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| 1 // Copyright 2017 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 // Test Function.prototype.apply with null/undefined argumentsList |
| 8 (function() { |
| 9 "use strict"; |
| 10 function bar() { return this; } |
| 11 function foo() { return bar.apply(this, null); } |
| 12 |
| 13 assertEquals(42, foo.call(42)); |
| 14 assertEquals(42, foo.call(42)); |
| 15 %OptimizeFunctionOnNextCall(foo); |
| 16 assertEquals(42, foo.call(42)); |
| 17 })(); |
| 18 (function() { |
| 19 "use strict"; |
| 20 function bar() { return this; } |
| 21 function foo() { return bar.apply(this, undefined); } |
| 22 |
| 23 assertEquals(42, foo.call(42)); |
| 24 assertEquals(42, foo.call(42)); |
| 25 %OptimizeFunctionOnNextCall(foo); |
| 26 assertEquals(42, foo.call(42)); |
| 27 })(); |
| 28 |
| 29 // Test Function.prototype.apply within try/catch. |
| 30 (function() { |
| 31 "use strict"; |
| 32 function foo(bar) { |
| 33 try { |
| 34 return Function.prototype.apply.call(bar, bar, arguments); |
| 35 } catch (e) { |
| 36 return 1; |
| 37 } |
| 38 } |
| 39 |
| 40 assertEquals(1, foo()); |
| 41 assertEquals(1, foo()); |
| 42 %OptimizeFunctionOnNextCall(foo); |
| 43 assertEquals(1, foo()); |
| 44 })(); |
| 45 (function() { |
| 46 "use strict"; |
| 47 function foo(bar) { |
| 48 try { |
| 49 return Function.prototype.apply.call(bar, bar, bar); |
| 50 } catch (e) { |
| 51 return 1; |
| 52 } |
| 53 } |
| 54 |
| 55 assertEquals(1, foo()); |
| 56 assertEquals(1, foo()); |
| 57 %OptimizeFunctionOnNextCall(foo); |
| 58 assertEquals(1, foo()); |
| 59 })(); |
| 60 |
| 61 // Test Function.prototype.apply with wrong number of arguments. |
| 62 (function() { |
| 63 "use strict"; |
| 64 function bar() { return this; } |
| 65 function foo() { return bar.apply(); } |
| 66 |
| 67 assertEquals(undefined, foo()); |
| 68 assertEquals(undefined, foo()); |
| 69 %OptimizeFunctionOnNextCall(foo); |
| 70 assertEquals(undefined, foo()); |
| 71 })(); |
| 72 (function() { |
| 73 "use strict"; |
| 74 function bar() { return this; } |
| 75 function foo() { return bar.apply(this); } |
| 76 |
| 77 assertEquals(42, foo.call(42)); |
| 78 assertEquals(42, foo.call(42)); |
| 79 %OptimizeFunctionOnNextCall(foo); |
| 80 assertEquals(42, foo.call(42)); |
| 81 })(); |
| 82 (function() { |
| 83 "use strict"; |
| 84 function bar() { return this; } |
| 85 function foo() { return bar.apply(this, arguments, this); } |
| 86 |
| 87 assertEquals(42, foo.call(42)); |
| 88 assertEquals(42, foo.call(42)); |
| 89 %OptimizeFunctionOnNextCall(foo); |
| 90 assertEquals(42, foo.call(42)); |
| 91 })(); |
| 92 |
| 93 // Test proper order of callable check and array-like iteration |
| 94 // in Function.prototype.apply. |
| 95 (function() { |
| 96 var dummy_length_counter = 0; |
| 97 var dummy = { get length() { ++dummy_length_counter; return 0; } }; |
| 98 |
| 99 function foo() { |
| 100 return Function.prototype.apply.call(undefined, this, dummy); |
| 101 } |
| 102 |
| 103 assertThrows(foo, TypeError); |
| 104 assertThrows(foo, TypeError); |
| 105 %OptimizeFunctionOnNextCall(foo); |
| 106 assertThrows(foo, TypeError); |
| 107 assertEquals(0, dummy_length_counter); |
| 108 })(); |
| 109 (function() { |
| 110 var dummy_length_counter = 0; |
| 111 var dummy = { get length() { ++dummy_length_counter; return 0; } }; |
| 112 |
| 113 function foo() { |
| 114 return Function.prototype.apply.call(null, this, dummy); |
| 115 } |
| 116 |
| 117 assertThrows(foo, TypeError); |
| 118 assertThrows(foo, TypeError); |
| 119 %OptimizeFunctionOnNextCall(foo); |
| 120 assertThrows(foo, TypeError); |
| 121 assertEquals(0, dummy_length_counter); |
| 122 })(); |
| 123 (function() { |
| 124 var dummy_length_counter = 0; |
| 125 var dummy = { get length() { ++dummy_length_counter; return 0; } }; |
| 126 |
| 127 function foo() { |
| 128 return Function.prototype.apply.call(null, this, dummy); |
| 129 } |
| 130 |
| 131 assertThrows(foo, TypeError); |
| 132 assertThrows(foo, TypeError); |
| 133 %OptimizeFunctionOnNextCall(foo); |
| 134 assertThrows(foo, TypeError); |
| 135 assertEquals(0, dummy_length_counter); |
| 136 })(); |
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