Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1 | // Copyright 2015 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 | function PrintDesc(desc, s) { |
| 8 | var json; |
| 9 | if (desc) { |
| 10 | json = JSON.stringify(desc); |
| 11 | } else { |
| 12 | json = "<no such property>"; |
| 13 | } |
| 14 | if (s === undefined) { |
| 15 | print(json); |
| 16 | } else { |
| 17 | print(s + ": " + json); |
| 18 | } |
| 19 | } |
| 20 | |
| 21 | |
| 22 | var counters; |
| 23 | var test_realm; |
| 24 | var cfg; |
| 25 | |
| 26 | |
| 27 | function GetDescriptor() { |
| 28 | var code = 'Object.getOwnPropertyDescriptor(global, "x")'; |
| 29 | var desc = Realm.eval(test_realm, code); |
| 30 | // PrintDesc(desc); |
| 31 | return desc; |
| 32 | } |
| 33 | |
| 34 | function SetUp() { |
| 35 | counters = {}; |
| 36 | Realm.shared = {counters: counters}; |
| 37 | test_realm = Realm.create(); |
| 38 | Realm.eval(test_realm, 'var global = Realm.global(Realm.current());'); |
| 39 | print("====================="); |
| 40 | print("Test realm: " + test_realm); |
| 41 | assertEquals(undefined, GetDescriptor()); |
| 42 | } |
| 43 | |
| 44 | function TearDown() { |
| 45 | Realm.dispose(test_realm); |
| 46 | print("OK"); |
| 47 | } |
| 48 | |
| 49 | |
| 50 | function AddStrict(code, cfg) { |
| 51 | return cfg.strict ? '"use strict"; ' + code : code; |
| 52 | } |
| 53 | |
| 54 | function ForceMutablePropertyCellType() { |
| 55 | Realm.eval(test_realm, 'global.x = {}; global.x = undefined;'); |
| 56 | } |
| 57 | |
| 58 | function DeclareVar() { |
| 59 | var code = 'var x;'; |
| 60 | return Realm.eval(test_realm, AddStrict(code, cfg)); |
| 61 | } |
| 62 | |
| 63 | function DefineVar(v) { |
| 64 | var code = 'var x = ' + v; |
| 65 | return Realm.eval(test_realm, AddStrict(code, cfg)); |
| 66 | } |
| 67 | |
| 68 | function DefineLoadVar() { |
| 69 | var name = 'LoadVar_' + test_realm; |
| 70 | var code = |
| 71 | 'var x;' + |
| 72 | 'function ' + name + '() {' + |
| 73 | ' return x;' + |
| 74 | '};'; |
| 75 | return Realm.eval(test_realm, AddStrict(code, cfg)); |
| 76 | } |
| 77 | |
| 78 | function LoadVar() { |
| 79 | var name = 'LoadVar_' + test_realm; |
| 80 | var code = |
| 81 | (cfg.optimize ? '%OptimizeFunctionOnNextCall(' + name + ');' : '') + |
| 82 | name + '();'; |
| 83 | return Realm.eval(test_realm, AddStrict(code, cfg)); |
| 84 | } |
| 85 | |
| 86 | function DefineStoreVar() { |
| 87 | var name = 'StoreVar_' + test_realm; |
| 88 | var code = 'var g = (Function("return this"))();' + |
| 89 | 'var x;' + |
| 90 | 'function ' + name + '(v) {' + |
| 91 | // ' %DebugPrint(g);' + |
| 92 | ' return x = v;' + |
| 93 | '};'; |
| 94 | return Realm.eval(test_realm, AddStrict(code, cfg)); |
| 95 | } |
| 96 | |
| 97 | function StoreVar(v) { |
| 98 | var name = 'StoreVar_' + test_realm; |
| 99 | var code = |
| 100 | (cfg.optimize ? '%OptimizeFunctionOnNextCall(' + name + ');' : '') + |
| 101 | name + '(' + v + ');'; |
| 102 | return Realm.eval(test_realm, AddStrict(code, cfg)); |
| 103 | } |
| 104 | |
| 105 | // It does 13 iterations which results in 27 loads |
| 106 | // and 14 stores. |
| 107 | function LoadStoreLoop() { |
| 108 | var code = 'for(var x = 0; x < 13; x++);'; |
| 109 | return Realm.eval(test_realm, AddStrict(code, cfg)); |
| 110 | } |
| 111 | |
| 112 | function DefineRWDataProperty() { |
| 113 | var code = |
| 114 | 'Object.defineProperty(global, "x", { ' + |
| 115 | ' value: 42, ' + |
| 116 | ' writable: true, ' + |
| 117 | ' enumerable: true, ' + |
| 118 | ' configurable: true ' + |
| 119 | '});'; |
| 120 | return Realm.eval(test_realm, AddStrict(code, cfg)); |
| 121 | } |
| 122 | |
| 123 | function DefineRODataProperty() { |
| 124 | var code = |
| 125 | 'Object.defineProperty(global, "x", { ' + |
| 126 | ' value: 42, ' + |
| 127 | ' writable: false, ' + |
| 128 | ' enumerable: true, ' + |
| 129 | ' configurable: true ' + |
| 130 | '});'; |
| 131 | return Realm.eval(test_realm, AddStrict(code, cfg)); |
| 132 | } |
| 133 | |
| 134 | function SetX_(v) { |
| 135 | var code = |
| 136 | 'global.x_ = ' + v + '; '; |
| 137 | return Realm.eval(test_realm, code); |
| 138 | } |
| 139 | |
| 140 | function DefineRWAccessorProperty() { |
| 141 | var code = |
| 142 | 'Object.defineProperty(global, "x", {' + |
| 143 | ' get: function() { Realm.shared.counters.get_count++; return this.x_; },' + |
| 144 | ' set: function(v) { Realm.shared.counters.set_count++; this.x_ = v; },' + |
| 145 | ' enumerable: true, configurable: true' + |
| 146 | '});'; |
| 147 | counters.get_count = 0; |
| 148 | counters.set_count = 0; |
| 149 | return Realm.eval(test_realm, AddStrict(code, cfg)); |
| 150 | } |
| 151 | |
| 152 | function DefineROAccessorProperty() { |
| 153 | var code = |
| 154 | 'Object.defineProperty(global, "x", {' + |
| 155 | ' get: function() { Realm.shared.counters.get_count++; return this.x_; },' + |
| 156 | ' enumerable: true, configurable: true' + |
| 157 | '});'; |
| 158 | counters.get_count = 0; |
| 159 | counters.set_count = 0; |
| 160 | return Realm.eval(test_realm, AddStrict(code, cfg)); |
| 161 | } |
| 162 | |
| 163 | |
| 164 | function testSuite(opt_cfg) { |
| 165 | // |
| 166 | // Non strict. |
| 167 | // |
| 168 | |
| 169 | (function() { |
| 170 | SetUp(); |
| 171 | cfg = {optimize: opt_cfg.optimize, strict: false}; |
| 172 | DeclareVar(); |
| 173 | DefineLoadVar(); |
| 174 | DefineStoreVar(); |
| 175 | assertEquals(undefined, LoadVar()); |
| 176 | assertEquals(false, GetDescriptor().configurable); |
| 177 | |
| 178 | // Force property cell type to kMutable. |
| 179 | DefineVar(undefined); |
| 180 | DefineVar(153); |
| 181 | assertEquals(false, GetDescriptor().configurable); |
| 182 | |
| 183 | assertEquals(153, LoadVar()); |
| 184 | assertEquals(113, StoreVar(113)); |
| 185 | assertEquals(113, LoadVar()); |
| 186 | LoadStoreLoop(); |
| 187 | assertEquals(13, LoadVar()); |
| 188 | TearDown(); |
| 189 | })(); |
| 190 | |
| 191 | |
| 192 | (function() { |
| 193 | SetUp(); |
| 194 | cfg = {optimize: opt_cfg.optimize, strict: false}; |
| 195 | ForceMutablePropertyCellType(); |
| 196 | DefineLoadVar(); |
| 197 | DefineStoreVar(); |
| 198 | DefineRWDataProperty(); |
| 199 | assertEquals(42, LoadVar()); |
| 200 | assertEquals(true, GetDescriptor().configurable); |
| 201 | |
| 202 | DefineVar(153); |
| 203 | assertEquals(true, GetDescriptor().configurable); |
| 204 | |
| 205 | assertEquals(153, LoadVar()); |
| 206 | assertEquals(113, StoreVar(113)); |
| 207 | assertEquals(113, LoadVar()); |
| 208 | LoadStoreLoop(); |
| 209 | assertEquals(13, LoadVar()); |
| 210 | |
| 211 | // Now reconfigure to accessor. |
| 212 | DefineRWAccessorProperty(); |
| 213 | assertEquals(undefined, GetDescriptor().value); |
| 214 | assertEquals(true, GetDescriptor().configurable); |
| 215 | assertEquals(0, counters.get_count); |
| 216 | assertEquals(0, counters.set_count); |
| 217 | |
| 218 | assertEquals(undefined, LoadVar()); |
| 219 | assertEquals(1, counters.get_count); |
| 220 | assertEquals(0, counters.set_count); |
| 221 | |
| 222 | LoadStoreLoop(); |
| 223 | assertEquals(28, counters.get_count); |
| 224 | assertEquals(14, counters.set_count); |
| 225 | |
| 226 | assertEquals(13, LoadVar()); |
| 227 | assertEquals(29, counters.get_count); |
| 228 | assertEquals(14, counters.set_count); |
| 229 | |
| 230 | TearDown(); |
| 231 | })(); |
| 232 | |
| 233 | |
| 234 | (function() { |
| 235 | SetUp(); |
| 236 | cfg = {optimize: opt_cfg.optimize, strict: false}; |
| 237 | ForceMutablePropertyCellType(); |
| 238 | DefineLoadVar(); |
| 239 | DefineStoreVar(); |
| 240 | DefineRODataProperty(); |
| 241 | assertEquals(42, LoadVar()); |
| 242 | assertEquals(true, GetDescriptor().configurable); |
| 243 | |
| 244 | DefineVar(153); |
| 245 | |
| 246 | assertEquals(42, LoadVar()); |
| 247 | assertEquals(113, StoreVar(113)); |
| 248 | assertEquals(42, LoadVar()); |
| 249 | LoadStoreLoop(); |
| 250 | assertEquals(42, LoadVar()); |
| 251 | |
| 252 | // Now reconfigure to accessor property. |
| 253 | DefineRWAccessorProperty(); |
| 254 | assertEquals(undefined, GetDescriptor().value); |
| 255 | assertEquals(true, GetDescriptor().configurable); |
| 256 | assertEquals(0, counters.get_count); |
| 257 | assertEquals(0, counters.set_count); |
| 258 | |
| 259 | assertEquals(undefined, LoadVar()); |
| 260 | assertEquals(1, counters.get_count); |
| 261 | assertEquals(0, counters.set_count); |
| 262 | |
| 263 | LoadStoreLoop(); |
| 264 | assertEquals(28, counters.get_count); |
| 265 | assertEquals(14, counters.set_count); |
| 266 | |
| 267 | assertEquals(13, LoadVar()); |
| 268 | assertEquals(29, counters.get_count); |
| 269 | assertEquals(14, counters.set_count); |
| 270 | |
| 271 | TearDown(); |
| 272 | })(); |
| 273 | |
| 274 | |
| 275 | (function() { |
| 276 | SetUp(); |
| 277 | cfg = {optimize: opt_cfg.optimize, strict: false}; |
| 278 | ForceMutablePropertyCellType(); |
| 279 | DefineLoadVar(); |
| 280 | DefineStoreVar(); |
| 281 | DefineRWAccessorProperty(); |
| 282 | assertEquals(0, counters.get_count); |
| 283 | assertEquals(0, counters.set_count); |
| 284 | assertEquals(true, GetDescriptor().configurable); |
| 285 | |
| 286 | assertEquals(undefined, LoadVar()); |
| 287 | assertEquals(1, counters.get_count); |
| 288 | assertEquals(0, counters.set_count); |
| 289 | |
| 290 | DefineVar(153); |
| 291 | assertEquals(true, GetDescriptor().configurable); |
| 292 | assertEquals(1, counters.get_count); |
| 293 | assertEquals(1, counters.set_count); |
| 294 | |
| 295 | assertEquals(153, LoadVar()); |
| 296 | assertEquals(2, counters.get_count); |
| 297 | assertEquals(1, counters.set_count); |
| 298 | |
| 299 | assertEquals(113, StoreVar(113)); |
| 300 | assertEquals(2, counters.get_count); |
| 301 | assertEquals(2, counters.set_count); |
| 302 | |
| 303 | assertEquals(113, LoadVar()); |
| 304 | assertEquals(3, counters.get_count); |
| 305 | assertEquals(2, counters.set_count); |
| 306 | |
| 307 | LoadStoreLoop(); |
| 308 | assertEquals(30, counters.get_count); |
| 309 | assertEquals(16, counters.set_count); |
| 310 | |
| 311 | assertEquals(13, LoadVar()); |
| 312 | assertEquals(31, counters.get_count); |
| 313 | assertEquals(16, counters.set_count); |
| 314 | |
| 315 | // Now reconfigure to data property. |
| 316 | DefineRWDataProperty(); |
| 317 | assertEquals(42, GetDescriptor().value); |
| 318 | assertEquals(42, LoadVar()); |
| 319 | assertEquals(113, StoreVar(113)); |
| 320 | assertEquals(31, counters.get_count); |
| 321 | assertEquals(16, counters.set_count); |
| 322 | |
| 323 | TearDown(); |
| 324 | })(); |
| 325 | |
| 326 | |
| 327 | (function() { |
| 328 | SetUp(); |
| 329 | cfg = {optimize: opt_cfg.optimize, strict: false}; |
| 330 | ForceMutablePropertyCellType(); |
| 331 | DefineLoadVar(); |
| 332 | DefineStoreVar(); |
| 333 | DefineROAccessorProperty(); |
| 334 | assertEquals(0, counters.get_count); |
| 335 | assertEquals(0, counters.set_count); |
| 336 | assertEquals(true, GetDescriptor().configurable); |
| 337 | |
| 338 | assertEquals(undefined, LoadVar()); |
| 339 | assertEquals(1, counters.get_count); |
| 340 | assertEquals(0, counters.set_count); |
| 341 | |
| 342 | SetX_(42); |
| 343 | assertEquals(42, LoadVar()); |
| 344 | assertEquals(2, counters.get_count); |
| 345 | assertEquals(0, counters.set_count); |
| 346 | |
| 347 | DefineVar(153); |
| 348 | assertEquals(true, GetDescriptor().configurable); |
| 349 | assertEquals(2, counters.get_count); |
| 350 | assertEquals(0, counters.set_count); |
| 351 | |
| 352 | assertEquals(42, LoadVar()); |
| 353 | assertEquals(3, counters.get_count); |
| 354 | assertEquals(0, counters.set_count); |
| 355 | |
| 356 | assertEquals(113, StoreVar(113)); |
| 357 | assertEquals(3, counters.get_count); |
| 358 | assertEquals(0, counters.set_count); |
| 359 | |
| 360 | assertEquals(42, LoadVar()); |
| 361 | assertEquals(4, counters.get_count); |
| 362 | assertEquals(0, counters.set_count); |
| 363 | |
| 364 | LoadStoreLoop(); |
| 365 | assertEquals(5, counters.get_count); |
| 366 | assertEquals(0, counters.set_count); |
| 367 | |
| 368 | assertEquals(42, LoadVar()); |
| 369 | assertEquals(6, counters.get_count); |
| 370 | assertEquals(0, counters.set_count); |
| 371 | |
| 372 | // Now reconfigure to data property. |
| 373 | DefineRWDataProperty(); |
| 374 | assertEquals(42, GetDescriptor().value); |
| 375 | assertEquals(42, LoadVar()); |
| 376 | assertEquals(113, StoreVar(113)); |
| 377 | assertEquals(6, counters.get_count); |
| 378 | assertEquals(0, counters.set_count); |
| 379 | |
| 380 | TearDown(); |
| 381 | })(); |
| 382 | |
| 383 | |
| 384 | // |
| 385 | // Strict. |
| 386 | // |
| 387 | |
| 388 | (function() { |
| 389 | SetUp(); |
| 390 | cfg = {optimize: opt_cfg.optimize, strict: true}; |
| 391 | DeclareVar(); |
| 392 | DefineLoadVar(); |
| 393 | DefineStoreVar(); |
| 394 | assertEquals(undefined, LoadVar()); |
| 395 | assertEquals(false, GetDescriptor().configurable); |
| 396 | |
| 397 | // Force property cell type to kMutable. |
| 398 | DefineVar(undefined); |
| 399 | DefineVar(153); |
| 400 | assertEquals(false, GetDescriptor().configurable); |
| 401 | |
| 402 | assertEquals(153, LoadVar()); |
| 403 | assertEquals(113, StoreVar(113)); |
| 404 | assertEquals(113, LoadVar()); |
| 405 | LoadStoreLoop(); |
| 406 | assertEquals(13, LoadVar()); |
| 407 | TearDown(); |
| 408 | })(); |
| 409 | |
| 410 | |
| 411 | (function() { |
| 412 | SetUp(); |
| 413 | cfg = {optimize: opt_cfg.optimize, strict: true}; |
| 414 | ForceMutablePropertyCellType(); |
| 415 | DefineLoadVar(); |
| 416 | DefineStoreVar(); |
| 417 | DefineRWDataProperty(); |
| 418 | assertEquals(42, LoadVar()); |
| 419 | assertEquals(true, GetDescriptor().configurable); |
| 420 | |
| 421 | DefineVar(153); |
| 422 | assertEquals(true, GetDescriptor().configurable); |
| 423 | |
| 424 | assertEquals(153, LoadVar()); |
| 425 | assertEquals(113, StoreVar(113)); |
| 426 | assertEquals(113, LoadVar()); |
| 427 | LoadStoreLoop(); |
| 428 | assertEquals(13, LoadVar()); |
| 429 | TearDown(); |
| 430 | })(); |
| 431 | |
| 432 | |
| 433 | (function() { |
| 434 | SetUp(); |
| 435 | cfg = {optimize: opt_cfg.optimize, strict: true}; |
| 436 | ForceMutablePropertyCellType(); |
| 437 | DefineLoadVar(); |
| 438 | DefineStoreVar(); |
| 439 | DefineRWDataProperty(); |
| 440 | assertEquals(true, GetDescriptor().configurable); |
| 441 | assertEquals(true, GetDescriptor().writable); |
| 442 | assertEquals(113, StoreVar(113)); |
| 443 | |
| 444 | DefineRODataProperty(); |
| 445 | assertEquals(true, GetDescriptor().configurable); |
| 446 | assertEquals(false, GetDescriptor().writable); |
| 447 | |
| 448 | assertEquals(42, LoadVar()); |
| 449 | assertEquals(true, GetDescriptor().configurable); |
| 450 | assertThrows('DefineVar(153)'); |
| 451 | assertEquals(42, LoadVar()); |
| 452 | assertThrows('StoreVar(113)'); |
| 453 | assertThrows('StoreVar(113)'); |
| 454 | assertEquals(42, LoadVar()); |
| 455 | assertThrows('StoreVar(42)'); |
| 456 | assertEquals(42, LoadVar()); |
| 457 | assertThrows('LoadStoreLoop()'); |
| 458 | assertEquals(42, LoadVar()); |
| 459 | TearDown(); |
| 460 | })(); |
| 461 | |
| 462 | |
| 463 | (function() { |
| 464 | SetUp(); |
| 465 | cfg = {optimize: opt_cfg.optimize, strict: true}; |
| 466 | ForceMutablePropertyCellType(); |
| 467 | DefineLoadVar(); |
| 468 | DefineStoreVar(); |
| 469 | DefineRWAccessorProperty(); |
| 470 | assertEquals(0, counters.get_count); |
| 471 | assertEquals(0, counters.set_count); |
| 472 | assertEquals(true, GetDescriptor().configurable); |
| 473 | |
| 474 | assertEquals(undefined, LoadVar()); |
| 475 | assertEquals(1, counters.get_count); |
| 476 | assertEquals(0, counters.set_count); |
| 477 | |
| 478 | DefineVar(153); |
| 479 | assertEquals(true, GetDescriptor().configurable); |
| 480 | assertEquals(1, counters.get_count); |
| 481 | assertEquals(1, counters.set_count); |
| 482 | |
| 483 | assertEquals(153, LoadVar()); |
| 484 | assertEquals(2, counters.get_count); |
| 485 | assertEquals(1, counters.set_count); |
| 486 | |
| 487 | assertEquals(113, StoreVar(113)); |
| 488 | assertEquals(2, counters.get_count); |
| 489 | assertEquals(2, counters.set_count); |
| 490 | |
| 491 | assertEquals(113, LoadVar()); |
| 492 | assertEquals(3, counters.get_count); |
| 493 | assertEquals(2, counters.set_count); |
| 494 | |
| 495 | LoadStoreLoop(); |
| 496 | assertEquals(30, counters.get_count); |
| 497 | assertEquals(16, counters.set_count); |
| 498 | |
| 499 | assertEquals(13, LoadVar()); |
| 500 | assertEquals(31, counters.get_count); |
| 501 | assertEquals(16, counters.set_count); |
| 502 | |
| 503 | // Now reconfigure to data property. |
| 504 | DefineRWDataProperty(); |
| 505 | assertEquals(42, GetDescriptor().value); |
| 506 | assertEquals(42, LoadVar()); |
| 507 | assertEquals(113, StoreVar(113)); |
| 508 | assertEquals(31, counters.get_count); |
| 509 | assertEquals(16, counters.set_count); |
| 510 | |
| 511 | TearDown(); |
| 512 | })(); |
| 513 | |
| 514 | |
| 515 | (function() { |
| 516 | SetUp(); |
| 517 | cfg = {optimize: opt_cfg.optimize, strict: true}; |
| 518 | ForceMutablePropertyCellType(); |
| 519 | DefineLoadVar(); |
| 520 | DefineStoreVar(); |
| 521 | DefineROAccessorProperty(); |
| 522 | assertEquals(0, counters.get_count); |
| 523 | assertEquals(0, counters.set_count); |
| 524 | assertEquals(true, GetDescriptor().configurable); |
| 525 | |
| 526 | assertEquals(undefined, LoadVar()); |
| 527 | assertEquals(1, counters.get_count); |
| 528 | assertEquals(0, counters.set_count); |
| 529 | |
| 530 | SetX_(42); |
| 531 | assertEquals(42, LoadVar()); |
| 532 | assertEquals(2, counters.get_count); |
| 533 | assertEquals(0, counters.set_count); |
| 534 | |
| 535 | assertThrows('DefineVar(153)'); |
| 536 | assertEquals(true, GetDescriptor().configurable); |
| 537 | assertEquals(2, counters.get_count); |
| 538 | assertEquals(0, counters.set_count); |
| 539 | |
| 540 | assertEquals(42, LoadVar()); |
| 541 | assertEquals(3, counters.get_count); |
| 542 | assertEquals(0, counters.set_count); |
| 543 | |
| 544 | assertThrows('StoreVar(113)'); |
| 545 | assertEquals(3, counters.get_count); |
| 546 | assertEquals(0, counters.set_count); |
| 547 | |
| 548 | assertEquals(42, LoadVar()); |
| 549 | assertEquals(4, counters.get_count); |
| 550 | assertEquals(0, counters.set_count); |
| 551 | |
| 552 | assertThrows('LoadStoreLoop()'); |
| 553 | assertEquals(4, counters.get_count); |
| 554 | assertEquals(0, counters.set_count); |
| 555 | |
| 556 | assertEquals(42, LoadVar()); |
| 557 | assertEquals(5, counters.get_count); |
| 558 | assertEquals(0, counters.set_count); |
| 559 | |
| 560 | // Now reconfigure to data property. |
| 561 | DefineRWDataProperty(); |
| 562 | assertEquals(42, GetDescriptor().value); |
| 563 | assertEquals(42, LoadVar()); |
| 564 | assertEquals(113, StoreVar(113)); |
| 565 | assertEquals(5, counters.get_count); |
| 566 | assertEquals(0, counters.set_count); |
| 567 | |
| 568 | TearDown(); |
| 569 | })(); |
| 570 | |
| 571 | } // testSuite |
| 572 | |
| 573 | |
| 574 | testSuite({optimize: false}); |
| 575 | testSuite({optimize: true}); |