Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1 | // Copyright 2015 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | // Flags: --allow-natives-syntax |
| 6 | "use strict"; |
| 7 | |
| 8 | function test(expected, f) { |
| 9 | assertEquals(expected, f()); |
| 10 | assertEquals(expected, f()); |
| 11 | %OptimizeFunctionOnNextCall(f); |
| 12 | assertEquals(expected, f()); |
| 13 | assertEquals(expected, f()); |
| 14 | } |
| 15 | |
| 16 | function testThrows(f) { |
| 17 | assertThrows(f); |
| 18 | assertThrows(f); |
| 19 | %OptimizeFunctionOnNextCall(f); |
| 20 | assertThrows(f); |
| 21 | assertThrows(f); |
| 22 | } |
| 23 | |
| 24 | function f1() { return undefined; } |
| 25 | test(void 0, f1); |
| 26 | |
| 27 | function f2() { return void 0; } |
| 28 | test(void 0, f2); |
| 29 | |
| 30 | function f3() { return void 0 == void 0; } |
| 31 | test(true, f3); |
| 32 | |
| 33 | function f4() { return void 0 == undefined; } |
| 34 | test(true, f4); |
| 35 | |
| 36 | function f5() { return undefined == void 0; } |
| 37 | test(true, f5); |
| 38 | |
| 39 | function f6() { return "" + undefined; } |
| 40 | test("undefined", f6); |
| 41 | |
| 42 | function f7() { return void 0 === void 0; } |
| 43 | test(true, f7); |
| 44 | |
| 45 | function f8() { return void 0 === undefined; } |
| 46 | test(true, f8); |
| 47 | |
| 48 | function f9() { return undefined === void 0; } |
| 49 | test(true, f9); |
| 50 | |
| 51 | function g1() { return this; } |
| 52 | test(void 0, g1); |
| 53 | |
| 54 | function g2() { return void 0; } |
| 55 | test(void 0, g2); |
| 56 | |
| 57 | function g3() { return void 0 == void 0; } |
| 58 | test(true, g3); |
| 59 | |
| 60 | function g4() { return void 0 == this; } |
| 61 | test(true, g4); |
| 62 | |
| 63 | function g5() { return this == void 0; } |
| 64 | test(true, g5); |
| 65 | |
| 66 | function g6() { return "" + this; } |
| 67 | test("undefined", g6); |
| 68 | |
| 69 | function g7() { return void 0 === void 0; } |
| 70 | test(true, g7); |
| 71 | |
| 72 | function g8() { return void 0 === this; } |
| 73 | test(true, g8); |
| 74 | |
| 75 | function g9() { return this === void 0; } |
| 76 | test(true, g9); |
| 77 | |
| 78 | testThrows(function() { undefined = 111; }); |
| 79 | |
| 80 | function h1() { return undefined; } |
| 81 | test(void 0, h1); |
| 82 | |
| 83 | function h2() { return void 0; } |
| 84 | test(void 0, h2); |
| 85 | |
| 86 | function h3() { return void 0 == void 0; } |
| 87 | test(true, h3); |
| 88 | |
| 89 | function h4() { return void 0 == undefined; } |
| 90 | test(true, h4); |
| 91 | |
| 92 | function h5() { return undefined == void 0; } |
| 93 | test(true, h5); |
| 94 | |
| 95 | function h6() { return "" + undefined; } |
| 96 | test("undefined", h6); |
| 97 | |
| 98 | function h7() { return void 0 === void 0; } |
| 99 | test(true, h7); |
| 100 | |
| 101 | function h8() { return void 0 === undefined; } |
| 102 | test(true, h8); |
| 103 | |
| 104 | function h9() { return undefined === void 0; } |
| 105 | test(true, h9); |
| 106 | |
| 107 | // ------------- |
| 108 | |
| 109 | function k1() { return this; } |
| 110 | test(void 0, k1); |
| 111 | |
| 112 | function k2() { return void 0; } |
| 113 | test(void 0, k2); |
| 114 | |
| 115 | function k3() { return this === undefined; } |
| 116 | test(true, k3); |
| 117 | |
| 118 | function k4() { return void 0 === this; } |
| 119 | test(true, k4); |
| 120 | |
| 121 | function k5() { return this === void 0; } |
| 122 | test(true, k5); |
| 123 | |
| 124 | function k6() { return "" + this; } |
| 125 | test("undefined", k6); |
| 126 | |
| 127 | function k7() { return void 0 === void 0; } |
| 128 | test(true, k7); |
| 129 | |
| 130 | function k8() { return void 0 === this; } |
| 131 | test(true, k8); |
| 132 | |
| 133 | function k9() { return this === void 0; } |
| 134 | test(true, k9); |
| 135 | |
| 136 | // ------------- |
| 137 | |
| 138 | function m1() { return this.undefined; } |
| 139 | testThrows(m1); |
| 140 | |
| 141 | function m2() { return void 0; } |
| 142 | test(void 0, m2); |
| 143 | |
| 144 | function m3() { return this === undefined; } |
| 145 | test(true, m3); |
| 146 | |
| 147 | function m4() { return void 0 === this.undefined; } |
| 148 | testThrows(m4); |
| 149 | |
| 150 | function m5() { return this.undefined == void 0; } |
| 151 | testThrows(m5); |
| 152 | |
| 153 | function m6() { return "" + this.undefined; } |
| 154 | testThrows(m6); |
| 155 | |
| 156 | function m7() { return void 0 === void 0; } |
| 157 | test(true, m7); |
| 158 | |
| 159 | function m8() { return void 0 === this.undefined; } |
| 160 | testThrows(m8); |
| 161 | |
| 162 | function m9() { return this.undefined === void 0; } |
| 163 | testThrows(m9); |