', 41)); 73 assertEquals(87, f2.call(x, 'n', 86, 1)); 74 assertEquals(99, f2.call(x, 'n', 98, 1, 2)); 75 76 77 function fn() { 78 return arguments.length; 79 } 80 81 assertEquals(0, fn.call()); 82 assertEquals(0, fn.call(this)); 83 assertEquals(0, fn.call(null)); 84 assertEquals(0, fn.call(void 0)); 85 assertEquals(1, fn.call(this, 1)); 86 assertEquals(2, fn.call(this, 1, 2)); 87 assertEquals(3, fn.call(this, 1, 2, 3)); 88
