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| 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 | |
| 5 // Flags: --harmony-iterator-close | |
| 6 | |
| 7 | |
| 8 function* g() { yield 42; return 88 }; | |
| 9 | |
| 10 | |
| 11 // Return method is "undefined". | |
| 12 { | |
| 13 g.prototype.return = null; | |
| 14 | |
| 15 | |
| 16 assertEquals(undefined, (() => { | |
| 17 for (var x of g()) { break; } | |
| 18 })()); | |
| 19 | |
| 20 assertEquals(undefined, (() => { | |
| 21 for (let x of g()) { break; } | |
| 22 })()); | |
| 23 | |
| 24 assertEquals(undefined, (() => { | |
| 25 for (const x of g()) { break; } | |
| 26 })()); | |
| 27 | |
| 28 assertEquals(undefined, (() => { | |
| 29 for (x of g()) { break; } | |
| 30 })()); | |
| 31 | |
| 32 | |
| 33 assertThrowsEquals(() => { | |
| 34 for (var x of g()) { throw 42; } | |
| 35 }, 42); | |
| 36 | |
| 37 assertThrowsEquals(() => { | |
| 38 for (let x of g()) { throw 42; } | |
| 39 }, 42); | |
| 40 | |
| 41 assertThrowsEquals(() => { | |
| 42 for (const x of g()) { throw 42; } | |
| 43 }, 42); | |
| 44 | |
| 45 assertThrowsEquals(() => { | |
| 46 for (x of g()) { throw 42; } | |
| 47 }, 42); | |
| 48 | |
| 49 | |
| 50 assertEquals(42, (() => { | |
| 51 for (var x of g()) { return 42; } | |
| 52 })()); | |
| 53 | |
| 54 assertEquals(42, (() => { | |
| 55 for (let x of g()) { return 42; } | |
| 56 })()); | |
| 57 | |
| 58 assertEquals(42, (() => { | |
| 59 for (const x of g()) { return 42; } | |
| 60 })()); | |
| 61 | |
| 62 assertEquals(42, (() => { | |
| 63 for (x of g()) { return 42; } | |
| 64 })()); | |
| 65 | |
| 66 | |
| 67 assertEquals(42, eval('for (var x of g()) { x; }')); | |
| 68 | |
| 69 assertEquals(42, eval('for (let x of g()) { x; }')); | |
| 70 | |
| 71 assertEquals(42, eval('for (const x of g()) { x; }')); | |
| 72 | |
| 73 assertEquals(42, eval('for (x of g()) { x; }')); | |
| 74 | |
| 75 | |
| 76 assertEquals(42, (() => { | |
| 77 var [x] = g(); return x; | |
| 78 })()); | |
| 79 | |
| 80 assertEquals(42, (() => { | |
| 81 let [x] = g(); return x; | |
| 82 })()); | |
| 83 | |
| 84 assertEquals(42, (() => { | |
| 85 const [x] = g(); return x; | |
| 86 })()); | |
| 87 | |
| 88 assertEquals(42, (() => { | |
| 89 [x] = g(); return x; | |
| 90 })()); | |
| 91 | |
| 92 assertEquals(42, | |
| 93 (([x]) => x)(g()) | |
| 94 ); | |
| 95 } | |
| 96 | |
| 97 | |
| 98 // Return method is not callable. | |
| 99 { | |
| 100 g.prototype.return = 666; | |
| 101 | |
| 102 | |
| 103 assertThrows(() => { | |
| 104 for (var x of g()) { break; } | |
| 105 }, TypeError); | |
| 106 | |
| 107 assertThrows(() => { | |
| 108 for (let x of g()) { break; } | |
| 109 }, TypeError); | |
| 110 | |
| 111 assertThrows(() => { | |
| 112 for (const x of g()) { break; } | |
| 113 }, TypeError); | |
| 114 | |
| 115 assertThrows(() => { | |
| 116 for (x of g()) { break; } | |
| 117 }, TypeError); | |
| 118 | |
| 119 | |
| 120 assertThrows(() => { | |
| 121 for (var x of g()) { throw 666; } | |
| 122 }, TypeError); | |
| 123 | |
| 124 assertThrows(() => { | |
| 125 for (let x of g()) { throw 666; } | |
| 126 }, TypeError); | |
| 127 | |
| 128 assertThrows(() => { | |
| 129 for (const x of g()) { throw 666; } | |
| 130 }, TypeError); | |
| 131 | |
| 132 assertThrows(() => { | |
| 133 for (x of g()) { throw 666; } | |
| 134 }, TypeError); | |
| 135 | |
| 136 | |
| 137 assertThrows(() => { | |
| 138 for (var x of g()) { return 666; } | |
| 139 }, TypeError); | |
| 140 | |
| 141 assertThrows(() => { | |
| 142 for (let x of g()) { return 666; } | |
| 143 }, TypeError); | |
| 144 | |
| 145 assertThrows(() => { | |
| 146 for (const x of g()) { return 666; } | |
| 147 }, TypeError); | |
| 148 | |
| 149 assertThrows(() => { | |
| 150 for (x of g()) { return 666; } | |
| 151 }, TypeError); | |
| 152 | |
| 153 | |
| 154 assertEquals(42, eval('for (var x of g()) { x; }')); | |
| 155 | |
| 156 assertEquals(42, eval('for (let x of g()) { x; }')); | |
| 157 | |
| 158 assertEquals(42, eval('for (const x of g()) { x; }')); | |
| 159 | |
| 160 assertEquals(42, eval('for (x of g()) { x; }')); | |
| 161 | |
| 162 | |
| 163 assertThrows(() => { | |
| 164 var [x] = g(); return x; | |
| 165 }, TypeError); | |
| 166 | |
| 167 assertThrows(() => { | |
| 168 let [x] = g(); return x; | |
| 169 }, TypeError); | |
| 170 | |
| 171 assertThrows(() => { | |
| 172 const [x] = g(); return x; | |
| 173 }, TypeError); | |
| 174 | |
| 175 assertThrows(() => { | |
| 176 [x] = g(); return x; | |
| 177 }, TypeError); | |
| 178 | |
| 179 assertThrows(() => { | |
| 180 (([x]) => x)(g()); | |
| 181 }, TypeError); | |
| 182 } | |
| 183 | |
| 184 | |
| 185 // Return method does not return an object. | |
| 186 { | |
| 187 g.prototype.return = () => 666; | |
| 188 | |
| 189 | |
| 190 assertThrows(() => { | |
| 191 for (var x of g()) { break; } | |
| 192 }, TypeError); | |
| 193 | |
| 194 assertThrows(() => { | |
| 195 for (let x of g()) { break; } | |
| 196 }, TypeError); | |
| 197 | |
| 198 assertThrows(() => { | |
| 199 for (const x of g()) { break; } | |
| 200 }, TypeError); | |
| 201 | |
| 202 assertThrows(() => { | |
| 203 for (x of g()) { break; } | |
| 204 }, TypeError); | |
| 205 | |
| 206 | |
| 207 // Throw from the body of a for loop 'wins' vs throw | |
| 208 // originating from a bad 'return' value. | |
| 209 | |
| 210 assertThrowsEquals(() => { | |
| 211 for (var x of g()) { throw 666; } | |
| 212 }, 666); | |
| 213 | |
| 214 assertThrowsEquals(() => { | |
| 215 for (let x of g()) { throw 666; } | |
| 216 }, 666); | |
| 217 | |
| 218 assertThrowsEquals(() => { | |
| 219 for (const x of g()) { throw 666; } | |
| 220 }, 666); | |
| 221 | |
| 222 assertThrowsEquals(() => { | |
| 223 for (x of g()) { throw 666; } | |
| 224 }, 666); | |
| 225 | |
| 226 | |
| 227 assertThrows(() => { | |
| 228 for (var x of g()) { return 666; } | |
| 229 }, TypeError); | |
| 230 | |
| 231 assertThrows(() => { | |
| 232 for (let x of g()) { return 666; } | |
| 233 }, TypeError); | |
| 234 | |
| 235 assertThrows(() => { | |
| 236 for (const x of g()) { return 666; } | |
| 237 }, TypeError); | |
| 238 | |
| 239 assertThrows(() => { | |
| 240 for (x of g()) { return 666; } | |
| 241 }, TypeError); | |
| 242 | |
| 243 | |
| 244 assertEquals(42, eval('for (var x of g()) { x; }')); | |
| 245 | |
| 246 assertEquals(42, eval('for (let x of g()) { x; }')); | |
| 247 | |
| 248 assertEquals(42, eval('for (const x of g()) { x; }')); | |
| 249 | |
| 250 assertEquals(42, eval('for (x of g()) { x; }')); | |
| 251 | |
| 252 | |
| 253 assertThrows(() => { | |
| 254 var [x] = g(); return x; | |
| 255 }, TypeError); | |
| 256 | |
| 257 assertThrows(() => { | |
| 258 let [x] = g(); return x; | |
| 259 }, TypeError); | |
| 260 | |
| 261 assertThrows(() => { | |
| 262 const [x] = g(); return x; | |
| 263 }, TypeError); | |
| 264 | |
| 265 assertThrows(() => { | |
| 266 [x] = g(); return x; | |
| 267 }, TypeError); | |
| 268 | |
| 269 assertThrows(() => { | |
| 270 (([x]) => x)(g()); | |
| 271 }, TypeError); | |
| 272 } | |
| 273 | |
| 274 | |
| 275 // Return method returns an object. | |
| 276 { | |
| 277 let log = []; | |
| 278 g.prototype.return = (...args) => { log.push(args); return {} }; | |
| 279 | |
| 280 | |
| 281 log = []; | |
| 282 for (var x of g()) { break; } | |
| 283 assertEquals([[]], log); | |
| 284 | |
| 285 log = []; | |
| 286 for (let x of g()) { break; } | |
| 287 assertEquals([[]], log); | |
| 288 | |
| 289 log = []; | |
| 290 for (const x of g()) { break; } | |
| 291 assertEquals([[]], log); | |
| 292 | |
| 293 log = []; | |
| 294 for (x of g()) { break; } | |
| 295 assertEquals([[]], log); | |
| 296 | |
| 297 | |
| 298 log = []; | |
| 299 assertThrowsEquals(() => { | |
| 300 for (var x of g()) { throw 42; } | |
| 301 }, 42); | |
| 302 assertEquals([[]], log); | |
| 303 | |
| 304 log = []; | |
| 305 assertThrowsEquals(() => { | |
| 306 for (let x of g()) { throw 42; } | |
| 307 }, 42); | |
| 308 assertEquals([[]], log); | |
| 309 | |
| 310 log = []; | |
| 311 assertThrowsEquals(() => { | |
| 312 for (const x of g()) { throw 42; } | |
| 313 }, 42); | |
| 314 assertEquals([[]], log); | |
| 315 | |
| 316 log = []; | |
| 317 assertThrowsEquals(() => { | |
| 318 for (x of g()) { throw 42; } | |
| 319 }, 42); | |
| 320 assertEquals([[]], log); | |
| 321 | |
| 322 | |
| 323 log = []; | |
| 324 assertEquals(42, (() => { | |
| 325 for (var x of g()) { return 42; } | |
| 326 })()); | |
| 327 assertEquals([[]], log); | |
| 328 | |
| 329 log = []; | |
| 330 assertEquals(42, (() => { | |
| 331 for (let x of g()) { return 42; } | |
| 332 })()); | |
| 333 assertEquals([[]], log); | |
| 334 | |
| 335 log = []; | |
| 336 assertEquals(42, (() => { | |
| 337 for (const x of g()) { return 42; } | |
| 338 })()); | |
| 339 assertEquals([[]], log); | |
| 340 | |
| 341 log = []; | |
| 342 assertEquals(42, (() => { | |
| 343 for (x of g()) { return 42; } | |
| 344 })()); | |
| 345 assertEquals([[]], log); | |
| 346 | |
| 347 | |
| 348 log = []; | |
| 349 assertEquals(42, eval('for (var x of g()) { x; }')); | |
| 350 assertEquals([], log); | |
| 351 | |
| 352 log = []; | |
| 353 assertEquals(42, eval('for (let x of g()) { x; }')); | |
| 354 assertEquals([], log); | |
| 355 | |
| 356 log = []; | |
| 357 assertEquals(42, eval('for (const x of g()) { x; }')); | |
| 358 assertEquals([], log); | |
| 359 | |
| 360 log = []; | |
| 361 assertEquals(42, eval('for (x of g()) { x; }')); | |
| 362 assertEquals([], log); | |
| 363 | |
| 364 | |
| 365 // Even if doing the assignment throws, still call return | |
| 366 log = []; | |
| 367 x = { set attr(_) { throw 1234; } }; | |
| 368 assertThrowsEquals(() => { | |
| 369 for (x.attr of g()) { throw 456; } | |
| 370 }, 1234); | |
| 371 assertEquals([[]], log); | |
| 372 | |
| 373 | |
| 374 log = []; | |
| 375 assertEquals(42, (() => { | |
| 376 var [x] = g(); return x; | |
| 377 })()); | |
| 378 assertEquals([[]], log); | |
| 379 | |
| 380 log = []; | |
| 381 assertEquals(42, (() => { | |
| 382 let [x] = g(); return x; | |
| 383 })()); | |
| 384 assertEquals([[]], log); | |
| 385 | |
| 386 log = []; | |
| 387 assertEquals(42, (() => { | |
| 388 const [x] = g(); return x; | |
| 389 })()); | |
| 390 assertEquals([[]], log); | |
| 391 | |
| 392 log = []; | |
| 393 assertEquals(42, (() => { | |
| 394 [x] = g(); return x; | |
| 395 })()); | |
| 396 assertEquals([[]], log); | |
| 397 | |
| 398 log = [] | |
| 399 assertEquals(42, | |
| 400 (([x]) => x)(g()) | |
| 401 ); | |
| 402 assertEquals([[]], log); | |
| 403 | |
| 404 | |
| 405 log = []; | |
| 406 assertEquals(42, (() => { | |
| 407 var [x,] = g(); return x; | |
| 408 })()); | |
| 409 assertEquals([[]], log); | |
| 410 | |
| 411 log = []; | |
| 412 assertEquals(42, (() => { | |
| 413 let [x,] = g(); return x; | |
| 414 })()); | |
| 415 assertEquals([[]], log); | |
| 416 | |
| 417 log = []; | |
| 418 assertEquals(42, (() => { | |
| 419 const [x,] = g(); return x; | |
| 420 })()); | |
| 421 assertEquals([[]], log); | |
| 422 | |
| 423 log = []; | |
| 424 assertEquals(42, (() => { | |
| 425 [x,] = g(); return x; | |
| 426 })()); | |
| 427 assertEquals([[]], log); | |
| 428 | |
| 429 log = [] | |
| 430 assertEquals(42, | |
| 431 (([x,]) => x)(g()) | |
| 432 ); | |
| 433 assertEquals([[]], log); | |
| 434 | |
| 435 | |
| 436 log = []; | |
| 437 assertEquals(42, (() => { | |
| 438 var [x,,] = g(); return x; | |
| 439 })()); | |
| 440 assertEquals([], log); | |
| 441 | |
| 442 log = []; | |
| 443 assertEquals(42, (() => { | |
| 444 let [x,,] = g(); return x; | |
| 445 })()); | |
| 446 assertEquals([], log); | |
| 447 | |
| 448 log = []; | |
| 449 assertEquals(42, (() => { | |
| 450 const [x,,] = g(); return x; | |
| 451 })()); | |
| 452 assertEquals([], log); | |
| 453 | |
| 454 log = []; | |
| 455 assertEquals(42, (() => { | |
| 456 [x,,] = g(); return x; | |
| 457 })()); | |
| 458 assertEquals([], log); | |
| 459 | |
| 460 log = [] | |
| 461 assertEquals(42, | |
| 462 (([x,,]) => x)(g()) | |
| 463 ); | |
| 464 assertEquals([], log); | |
| 465 | |
| 466 | |
| 467 log = []; | |
| 468 assertEquals([42, undefined], (() => { | |
| 469 var [x, y] = g(); return [x, y]; | |
| 470 })()); | |
| 471 assertEquals([], log); | |
| 472 | |
| 473 log = []; | |
| 474 assertEquals([42, undefined], (() => { | |
| 475 let [x, y] = g(); return [x, y]; | |
| 476 })()); | |
| 477 assertEquals([], log); | |
| 478 | |
| 479 log = []; | |
| 480 assertEquals([42, undefined], (() => { | |
| 481 const [x, y] = g(); return [x, y]; | |
| 482 })()); | |
| 483 assertEquals([], log); | |
| 484 | |
| 485 log = []; | |
| 486 assertEquals([42, undefined], (() => { | |
| 487 [x, y] = g(); return [x, y]; | |
| 488 })()); | |
| 489 assertEquals([], log); | |
| 490 | |
| 491 log = [] | |
| 492 assertEquals([42, undefined], | |
| 493 (([x, y]) => [x, y])(g()) | |
| 494 ); | |
| 495 assertEquals([], log); | |
| 496 | |
| 497 | |
| 498 log = []; | |
| 499 assertEquals([42], (() => { | |
| 500 var [...x] = g(); return x; | |
| 501 })()); | |
| 502 assertEquals([], log); | |
| 503 | |
| 504 log = []; | |
| 505 assertEquals([42], (() => { | |
| 506 let [...x] = g(); return x; | |
| 507 })()); | |
| 508 assertEquals([], log); | |
| 509 | |
| 510 log = []; | |
| 511 assertEquals([42], (() => { | |
| 512 const [...x] = g(); return x; | |
| 513 })()); | |
| 514 assertEquals([], log); | |
| 515 | |
| 516 log = []; | |
| 517 assertEquals([42], (() => { | |
| 518 [...x] = g(); return x; | |
| 519 })()); | |
| 520 assertEquals([], log); | |
| 521 | |
| 522 log = [] | |
| 523 assertEquals([42], | |
| 524 (([...x]) => x)(g()) | |
| 525 ); | |
| 526 assertEquals([], log); | |
| 527 | |
| 528 | |
| 529 log = []; | |
| 530 assertEquals([42, []], (() => { | |
| 531 var [x, ...y] = g(); return [x, y]; | |
| 532 })()); | |
| 533 assertEquals([], log); | |
| 534 | |
| 535 log = []; | |
| 536 assertEquals([42, []], (() => { | |
| 537 let [x, ...y] = g(); return [x, y]; | |
| 538 })()); | |
| 539 assertEquals([], log); | |
| 540 | |
| 541 log = []; | |
| 542 assertEquals([42, []], (() => { | |
| 543 const [x, ...y] = g(); return [x, y]; | |
| 544 })()); | |
| 545 assertEquals([], log); | |
| 546 | |
| 547 log = []; | |
| 548 assertEquals([42, []], (() => { | |
| 549 [x, ...y] = g(); return [x, y]; | |
| 550 })()); | |
| 551 assertEquals([], log); | |
| 552 | |
| 553 log = [] | |
| 554 assertEquals([42, []], | |
| 555 (([x, ...y]) => [x, y])(g()) | |
| 556 ); | |
| 557 assertEquals([], log); | |
| 558 | |
| 559 | |
| 560 log = []; | |
| 561 assertEquals([], (() => { | |
| 562 var [] = g(); return []; | |
| 563 })()); | |
| 564 assertEquals([[]], log); | |
| 565 | |
| 566 log = []; | |
| 567 assertEquals([], (() => { | |
| 568 let [] = g(); return []; | |
| 569 })()); | |
| 570 assertEquals([[]], log); | |
| 571 | |
| 572 log = []; | |
| 573 assertEquals([], (() => { | |
| 574 const [] = g(); return []; | |
| 575 })()); | |
| 576 assertEquals([[]], log); | |
| 577 | |
| 578 log = []; | |
| 579 assertEquals([], (() => { | |
| 580 [] = g(); return []; | |
| 581 })()); | |
| 582 assertEquals([[]], log); | |
| 583 | |
| 584 log = [] | |
| 585 assertEquals([], | |
| 586 (([]) => [])(g()) | |
| 587 ); | |
| 588 assertEquals([[]], log); | |
| 589 | |
| 590 | |
| 591 log = []; | |
| 592 assertEquals([], (() => { | |
| 593 var [...[]] = g(); return []; | |
| 594 })()); | |
| 595 assertEquals([], log); | |
| 596 | |
| 597 log = []; | |
| 598 assertEquals([], (() => { | |
| 599 let [...[]] = g(); return []; | |
| 600 })()); | |
| 601 assertEquals([], log); | |
| 602 | |
| 603 log = []; | |
| 604 assertEquals([], (() => { | |
| 605 const [...[]] = g(); return []; | |
| 606 })()); | |
| 607 assertEquals([], log); | |
| 608 | |
| 609 log = []; | |
| 610 assertEquals([], (() => { | |
| 611 [...[]] = g(); return []; | |
| 612 })()); | |
| 613 assertEquals([], log); | |
| 614 | |
| 615 log = [] | |
| 616 assertEquals([], | |
| 617 (([...[]]) => [])(g()) | |
| 618 ); | |
| 619 assertEquals([], log); | |
| 620 | |
| 621 | |
| 622 log = []; | |
| 623 assertEquals([42], (() => { | |
| 624 var [...[x]] = g(); return [x]; | |
| 625 })()); | |
| 626 assertEquals([], log); | |
| 627 | |
| 628 log = []; | |
| 629 assertEquals([42], (() => { | |
| 630 let [...[x]] = g(); return [x]; | |
| 631 })()); | |
| 632 assertEquals([], log); | |
| 633 | |
| 634 log = []; | |
| 635 assertEquals([42], (() => { | |
| 636 const [...[x]] = g(); return [x]; | |
| 637 })()); | |
| 638 assertEquals([], log); | |
| 639 | |
| 640 log = []; | |
| 641 assertEquals([42], (() => { | |
| 642 [...[x]] = g(); return [x]; | |
| 643 })()); | |
| 644 assertEquals([], log); | |
| 645 | |
| 646 log = [] | |
| 647 assertEquals([42], | |
| 648 (([...[x]]) => [x])(g()) | |
| 649 ); | |
| 650 assertEquals([], log); | |
| 651 | |
| 652 | |
| 653 log = []; | |
| 654 assertEquals([42, undefined], (() => { | |
| 655 var [...[x, y]] = g(); return [x, y]; | |
| 656 })()); | |
| 657 assertEquals([], log); | |
| 658 | |
| 659 log = []; | |
| 660 assertEquals([42, undefined], (() => { | |
| 661 let [...[x, y]] = g(); return [x, y]; | |
| 662 })()); | |
| 663 assertEquals([], log); | |
| 664 | |
| 665 log = []; | |
| 666 assertEquals([42, undefined], (() => { | |
| 667 const [...[x, y]] = g(); return [x, y]; | |
| 668 })()); | |
| 669 assertEquals([], log); | |
| 670 | |
| 671 log = []; | |
| 672 assertEquals([42, undefined], (() => { | |
| 673 [...[x, y]] = g(); return [x, y]; | |
| 674 })()); | |
| 675 assertEquals([], log); | |
| 676 | |
| 677 log = [] | |
| 678 assertEquals([42, undefined], | |
| 679 (([...[x, y]]) => [x, y])(g()) | |
| 680 ); | |
| 681 assertEquals([], log); | |
| 682 | |
| 683 | |
| 684 log = [] | |
| 685 assertThrowsEquals(() => { | |
| 686 let x = { set foo(_) { throw 666; } }; | |
| 687 [x.foo] = g(); | |
| 688 }, 666); | |
| 689 assertEquals([[]], log); | |
| 690 | |
| 691 | |
| 692 log = [] | |
| 693 assertThrows(() => { | |
| 694 var [[]] = g(); | |
| 695 }, TypeError); | |
| 696 assertEquals([[]], log); | |
| 697 | |
| 698 log = [] | |
| 699 assertThrows(() => { | |
| 700 let [[]] = g(); | |
| 701 }, TypeError); | |
| 702 assertEquals([[]], log); | |
| 703 | |
| 704 log = [] | |
| 705 assertThrows(() => { | |
| 706 const [[]] = g(); | |
| 707 }, TypeError); | |
| 708 assertEquals([[]], log); | |
| 709 | |
| 710 log = [] | |
| 711 assertThrows(() => { | |
| 712 [[]] = g(); | |
| 713 }, TypeError); | |
| 714 assertEquals([[]], log); | |
| 715 | |
| 716 log = [] | |
| 717 assertThrows(() => { | |
| 718 (([[]]) => 0)(g()); | |
| 719 }, TypeError); | |
| 720 assertEquals([[]], log); | |
| 721 | |
| 722 | |
| 723 log = [] | |
| 724 assertThrows(() => { | |
| 725 var [...[[]]] = g(); | |
| 726 }, TypeError); | |
| 727 assertEquals([], log); | |
| 728 | |
| 729 log = [] | |
| 730 assertThrows(() => { | |
| 731 let [...[[]]] = g(); | |
| 732 }, TypeError); | |
| 733 assertEquals([], log); | |
| 734 | |
| 735 log = [] | |
| 736 assertThrows(() => { | |
| 737 const [...[[]]] = g(); | |
| 738 }, TypeError); | |
| 739 assertEquals([], log); | |
| 740 | |
| 741 log = [] | |
| 742 assertThrows(() => { | |
| 743 [...[[]]] = g(); | |
| 744 }, TypeError); | |
| 745 assertEquals([], log); | |
| 746 | |
| 747 log = [] | |
| 748 assertThrows(() => { | |
| 749 (([...[[]]]) => 0)(g()); | |
| 750 }, TypeError); | |
| 751 assertEquals([], log); | |
| 752 | |
| 753 | |
| 754 { | |
| 755 let backup = Array.prototype[Symbol.iterator]; | |
| 756 Array.prototype[Symbol.iterator] = () => g(); | |
| 757 | |
| 758 | |
| 759 log = []; | |
| 760 assertDoesNotThrow(() => { | |
| 761 var [x, ...[y]] = [1, 2, 3] | |
| 762 }); | |
| 763 assertEquals(log, [[]]); | |
| 764 | |
| 765 log = []; | |
| 766 assertDoesNotThrow(() => { | |
| 767 let [x, ...[y]] = [1, 2, 3]; | |
| 768 }); | |
| 769 assertEquals(log, [[]]); | |
| 770 | |
| 771 log = []; | |
| 772 assertDoesNotThrow(() => { | |
| 773 const [x, ...[y]] = [1, 2, 3]; | |
| 774 }); | |
| 775 assertEquals(log, [[]]); | |
| 776 | |
| 777 log = []; | |
| 778 assertDoesNotThrow(() => { | |
| 779 (([x, ...[y]]) => {})([1, 2, 3]); | |
| 780 }); | |
| 781 assertEquals(log, [[]]); | |
| 782 | |
| 783 | |
| 784 log = []; | |
| 785 assertThrows(() => { | |
| 786 var [x, ...[[]]] = [1, 2, 3]; | |
| 787 }, TypeError); | |
| 788 assertEquals(log, [[]]); | |
| 789 | |
| 790 log = []; | |
| 791 assertThrows(() => { | |
| 792 let [x, ...[[]]] = [1, 2, 3]; | |
| 793 }, TypeError); | |
| 794 assertEquals(log, [[]]); | |
| 795 | |
| 796 log = []; | |
| 797 assertThrows(() => { | |
| 798 const [x, ...[[]]] = [1, 2, 3]; | |
| 799 }, TypeError); | |
| 800 assertEquals(log, [[]]); | |
| 801 | |
| 802 log = []; | |
| 803 assertThrows(() => { | |
| 804 (([x, ...[[]]]) => {})([1, 2, 3]); | |
| 805 }, TypeError); | |
| 806 assertEquals(log, [[]]); | |
| 807 | |
| 808 | |
| 809 log = []; | |
| 810 assertDoesNotThrow(() => { | |
| 811 var [x, ...[...y]] = [1, 2, 3]; | |
| 812 }); | |
| 813 assertEquals(log, []); | |
| 814 | |
| 815 log = []; | |
| 816 assertDoesNotThrow(() => { | |
| 817 let [x, ...[...y]] = [1, 2, 3]; | |
| 818 }); | |
| 819 assertEquals(log, []); | |
| 820 | |
| 821 log = []; | |
| 822 assertDoesNotThrow(() => { | |
| 823 const [x, ...[...y]] = [1, 2, 3]; | |
| 824 }); | |
| 825 assertEquals(log, []); | |
| 826 | |
| 827 log = []; | |
| 828 assertDoesNotThrow(() => { | |
| 829 (([x, ...[...y]]) => {})([1, 2, 3]); | |
| 830 }); | |
| 831 assertEquals(log, []); | |
| 832 | |
| 833 | |
| 834 Array.prototype[Symbol.iterator] = backup; | |
| 835 } | |
| 836 } | |
| 837 | |
| 838 | |
| 839 // Return method throws. | |
| 840 { | |
| 841 let log = []; | |
| 842 g.prototype.return = (...args) => { log.push(args); throw 23 }; | |
| 843 | |
| 844 | |
| 845 log = []; | |
| 846 assertThrowsEquals(() => { | |
| 847 for (var x of g()) { break; } | |
| 848 }, 23); | |
| 849 assertEquals([[]], log); | |
| 850 | |
| 851 log = []; | |
| 852 assertThrowsEquals(() => { | |
| 853 for (let x of g()) { break; } | |
| 854 }, 23); | |
| 855 assertEquals([[]], log); | |
| 856 | |
| 857 log = []; | |
| 858 assertThrowsEquals(() => { | |
| 859 for (const x of g()) { break; } | |
| 860 }, 23); | |
| 861 assertEquals([[]], log); | |
| 862 | |
| 863 log = []; | |
| 864 assertThrowsEquals(() => { | |
| 865 for (x of g()) { break; } | |
| 866 }, 23); | |
| 867 assertEquals([[]], log); | |
| 868 | |
| 869 | |
| 870 log = []; | |
| 871 assertThrowsEquals(() => { | |
| 872 for (var x of g()) { throw 42; } | |
| 873 }, 42); | |
| 874 assertEquals([[]], log); | |
| 875 | |
| 876 log = []; | |
| 877 assertThrowsEquals(() => { | |
| 878 for (let x of g()) { throw 42; } | |
| 879 }, 42); | |
| 880 assertEquals([[]], log); | |
| 881 | |
| 882 log = []; | |
| 883 assertThrowsEquals(() => { | |
| 884 for (const x of g()) { throw 42; } | |
| 885 }, 42); | |
| 886 assertEquals([[]], log); | |
| 887 | |
| 888 log = []; | |
| 889 assertThrowsEquals(() => { | |
| 890 for (x of g()) { throw 42; } | |
| 891 }, 42); | |
| 892 assertEquals([[]], log); | |
| 893 | |
| 894 | |
| 895 log = []; | |
| 896 assertThrowsEquals(() => { | |
| 897 for (var x of g()) { return 42; } | |
| 898 }, 23); | |
| 899 assertEquals([[]], log); | |
| 900 | |
| 901 log = []; | |
| 902 assertThrowsEquals(() => { | |
| 903 for (let x of g()) { return 42; } | |
| 904 }, 23); | |
| 905 assertEquals([[]], log); | |
| 906 | |
| 907 log = []; | |
| 908 assertThrowsEquals(() => { | |
| 909 for (const x of g()) { return 42; } | |
| 910 }, 23); | |
| 911 assertEquals([[]], log); | |
| 912 | |
| 913 log = []; | |
| 914 assertThrowsEquals(() => { | |
| 915 for (x of g()) { return 42; } | |
| 916 }, 23); | |
| 917 assertEquals([[]], log); | |
| 918 | |
| 919 | |
| 920 log = []; | |
| 921 assertEquals(42, eval('for (var x of g()) { x; }')); | |
| 922 assertEquals([], log); | |
| 923 | |
| 924 log = []; | |
| 925 assertEquals(42, eval('for (let x of g()) { x; }')); | |
| 926 assertEquals([], log); | |
| 927 | |
| 928 log = []; | |
| 929 assertEquals(42, eval('for (const x of g()) { x; }')); | |
| 930 assertEquals([], log); | |
| 931 | |
| 932 log = []; | |
| 933 assertEquals(42, eval('for (x of g()) { x; }')); | |
| 934 assertEquals([], log); | |
| 935 | |
| 936 | |
| 937 log = []; | |
| 938 assertThrowsEquals(() => { | |
| 939 var [x] = g(); return x; | |
| 940 }, 23); | |
| 941 assertEquals([[]], log); | |
| 942 | |
| 943 log = []; | |
| 944 assertThrowsEquals(() => { | |
| 945 let [x] = g(); return x; | |
| 946 }, 23); | |
| 947 assertEquals([[]], log); | |
| 948 | |
| 949 log = []; | |
| 950 assertThrowsEquals(() => { | |
| 951 const [x] = g(); return x; | |
| 952 }, 23); | |
| 953 assertEquals([[]], log); | |
| 954 | |
| 955 log = []; | |
| 956 assertThrowsEquals(() => { | |
| 957 [x] = g(); return x; | |
| 958 }, 23); | |
| 959 assertEquals([[]], log); | |
| 960 | |
| 961 log = []; | |
| 962 assertThrowsEquals(() => { | |
| 963 (([x]) => x)(g()) | |
| 964 }, 23); | |
| 965 assertEquals([[]], log); | |
| 966 } | |
| 967 | |
| 968 | |
| 969 // Next method throws. | |
| 970 { | |
| 971 g.prototype.next = () => { throw 666; }; | |
| 972 g.prototype.return = () => { assertUnreachable() }; | |
| 973 | |
| 974 | |
| 975 assertThrowsEquals(() => { | |
| 976 for (var x of g()) {} | |
| 977 }, 666); | |
| 978 | |
| 979 assertThrowsEquals(() => { | |
| 980 for (let x of g()) {} | |
| 981 }, 666); | |
| 982 | |
| 983 assertThrowsEquals(() => { | |
| 984 for (const x of g()) {} | |
| 985 }, 666); | |
| 986 | |
| 987 assertThrowsEquals(() => { | |
| 988 for (x of g()) {} | |
| 989 }, 666); | |
| 990 | |
| 991 assertThrowsEquals(() => { | |
| 992 var [x] = g(); | |
| 993 }, 666); | |
| 994 | |
| 995 assertThrowsEquals(() => { | |
| 996 let [x] = g(); | |
| 997 }, 666); | |
| 998 | |
| 999 assertThrowsEquals(() => { | |
| 1000 const [x] = g(); | |
| 1001 }, 666); | |
| 1002 | |
| 1003 assertThrowsEquals(() => { | |
| 1004 [x] = g(); | |
| 1005 }, 666); | |
| 1006 | |
| 1007 assertThrowsEquals(() => { | |
| 1008 (([x]) => x)(g()); | |
| 1009 }, 666); | |
| 1010 | |
| 1011 assertThrowsEquals(() => { | |
| 1012 var [...x] = g(); | |
| 1013 }, 666); | |
| 1014 | |
| 1015 assertThrowsEquals(() => { | |
| 1016 let [...x] = g(); | |
| 1017 }, 666); | |
| 1018 | |
| 1019 assertThrowsEquals(() => { | |
| 1020 const [...x] = g(); | |
| 1021 }, 666); | |
| 1022 | |
| 1023 assertThrowsEquals(() => { | |
| 1024 [...x] = g(); | |
| 1025 }, 666); | |
| 1026 | |
| 1027 assertThrowsEquals(() => { | |
| 1028 (([...x]) => x)(g()); | |
| 1029 }, 666); | |
| 1030 } | |
| 1031 | |
| 1032 | |
| 1033 // Value throws. | |
| 1034 { | |
| 1035 g.prototype.next = () => ({get value() {throw 666}}); | |
| 1036 g.prototype.return = () => { assertUnreachable() }; | |
| 1037 | |
| 1038 | |
| 1039 assertThrowsEquals(() => { | |
| 1040 for (var x of g()) {} | |
| 1041 }, 666); | |
| 1042 | |
| 1043 assertThrowsEquals(() => { | |
| 1044 for (let x of g()) {} | |
| 1045 }, 666); | |
| 1046 | |
| 1047 assertThrowsEquals(() => { | |
| 1048 for (const x of g()) {} | |
| 1049 }, 666); | |
| 1050 | |
| 1051 assertThrowsEquals(() => { | |
| 1052 for (x of g()) {} | |
| 1053 }, 666); | |
| 1054 | |
| 1055 assertThrowsEquals(() => { | |
| 1056 var [x] = g(); | |
| 1057 }, 666); | |
| 1058 | |
| 1059 assertThrowsEquals(() => { | |
| 1060 let [x] = g(); | |
| 1061 }, 666); | |
| 1062 | |
| 1063 assertThrowsEquals(() => { | |
| 1064 const [x] = g(); | |
| 1065 }, 666); | |
| 1066 | |
| 1067 assertThrowsEquals(() => { | |
| 1068 [x] = g(); | |
| 1069 }, 666); | |
| 1070 | |
| 1071 assertThrowsEquals(() => { | |
| 1072 (([x]) => x)(g()); | |
| 1073 }, 666); | |
| 1074 | |
| 1075 assertThrowsEquals(() => { | |
| 1076 var [...x] = g(); | |
| 1077 }, 666); | |
| 1078 | |
| 1079 assertThrowsEquals(() => { | |
| 1080 let [...x] = g(); | |
| 1081 }, 666); | |
| 1082 | |
| 1083 assertThrowsEquals(() => { | |
| 1084 const [...x] = g(); | |
| 1085 }, 666); | |
| 1086 | |
| 1087 assertThrowsEquals(() => { | |
| 1088 [...x] = g(); | |
| 1089 }, 666); | |
| 1090 | |
| 1091 assertThrowsEquals(() => { | |
| 1092 (([...x]) => x)(g()); | |
| 1093 }, 666); | |
| 1094 } | |
| 1095 | |
| 1096 | |
| 1097 // Done throws. | |
| 1098 { | |
| 1099 g.prototype.next = () => ({get done() {throw 666}}); | |
| 1100 g.prototype.return = () => { assertUnreachable() }; | |
| 1101 | |
| 1102 | |
| 1103 assertThrowsEquals(() => { | |
| 1104 for (var x of g()) {} | |
| 1105 }, 666); | |
| 1106 | |
| 1107 assertThrowsEquals(() => { | |
| 1108 for (let x of g()) {} | |
| 1109 }, 666); | |
| 1110 | |
| 1111 assertThrowsEquals(() => { | |
| 1112 for (const x of g()) {} | |
| 1113 }, 666); | |
| 1114 | |
| 1115 assertThrowsEquals(() => { | |
| 1116 for (x of g()) {} | |
| 1117 }, 666); | |
| 1118 | |
| 1119 assertThrowsEquals(() => { | |
| 1120 var [x] = g(); | |
| 1121 }, 666); | |
| 1122 | |
| 1123 assertThrowsEquals(() => { | |
| 1124 let [x] = g(); | |
| 1125 }, 666); | |
| 1126 | |
| 1127 assertThrowsEquals(() => { | |
| 1128 const [x] = g(); | |
| 1129 }, 666); | |
| 1130 | |
| 1131 assertThrowsEquals(() => { | |
| 1132 [x] = g(); | |
| 1133 }, 666); | |
| 1134 | |
| 1135 assertThrowsEquals(() => { | |
| 1136 (([x]) => x)(g()); | |
| 1137 }, 666); | |
| 1138 | |
| 1139 assertThrowsEquals(() => { | |
| 1140 var [...x] = g(); | |
| 1141 }, 666); | |
| 1142 | |
| 1143 assertThrowsEquals(() => { | |
| 1144 let [...x] = g(); | |
| 1145 }, 666); | |
| 1146 | |
| 1147 assertThrowsEquals(() => { | |
| 1148 const [...x] = g(); | |
| 1149 }, 666); | |
| 1150 | |
| 1151 assertThrowsEquals(() => { | |
| 1152 [...x] = g(); | |
| 1153 }, 666); | |
| 1154 | |
| 1155 assertThrowsEquals(() => { | |
| 1156 (([...x]) => x)(g()); | |
| 1157 }, 666); | |
| 1158 } | |
| 1159 | |
| 1160 | |
| 1161 // Nested loops. | |
| 1162 { | |
| 1163 function* g1() { yield 1; yield 2; throw 3; } | |
| 1164 function* g2() { yield -1; yield -2; throw -3; } | |
| 1165 | |
| 1166 assertDoesNotThrow(() => { | |
| 1167 for (let x of g1()) { | |
| 1168 for (let y of g2()) { | |
| 1169 if (y == -2) break; | |
| 1170 } | |
| 1171 if (x == 2) break; | |
| 1172 } | |
| 1173 }, -3); | |
| 1174 | |
| 1175 assertThrowsEquals(() => { | |
| 1176 for (let x of g1()) { | |
| 1177 for (let y of g2()) { | |
| 1178 } | |
| 1179 } | |
| 1180 }, -3); | |
| 1181 | |
| 1182 assertThrowsEquals(() => { | |
| 1183 for (let x of g1()) { | |
| 1184 for (let y of g2()) { | |
| 1185 if (y == -2) break; | |
| 1186 } | |
| 1187 } | |
| 1188 }, 3); | |
| 1189 | |
| 1190 assertDoesNotThrow(() => { | |
| 1191 l: for (let x of g1()) { | |
| 1192 for (let y of g2()) { | |
| 1193 if (y == -2) break l; | |
| 1194 } | |
| 1195 } | |
| 1196 }); | |
| 1197 | |
| 1198 assertThrowsEquals(() => { | |
| 1199 for (let x of g1()) { | |
| 1200 for (let y of g2()) { | |
| 1201 throw 4; | |
| 1202 } | |
| 1203 } | |
| 1204 }, 4); | |
| 1205 | |
| 1206 assertThrowsEquals(() => { | |
| 1207 for (let x of g1()) { | |
| 1208 for (let y of g2()) { | |
| 1209 if (y == -2) throw 4; | |
| 1210 } | |
| 1211 } | |
| 1212 }, 4); | |
| 1213 | |
| 1214 let log = []; | |
| 1215 g1.prototype.return = () => { log.push(1); throw 5 }; | |
| 1216 g2.prototype.return = () => { log.push(2); throw -5 }; | |
| 1217 | |
| 1218 log = []; | |
| 1219 assertThrowsEquals(() => { | |
| 1220 for (let x of g1()) { | |
| 1221 for (let y of g2()) { | |
| 1222 if (y == -2) break; | |
| 1223 } | |
| 1224 if (x == 2) break; | |
| 1225 } | |
| 1226 }, -5); | |
| 1227 assertEquals([2, 1], log); | |
| 1228 | |
| 1229 log = []; | |
| 1230 assertThrowsEquals(() => { | |
| 1231 for (let x of g1()) { | |
| 1232 for (let y of g2()) { | |
| 1233 } | |
| 1234 } | |
| 1235 }, -3); | |
| 1236 assertEquals([1], log); | |
| 1237 | |
| 1238 log = []; | |
| 1239 assertThrowsEquals(() => { | |
| 1240 for (let x of g1()) { | |
| 1241 for (let y of g2()) { | |
| 1242 if (y == -2) break; | |
| 1243 } | |
| 1244 } | |
| 1245 }, -5); | |
| 1246 assertEquals([2, 1], log); | |
| 1247 | |
| 1248 log = []; | |
| 1249 assertThrowsEquals(() => { | |
| 1250 l: for (let x of g1()) { | |
| 1251 for (let y of g2()) { | |
| 1252 if (y == -2) break l; | |
| 1253 } | |
| 1254 } | |
| 1255 }, -5); | |
| 1256 assertEquals([2, 1], log); | |
| 1257 | |
| 1258 log = []; | |
| 1259 assertThrowsEquals(() => { | |
| 1260 for (let x of g1()) { | |
| 1261 for (let y of g2()) { | |
| 1262 throw 4; | |
| 1263 } | |
| 1264 } | |
| 1265 }, 4); | |
| 1266 assertEquals([2, 1], log); | |
| 1267 | |
| 1268 log = []; | |
| 1269 assertThrowsEquals(() => { | |
| 1270 for (let x of g1()) { | |
| 1271 for (let y of g2()) { | |
| 1272 if (y == -2) throw 4; | |
| 1273 } | |
| 1274 } | |
| 1275 }, 4); | |
| 1276 assertEquals([2, 1], log); | |
| 1277 | |
| 1278 log = []; | |
| 1279 assertThrowsEquals(() => { | |
| 1280 for (let x of g1()) { | |
| 1281 try { | |
| 1282 for (let y of g2()) { | |
| 1283 } | |
| 1284 } catch (_) {} | |
| 1285 } | |
| 1286 }, 3); | |
| 1287 assertEquals([], log); | |
| 1288 | |
| 1289 log = []; | |
| 1290 assertThrowsEquals(() => { | |
| 1291 for (let x of g1()) { | |
| 1292 try { | |
| 1293 for (let y of g2()) { | |
| 1294 } | |
| 1295 } catch (_) {} | |
| 1296 if (x == 2) break; | |
| 1297 } | |
| 1298 }, 5); | |
| 1299 assertEquals([1], log); | |
| 1300 } | |
| 1301 | |
| 1302 | |
| 1303 // yield*, argument's return method is "undefined". | |
| 1304 function TestYieldStarWithoutReturn(get_iterable) { | |
| 1305 assertTrue(get_iterable().return == undefined); | |
| 1306 | |
| 1307 function* g() { yield* get_iterable() } | |
| 1308 | |
| 1309 { | |
| 1310 let gen = g(); | |
| 1311 assertEquals({value: 1, done: false}, gen.next()); | |
| 1312 assertEquals({value: undefined, done: true}, gen.return()); | |
| 1313 } | |
| 1314 | |
| 1315 assertEquals(42, (() => { | |
| 1316 for (let x of g()) break; | |
| 1317 return 42; | |
| 1318 })()); | |
| 1319 | |
| 1320 assertEquals(42, (() => { | |
| 1321 for (let x of g()) return 42; | |
| 1322 })()); | |
| 1323 | |
| 1324 assertThrowsEquals(() => { | |
| 1325 for (let x of g()) throw 42; | |
| 1326 }, 42); | |
| 1327 } | |
| 1328 { | |
| 1329 let get_iterable1 = () => [1, 2]; | |
| 1330 let get_iterable2 = function*() { yield 1; yield 2 }; | |
| 1331 get_iterable2.prototype.return = null; | |
| 1332 TestYieldStarWithoutReturn(get_iterable1); | |
| 1333 TestYieldStarWithoutReturn(get_iterable2); | |
| 1334 } | |
| 1335 | |
| 1336 | |
| 1337 // yield*, argument's return method is defined. | |
| 1338 { | |
| 1339 let get_iterable = function*() { yield 1; yield 2 }; | |
| 1340 const obj = {}; | |
| 1341 get_iterable.prototype.return = (...args) => obj; | |
| 1342 | |
| 1343 function* g() { yield* get_iterable() } | |
| 1344 | |
| 1345 { | |
| 1346 let gen = g(); | |
| 1347 assertEquals({value: 1, done: false}, gen.next()); | |
| 1348 assertSame(obj, gen.return()); | |
| 1349 assertSame(obj, gen.return()); | |
| 1350 assertSame(obj, gen.return()); | |
| 1351 assertEquals({value: 2, done: false}, gen.next()); | |
| 1352 assertSame(obj, gen.return()); | |
| 1353 assertSame(obj, gen.return()); | |
| 1354 assertSame(obj, gen.return()); | |
| 1355 assertEquals({value: undefined, done: true}, gen.next()); | |
| 1356 assertEquals({value: undefined, done: true}, gen.return()); | |
| 1357 assertEquals({value: undefined, done: true}, gen.return()); | |
| 1358 } | |
| 1359 | |
| 1360 assertEquals(42, (() => { | |
| 1361 for (let x of g()) break; | |
| 1362 return 42; | |
| 1363 })()); | |
| 1364 | |
| 1365 assertEquals(42, (() => { | |
| 1366 for (let x of g()) return 42; | |
| 1367 })()); | |
| 1368 | |
| 1369 assertThrowsEquals(() => { | |
| 1370 for (let x of g()) throw 42; | |
| 1371 }, 42); | |
| 1372 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2096933002:
Remove all harmony runtime flags which shipped in M51 (Closed)
Base URL: https://chromium.googlesource.com/v8/v8.git@master