Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1 | // Copyright 2016 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 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 6 | function* g() { yield 42; return 88 }; |
| 7 | |
| 8 | |
| 9 | // Return method is "undefined". |
| 10 | { |
| 11 | g.prototype.return = null; |
| 12 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 13 | |
| 14 | assertEquals(undefined, (() => { |
| 15 | for (var x of g()) { break; } |
| 16 | })()); |
| 17 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 18 | assertEquals(undefined, (() => { |
| 19 | for (let x of g()) { break; } |
| 20 | })()); |
| 21 | |
| 22 | assertEquals(undefined, (() => { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 23 | for (const x of g()) { break; } |
| 24 | })()); |
| 25 | |
| 26 | assertEquals(undefined, (() => { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 27 | for (x of g()) { break; } |
| 28 | })()); |
| 29 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 30 | |
| 31 | assertThrowsEquals(() => { |
| 32 | for (var x of g()) { throw 42; } |
| 33 | }, 42); |
| 34 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 35 | assertThrowsEquals(() => { |
| 36 | for (let x of g()) { throw 42; } |
| 37 | }, 42); |
| 38 | |
| 39 | assertThrowsEquals(() => { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 40 | for (const x of g()) { throw 42; } |
| 41 | }, 42); |
| 42 | |
| 43 | assertThrowsEquals(() => { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 44 | for (x of g()) { throw 42; } |
| 45 | }, 42); |
| 46 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 47 | |
| 48 | assertEquals(42, (() => { |
| 49 | for (var x of g()) { return 42; } |
| 50 | })()); |
| 51 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 52 | assertEquals(42, (() => { |
| 53 | for (let x of g()) { return 42; } |
| 54 | })()); |
| 55 | |
| 56 | assertEquals(42, (() => { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 57 | for (const x of g()) { return 42; } |
| 58 | })()); |
| 59 | |
| 60 | assertEquals(42, (() => { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 61 | for (x of g()) { return 42; } |
| 62 | })()); |
| 63 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 64 | |
| 65 | assertEquals(42, eval('for (var x of g()) { x; }')); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 66 | |
| 67 | assertEquals(42, eval('for (let x of g()) { x; }')); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 68 | |
| 69 | assertEquals(42, eval('for (const x of g()) { x; }')); |
| 70 | |
| 71 | assertEquals(42, eval('for (x of g()) { x; }')); |
| 72 | |
| 73 | |
| 74 | assertEquals(42, (() => { |
| 75 | var [x] = g(); return x; |
| 76 | })()); |
| 77 | |
| 78 | assertEquals(42, (() => { |
| 79 | let [x] = g(); return x; |
| 80 | })()); |
| 81 | |
| 82 | assertEquals(42, (() => { |
| 83 | const [x] = g(); return x; |
| 84 | })()); |
| 85 | |
| 86 | assertEquals(42, (() => { |
| 87 | [x] = g(); return x; |
| 88 | })()); |
| 89 | |
| 90 | assertEquals(42, |
| 91 | (([x]) => x)(g()) |
| 92 | ); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 93 | } |
| 94 | |
| 95 | |
| 96 | // Return method is not callable. |
| 97 | { |
| 98 | g.prototype.return = 666; |
| 99 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 100 | |
| 101 | assertThrows(() => { |
| 102 | for (var x of g()) { break; } |
| 103 | }, TypeError); |
| 104 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 105 | assertThrows(() => { |
| 106 | for (let x of g()) { break; } |
| 107 | }, TypeError); |
| 108 | |
| 109 | assertThrows(() => { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 110 | for (const x of g()) { break; } |
| 111 | }, TypeError); |
| 112 | |
| 113 | assertThrows(() => { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 114 | for (x of g()) { break; } |
| 115 | }, TypeError); |
| 116 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 117 | |
| 118 | assertThrows(() => { |
| 119 | for (var x of g()) { throw 666; } |
| 120 | }, TypeError); |
| 121 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 122 | assertThrows(() => { |
| 123 | for (let x of g()) { throw 666; } |
| 124 | }, TypeError); |
| 125 | |
| 126 | assertThrows(() => { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 127 | for (const x of g()) { throw 666; } |
| 128 | }, TypeError); |
| 129 | |
| 130 | assertThrows(() => { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 131 | for (x of g()) { throw 666; } |
| 132 | }, TypeError); |
| 133 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 134 | |
| 135 | assertThrows(() => { |
| 136 | for (var x of g()) { return 666; } |
| 137 | }, TypeError); |
| 138 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 139 | assertThrows(() => { |
| 140 | for (let x of g()) { return 666; } |
| 141 | }, TypeError); |
| 142 | |
| 143 | assertThrows(() => { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 144 | for (const x of g()) { return 666; } |
| 145 | }, TypeError); |
| 146 | |
| 147 | assertThrows(() => { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 148 | for (x of g()) { return 666; } |
| 149 | }, TypeError); |
| 150 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 151 | |
| 152 | assertEquals(42, eval('for (var x of g()) { x; }')); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 153 | |
| 154 | assertEquals(42, eval('for (let x of g()) { x; }')); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 155 | |
| 156 | assertEquals(42, eval('for (const x of g()) { x; }')); |
| 157 | |
| 158 | assertEquals(42, eval('for (x of g()) { x; }')); |
| 159 | |
| 160 | |
| 161 | assertThrows(() => { |
| 162 | var [x] = g(); return x; |
| 163 | }, TypeError); |
| 164 | |
| 165 | assertThrows(() => { |
| 166 | let [x] = g(); return x; |
| 167 | }, TypeError); |
| 168 | |
| 169 | assertThrows(() => { |
| 170 | const [x] = g(); return x; |
| 171 | }, TypeError); |
| 172 | |
| 173 | assertThrows(() => { |
| 174 | [x] = g(); return x; |
| 175 | }, TypeError); |
| 176 | |
| 177 | assertThrows(() => { |
| 178 | (([x]) => x)(g()); |
| 179 | }, TypeError); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 180 | } |
| 181 | |
| 182 | |
| 183 | // Return method does not return an object. |
| 184 | { |
| 185 | g.prototype.return = () => 666; |
| 186 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 187 | |
| 188 | assertThrows(() => { |
| 189 | for (var x of g()) { break; } |
| 190 | }, TypeError); |
| 191 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 192 | assertThrows(() => { |
| 193 | for (let x of g()) { break; } |
| 194 | }, TypeError); |
| 195 | |
| 196 | assertThrows(() => { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 197 | for (const x of g()) { break; } |
| 198 | }, TypeError); |
| 199 | |
| 200 | assertThrows(() => { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 201 | for (x of g()) { break; } |
| 202 | }, TypeError); |
| 203 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 204 | |
| 205 | // Throw from the body of a for loop 'wins' vs throw |
| 206 | // originating from a bad 'return' value. |
| 207 | |
| 208 | assertThrowsEquals(() => { |
| 209 | for (var x of g()) { throw 666; } |
| 210 | }, 666); |
| 211 | |
| 212 | assertThrowsEquals(() => { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 213 | for (let x of g()) { throw 666; } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 214 | }, 666); |
| 215 | |
| 216 | assertThrowsEquals(() => { |
| 217 | for (const x of g()) { throw 666; } |
| 218 | }, 666); |
| 219 | |
| 220 | assertThrowsEquals(() => { |
| 221 | for (x of g()) { throw 666; } |
| 222 | }, 666); |
| 223 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 224 | |
| 225 | assertThrows(() => { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 226 | for (var x of g()) { return 666; } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 227 | }, TypeError); |
| 228 | |
| 229 | assertThrows(() => { |
| 230 | for (let x of g()) { return 666; } |
| 231 | }, TypeError); |
| 232 | |
| 233 | assertThrows(() => { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 234 | for (const x of g()) { return 666; } |
| 235 | }, TypeError); |
| 236 | |
| 237 | assertThrows(() => { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 238 | for (x of g()) { return 666; } |
| 239 | }, TypeError); |
| 240 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 241 | |
| 242 | assertEquals(42, eval('for (var x of g()) { x; }')); |
| 243 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 244 | assertEquals(42, eval('for (let x of g()) { x; }')); |
| 245 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 246 | assertEquals(42, eval('for (const x of g()) { x; }')); |
| 247 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 248 | assertEquals(42, eval('for (x of g()) { x; }')); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 249 | |
| 250 | |
| 251 | assertThrows(() => { |
| 252 | var [x] = g(); return x; |
| 253 | }, TypeError); |
| 254 | |
| 255 | assertThrows(() => { |
| 256 | let [x] = g(); return x; |
| 257 | }, TypeError); |
| 258 | |
| 259 | assertThrows(() => { |
| 260 | const [x] = g(); return x; |
| 261 | }, TypeError); |
| 262 | |
| 263 | assertThrows(() => { |
| 264 | [x] = g(); return x; |
| 265 | }, TypeError); |
| 266 | |
| 267 | assertThrows(() => { |
| 268 | (([x]) => x)(g()); |
| 269 | }, TypeError); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 270 | } |
| 271 | |
| 272 | |
| 273 | // Return method returns an object. |
| 274 | { |
| 275 | let log = []; |
| 276 | g.prototype.return = (...args) => { log.push(args); return {} }; |
| 277 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 278 | |
| 279 | log = []; |
| 280 | for (var x of g()) { break; } |
| 281 | assertEquals([[]], log); |
| 282 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 283 | log = []; |
| 284 | for (let x of g()) { break; } |
| 285 | assertEquals([[]], log); |
| 286 | |
| 287 | log = []; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 288 | for (const x of g()) { break; } |
| 289 | assertEquals([[]], log); |
| 290 | |
| 291 | log = []; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 292 | for (x of g()) { break; } |
| 293 | assertEquals([[]], log); |
| 294 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 295 | |
| 296 | log = []; |
| 297 | assertThrowsEquals(() => { |
| 298 | for (var x of g()) { throw 42; } |
| 299 | }, 42); |
| 300 | assertEquals([[]], log); |
| 301 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 302 | log = []; |
| 303 | assertThrowsEquals(() => { |
| 304 | for (let x of g()) { throw 42; } |
| 305 | }, 42); |
| 306 | assertEquals([[]], log); |
| 307 | |
| 308 | log = []; |
| 309 | assertThrowsEquals(() => { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 310 | for (const x of g()) { throw 42; } |
| 311 | }, 42); |
| 312 | assertEquals([[]], log); |
| 313 | |
| 314 | log = []; |
| 315 | assertThrowsEquals(() => { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 316 | for (x of g()) { throw 42; } |
| 317 | }, 42); |
| 318 | assertEquals([[]], log); |
| 319 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 320 | |
| 321 | log = []; |
| 322 | assertEquals(42, (() => { |
| 323 | for (var x of g()) { return 42; } |
| 324 | })()); |
| 325 | assertEquals([[]], log); |
| 326 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 327 | log = []; |
| 328 | assertEquals(42, (() => { |
| 329 | for (let x of g()) { return 42; } |
| 330 | })()); |
| 331 | assertEquals([[]], log); |
| 332 | |
| 333 | log = []; |
| 334 | assertEquals(42, (() => { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 335 | for (const x of g()) { return 42; } |
| 336 | })()); |
| 337 | assertEquals([[]], log); |
| 338 | |
| 339 | log = []; |
| 340 | assertEquals(42, (() => { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 341 | for (x of g()) { return 42; } |
| 342 | })()); |
| 343 | assertEquals([[]], log); |
| 344 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 345 | |
| 346 | log = []; |
| 347 | assertEquals(42, eval('for (var x of g()) { x; }')); |
| 348 | assertEquals([], log); |
| 349 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 350 | log = []; |
| 351 | assertEquals(42, eval('for (let x of g()) { x; }')); |
| 352 | assertEquals([], log); |
| 353 | |
| 354 | log = []; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 355 | assertEquals(42, eval('for (const x of g()) { x; }')); |
| 356 | assertEquals([], log); |
| 357 | |
| 358 | log = []; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 359 | assertEquals(42, eval('for (x of g()) { x; }')); |
| 360 | assertEquals([], log); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 361 | |
| 362 | |
| 363 | // Even if doing the assignment throws, still call return |
| 364 | log = []; |
| 365 | x = { set attr(_) { throw 1234; } }; |
| 366 | assertThrowsEquals(() => { |
| 367 | for (x.attr of g()) { throw 456; } |
| 368 | }, 1234); |
| 369 | assertEquals([[]], log); |
| 370 | |
| 371 | |
| 372 | log = []; |
| 373 | assertEquals(42, (() => { |
| 374 | var [x] = g(); return x; |
| 375 | })()); |
| 376 | assertEquals([[]], log); |
| 377 | |
| 378 | log = []; |
| 379 | assertEquals(42, (() => { |
| 380 | let [x] = g(); return x; |
| 381 | })()); |
| 382 | assertEquals([[]], log); |
| 383 | |
| 384 | log = []; |
| 385 | assertEquals(42, (() => { |
| 386 | const [x] = g(); return x; |
| 387 | })()); |
| 388 | assertEquals([[]], log); |
| 389 | |
| 390 | log = []; |
| 391 | assertEquals(42, (() => { |
| 392 | [x] = g(); return x; |
| 393 | })()); |
| 394 | assertEquals([[]], log); |
| 395 | |
| 396 | log = [] |
| 397 | assertEquals(42, |
| 398 | (([x]) => x)(g()) |
| 399 | ); |
| 400 | assertEquals([[]], log); |
| 401 | |
| 402 | |
| 403 | log = []; |
| 404 | assertEquals(42, (() => { |
| 405 | var [x,] = g(); return x; |
| 406 | })()); |
| 407 | assertEquals([[]], log); |
| 408 | |
| 409 | log = []; |
| 410 | assertEquals(42, (() => { |
| 411 | let [x,] = g(); return x; |
| 412 | })()); |
| 413 | assertEquals([[]], log); |
| 414 | |
| 415 | log = []; |
| 416 | assertEquals(42, (() => { |
| 417 | const [x,] = g(); return x; |
| 418 | })()); |
| 419 | assertEquals([[]], log); |
| 420 | |
| 421 | log = []; |
| 422 | assertEquals(42, (() => { |
| 423 | [x,] = g(); return x; |
| 424 | })()); |
| 425 | assertEquals([[]], log); |
| 426 | |
| 427 | log = [] |
| 428 | assertEquals(42, |
| 429 | (([x,]) => x)(g()) |
| 430 | ); |
| 431 | assertEquals([[]], log); |
| 432 | |
| 433 | |
| 434 | log = []; |
| 435 | assertEquals(42, (() => { |
| 436 | var [x,,] = g(); return x; |
| 437 | })()); |
| 438 | assertEquals([], log); |
| 439 | |
| 440 | log = []; |
| 441 | assertEquals(42, (() => { |
| 442 | let [x,,] = g(); return x; |
| 443 | })()); |
| 444 | assertEquals([], log); |
| 445 | |
| 446 | log = []; |
| 447 | assertEquals(42, (() => { |
| 448 | const [x,,] = g(); return x; |
| 449 | })()); |
| 450 | assertEquals([], log); |
| 451 | |
| 452 | log = []; |
| 453 | assertEquals(42, (() => { |
| 454 | [x,,] = g(); return x; |
| 455 | })()); |
| 456 | assertEquals([], log); |
| 457 | |
| 458 | log = [] |
| 459 | assertEquals(42, |
| 460 | (([x,,]) => x)(g()) |
| 461 | ); |
| 462 | assertEquals([], log); |
| 463 | |
| 464 | |
| 465 | log = []; |
| 466 | assertEquals([42, undefined], (() => { |
| 467 | var [x, y] = g(); return [x, y]; |
| 468 | })()); |
| 469 | assertEquals([], log); |
| 470 | |
| 471 | log = []; |
| 472 | assertEquals([42, undefined], (() => { |
| 473 | let [x, y] = g(); return [x, y]; |
| 474 | })()); |
| 475 | assertEquals([], log); |
| 476 | |
| 477 | log = []; |
| 478 | assertEquals([42, undefined], (() => { |
| 479 | const [x, y] = g(); return [x, y]; |
| 480 | })()); |
| 481 | assertEquals([], log); |
| 482 | |
| 483 | log = []; |
| 484 | assertEquals([42, undefined], (() => { |
| 485 | [x, y] = g(); return [x, y]; |
| 486 | })()); |
| 487 | assertEquals([], log); |
| 488 | |
| 489 | log = [] |
| 490 | assertEquals([42, undefined], |
| 491 | (([x, y]) => [x, y])(g()) |
| 492 | ); |
| 493 | assertEquals([], log); |
| 494 | |
| 495 | |
| 496 | log = []; |
| 497 | assertEquals([42], (() => { |
| 498 | var [...x] = g(); return x; |
| 499 | })()); |
| 500 | assertEquals([], log); |
| 501 | |
| 502 | log = []; |
| 503 | assertEquals([42], (() => { |
| 504 | let [...x] = g(); return x; |
| 505 | })()); |
| 506 | assertEquals([], log); |
| 507 | |
| 508 | log = []; |
| 509 | assertEquals([42], (() => { |
| 510 | const [...x] = g(); return x; |
| 511 | })()); |
| 512 | assertEquals([], log); |
| 513 | |
| 514 | log = []; |
| 515 | assertEquals([42], (() => { |
| 516 | [...x] = g(); return x; |
| 517 | })()); |
| 518 | assertEquals([], log); |
| 519 | |
| 520 | log = [] |
| 521 | assertEquals([42], |
| 522 | (([...x]) => x)(g()) |
| 523 | ); |
| 524 | assertEquals([], log); |
| 525 | |
| 526 | |
| 527 | log = []; |
| 528 | assertEquals([42, []], (() => { |
| 529 | var [x, ...y] = g(); return [x, y]; |
| 530 | })()); |
| 531 | assertEquals([], log); |
| 532 | |
| 533 | log = []; |
| 534 | assertEquals([42, []], (() => { |
| 535 | let [x, ...y] = g(); return [x, y]; |
| 536 | })()); |
| 537 | assertEquals([], log); |
| 538 | |
| 539 | log = []; |
| 540 | assertEquals([42, []], (() => { |
| 541 | const [x, ...y] = g(); return [x, y]; |
| 542 | })()); |
| 543 | assertEquals([], log); |
| 544 | |
| 545 | log = []; |
| 546 | assertEquals([42, []], (() => { |
| 547 | [x, ...y] = g(); return [x, y]; |
| 548 | })()); |
| 549 | assertEquals([], log); |
| 550 | |
| 551 | log = [] |
| 552 | assertEquals([42, []], |
| 553 | (([x, ...y]) => [x, y])(g()) |
| 554 | ); |
| 555 | assertEquals([], log); |
| 556 | |
| 557 | |
| 558 | log = []; |
| 559 | assertEquals([], (() => { |
| 560 | var [] = g(); return []; |
| 561 | })()); |
| 562 | assertEquals([[]], log); |
| 563 | |
| 564 | log = []; |
| 565 | assertEquals([], (() => { |
| 566 | let [] = g(); return []; |
| 567 | })()); |
| 568 | assertEquals([[]], log); |
| 569 | |
| 570 | log = []; |
| 571 | assertEquals([], (() => { |
| 572 | const [] = g(); return []; |
| 573 | })()); |
| 574 | assertEquals([[]], log); |
| 575 | |
| 576 | log = []; |
| 577 | assertEquals([], (() => { |
| 578 | [] = g(); return []; |
| 579 | })()); |
| 580 | assertEquals([[]], log); |
| 581 | |
| 582 | log = [] |
| 583 | assertEquals([], |
| 584 | (([]) => [])(g()) |
| 585 | ); |
| 586 | assertEquals([[]], log); |
| 587 | |
| 588 | |
| 589 | log = []; |
| 590 | assertEquals([], (() => { |
| 591 | var [...[]] = g(); return []; |
| 592 | })()); |
| 593 | assertEquals([], log); |
| 594 | |
| 595 | log = []; |
| 596 | assertEquals([], (() => { |
| 597 | let [...[]] = g(); return []; |
| 598 | })()); |
| 599 | assertEquals([], log); |
| 600 | |
| 601 | log = []; |
| 602 | assertEquals([], (() => { |
| 603 | const [...[]] = g(); return []; |
| 604 | })()); |
| 605 | assertEquals([], log); |
| 606 | |
| 607 | log = []; |
| 608 | assertEquals([], (() => { |
| 609 | [...[]] = g(); return []; |
| 610 | })()); |
| 611 | assertEquals([], log); |
| 612 | |
| 613 | log = [] |
| 614 | assertEquals([], |
| 615 | (([...[]]) => [])(g()) |
| 616 | ); |
| 617 | assertEquals([], log); |
| 618 | |
| 619 | |
| 620 | log = []; |
| 621 | assertEquals([42], (() => { |
| 622 | var [...[x]] = g(); return [x]; |
| 623 | })()); |
| 624 | assertEquals([], log); |
| 625 | |
| 626 | log = []; |
| 627 | assertEquals([42], (() => { |
| 628 | let [...[x]] = g(); return [x]; |
| 629 | })()); |
| 630 | assertEquals([], log); |
| 631 | |
| 632 | log = []; |
| 633 | assertEquals([42], (() => { |
| 634 | const [...[x]] = g(); return [x]; |
| 635 | })()); |
| 636 | assertEquals([], log); |
| 637 | |
| 638 | log = []; |
| 639 | assertEquals([42], (() => { |
| 640 | [...[x]] = g(); return [x]; |
| 641 | })()); |
| 642 | assertEquals([], log); |
| 643 | |
| 644 | log = [] |
| 645 | assertEquals([42], |
| 646 | (([...[x]]) => [x])(g()) |
| 647 | ); |
| 648 | assertEquals([], log); |
| 649 | |
| 650 | |
| 651 | log = []; |
| 652 | assertEquals([42, undefined], (() => { |
| 653 | var [...[x, y]] = g(); return [x, y]; |
| 654 | })()); |
| 655 | assertEquals([], log); |
| 656 | |
| 657 | log = []; |
| 658 | assertEquals([42, undefined], (() => { |
| 659 | let [...[x, y]] = g(); return [x, y]; |
| 660 | })()); |
| 661 | assertEquals([], log); |
| 662 | |
| 663 | log = []; |
| 664 | assertEquals([42, undefined], (() => { |
| 665 | const [...[x, y]] = g(); return [x, y]; |
| 666 | })()); |
| 667 | assertEquals([], log); |
| 668 | |
| 669 | log = []; |
| 670 | assertEquals([42, undefined], (() => { |
| 671 | [...[x, y]] = g(); return [x, y]; |
| 672 | })()); |
| 673 | assertEquals([], log); |
| 674 | |
| 675 | log = [] |
| 676 | assertEquals([42, undefined], |
| 677 | (([...[x, y]]) => [x, y])(g()) |
| 678 | ); |
| 679 | assertEquals([], log); |
| 680 | |
| 681 | |
| 682 | log = [] |
| 683 | assertThrowsEquals(() => { |
| 684 | let x = { set foo(_) { throw 666; } }; |
| 685 | [x.foo] = g(); |
| 686 | }, 666); |
| 687 | assertEquals([[]], log); |
| 688 | |
| 689 | |
| 690 | log = [] |
| 691 | assertThrows(() => { |
| 692 | var [[]] = g(); |
| 693 | }, TypeError); |
| 694 | assertEquals([[]], log); |
| 695 | |
| 696 | log = [] |
| 697 | assertThrows(() => { |
| 698 | let [[]] = g(); |
| 699 | }, TypeError); |
| 700 | assertEquals([[]], log); |
| 701 | |
| 702 | log = [] |
| 703 | assertThrows(() => { |
| 704 | const [[]] = g(); |
| 705 | }, TypeError); |
| 706 | assertEquals([[]], log); |
| 707 | |
| 708 | log = [] |
| 709 | assertThrows(() => { |
| 710 | [[]] = g(); |
| 711 | }, TypeError); |
| 712 | assertEquals([[]], log); |
| 713 | |
| 714 | log = [] |
| 715 | assertThrows(() => { |
| 716 | (([[]]) => 0)(g()); |
| 717 | }, TypeError); |
| 718 | assertEquals([[]], log); |
| 719 | |
| 720 | |
| 721 | log = [] |
| 722 | assertThrows(() => { |
| 723 | var [...[[]]] = g(); |
| 724 | }, TypeError); |
| 725 | assertEquals([], log); |
| 726 | |
| 727 | log = [] |
| 728 | assertThrows(() => { |
| 729 | let [...[[]]] = g(); |
| 730 | }, TypeError); |
| 731 | assertEquals([], log); |
| 732 | |
| 733 | log = [] |
| 734 | assertThrows(() => { |
| 735 | const [...[[]]] = g(); |
| 736 | }, TypeError); |
| 737 | assertEquals([], log); |
| 738 | |
| 739 | log = [] |
| 740 | assertThrows(() => { |
| 741 | [...[[]]] = g(); |
| 742 | }, TypeError); |
| 743 | assertEquals([], log); |
| 744 | |
| 745 | log = [] |
| 746 | assertThrows(() => { |
| 747 | (([...[[]]]) => 0)(g()); |
| 748 | }, TypeError); |
| 749 | assertEquals([], log); |
| 750 | |
| 751 | |
| 752 | { |
| 753 | let backup = Array.prototype[Symbol.iterator]; |
| 754 | Array.prototype[Symbol.iterator] = () => g(); |
| 755 | |
| 756 | |
| 757 | log = []; |
| 758 | assertDoesNotThrow(() => { |
| 759 | var [x, ...[y]] = [1, 2, 3] |
| 760 | }); |
| 761 | assertEquals(log, [[]]); |
| 762 | |
| 763 | log = []; |
| 764 | assertDoesNotThrow(() => { |
| 765 | let [x, ...[y]] = [1, 2, 3]; |
| 766 | }); |
| 767 | assertEquals(log, [[]]); |
| 768 | |
| 769 | log = []; |
| 770 | assertDoesNotThrow(() => { |
| 771 | const [x, ...[y]] = [1, 2, 3]; |
| 772 | }); |
| 773 | assertEquals(log, [[]]); |
| 774 | |
| 775 | log = []; |
| 776 | assertDoesNotThrow(() => { |
| 777 | (([x, ...[y]]) => {})([1, 2, 3]); |
| 778 | }); |
| 779 | assertEquals(log, [[]]); |
| 780 | |
| 781 | |
| 782 | log = []; |
| 783 | assertThrows(() => { |
| 784 | var [x, ...[[]]] = [1, 2, 3]; |
| 785 | }, TypeError); |
| 786 | assertEquals(log, [[]]); |
| 787 | |
| 788 | log = []; |
| 789 | assertThrows(() => { |
| 790 | let [x, ...[[]]] = [1, 2, 3]; |
| 791 | }, TypeError); |
| 792 | assertEquals(log, [[]]); |
| 793 | |
| 794 | log = []; |
| 795 | assertThrows(() => { |
| 796 | const [x, ...[[]]] = [1, 2, 3]; |
| 797 | }, TypeError); |
| 798 | assertEquals(log, [[]]); |
| 799 | |
| 800 | log = []; |
| 801 | assertThrows(() => { |
| 802 | (([x, ...[[]]]) => {})([1, 2, 3]); |
| 803 | }, TypeError); |
| 804 | assertEquals(log, [[]]); |
| 805 | |
| 806 | |
| 807 | log = []; |
| 808 | assertDoesNotThrow(() => { |
| 809 | var [x, ...[...y]] = [1, 2, 3]; |
| 810 | }); |
| 811 | assertEquals(log, []); |
| 812 | |
| 813 | log = []; |
| 814 | assertDoesNotThrow(() => { |
| 815 | let [x, ...[...y]] = [1, 2, 3]; |
| 816 | }); |
| 817 | assertEquals(log, []); |
| 818 | |
| 819 | log = []; |
| 820 | assertDoesNotThrow(() => { |
| 821 | const [x, ...[...y]] = [1, 2, 3]; |
| 822 | }); |
| 823 | assertEquals(log, []); |
| 824 | |
| 825 | log = []; |
| 826 | assertDoesNotThrow(() => { |
| 827 | (([x, ...[...y]]) => {})([1, 2, 3]); |
| 828 | }); |
| 829 | assertEquals(log, []); |
| 830 | |
| 831 | |
| 832 | Array.prototype[Symbol.iterator] = backup; |
| 833 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 834 | } |
| 835 | |
| 836 | |
| 837 | // Return method throws. |
| 838 | { |
| 839 | let log = []; |
| 840 | g.prototype.return = (...args) => { log.push(args); throw 23 }; |
| 841 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 842 | |
| 843 | log = []; |
| 844 | assertThrowsEquals(() => { |
| 845 | for (var x of g()) { break; } |
| 846 | }, 23); |
| 847 | assertEquals([[]], log); |
| 848 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 849 | log = []; |
| 850 | assertThrowsEquals(() => { |
| 851 | for (let x of g()) { break; } |
| 852 | }, 23); |
| 853 | assertEquals([[]], log); |
| 854 | |
| 855 | log = []; |
| 856 | assertThrowsEquals(() => { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 857 | for (const x of g()) { break; } |
| 858 | }, 23); |
| 859 | assertEquals([[]], log); |
| 860 | |
| 861 | log = []; |
| 862 | assertThrowsEquals(() => { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 863 | for (x of g()) { break; } |
| 864 | }, 23); |
| 865 | assertEquals([[]], log); |
| 866 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 867 | |
| 868 | log = []; |
| 869 | assertThrowsEquals(() => { |
| 870 | for (var x of g()) { throw 42; } |
| 871 | }, 42); |
| 872 | assertEquals([[]], log); |
| 873 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 874 | log = []; |
| 875 | assertThrowsEquals(() => { |
| 876 | for (let x of g()) { throw 42; } |
| 877 | }, 42); |
| 878 | assertEquals([[]], log); |
| 879 | |
| 880 | log = []; |
| 881 | assertThrowsEquals(() => { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 882 | for (const x of g()) { throw 42; } |
| 883 | }, 42); |
| 884 | assertEquals([[]], log); |
| 885 | |
| 886 | log = []; |
| 887 | assertThrowsEquals(() => { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 888 | for (x of g()) { throw 42; } |
| 889 | }, 42); |
| 890 | assertEquals([[]], log); |
| 891 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 892 | |
| 893 | log = []; |
| 894 | assertThrowsEquals(() => { |
| 895 | for (var x of g()) { return 42; } |
| 896 | }, 23); |
| 897 | assertEquals([[]], log); |
| 898 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 899 | log = []; |
| 900 | assertThrowsEquals(() => { |
| 901 | for (let x of g()) { return 42; } |
| 902 | }, 23); |
| 903 | assertEquals([[]], log); |
| 904 | |
| 905 | log = []; |
| 906 | assertThrowsEquals(() => { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 907 | for (const x of g()) { return 42; } |
| 908 | }, 23); |
| 909 | assertEquals([[]], log); |
| 910 | |
| 911 | log = []; |
| 912 | assertThrowsEquals(() => { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 913 | for (x of g()) { return 42; } |
| 914 | }, 23); |
| 915 | assertEquals([[]], log); |
| 916 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 917 | |
| 918 | log = []; |
| 919 | assertEquals(42, eval('for (var x of g()) { x; }')); |
| 920 | assertEquals([], log); |
| 921 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 922 | log = []; |
| 923 | assertEquals(42, eval('for (let x of g()) { x; }')); |
| 924 | assertEquals([], log); |
| 925 | |
| 926 | log = []; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 927 | assertEquals(42, eval('for (const x of g()) { x; }')); |
| 928 | assertEquals([], log); |
| 929 | |
| 930 | log = []; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 931 | assertEquals(42, eval('for (x of g()) { x; }')); |
| 932 | assertEquals([], log); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 933 | |
| 934 | |
| 935 | log = []; |
| 936 | assertThrowsEquals(() => { |
| 937 | var [x] = g(); return x; |
| 938 | }, 23); |
| 939 | assertEquals([[]], log); |
| 940 | |
| 941 | log = []; |
| 942 | assertThrowsEquals(() => { |
| 943 | let [x] = g(); return x; |
| 944 | }, 23); |
| 945 | assertEquals([[]], log); |
| 946 | |
| 947 | log = []; |
| 948 | assertThrowsEquals(() => { |
| 949 | const [x] = g(); return x; |
| 950 | }, 23); |
| 951 | assertEquals([[]], log); |
| 952 | |
| 953 | log = []; |
| 954 | assertThrowsEquals(() => { |
| 955 | [x] = g(); return x; |
| 956 | }, 23); |
| 957 | assertEquals([[]], log); |
| 958 | |
| 959 | log = []; |
| 960 | assertThrowsEquals(() => { |
| 961 | (([x]) => x)(g()) |
| 962 | }, 23); |
| 963 | assertEquals([[]], log); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 964 | } |
| 965 | |
| 966 | |
| 967 | // Next method throws. |
| 968 | { |
| 969 | g.prototype.next = () => { throw 666; }; |
| 970 | g.prototype.return = () => { assertUnreachable() }; |
| 971 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 972 | |
| 973 | assertThrowsEquals(() => { |
| 974 | for (var x of g()) {} |
| 975 | }, 666); |
| 976 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 977 | assertThrowsEquals(() => { |
| 978 | for (let x of g()) {} |
| 979 | }, 666); |
| 980 | |
| 981 | assertThrowsEquals(() => { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 982 | for (const x of g()) {} |
| 983 | }, 666); |
| 984 | |
| 985 | assertThrowsEquals(() => { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 986 | for (x of g()) {} |
| 987 | }, 666); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 988 | |
| 989 | assertThrowsEquals(() => { |
| 990 | var [x] = g(); |
| 991 | }, 666); |
| 992 | |
| 993 | assertThrowsEquals(() => { |
| 994 | let [x] = g(); |
| 995 | }, 666); |
| 996 | |
| 997 | assertThrowsEquals(() => { |
| 998 | const [x] = g(); |
| 999 | }, 666); |
| 1000 | |
| 1001 | assertThrowsEquals(() => { |
| 1002 | [x] = g(); |
| 1003 | }, 666); |
| 1004 | |
| 1005 | assertThrowsEquals(() => { |
| 1006 | (([x]) => x)(g()); |
| 1007 | }, 666); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1008 | |
| 1009 | assertThrowsEquals(() => { |
| 1010 | var [...x] = g(); |
| 1011 | }, 666); |
| 1012 | |
| 1013 | assertThrowsEquals(() => { |
| 1014 | let [...x] = g(); |
| 1015 | }, 666); |
| 1016 | |
| 1017 | assertThrowsEquals(() => { |
| 1018 | const [...x] = g(); |
| 1019 | }, 666); |
| 1020 | |
| 1021 | assertThrowsEquals(() => { |
| 1022 | [...x] = g(); |
| 1023 | }, 666); |
| 1024 | |
| 1025 | assertThrowsEquals(() => { |
| 1026 | (([...x]) => x)(g()); |
| 1027 | }, 666); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1028 | } |
| 1029 | |
| 1030 | |
| 1031 | // Value throws. |
| 1032 | { |
| 1033 | g.prototype.next = () => ({get value() {throw 666}}); |
| 1034 | g.prototype.return = () => { assertUnreachable() }; |
| 1035 | |
| 1036 | |
| 1037 | assertThrowsEquals(() => { |
| 1038 | for (var x of g()) {} |
| 1039 | }, 666); |
| 1040 | |
| 1041 | assertThrowsEquals(() => { |
| 1042 | for (let x of g()) {} |
| 1043 | }, 666); |
| 1044 | |
| 1045 | assertThrowsEquals(() => { |
| 1046 | for (const x of g()) {} |
| 1047 | }, 666); |
| 1048 | |
| 1049 | assertThrowsEquals(() => { |
| 1050 | for (x of g()) {} |
| 1051 | }, 666); |
| 1052 | |
| 1053 | assertThrowsEquals(() => { |
| 1054 | var [x] = g(); |
| 1055 | }, 666); |
| 1056 | |
| 1057 | assertThrowsEquals(() => { |
| 1058 | let [x] = g(); |
| 1059 | }, 666); |
| 1060 | |
| 1061 | assertThrowsEquals(() => { |
| 1062 | const [x] = g(); |
| 1063 | }, 666); |
| 1064 | |
| 1065 | assertThrowsEquals(() => { |
| 1066 | [x] = g(); |
| 1067 | }, 666); |
| 1068 | |
| 1069 | assertThrowsEquals(() => { |
| 1070 | (([x]) => x)(g()); |
| 1071 | }, 666); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1072 | |
| 1073 | assertThrowsEquals(() => { |
| 1074 | var [...x] = g(); |
| 1075 | }, 666); |
| 1076 | |
| 1077 | assertThrowsEquals(() => { |
| 1078 | let [...x] = g(); |
| 1079 | }, 666); |
| 1080 | |
| 1081 | assertThrowsEquals(() => { |
| 1082 | const [...x] = g(); |
| 1083 | }, 666); |
| 1084 | |
| 1085 | assertThrowsEquals(() => { |
| 1086 | [...x] = g(); |
| 1087 | }, 666); |
| 1088 | |
| 1089 | assertThrowsEquals(() => { |
| 1090 | (([...x]) => x)(g()); |
| 1091 | }, 666); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1092 | } |
| 1093 | |
| 1094 | |
| 1095 | // Done throws. |
| 1096 | { |
| 1097 | g.prototype.next = () => ({get done() {throw 666}}); |
| 1098 | g.prototype.return = () => { assertUnreachable() }; |
| 1099 | |
| 1100 | |
| 1101 | assertThrowsEquals(() => { |
| 1102 | for (var x of g()) {} |
| 1103 | }, 666); |
| 1104 | |
| 1105 | assertThrowsEquals(() => { |
| 1106 | for (let x of g()) {} |
| 1107 | }, 666); |
| 1108 | |
| 1109 | assertThrowsEquals(() => { |
| 1110 | for (const x of g()) {} |
| 1111 | }, 666); |
| 1112 | |
| 1113 | assertThrowsEquals(() => { |
| 1114 | for (x of g()) {} |
| 1115 | }, 666); |
| 1116 | |
| 1117 | assertThrowsEquals(() => { |
| 1118 | var [x] = g(); |
| 1119 | }, 666); |
| 1120 | |
| 1121 | assertThrowsEquals(() => { |
| 1122 | let [x] = g(); |
| 1123 | }, 666); |
| 1124 | |
| 1125 | assertThrowsEquals(() => { |
| 1126 | const [x] = g(); |
| 1127 | }, 666); |
| 1128 | |
| 1129 | assertThrowsEquals(() => { |
| 1130 | [x] = g(); |
| 1131 | }, 666); |
| 1132 | |
| 1133 | assertThrowsEquals(() => { |
| 1134 | (([x]) => x)(g()); |
| 1135 | }, 666); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1136 | |
| 1137 | assertThrowsEquals(() => { |
| 1138 | var [...x] = g(); |
| 1139 | }, 666); |
| 1140 | |
| 1141 | assertThrowsEquals(() => { |
| 1142 | let [...x] = g(); |
| 1143 | }, 666); |
| 1144 | |
| 1145 | assertThrowsEquals(() => { |
| 1146 | const [...x] = g(); |
| 1147 | }, 666); |
| 1148 | |
| 1149 | assertThrowsEquals(() => { |
| 1150 | [...x] = g(); |
| 1151 | }, 666); |
| 1152 | |
| 1153 | assertThrowsEquals(() => { |
| 1154 | (([...x]) => x)(g()); |
| 1155 | }, 666); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1156 | } |
| 1157 | |
| 1158 | |
| 1159 | // Nested loops. |
| 1160 | { |
| 1161 | function* g1() { yield 1; yield 2; throw 3; } |
| 1162 | function* g2() { yield -1; yield -2; throw -3; } |
| 1163 | |
| 1164 | assertDoesNotThrow(() => { |
| 1165 | for (let x of g1()) { |
| 1166 | for (let y of g2()) { |
| 1167 | if (y == -2) break; |
| 1168 | } |
| 1169 | if (x == 2) break; |
| 1170 | } |
| 1171 | }, -3); |
| 1172 | |
| 1173 | assertThrowsEquals(() => { |
| 1174 | for (let x of g1()) { |
| 1175 | for (let y of g2()) { |
| 1176 | } |
| 1177 | } |
| 1178 | }, -3); |
| 1179 | |
| 1180 | assertThrowsEquals(() => { |
| 1181 | for (let x of g1()) { |
| 1182 | for (let y of g2()) { |
| 1183 | if (y == -2) break; |
| 1184 | } |
| 1185 | } |
| 1186 | }, 3); |
| 1187 | |
| 1188 | assertDoesNotThrow(() => { |
| 1189 | l: for (let x of g1()) { |
| 1190 | for (let y of g2()) { |
| 1191 | if (y == -2) break l; |
| 1192 | } |
| 1193 | } |
| 1194 | }); |
| 1195 | |
| 1196 | assertThrowsEquals(() => { |
| 1197 | for (let x of g1()) { |
| 1198 | for (let y of g2()) { |
| 1199 | throw 4; |
| 1200 | } |
| 1201 | } |
| 1202 | }, 4); |
| 1203 | |
| 1204 | assertThrowsEquals(() => { |
| 1205 | for (let x of g1()) { |
| 1206 | for (let y of g2()) { |
| 1207 | if (y == -2) throw 4; |
| 1208 | } |
| 1209 | } |
| 1210 | }, 4); |
| 1211 | |
| 1212 | let log = []; |
| 1213 | g1.prototype.return = () => { log.push(1); throw 5 }; |
| 1214 | g2.prototype.return = () => { log.push(2); throw -5 }; |
| 1215 | |
| 1216 | log = []; |
| 1217 | assertThrowsEquals(() => { |
| 1218 | for (let x of g1()) { |
| 1219 | for (let y of g2()) { |
| 1220 | if (y == -2) break; |
| 1221 | } |
| 1222 | if (x == 2) break; |
| 1223 | } |
| 1224 | }, -5); |
| 1225 | assertEquals([2, 1], log); |
| 1226 | |
| 1227 | log = []; |
| 1228 | assertThrowsEquals(() => { |
| 1229 | for (let x of g1()) { |
| 1230 | for (let y of g2()) { |
| 1231 | } |
| 1232 | } |
| 1233 | }, -3); |
| 1234 | assertEquals([1], log); |
| 1235 | |
| 1236 | log = []; |
| 1237 | assertThrowsEquals(() => { |
| 1238 | for (let x of g1()) { |
| 1239 | for (let y of g2()) { |
| 1240 | if (y == -2) break; |
| 1241 | } |
| 1242 | } |
| 1243 | }, -5); |
| 1244 | assertEquals([2, 1], log); |
| 1245 | |
| 1246 | log = []; |
| 1247 | assertThrowsEquals(() => { |
| 1248 | l: for (let x of g1()) { |
| 1249 | for (let y of g2()) { |
| 1250 | if (y == -2) break l; |
| 1251 | } |
| 1252 | } |
| 1253 | }, -5); |
| 1254 | assertEquals([2, 1], log); |
| 1255 | |
| 1256 | log = []; |
| 1257 | assertThrowsEquals(() => { |
| 1258 | for (let x of g1()) { |
| 1259 | for (let y of g2()) { |
| 1260 | throw 4; |
| 1261 | } |
| 1262 | } |
| 1263 | }, 4); |
| 1264 | assertEquals([2, 1], log); |
| 1265 | |
| 1266 | log = []; |
| 1267 | assertThrowsEquals(() => { |
| 1268 | for (let x of g1()) { |
| 1269 | for (let y of g2()) { |
| 1270 | if (y == -2) throw 4; |
| 1271 | } |
| 1272 | } |
| 1273 | }, 4); |
| 1274 | assertEquals([2, 1], log); |
| 1275 | |
| 1276 | log = []; |
| 1277 | assertThrowsEquals(() => { |
| 1278 | for (let x of g1()) { |
| 1279 | try { |
| 1280 | for (let y of g2()) { |
| 1281 | } |
| 1282 | } catch (_) {} |
| 1283 | } |
| 1284 | }, 3); |
| 1285 | assertEquals([], log); |
| 1286 | |
| 1287 | log = []; |
| 1288 | assertThrowsEquals(() => { |
| 1289 | for (let x of g1()) { |
| 1290 | try { |
| 1291 | for (let y of g2()) { |
| 1292 | } |
| 1293 | } catch (_) {} |
| 1294 | if (x == 2) break; |
| 1295 | } |
| 1296 | }, 5); |
| 1297 | assertEquals([1], log); |
| 1298 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1299 | |
| 1300 | |
| 1301 | // yield*, argument's return method is "undefined". |
| 1302 | function TestYieldStarWithoutReturn(get_iterable) { |
| 1303 | assertTrue(get_iterable().return == undefined); |
| 1304 | |
| 1305 | function* g() { yield* get_iterable() } |
| 1306 | |
| 1307 | { |
| 1308 | let gen = g(); |
| 1309 | assertEquals({value: 1, done: false}, gen.next()); |
| 1310 | assertEquals({value: undefined, done: true}, gen.return()); |
| 1311 | } |
| 1312 | |
| 1313 | assertEquals(42, (() => { |
| 1314 | for (let x of g()) break; |
| 1315 | return 42; |
| 1316 | })()); |
| 1317 | |
| 1318 | assertEquals(42, (() => { |
| 1319 | for (let x of g()) return 42; |
| 1320 | })()); |
| 1321 | |
| 1322 | assertThrowsEquals(() => { |
| 1323 | for (let x of g()) throw 42; |
| 1324 | }, 42); |
| 1325 | } |
| 1326 | { |
| 1327 | let get_iterable1 = () => [1, 2]; |
| 1328 | let get_iterable2 = function*() { yield 1; yield 2 }; |
| 1329 | get_iterable2.prototype.return = null; |
| 1330 | TestYieldStarWithoutReturn(get_iterable1); |
| 1331 | TestYieldStarWithoutReturn(get_iterable2); |
| 1332 | } |
| 1333 | |
| 1334 | |
| 1335 | // yield*, argument's return method is defined. |
| 1336 | { |
| 1337 | let get_iterable = function*() { yield 1; yield 2 }; |
| 1338 | const obj = {}; |
| 1339 | get_iterable.prototype.return = (...args) => obj; |
| 1340 | |
| 1341 | function* g() { yield* get_iterable() } |
| 1342 | |
| 1343 | { |
| 1344 | let gen = g(); |
| 1345 | assertEquals({value: 1, done: false}, gen.next()); |
| 1346 | assertSame(obj, gen.return()); |
| 1347 | assertSame(obj, gen.return()); |
| 1348 | assertSame(obj, gen.return()); |
| 1349 | assertEquals({value: 2, done: false}, gen.next()); |
| 1350 | assertSame(obj, gen.return()); |
| 1351 | assertSame(obj, gen.return()); |
| 1352 | assertSame(obj, gen.return()); |
| 1353 | assertEquals({value: undefined, done: true}, gen.next()); |
| 1354 | assertEquals({value: undefined, done: true}, gen.return()); |
| 1355 | assertEquals({value: undefined, done: true}, gen.return()); |
| 1356 | } |
| 1357 | |
| 1358 | assertEquals(42, (() => { |
| 1359 | for (let x of g()) break; |
| 1360 | return 42; |
| 1361 | })()); |
| 1362 | |
| 1363 | assertEquals(42, (() => { |
| 1364 | for (let x of g()) return 42; |
| 1365 | })()); |
| 1366 | |
| 1367 | assertThrowsEquals(() => { |
| 1368 | for (let x of g()) throw 42; |
| 1369 | }, 42); |
| 1370 | } |