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| 1 // Copyright 2009 the V8 project authors. All rights reserved. | 1 // Copyright 2009 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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| 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 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. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | 27 |
| 28 // Test some expression contexts involving short-circuit boolean | 28 // Test some expression contexts involving short-circuit boolean |
| 29 // operations that did not otherwise have test coverage. | 29 // operations that did not otherwise have test coverage. |
| 30 | 30 |
| 31 | 31 |
| 32 var x = 42; | 32 var x = 42; |
| 33 | 33 |
| 34 // Literals in value/test context. | 34 // Literals in value/test context. |
| 35 assertEquals(x, function () { return 0 || x }()); | 35 assertEquals(x, function () { return 0 || x; }()); |
| 36 assertEquals(1, function () { return 1 || x }()); | 36 assertEquals(1, function () { return 1 || x; }()); |
| 37 | 37 |
| 38 // Literals in test/value context. | 38 // Literals in test/value context. |
| 39 assertEquals(0, function () { return 0 && x }()); | 39 assertEquals(0, function () { return 0 && x; }()); |
| 40 assertEquals(x, function () { return 1 && x }()); | 40 assertEquals(x, function () { return 1 && x; }()); |
| 41 | 41 |
| 42 // A value on top of the stack in value/test context. | 42 // A value on top of the stack in value/test context. |
| 43 assertEquals(x, function(y) { return y++ || x }(0)); | 43 assertEquals(x, function(y) { return y++ || x; }(0)); |
| 44 assertEquals(1, function(y) { return y++ || x }(1)); | 44 assertEquals(1, function(y) { return y++ || x; }(1)); |
| 45 | 45 |
| 46 // A value on top of the stack in a test/value context. | 46 // A value on top of the stack in a test/value context. |
| 47 assertEquals(0, function(y) { return y++ && x }(0)); | 47 assertEquals(0, function(y) { return y++ && x; }(0)); |
| 48 assertEquals(x, function(y) { return y++ && x }(1)); | 48 assertEquals(x, function(y) { return y++ && x; }(1)); |
| 49 | 49 |
| 50 // An object literal in value context. | 50 // An object literal in value context. |
| 51 assertEquals(0, function () { return {x: 0}}().x); | 51 assertEquals(0, function () { return {x: 0};}().x); |
| 52 | 52 |
| 53 // An object literal in value/test context. | 53 // An object literal in value/test context. |
| 54 assertEquals(0, function () { return {x: 0} || this }().x); | 54 assertEquals(0, function () { return {x: 0} || this; }().x); |
| 55 | 55 |
| 56 // An object literal in test/value context. | 56 // An object literal in test/value context. |
| 57 assertEquals(x, function () { return {x: 0} && this }().x); | 57 assertEquals(x, function () { return {x: 0} && this; }().x); |
| 58 | 58 |
| 59 // An array literal in value/test context. | 59 // An array literal in value/test context. |
| 60 assertEquals(0, function () { return [0,1] || new Array(x,1) }()[0]); | 60 assertEquals(0, function () { return [0,1] || new Array(x,1); }()[0]); |
| 61 | 61 |
| 62 // An array literal in test/value context. | 62 // An array literal in test/value context. |
| 63 assertEquals(x, function () { return [0,1] && new Array(x,1) }()[0]); | 63 assertEquals(x, function () { return [0,1] && new Array(x,1); }()[0]); |
| 64 | 64 |
| 65 // Slot assignment in value/test context. | 65 // Slot assignment in value/test context. |
| 66 assertEquals(x, function (y) { return (y = 0) || x }("?")); | 66 assertEquals(x, function (y) { return (y = 0) || x; }("?")); |
| 67 assertEquals(1, function (y) { return (y = 1) || x }("?")); | 67 assertEquals(1, function (y) { return (y = 1) || x; }("?")); |
| 68 | 68 |
| 69 // Slot assignment in test/value context. | 69 // Slot assignment in test/value context. |
| 70 assertEquals(0, function (y) { return (y = 0) && x }("?")); | 70 assertEquals(0, function (y) { return (y = 0) && x; }("?")); |
| 71 assertEquals(x, function (y) { return (y = 1) && x }("?")); | 71 assertEquals(x, function (y) { return (y = 1) && x; }("?")); |
| 72 | 72 |
| 73 // void in value context. | 73 // void in value context. |
| 74 assertEquals(void 0, function () { return void x }()); | 74 assertEquals(void 0, function () { return void x; }()); |
| 75 | 75 |
| 76 // void in value/test context. | 76 // void in value/test context. |
| 77 assertEquals(x, function () { return (void x) || x }()); | 77 assertEquals(x, function () { return (void x) || x; }()); |
| 78 | 78 |
| 79 // void in test/value context. | 79 // void in test/value context. |
| 80 assertEquals(void 0, function () { return (void x) && x }()); | 80 assertEquals(void 0, function () { return (void x) && x; }()); |
| 81 | 81 |
| 82 // Unary not in value context. | 82 // Unary not in value context. |
| 83 assertEquals(false, function () { return !x }()); | 83 assertEquals(false, function () { return !x; }()); |
| 84 | 84 |
| 85 // Unary not in value/test context. | 85 // Unary not in value/test context. |
| 86 assertEquals(true, function (y) { return !y || x }(0)); | 86 assertEquals(true, function (y) { return !y || x; }(0)); |
| 87 assertEquals(x, function (y) { return !y || x }(1)); | 87 assertEquals(x, function (y) { return !y || x; }(1)); |
| 88 | 88 |
| 89 // Unary not in test/value context. | 89 // Unary not in test/value context. |
| 90 assertEquals(x, function (y) { return !y && x }(0)); | 90 assertEquals(x, function (y) { return !y && x; }(0)); |
| 91 assertEquals(false, function (y) { return !y && x }(1)); | 91 assertEquals(false, function (y) { return !y && x; }(1)); |
| 92 | 92 |
| 93 // Comparison in value context. | 93 // Comparison in value context. |
| 94 assertEquals(false, function () { return x < x; }()); | 94 assertEquals(false, function () { return x < x; }()); |
| 95 | 95 |
| 96 // Comparison in value/test context. | 96 // Comparison in value/test context. |
| 97 assertEquals(x, function () { return x < x || x; }()); | 97 assertEquals(x, function () { return x < x || x; }()); |
| 98 assertEquals(true, function () { return x <= x || x; }()); | 98 assertEquals(true, function () { return x <= x || x; }()); |
| 99 | 99 |
| 100 // Comparison in test/value context. | 100 // Comparison in test/value context. |
| 101 assertEquals(false, function () { return x < x && x; }()); | 101 assertEquals(false, function () { return x < x && x; }()); |
| 102 assertEquals(x, function () { return x <= x && x; }()); | 102 assertEquals(x, function () { return x <= x && x; }()); |
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