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 | |
| 7 | function test(expected, f) { |
| 8 | assertEquals(expected, f()); |
| 9 | assertEquals(expected, f()); |
| 10 | %OptimizeFunctionOnNextCall(f); |
| 11 | assertEquals(expected, f()); |
| 12 | assertEquals(expected, f()); |
| 13 | } |
| 14 | |
| 15 | function testThrows(f) { |
| 16 | assertThrows(f); |
| 17 | assertThrows(f); |
| 18 | %OptimizeFunctionOnNextCall(f); |
| 19 | assertThrows(f); |
| 20 | assertThrows(f); |
| 21 | } |
| 22 | |
| 23 | function f1() { return undefined; } |
| 24 | test(void 0, f1); |
| 25 | |
| 26 | function f2() { return void 0; } |
| 27 | test(void 0, f2); |
| 28 | |
| 29 | function f3() { return void 0 == void 0; } |
| 30 | test(true, f3); |
| 31 | |
| 32 | function f4() { return void 0 == undefined; } |
| 33 | test(true, f4); |
| 34 | |
| 35 | function f5() { return undefined == void 0; } |
| 36 | test(true, f5); |
| 37 | |
| 38 | function f6() { return "" + undefined; } |
| 39 | test("undefined", f6); |
| 40 | |
| 41 | function f7() { return void 0 === void 0; } |
| 42 | test(true, f7); |
| 43 | |
| 44 | function f8() { return void 0 === undefined; } |
| 45 | test(true, f8); |
| 46 | |
| 47 | function f9() { return undefined === void 0; } |
| 48 | test(true, f9); |
| 49 | |
| 50 | delete undefined; |
| 51 | |
| 52 | function g1() { return undefined; } |
| 53 | test(void 0, g1); |
| 54 | |
| 55 | function g2() { return void 0; } |
| 56 | test(void 0, g2); |
| 57 | |
| 58 | function g3() { return void 0 == void 0; } |
| 59 | test(true, g3); |
| 60 | |
| 61 | function g4() { return void 0 == undefined; } |
| 62 | test(true, g4); |
| 63 | |
| 64 | function g5() { return undefined == void 0; } |
| 65 | test(true, g5); |
| 66 | |
| 67 | function g6() { return "" + undefined; } |
| 68 | test("undefined", g6); |
| 69 | |
| 70 | function g7() { return void 0 === void 0; } |
| 71 | test(true, g7); |
| 72 | |
| 73 | function g8() { return void 0 === undefined; } |
| 74 | test(true, g8); |
| 75 | |
| 76 | function g9() { return undefined === void 0; } |
| 77 | test(true, g9); |
| 78 | |
| 79 | undefined = 111; |
| 80 | |
| 81 | function h1() { return undefined; } |
| 82 | test(void 0, h1); |
| 83 | |
| 84 | function h2() { return void 0; } |
| 85 | test(void 0, h2); |
| 86 | |
| 87 | function h3() { return void 0 == void 0; } |
| 88 | test(true, h3); |
| 89 | |
| 90 | function h4() { return void 0 == undefined; } |
| 91 | test(true, h4); |
| 92 | |
| 93 | function h5() { return undefined == void 0; } |
| 94 | test(true, h5); |
| 95 | |
| 96 | function h6() { return "" + undefined; } |
| 97 | test("undefined", h6); |
| 98 | |
| 99 | function h7() { return void 0 === void 0; } |
| 100 | test(true, h7); |
| 101 | |
| 102 | function h8() { return void 0 === undefined; } |
| 103 | test(true, h8); |
| 104 | |
| 105 | function h9() { return undefined === void 0; } |
| 106 | test(true, h9); |
| 107 | |
| 108 | // ------------- |
| 109 | |
| 110 | function k1() { return this.undefined; } |
| 111 | test(void 0, k1); |
| 112 | |
| 113 | function k2() { return void 0; } |
| 114 | test(void 0, k2); |
| 115 | |
| 116 | function k3() { return void 0 == void 0; } |
| 117 | test(true, k3); |
| 118 | |
| 119 | function k4() { return void 0 == this.undefined; } |
| 120 | test(true, k4); |
| 121 | |
| 122 | function k5() { return this.undefined == void 0; } |
| 123 | test(true, k5); |
| 124 | |
| 125 | function k6() { return "" + this.undefined; } |
| 126 | test("undefined", k6); |
| 127 | |
| 128 | function k7() { return void 0 === void 0; } |
| 129 | test(true, k7); |
| 130 | |
| 131 | function k8() { return void 0 === this.undefined; } |
| 132 | test(true, k8); |
| 133 | |
| 134 | function k9() { return this.undefined === void 0; } |
| 135 | test(true, k9); |
| 136 | |
| 137 | // ------------- |
| 138 | |
| 139 | function m1() { return undefined.x; } |
| 140 | testThrows(m1); |
| 141 | |
| 142 | function m2() { return undefined.undefined; } |
| 143 | testThrows(m2); |
| 144 | |
| 145 | function m3() { return (void 0).x; } |
| 146 | testThrows(m3); |
| 147 | |
| 148 | function m4() { return (void 0).undefined; } |
| 149 | testThrows(m4); |