1 // Copyright 2013 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 var CheckStringReceiver = function() { 29 "use strict"; 30 // Receivers of strict functions are not coerced. 31 assertEquals("string", typeof this); 32 }; 33 34 var CheckNumberReceiver = function() { 35 "use strict"; 36 // Receivers of strict functions are not coerced. 37 assertEquals("number", typeof this); 38 }; 39 40 var CheckUndefinedReceiver = function() { 41 "use strict"; 42 // Receivers of strict functions are not coerced. 43 assertEquals("undefined", String(this)); 44 }; 45 46 var CheckNullReceiver = function() { 47 "use strict"; 48 // Receivers of strict functions are not coerced. 49 assertEquals("null", String(this)); 50 }; 51 52 var CheckCoersion = function() { 53 // Receivers of non-strict functions are coerced to objects. 54 assertEquals("object", typeof this); 55 }; 56 57 58 function strict_mode() { 59 "use strict"; 60 CheckStringReceiver.call("foo"); 61 CheckNumberReceiver.call(42); 62 CheckUndefinedReceiver.call(undefined); 63 CheckNullReceiver.call(null); 64 [1].forEach(CheckStringReceiver, "foo"); 65 [2].every(CheckStringReceiver, "foo"); 66 [3].filter(CheckStringReceiver, "foo"); 67 [4].some(CheckNumberReceiver, 42); 68 [5].map(CheckNumberReceiver, 42); 69 70 CheckCoersion.call("foo"); 71 CheckCoersion.call(42); 72 CheckCoersion.call(undefined); 73 CheckCoersion.call(null); 74 [1].forEach(CheckCoersion, "foo"); 75 [2].every(CheckCoersion, "foo"); 76 [3].filter(CheckCoersion, "foo"); 77 [4].some(CheckCoersion, 42); 78 [5].map(CheckCoersion, 42); 79 }; 80 strict_mode(); 81 82 function sloppy_mode() { 83 CheckStringReceiver.call("foo"); 84 CheckNumberReceiver.call(42); 85 CheckUndefinedReceiver.call(undefined); 86 CheckNullReceiver.call(null); 87 [1].forEach(CheckStringReceiver, "foo"); 88 [2].every(CheckStringReceiver, "foo"); 89 [3].filter(CheckStringReceiver, "foo"); 90 [4].some(CheckNumberReceiver, 42); 91 [5].map(CheckNumberReceiver, 42); 92 93 CheckCoersion.call("foo"); 94 CheckCoersion.call(42); 95 CheckCoersion.call(undefined); 96 CheckCoersion.call(null); 97 [1].forEach(CheckCoersion, "foo"); 98 [2].every(CheckCoersion, "foo"); 99 [3].filter(CheckCoersion, "foo"); 100 [4].some(CheckCoersion, 42); 101 [5].map(CheckCoersion, 42); 102 }; 103 sloppy_mode(); 104
