OLD | NEW |
(Empty) | |
| 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 classic_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 classic_mode(); |
OLD | NEW |