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| 1 | +// Copyright JS Foundation and other contributors, http://js.foundation |
| 2 | +// |
| 3 | +// Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | +// you may not use this file except in compliance with the License. |
| 5 | +// You may obtain a copy of the License at |
| 6 | +// |
| 7 | +// http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | +// |
| 9 | +// Unless required by applicable law or agreed to in writing, software |
| 10 | +// distributed under the License is distributed on an "AS IS" BASIS |
| 11 | +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | +// See the License for the specific language governing permissions and |
| 13 | +// limitations under the License. |
| 14 | + |
| 15 | +function createIterable(arr, methods = {}) { |
| 16 | + let iterable = function *() { |
| 17 | + let idx = 0; |
| 18 | + while (idx < arr.length) { |
| 19 | + yield arr[idx]; |
| 20 | + idx++; |
| 21 | + } |
| 22 | + }(); |
| 23 | + iterable['return'] = methods['return']; |
| 24 | + iterable['throw'] = methods['throw']; |
| 25 | + |
| 26 | + return iterable; |
| 27 | +}; |
| 28 | + |
| 29 | +function close1() { |
| 30 | + var closed = false; |
| 31 | + var iter = createIterable([1, 2, 3], { |
| 32 | + 'return': function() { closed = true; return {}; } |
| 33 | + }); |
| 34 | + for (var it of iter) break; |
| 35 | + return closed; |
| 36 | +} |
| 37 | + |
| 38 | +assert(close1()); |
| 39 | + |
| 40 | +function close2() { |
| 41 | + var closed = false; |
| 42 | + var iter = createIterable([1, 2, 3], { |
| 43 | + 'return': function() { closed = true; return {}; } |
| 44 | + }); |
| 45 | + try { |
| 46 | + for (var it of iter) throw 0; |
| 47 | + assert(false); |
| 48 | + } catch(e){ |
| 49 | + assert(e === 0); |
| 50 | + } |
| 51 | + return closed; |
| 52 | +} |
| 53 | + |
| 54 | +assert(close2()); |
| 55 | + |
| 56 | +function close3() { |
| 57 | + var closed = false; |
| 58 | + var iter = createIterable([1, 2, 3], { |
| 59 | + 'return': function() { closed = true; return {}; } |
| 60 | + }); |
| 61 | + for (var it of iter) continue; |
| 62 | + return closed; |
| 63 | +} |
| 64 | + |
| 65 | +assert(!close3()); |
| 66 | + |
| 67 | +function close4() { |
| 68 | + var closed = false; |
| 69 | + var iter = createIterable([1, 2, 3], { |
| 70 | + 'return': function() { closed = true; throw 6; } |
| 71 | + }); |
| 72 | + try { |
| 73 | + for (var it of iter) throw 5; |
| 74 | + assert(false); |
| 75 | + } catch(e) { |
| 76 | + assert(e === 5); |
| 77 | + } |
| 78 | + return closed; |
| 79 | +} |
| 80 | + |
| 81 | +assert(close4()); |
| 82 | + |
| 83 | +function close5() { |
| 84 | + var closed_called = 0; |
| 85 | + var iter = createIterable([1, 2, 3], { |
| 86 | + 'return': function() { closed_called++; throw 6; } |
| 87 | + }); |
| 88 | + try { |
| 89 | + for (var it of iter) { |
| 90 | + for (var it of iter) { |
| 91 | + throw 5; |
| 92 | + } |
| 93 | + assert(false); |
| 94 | + } |
| 95 | + assert(false); |
| 96 | + } catch(e) { |
| 97 | + assert(e === 5); |
| 98 | + } |
| 99 | + return closed_called === 2; |
| 100 | +} |
| 101 | + |
| 102 | +assert(close5()); |
| 103 | + |
| 104 | +function close6() { |
| 105 | + var closed = false; |
| 106 | + var iter = createIterable([1, 2, 3], { |
| 107 | + 'return': function() { closed = true; return {}; } |
| 108 | + }); |
| 109 | + for (var it of iter) {}; |
| 110 | + |
| 111 | + return closed; |
| 112 | +} |
| 113 | + |
| 114 | +assert(!close6()); |
| 115 | + |
| 116 | +var close7_result = false; |
| 117 | +function close7() { |
| 118 | + var iter = createIterable([1, 2, 3], { |
| 119 | + 'return': function() { close7_result = true; throw "5"; } |
| 120 | + }); |
| 121 | + |
| 122 | + for (var it of iter) { |
| 123 | + return "foo"; |
| 124 | + } |
| 125 | +} |
| 126 | + |
| 127 | +try { |
| 128 | + close7(); |
| 129 | + assert(false); |
| 130 | +} catch (e) { |
| 131 | + assert(close7_result); |
| 132 | + assert(e === "5"); |
| 133 | +} |
| 134 | + |
| 135 | +function close8() { |
| 136 | + var iter = createIterable([1, 2, 3], { |
| 137 | + 'return': function() { close8_result = true; throw "5"; } |
| 138 | + }); |
| 139 | + |
| 140 | + for (var it of iter) { |
| 141 | + throw "foo"; |
| 142 | + } |
| 143 | +} |
| 144 | + |
| 145 | +var close8_result = false; |
| 146 | +try { |
| 147 | + close8(); |
| 148 | + assert(false); |
| 149 | +} catch (e) { |
| 150 | + assert(e === "foo"); |
| 151 | + assert(close8_result); |
| 152 | +} |
| 153 | + |
| 154 | +function close9() { |
| 155 | + var closed = false; |
| 156 | + var iter = createIterable([1, 2, 3], { |
| 157 | + 'return': function() { closed = true; throw "5"; } |
| 158 | + }); |
| 159 | + |
| 160 | + try { |
| 161 | + for (var it of iter) { |
| 162 | + break; |
| 163 | + } |
| 164 | + } finally { |
| 165 | + assert(closed); |
| 166 | + throw "foo" |
| 167 | + } |
| 168 | +} |
| 169 | + |
| 170 | +try { |
| 171 | + close9(); |
| 172 | + assert(false); |
| 173 | +} catch (e) { |
| 174 | + assert(e === "foo"); |
| 175 | +} |
| 176 | + |
| 177 | +function close10() { |
| 178 | + var closed = false; |
| 179 | + var iter = createIterable([1, 2, 3], { |
| 180 | + 'return': function() { closed = true; return {}; } |
| 181 | + }); |
| 182 | + |
| 183 | + try { |
| 184 | + for (var it of iter) { |
| 185 | + return "foo"; |
| 186 | + } |
| 187 | + } finally { |
| 188 | + assert(closed); |
| 189 | + throw "bar"; |
| 190 | + } |
| 191 | +} |
| 192 | + |
| 193 | +try { |
| 194 | + close10(); |
| 195 | + assert(false); |
| 196 | +} catch (e) { |
| 197 | + assert(e === "bar"); |
| 198 | +} |
| 199 | + |
| 200 | +function close11() { |
| 201 | + var closed = false; |
| 202 | + var iter = createIterable([1, 2, 3], { |
| 203 | + 'return': function() { closed = true; throw "5"; } |
| 204 | + }); |
| 205 | + |
| 206 | + try { |
| 207 | + for (var it of iter) { |
| 208 | + return "foo"; |
| 209 | + } |
| 210 | + } finally { |
| 211 | + assert(closed); |
| 212 | + throw "bar"; |
| 213 | + } |
| 214 | +} |
| 215 | + |
| 216 | +try { |
| 217 | + close11(); |
| 218 | + assert(false); |
| 219 | +} catch (e) { |
| 220 | + assert(e === "bar"); |
| 221 | +} |
| 222 | + |
| 223 | +function close12() { |
| 224 | + var closed = false; |
| 225 | + var iter = createIterable([1, 2, 3], { |
| 226 | + 'return': function() { closed = true; throw "5"; } |
| 227 | + }); |
| 228 | + |
| 229 | + try { |
| 230 | + for (var it of iter) { |
| 231 | + throw "foo"; |
| 232 | + } |
| 233 | + } finally { |
| 234 | + assert(closed); |
| 235 | + throw "bar"; |
| 236 | + } |
| 237 | +} |
| 238 | + |
| 239 | +try { |
| 240 | + close12(); |
| 241 | + assert(false); |
| 242 | +} catch (e) { |
| 243 | + assert(e === "bar"); |
| 244 | +} |
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