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| 1 // Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file | |
| 2 // for details. All rights reserved. Use of this source code is governed by a | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 | |
| 5 library fasta.builder_accessors; | |
| 6 | |
| 7 export 'package:kernel/frontend/accessors.dart' show wrapInvalid; | |
| 8 | |
| 9 import 'package:kernel/frontend/accessors.dart' | |
| 10 show Accessor, buildIsNull, makeLet; | |
| 11 | |
| 12 import 'package:kernel/ast.dart'; | |
| 13 | |
| 14 import '../errors.dart' show internalError; | |
| 15 | |
| 16 import '../builder/scope.dart' show AccessErrorBuilder, ProblemBuilder; | |
| 17 | |
| 18 import 'package:kernel/frontend/accessors.dart' as kernel | |
| 19 show | |
| 20 IndexAccessor, | |
| 21 NullAwarePropertyAccessor, | |
| 22 PropertyAccessor, | |
| 23 StaticAccessor, | |
| 24 SuperIndexAccessor, | |
| 25 SuperPropertyAccessor, | |
| 26 ThisIndexAccessor, | |
| 27 ThisPropertyAccessor, | |
| 28 VariableAccessor; | |
| 29 | |
| 30 import 'kernel_builder.dart' | |
| 31 show Builder, KernelClassBuilder, PrefixBuilder, TypeDeclarationBuilder; | |
| 32 | |
| 33 import '../names.dart' show callName; | |
| 34 | |
| 35 abstract class BuilderHelper { | |
| 36 Uri get uri; | |
| 37 | |
| 38 Constructor lookupConstructor(Name name, {bool isSuper}); | |
| 39 | |
| 40 Expression toSuperMethodInvocation(MethodInvocation node); | |
| 41 | |
| 42 Expression toValue(node); | |
| 43 | |
| 44 Member lookupSuperMember(Name name, {bool isSetter: false}); | |
| 45 | |
| 46 builderToFirstExpression(Builder builder, String name, int offset); | |
| 47 | |
| 48 finishSend(Object receiver, Arguments arguments, int offset); | |
| 49 | |
| 50 Expression buildCompileTimeError(error, [int offset]); | |
| 51 | |
| 52 Initializer buildCompileTimeErrorIntializer(error, [int offset]); | |
| 53 | |
| 54 Expression buildStaticInvocation(Procedure target, Arguments arguments); | |
| 55 | |
| 56 Expression buildProblemExpression(ProblemBuilder builder, int offset); | |
| 57 | |
| 58 Expression throwNoSuchMethodError( | |
| 59 String name, Arguments arguments, int offset, | |
| 60 {bool isSuper: false, isGetter: false, isSetter: false}); | |
| 61 } | |
| 62 | |
| 63 abstract class BuilderAccessor implements Accessor { | |
| 64 BuilderHelper get helper; | |
| 65 | |
| 66 String get plainNameForRead; | |
| 67 | |
| 68 Uri get uri => helper.uri; | |
| 69 | |
| 70 String get plainNameForWrite => plainNameForRead; | |
| 71 | |
| 72 Expression buildForEffect() => buildSimpleRead(); | |
| 73 | |
| 74 Initializer buildFieldInitializer( | |
| 75 Map<String, FieldInitializer> initializers) { | |
| 76 // TODO(ahe): This error message is really bad. | |
| 77 return helper.buildCompileTimeErrorIntializer( | |
| 78 "Can't use $plainNameForRead here.", offset); | |
| 79 } | |
| 80 | |
| 81 Expression makeInvalidRead() { | |
| 82 return buildThrowNoSuchMethodError(new Arguments.empty(), isGetter: true); | |
| 83 } | |
| 84 | |
| 85 Expression makeInvalidWrite(Expression value) { | |
| 86 return buildThrowNoSuchMethodError(new Arguments(<Expression>[value]), | |
| 87 isSetter: true); | |
| 88 } | |
| 89 | |
| 90 /* Expression | BuilderAccessor */ doInvocation( | |
| 91 int offset, Arguments arguments); | |
| 92 | |
| 93 /* Expression | BuilderAccessor */ buildPropertyAccess( | |
| 94 IncompleteSend send, bool isNullAware) { | |
| 95 if (send is SendAccessor) { | |
| 96 return buildMethodInvocation( | |
| 97 buildSimpleRead(), send.name, send.arguments, send.offset, | |
| 98 isNullAware: isNullAware); | |
| 99 } else { | |
| 100 return PropertyAccessor.make(helper, send.offset, buildSimpleRead(), | |
| 101 send.name, null, null, isNullAware); | |
| 102 } | |
| 103 } | |
| 104 | |
| 105 /* Expression | BuilderAccessor */ buildThrowNoSuchMethodError( | |
| 106 Arguments arguments, | |
| 107 {bool isSuper: false, | |
| 108 isGetter: false, | |
| 109 isSetter: false, | |
| 110 String name, | |
| 111 int offset}) { | |
| 112 return helper.throwNoSuchMethodError( | |
| 113 name ?? plainNameForWrite, arguments, offset ?? this.offset, | |
| 114 isGetter: isGetter, isSetter: isSetter, isSuper: isSuper); | |
| 115 } | |
| 116 | |
| 117 bool get isThisPropertyAccessor => false; | |
| 118 } | |
| 119 | |
| 120 abstract class CompileTimeErrorAccessor implements BuilderAccessor { | |
| 121 @override | |
| 122 Expression get builtBinary => internalError("Unsupported operation."); | |
| 123 | |
| 124 @override | |
| 125 void set builtBinary(Expression expression) { | |
| 126 internalError("Unsupported operation."); | |
| 127 } | |
| 128 | |
| 129 @override | |
| 130 Expression get builtGetter => internalError("Unsupported operation."); | |
| 131 | |
| 132 @override | |
| 133 void set builtGetter(Expression expression) { | |
| 134 internalError("Unsupported operation."); | |
| 135 } | |
| 136 | |
| 137 Expression buildError(); | |
| 138 | |
| 139 Name get name => internalError("Unsupported operation."); | |
| 140 | |
| 141 String get plainNameForRead => name.name; | |
| 142 | |
| 143 withReceiver(Object receiver, {bool isNullAware}) => this; | |
| 144 | |
| 145 Initializer buildFieldInitializer( | |
| 146 Map<String, FieldInitializer> initializers) { | |
| 147 return new LocalInitializer(new VariableDeclaration.forValue(buildError())); | |
| 148 } | |
| 149 | |
| 150 doInvocation(int offset, Arguments arguments) => this; | |
| 151 | |
| 152 buildPropertyAccess(IncompleteSend send, bool isNullAware) => this; | |
| 153 | |
| 154 buildThrowNoSuchMethodError(Arguments arguments, | |
| 155 {bool isSuper: false, | |
| 156 isGetter: false, | |
| 157 isSetter: false, | |
| 158 String name, | |
| 159 int offset}) { | |
| 160 return this; | |
| 161 } | |
| 162 | |
| 163 Expression buildAssignment(Expression value, {bool voidContext: false}) { | |
| 164 return buildError(); | |
| 165 } | |
| 166 | |
| 167 Expression buildCompoundAssignment(Name binaryOperator, Expression value, | |
| 168 {int offset: TreeNode.noOffset, | |
| 169 bool voidContext: false, | |
| 170 Procedure interfaceTarget}) { | |
| 171 return buildError(); | |
| 172 } | |
| 173 | |
| 174 Expression buildPrefixIncrement(Name binaryOperator, | |
| 175 {int offset: TreeNode.noOffset, | |
| 176 bool voidContext: false, | |
| 177 Procedure interfaceTarget}) { | |
| 178 return buildError(); | |
| 179 } | |
| 180 | |
| 181 Expression buildPostfixIncrement(Name binaryOperator, | |
| 182 {int offset: TreeNode.noOffset, | |
| 183 bool voidContext: false, | |
| 184 Procedure interfaceTarget}) { | |
| 185 return buildError(); | |
| 186 } | |
| 187 | |
| 188 Expression buildNullAwareAssignment(Expression value, DartType type, | |
| 189 {bool voidContext: false}) { | |
| 190 return buildError(); | |
| 191 } | |
| 192 | |
| 193 Expression buildSimpleRead() => buildError(); | |
| 194 | |
| 195 Expression makeInvalidRead() => buildError(); | |
| 196 | |
| 197 Expression makeInvalidWrite(Expression value) => buildError(); | |
| 198 } | |
| 199 | |
| 200 class ThisAccessor extends BuilderAccessor { | |
| 201 final BuilderHelper helper; | |
| 202 | |
| 203 final int offset; | |
| 204 | |
| 205 final bool isInitializer; | |
| 206 | |
| 207 final bool isSuper; | |
| 208 | |
| 209 ThisAccessor(this.helper, this.offset, this.isInitializer, | |
| 210 {this.isSuper: false}); | |
| 211 | |
| 212 @override | |
| 213 Expression get builtBinary => internalError("Unsupported operation."); | |
| 214 | |
| 215 @override | |
| 216 void set builtBinary(Expression expression) { | |
| 217 internalError("Unsupported operation."); | |
| 218 } | |
| 219 | |
| 220 @override | |
| 221 Expression get builtGetter => internalError("Unsupported operation."); | |
| 222 | |
| 223 @override | |
| 224 void set builtGetter(Expression expression) { | |
| 225 internalError("Unsupported operation."); | |
| 226 } | |
| 227 | |
| 228 String get plainNameForRead => internalError(isSuper ? "super" : "this"); | |
| 229 | |
| 230 Expression buildSimpleRead() { | |
| 231 if (!isSuper) { | |
| 232 return new ThisExpression(); | |
| 233 } else { | |
| 234 return helper.buildCompileTimeError( | |
| 235 "Can't use `super` as an expression.", offset); | |
| 236 } | |
| 237 } | |
| 238 | |
| 239 Initializer buildFieldInitializer( | |
| 240 Map<String, FieldInitializer> initializers) { | |
| 241 String keyword = isSuper ? "super" : "this"; | |
| 242 return helper.buildCompileTimeErrorIntializer( | |
| 243 "Can't use '$keyword' here, did you mean '$keyword()'?", offset); | |
| 244 } | |
| 245 | |
| 246 buildPropertyAccess(IncompleteSend send, bool isNullAware) { | |
| 247 if (isInitializer && send is SendAccessor) { | |
| 248 return buildConstructorInitializer( | |
| 249 send.offset, send.name, send.arguments); | |
| 250 } | |
| 251 if (send is SendAccessor) { | |
| 252 // Notice that 'this' or 'super' can't be null. So we can ignore the | |
| 253 // value of [isNullAware]. | |
| 254 MethodInvocation result = buildMethodInvocation( | |
| 255 new ThisExpression(), send.name, send.arguments, offset); | |
| 256 return isSuper ? helper.toSuperMethodInvocation(result) : result; | |
| 257 } else { | |
| 258 if (isSuper) { | |
| 259 Member getter = helper.lookupSuperMember(send.name); | |
| 260 Member setter = helper.lookupSuperMember(send.name, isSetter: true); | |
| 261 return new SuperPropertyAccessor( | |
| 262 helper, send.offset, send.name, getter, setter); | |
| 263 } else { | |
| 264 return new ThisPropertyAccessor( | |
| 265 helper, send.offset, send.name, null, null); | |
| 266 } | |
| 267 } | |
| 268 } | |
| 269 | |
| 270 doInvocation(int offset, Arguments arguments) { | |
| 271 if (isInitializer) { | |
| 272 return buildConstructorInitializer(offset, new Name(""), arguments); | |
| 273 } else { | |
| 274 return buildMethodInvocation( | |
| 275 new ThisExpression(), callName, arguments, offset); | |
| 276 } | |
| 277 } | |
| 278 | |
| 279 Initializer buildConstructorInitializer( | |
| 280 int offset, Name name, Arguments arguments) { | |
| 281 Constructor constructor = helper.lookupConstructor(name, isSuper: isSuper); | |
| 282 Initializer result; | |
| 283 if (constructor == null) { | |
| 284 result = new LocalInitializer(new VariableDeclaration.forValue( | |
| 285 buildThrowNoSuchMethodError(arguments, | |
| 286 isSuper: isSuper, name: name.name, offset: offset))); | |
| 287 } else if (isSuper) { | |
| 288 result = new SuperInitializer(constructor, arguments); | |
| 289 } else { | |
| 290 result = new RedirectingInitializer(constructor, arguments); | |
| 291 } | |
| 292 return result..fileOffset = offset; | |
| 293 } | |
| 294 | |
| 295 Expression buildAssignment(Expression value, {bool voidContext: false}) { | |
| 296 return buildAssignmentError(); | |
| 297 } | |
| 298 | |
| 299 Expression buildNullAwareAssignment(Expression value, DartType type, | |
| 300 {bool voidContext: false}) { | |
| 301 return buildAssignmentError(); | |
| 302 } | |
| 303 | |
| 304 Expression buildCompoundAssignment(Name binaryOperator, Expression value, | |
| 305 {int offset: TreeNode.noOffset, | |
| 306 bool voidContext: false, | |
| 307 Procedure interfaceTarget}) { | |
| 308 return buildAssignmentError(); | |
| 309 } | |
| 310 | |
| 311 Expression buildPrefixIncrement(Name binaryOperator, | |
| 312 {int offset: TreeNode.noOffset, | |
| 313 bool voidContext: false, | |
| 314 Procedure interfaceTarget}) { | |
| 315 return buildAssignmentError(); | |
| 316 } | |
| 317 | |
| 318 Expression buildPostfixIncrement(Name binaryOperator, | |
| 319 {int offset: TreeNode.noOffset, | |
| 320 bool voidContext: false, | |
| 321 Procedure interfaceTarget}) { | |
| 322 return buildAssignmentError(); | |
| 323 } | |
| 324 | |
| 325 Expression buildAssignmentError() { | |
| 326 String message = | |
| 327 isSuper ? "Can't assign to 'super'." : "Can't assign to 'this'."; | |
| 328 return helper.buildCompileTimeError(message, offset); | |
| 329 } | |
| 330 | |
| 331 toString() => "ThisAccessor($offset${isSuper ? ', super' : ''})"; | |
| 332 } | |
| 333 | |
| 334 abstract class IncompleteSend extends BuilderAccessor { | |
| 335 final BuilderHelper helper; | |
| 336 | |
| 337 @override | |
| 338 final int offset; | |
| 339 | |
| 340 final Name name; | |
| 341 | |
| 342 IncompleteSend(this.helper, this.offset, this.name); | |
| 343 | |
| 344 @override | |
| 345 Expression get builtBinary => internalError("Unsupported operation."); | |
| 346 | |
| 347 @override | |
| 348 void set builtBinary(Expression expression) { | |
| 349 internalError("Unsupported operation."); | |
| 350 } | |
| 351 | |
| 352 @override | |
| 353 Expression get builtGetter => internalError("Unsupported operation."); | |
| 354 | |
| 355 @override | |
| 356 void set builtGetter(Expression expression) { | |
| 357 internalError("Unsupported operation."); | |
| 358 } | |
| 359 | |
| 360 withReceiver(Object receiver, {bool isNullAware}); | |
| 361 } | |
| 362 | |
| 363 class IncompleteError extends IncompleteSend with CompileTimeErrorAccessor { | |
| 364 final Object error; | |
| 365 | |
| 366 IncompleteError(BuilderHelper helper, int offset, this.error) | |
| 367 : super(helper, offset, null); | |
| 368 | |
| 369 Expression buildError() { | |
| 370 return helper.buildCompileTimeError(error, offset); | |
| 371 } | |
| 372 } | |
| 373 | |
| 374 class SendAccessor extends IncompleteSend { | |
| 375 final Arguments arguments; | |
| 376 | |
| 377 SendAccessor(BuilderHelper helper, int offset, Name name, this.arguments) | |
| 378 : super(helper, offset, name) { | |
| 379 assert(arguments != null); | |
| 380 } | |
| 381 | |
| 382 String get plainNameForRead => name.name; | |
| 383 | |
| 384 Expression buildSimpleRead() { | |
| 385 return internalError("Unhandled"); | |
| 386 } | |
| 387 | |
| 388 Expression buildAssignment(Expression value, {bool voidContext: false}) { | |
| 389 return internalError("Unhandled"); | |
| 390 } | |
| 391 | |
| 392 withReceiver(Object receiver, {bool isNullAware: false}) { | |
| 393 if (receiver is TypeDeclarationBuilder) { | |
| 394 /// `SomeType?.toString` is the same as `SomeType.toString`, not | |
| 395 /// `(SomeType).toString`. | |
| 396 isNullAware = false; | |
| 397 } | |
| 398 if (receiver is BuilderAccessor) { | |
| 399 return receiver.buildPropertyAccess(this, isNullAware); | |
| 400 } | |
| 401 if (receiver is PrefixBuilder) { | |
| 402 PrefixBuilder prefix = receiver; | |
| 403 receiver = helper.builderToFirstExpression( | |
| 404 prefix.exports[name.name], "${prefix.name}.${name.name}", offset); | |
| 405 return helper.finishSend(receiver, arguments, offset); | |
| 406 } | |
| 407 Expression result; | |
| 408 if (receiver is KernelClassBuilder) { | |
| 409 Builder builder = receiver.findStaticBuilder(name.name, offset, uri); | |
| 410 if (builder == null) { | |
| 411 return buildThrowNoSuchMethodError(arguments); | |
| 412 } | |
| 413 if (builder.hasProblem) { | |
| 414 result = helper.buildProblemExpression(builder, offset); | |
| 415 } else { | |
| 416 Member target = builder.target; | |
| 417 if (target != null) { | |
| 418 if (target is Field) { | |
| 419 result = buildMethodInvocation(new StaticGet(target), callName, | |
| 420 arguments, offset + (target.name?.name?.length ?? 0), | |
| 421 isNullAware: isNullAware); | |
| 422 } else { | |
| 423 result = helper.buildStaticInvocation(target, arguments) | |
| 424 ..fileOffset = offset; | |
| 425 } | |
| 426 } else { | |
| 427 result = buildThrowNoSuchMethodError(arguments)..fileOffset = offset; | |
| 428 } | |
| 429 } | |
| 430 } else { | |
| 431 result = buildMethodInvocation( | |
| 432 helper.toValue(receiver), name, arguments, offset, | |
| 433 isNullAware: isNullAware); | |
| 434 } | |
| 435 return result; | |
| 436 } | |
| 437 | |
| 438 Expression buildNullAwareAssignment(Expression value, DartType type, | |
| 439 {bool voidContext: false}) { | |
| 440 return internalError("Unhandled"); | |
| 441 } | |
| 442 | |
| 443 Expression buildCompoundAssignment(Name binaryOperator, Expression value, | |
| 444 {int offset, bool voidContext: false, Procedure interfaceTarget}) { | |
| 445 return internalError("Unhandled"); | |
| 446 } | |
| 447 | |
| 448 Expression buildPrefixIncrement(Name binaryOperator, | |
| 449 {int offset, bool voidContext: false, Procedure interfaceTarget}) { | |
| 450 return internalError("Unhandled"); | |
| 451 } | |
| 452 | |
| 453 Expression buildPostfixIncrement(Name binaryOperator, | |
| 454 {int offset, bool voidContext: false, Procedure interfaceTarget}) { | |
| 455 return internalError("Unhandled"); | |
| 456 } | |
| 457 | |
| 458 Expression doInvocation(int offset, Arguments arguments) { | |
| 459 return internalError("Unhandled"); | |
| 460 } | |
| 461 | |
| 462 toString() => "SendAccessor($offset, $name, $arguments)"; | |
| 463 } | |
| 464 | |
| 465 class IncompletePropertyAccessor extends IncompleteSend { | |
| 466 IncompletePropertyAccessor(BuilderHelper helper, int offset, Name name) | |
| 467 : super(helper, offset, name); | |
| 468 | |
| 469 String get plainNameForRead => name.name; | |
| 470 | |
| 471 Expression buildSimpleRead() => internalError("Unhandled"); | |
| 472 | |
| 473 Expression buildAssignment(Expression value, {bool voidContext: false}) { | |
| 474 return internalError("Unhandled"); | |
| 475 } | |
| 476 | |
| 477 withReceiver(Object receiver, {bool isNullAware: false}) { | |
| 478 if (receiver is TypeDeclarationBuilder) { | |
| 479 /// For reasons beyond comprehension, `SomeType?.toString` is the same as | |
| 480 /// `SomeType.toString`, not `(SomeType).toString`. WTAF!?! | |
| 481 // | |
| 482 isNullAware = false; | |
| 483 } | |
| 484 if (receiver is BuilderAccessor) { | |
| 485 return receiver.buildPropertyAccess(this, isNullAware); | |
| 486 } | |
| 487 if (receiver is PrefixBuilder) { | |
| 488 PrefixBuilder prefix = receiver; | |
| 489 return helper.builderToFirstExpression( | |
| 490 prefix.exports[name.name], name.name, offset); | |
| 491 } | |
| 492 if (receiver is KernelClassBuilder) { | |
| 493 Builder builder = receiver.findStaticBuilder(name.name, offset, uri); | |
| 494 if (builder == null) { | |
| 495 // If we find a setter, [builder] is an [AccessErrorBuilder], not null. | |
| 496 return buildThrowNoSuchMethodError(new Arguments.empty(), | |
| 497 isGetter: true); | |
| 498 } | |
| 499 Builder setter; | |
| 500 if (builder.isSetter) { | |
| 501 setter = builder; | |
| 502 } else if (builder.isGetter) { | |
| 503 setter = | |
| 504 receiver.findStaticBuilder(name.name, offset, uri, isSetter: true); | |
| 505 } else if (builder.isField && !builder.isFinal) { | |
| 506 setter = builder; | |
| 507 } | |
| 508 return new StaticAccessor.fromBuilder(helper, builder, offset, setter); | |
| 509 } | |
| 510 return PropertyAccessor.make(helper, offset, helper.toValue(receiver), name, | |
| 511 null, null, isNullAware); | |
| 512 } | |
| 513 | |
| 514 Expression buildNullAwareAssignment(Expression value, DartType type, | |
| 515 {bool voidContext: false}) { | |
| 516 return internalError("Unhandled"); | |
| 517 } | |
| 518 | |
| 519 Expression buildCompoundAssignment(Name binaryOperator, Expression value, | |
| 520 {int offset, bool voidContext: false, Procedure interfaceTarget}) { | |
| 521 return internalError("Unhandled"); | |
| 522 } | |
| 523 | |
| 524 Expression buildPrefixIncrement(Name binaryOperator, | |
| 525 {int offset, bool voidContext: false, Procedure interfaceTarget}) { | |
| 526 return internalError("Unhandled"); | |
| 527 } | |
| 528 | |
| 529 Expression buildPostfixIncrement(Name binaryOperator, | |
| 530 {int offset, bool voidContext: false, Procedure interfaceTarget}) { | |
| 531 return internalError("Unhandled"); | |
| 532 } | |
| 533 | |
| 534 Expression doInvocation(int offset, Arguments arguments) { | |
| 535 return internalError("Unhandled"); | |
| 536 } | |
| 537 | |
| 538 toString() => "IncompletePropertyAccessor($offset, $name)"; | |
| 539 } | |
| 540 | |
| 541 class IndexAccessor extends kernel.IndexAccessor with BuilderAccessor { | |
| 542 final BuilderHelper helper; | |
| 543 | |
| 544 IndexAccessor.internal(this.helper, int offset, Expression receiver, | |
| 545 Expression index, Procedure getter, Procedure setter) | |
| 546 : super.internal(receiver, index, getter, setter, offset); | |
| 547 | |
| 548 String get plainNameForRead => "[]"; | |
| 549 | |
| 550 String get plainNameForWrite => "[]="; | |
| 551 | |
| 552 Expression doInvocation(int offset, Arguments arguments) { | |
| 553 return buildMethodInvocation( | |
| 554 buildSimpleRead(), callName, arguments, offset); | |
| 555 } | |
| 556 | |
| 557 toString() => "IndexAccessor()"; | |
| 558 | |
| 559 static BuilderAccessor make( | |
| 560 BuilderHelper helper, | |
| 561 int offset, | |
| 562 Expression receiver, | |
| 563 Expression index, | |
| 564 Procedure getter, | |
| 565 Procedure setter) { | |
| 566 if (receiver is ThisExpression) { | |
| 567 return new ThisIndexAccessor(helper, offset, index, getter, setter); | |
| 568 } else { | |
| 569 return new IndexAccessor.internal( | |
| 570 helper, offset, receiver, index, getter, setter); | |
| 571 } | |
| 572 } | |
| 573 } | |
| 574 | |
| 575 class PropertyAccessor extends kernel.PropertyAccessor with BuilderAccessor { | |
| 576 final BuilderHelper helper; | |
| 577 | |
| 578 PropertyAccessor.internal(this.helper, int offset, Expression receiver, | |
| 579 Name name, Member getter, Member setter) | |
| 580 : super.internal(receiver, name, getter, setter, offset); | |
| 581 | |
| 582 String get plainNameForRead => name.name; | |
| 583 | |
| 584 bool get isThisPropertyAccessor => receiver is ThisExpression; | |
| 585 | |
| 586 Expression doInvocation(int offset, Arguments arguments) { | |
| 587 return buildMethodInvocation(receiver, name, arguments, offset); | |
| 588 } | |
| 589 | |
| 590 toString() => "PropertyAccessor()"; | |
| 591 | |
| 592 static BuilderAccessor make( | |
| 593 BuilderHelper helper, | |
| 594 int offset, | |
| 595 Expression receiver, | |
| 596 Name name, | |
| 597 Member getter, | |
| 598 Member setter, | |
| 599 bool isNullAware) { | |
| 600 if (receiver is ThisExpression) { | |
| 601 return new ThisPropertyAccessor(helper, offset, name, getter, setter); | |
| 602 } else { | |
| 603 return isNullAware | |
| 604 ? new NullAwarePropertyAccessor( | |
| 605 helper, offset, receiver, name, getter, setter, null) | |
| 606 : new PropertyAccessor.internal( | |
| 607 helper, offset, receiver, name, getter, setter); | |
| 608 } | |
| 609 } | |
| 610 } | |
| 611 | |
| 612 class StaticAccessor extends kernel.StaticAccessor with BuilderAccessor { | |
| 613 final BuilderHelper helper; | |
| 614 | |
| 615 StaticAccessor(this.helper, int offset, Member readTarget, Member writeTarget) | |
| 616 : super(readTarget, writeTarget, offset) { | |
| 617 assert(readTarget != null || writeTarget != null); | |
| 618 } | |
| 619 | |
| 620 factory StaticAccessor.fromBuilder(BuilderHelper helper, Builder builder, | |
| 621 int offset, Builder builderSetter) { | |
| 622 if (builder is AccessErrorBuilder) { | |
| 623 AccessErrorBuilder error = builder; | |
| 624 builder = error.builder; | |
| 625 // We should only see an access error here if we've looked up a setter | |
| 626 // when not explicitly looking for a setter. | |
| 627 assert(builder.isSetter); | |
| 628 } else if (builder.target == null) { | |
| 629 return internalError("Unhandled: ${builder}"); | |
| 630 } | |
| 631 Member getter = builder.target.hasGetter ? builder.target : null; | |
| 632 Member setter = builder.target.hasSetter ? builder.target : null; | |
| 633 if (setter == null) { | |
| 634 if (builderSetter?.target?.hasSetter ?? false) { | |
| 635 setter = builderSetter.target; | |
| 636 } | |
| 637 } | |
| 638 return new StaticAccessor(helper, offset, getter, setter); | |
| 639 } | |
| 640 | |
| 641 String get plainNameForRead => (readTarget ?? writeTarget).name.name; | |
| 642 | |
| 643 Expression doInvocation(int offset, Arguments arguments) { | |
| 644 if (readTarget == null || isFieldOrGetter(readTarget)) { | |
| 645 return buildMethodInvocation(buildSimpleRead(), callName, arguments, | |
| 646 offset + (readTarget?.name?.name?.length ?? 0)); | |
| 647 } else { | |
| 648 return helper.buildStaticInvocation(readTarget, arguments) | |
| 649 ..fileOffset = offset; | |
| 650 } | |
| 651 } | |
| 652 | |
| 653 toString() => "StaticAccessor()"; | |
| 654 } | |
| 655 | |
| 656 class SuperPropertyAccessor extends kernel.SuperPropertyAccessor | |
| 657 with BuilderAccessor { | |
| 658 final BuilderHelper helper; | |
| 659 | |
| 660 SuperPropertyAccessor( | |
| 661 this.helper, int offset, Name name, Member getter, Member setter) | |
| 662 : super(name, getter, setter, offset); | |
| 663 | |
| 664 String get plainNameForRead => name.name; | |
| 665 | |
| 666 Expression doInvocation(int offset, Arguments arguments) { | |
| 667 if (getter == null || isFieldOrGetter(getter)) { | |
| 668 return buildMethodInvocation( | |
| 669 buildSimpleRead(), callName, arguments, offset); | |
| 670 } else { | |
| 671 return new DirectMethodInvocation(new ThisExpression(), getter, arguments) | |
| 672 ..fileOffset = offset; | |
| 673 } | |
| 674 } | |
| 675 | |
| 676 toString() => "SuperPropertyAccessor()"; | |
| 677 } | |
| 678 | |
| 679 class ThisIndexAccessor extends kernel.ThisIndexAccessor with BuilderAccessor { | |
| 680 final BuilderHelper helper; | |
| 681 | |
| 682 ThisIndexAccessor(this.helper, int offset, Expression index, Procedure getter, | |
| 683 Procedure setter) | |
| 684 : super(index, getter, setter, offset); | |
| 685 | |
| 686 String get plainNameForRead => "[]"; | |
| 687 | |
| 688 String get plainNameForWrite => "[]="; | |
| 689 | |
| 690 Expression doInvocation(int offset, Arguments arguments) { | |
| 691 return buildMethodInvocation( | |
| 692 buildSimpleRead(), callName, arguments, offset); | |
| 693 } | |
| 694 | |
| 695 toString() => "ThisIndexAccessor()"; | |
| 696 } | |
| 697 | |
| 698 class SuperIndexAccessor extends kernel.SuperIndexAccessor | |
| 699 with BuilderAccessor { | |
| 700 final BuilderHelper helper; | |
| 701 | |
| 702 SuperIndexAccessor( | |
| 703 this.helper, int offset, Expression index, Member getter, Member setter) | |
| 704 : super(index, getter, setter, offset); | |
| 705 | |
| 706 String get plainNameForRead => "[]"; | |
| 707 | |
| 708 String get plainNameForWrite => "[]="; | |
| 709 | |
| 710 Expression doInvocation(int offset, Arguments arguments) { | |
| 711 return buildMethodInvocation( | |
| 712 buildSimpleRead(), callName, arguments, offset); | |
| 713 } | |
| 714 | |
| 715 toString() => "SuperIndexAccessor()"; | |
| 716 } | |
| 717 | |
| 718 class ThisPropertyAccessor extends kernel.ThisPropertyAccessor | |
| 719 with BuilderAccessor { | |
| 720 final BuilderHelper helper; | |
| 721 | |
| 722 ThisPropertyAccessor( | |
| 723 this.helper, int offset, Name name, Member getter, Member setter) | |
| 724 : super(name, getter, setter, offset); | |
| 725 | |
| 726 String get plainNameForRead => name.name; | |
| 727 | |
| 728 bool get isThisPropertyAccessor => true; | |
| 729 | |
| 730 Expression doInvocation(int offset, Arguments arguments) { | |
| 731 Member interfaceTarget = getter; | |
| 732 if (interfaceTarget is Field) { | |
| 733 // TODO(ahe): In strong mode we should probably rewrite this to | |
| 734 // `this.name.call(arguments)`. | |
| 735 interfaceTarget = null; | |
| 736 } | |
| 737 return buildMethodInvocation(new ThisExpression(), name, arguments, offset); | |
| 738 } | |
| 739 | |
| 740 toString() => "ThisPropertyAccessor()"; | |
| 741 } | |
| 742 | |
| 743 class NullAwarePropertyAccessor extends kernel.NullAwarePropertyAccessor | |
| 744 with BuilderAccessor { | |
| 745 final BuilderHelper helper; | |
| 746 | |
| 747 NullAwarePropertyAccessor(this.helper, int offset, Expression receiver, | |
| 748 Name name, Member getter, Member setter, DartType type) | |
| 749 : super(receiver, name, getter, setter, type, offset); | |
| 750 | |
| 751 String get plainNameForRead => name.name; | |
| 752 | |
| 753 Expression doInvocation(int offset, Arguments arguments) { | |
| 754 return internalError("Not implemented yet."); | |
| 755 } | |
| 756 | |
| 757 toString() => "NullAwarePropertyAccessor()"; | |
| 758 } | |
| 759 | |
| 760 class VariableAccessor extends kernel.VariableAccessor with BuilderAccessor { | |
| 761 final BuilderHelper helper; | |
| 762 | |
| 763 VariableAccessor(this.helper, int offset, VariableDeclaration variable, | |
| 764 [DartType promotedType]) | |
| 765 : super(variable, promotedType, offset); | |
| 766 | |
| 767 String get plainNameForRead => variable.name; | |
| 768 | |
| 769 Expression doInvocation(int offset, Arguments arguments) { | |
| 770 // Normally the offset is at the start of the token, but in this case, | |
| 771 // because we insert a '.call', we want it at the end instead. | |
| 772 return buildMethodInvocation(buildSimpleRead(), callName, arguments, | |
| 773 offset + (variable.name?.length ?? 0)); | |
| 774 } | |
| 775 | |
| 776 toString() => "VariableAccessor()"; | |
| 777 } | |
| 778 | |
| 779 bool isFieldOrGetter(Member member) { | |
| 780 return member is Field || (member is Procedure && member.isGetter); | |
| 781 } | |
| 782 | |
| 783 Expression buildMethodInvocation( | |
| 784 Expression receiver, Name name, Arguments arguments, int offset, | |
| 785 {bool isNullAware: false}) { | |
| 786 if (isNullAware) { | |
| 787 VariableDeclaration variable = new VariableDeclaration.forValue(receiver); | |
| 788 return makeLet( | |
| 789 variable, | |
| 790 new ConditionalExpression( | |
| 791 buildIsNull(new VariableGet(variable)), | |
| 792 new NullLiteral(), | |
| 793 new MethodInvocation(new VariableGet(variable), name, arguments) | |
| 794 ..fileOffset = offset, | |
| 795 const DynamicType())); | |
| 796 } else { | |
| 797 return new MethodInvocation(receiver, name, arguments)..fileOffset = offset; | |
| 798 } | |
| 799 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2777893002:
Rename BuilderAccessor to FastaAccessor. (Closed)
