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comparison: js/src/tests/js1_8/genexps/regress-349326.js
js/src/tests/js1_8/genexps/regress-349326.js
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 //----------------------------------------------------------------------------- | |
| 7 var BUGNUMBER = 349326; | |
| 8 var summary = 'closing generators'; | |
| 9 var actual = 'PASS'; | |
| 10 var expect = 'PASS'; | |
| 11 | |
| 12 | |
| 13 //----------------------------------------------------------------------------- | |
| 14 test(); | |
| 15 //----------------------------------------------------------------------------- | |
| 16 | |
| 17 function test() | |
| 18 { | |
| 19 enterFunc ('test'); | |
| 20 printBugNumber(BUGNUMBER); | |
| 21 printStatus (summary); | |
| 22 | |
| 23 let closed; | |
| 24 | |
| 25 function gen() | |
| 26 { | |
| 27 try { | |
| 28 yield 1; | |
| 29 yield 2; | |
| 30 } finally { | |
| 31 closed = true; | |
| 32 } | |
| 33 } | |
| 34 | |
| 35 // Test that return closes the generator | |
| 36 function test_return() | |
| 37 { | |
| 38 for (let i in gen()) { | |
| 39 if (i != 1) | |
| 40 throw "unexpected generator value"; | |
| 41 return 10; | |
| 42 } | |
| 43 } | |
| 44 | |
| 45 closed = false; | |
| 46 test_return(); | |
| 47 if (closed !== true) | |
| 48 throw "return does not close generator"; | |
| 49 | |
| 50 // test that break closes generator | |
| 51 | |
| 52 closed = false; | |
| 53 for (let i in gen()) { | |
| 54 if (i != 1) | |
| 55 throw "unexpected generator value"; | |
| 56 break; | |
| 57 } | |
| 58 if (closed !== true) | |
| 59 throw "break does not close generator"; | |
| 60 | |
| 61 label: { | |
| 62 for (;;) { | |
| 63 closed = false; | |
| 64 for (let i in gen()) { | |
| 65 if (i != 1) | |
| 66 throw "unexpected generator value"; | |
| 67 break label; | |
| 68 } | |
| 69 } | |
| 70 } | |
| 71 | |
| 72 if (closed !== true) | |
| 73 throw "break does not close generator"; | |
| 74 | |
| 75 // test that an exception closes generator | |
| 76 | |
| 77 function function_that_throws() | |
| 78 { | |
| 79 throw function_that_throws; | |
| 80 } | |
| 81 | |
| 82 try { | |
| 83 closed = false; | |
| 84 for (let i in gen()) { | |
| 85 if (i != 1) | |
| 86 throw "unexpected generator value"; | |
| 87 function_that_throws(); | |
| 88 } | |
| 89 } catch (e) { | |
| 90 if (e !== function_that_throws) | |
| 91 throw e; | |
| 92 } | |
| 93 | |
| 94 if (closed !== true) | |
| 95 throw "exception does not close generator"; | |
| 96 | |
| 97 // Check consistency of finally execution in presence of generators | |
| 98 | |
| 99 let gen2_was_closed = false; | |
| 100 let gen3_was_closed = false; | |
| 101 let finally_was_executed = false; | |
| 102 | |
| 103 function gen2() { | |
| 104 try { | |
| 105 yield 2; | |
| 106 } finally { | |
| 107 if (gen2_was_closed || !finally_was_executed || !gen3_was_closed) | |
| 108 throw "bad oder of gen2 finally execution" | |
| 109 gen2_was_closed = true; | |
| 110 throw gen2; | |
| 111 } | |
| 112 } | |
| 113 | |
| 114 function gen3() { | |
| 115 try { | |
| 116 yield 3; | |
| 117 } finally { | |
| 118 if (gen2_was_closed || finally_was_executed || gen3_was_closed) | |
| 119 throw "bad oder of gen3 finally execution" | |
| 120 gen3_was_closed = true; | |
| 121 } | |
| 122 } | |
| 123 | |
| 124 label2: { | |
| 125 try { | |
| 126 for (let i in gen2()) { | |
| 127 try { | |
| 128 for (let j in gen3()) { | |
| 129 break label2; | |
| 130 } | |
| 131 } finally { | |
| 132 if (gen2_was_closed || finally_was_executed || !gen3_was_closed) | |
| 133 throw "bad oder of try-finally execution"; | |
| 134 finally_was_executed = true; | |
| 135 } | |
| 136 } | |
| 137 throw "gen2 finally should throw"; | |
| 138 } catch (e) { | |
| 139 if (e != gen2) throw e; | |
| 140 } | |
| 141 } | |
| 142 | |
| 143 print("OK"); | |
| 144 | |
| 145 reportCompare(expect, actual, summary); | |
| 146 | |
| 147 exitFunc ('test'); | |
| 148 } |
