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| 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a | 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. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 | 4 |
| 5 // VM-specific implementation of the dart:mirrors library. | 5 // VM-specific implementation of the dart:mirrors library. |
| 6 | 6 |
| 7 import "dart:collection"; | 7 import "dart:collection"; |
| 8 | 8 |
| 9 final emptyList = new UnmodifiableListView([]); | 9 final emptyList = new UnmodifiableListView([]); |
| 10 final emptyMap = new _UnmodifiableMapView({}); | 10 final emptyMap = new _UnmodifiableMapView({}); |
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| 241 | 241 |
| 242 int get hashCode { | 242 int get hashCode { |
| 243 // Avoid hash collisions with the reflectee. This constant is in Smi range | 243 // Avoid hash collisions with the reflectee. This constant is in Smi range |
| 244 // and happens to be the inner padding from RFC 2104. | 244 // and happens to be the inner padding from RFC 2104. |
| 245 return identityHashCode(_reflectee) ^ 0x36363636; | 245 return identityHashCode(_reflectee) ^ 0x36363636; |
| 246 } | 246 } |
| 247 | 247 |
| 248 Function operator [](Symbol selector) { | 248 Function operator [](Symbol selector) { |
| 249 bool found = false; | 249 bool found = false; |
| 250 for (ClassMirror c = type; c != null; c = c.superclass) { | 250 for (ClassMirror c = type; c != null; c = c.superclass) { |
| 251 var target = c.methods[selector]; | 251 var target = c._methods[selector]; |
| 252 if (target != null && !target.isStatic && target.isRegularMethod) { | 252 if (target != null && !target.isStatic && target.isRegularMethod) { |
| 253 found = true; | 253 found = true; |
| 254 break; | 254 break; |
| 255 } | 255 } |
| 256 } | 256 } |
| 257 if (!found) { | 257 if (!found) { |
| 258 throw new ArgumentError( | 258 throw new ArgumentError( |
| 259 "${MirrorSystem.getName(type.simpleName)} has no instance method " | 259 "${MirrorSystem.getName(type.simpleName)} has no instance method " |
| 260 "${MirrorSystem.getName(selector)}"); | 260 "${MirrorSystem.getName(selector)}"); |
| 261 } | 261 } |
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| 330 arguments[argumentIndex++] = value; | 330 arguments[argumentIndex++] = value; |
| 331 names[nameIndex++] = _n(name); | 331 names[nameIndex++] = _n(name); |
| 332 }); | 332 }); |
| 333 } | 333 } |
| 334 | 334 |
| 335 // It is tempting to implement this in terms of Function.apply, but then | 335 // It is tempting to implement this in terms of Function.apply, but then |
| 336 // lazy compilation errors would be fatal. | 336 // lazy compilation errors would be fatal. |
| 337 return reflect(_apply(arguments, names)); | 337 return reflect(_apply(arguments, names)); |
| 338 } | 338 } |
| 339 | 339 |
| 340 Future<InstanceMirror> applyAsync(List positionalArguments, | |
| 341 [Map<Symbol, dynamic> namedArguments]) { | |
| 342 return new Future(() { | |
| 343 return this.apply(_unwrapAsyncPositionals(positionalArguments), | |
| 344 _unwrapAsyncNamed(namedArguments)); | |
| 345 }); | |
| 346 } | |
| 347 | |
| 348 InstanceMirror findInContext(Symbol name, {ifAbsent: null}) { | 340 InstanceMirror findInContext(Symbol name, {ifAbsent: null}) { |
| 349 List<String> parts = _n(name).split(".").toList(growable: false); | 341 List<String> parts = _n(name).split(".").toList(growable: false); |
| 350 if (parts.length > 3) { | 342 if (parts.length > 3) { |
| 351 throw new ArgumentError("Invalid symbol: ${name}"); | 343 throw new ArgumentError("Invalid symbol: ${name}"); |
| 352 } | 344 } |
| 353 List tuple = _computeFindInContext(_reflectee, parts); | 345 List tuple = _computeFindInContext(_reflectee, parts); |
| 354 if (tuple.length == 0) { | 346 if (tuple.length == 0) { |
| 355 throw new UnsupportedError( | 347 throw new UnsupportedError( |
| 356 "ClosureMirror.findInContext not yet supported"); | 348 "ClosureMirror.findInContext not yet supported"); |
| 357 } | 349 } |
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| 497 } | 489 } |
| 498 } | 490 } |
| 499 } | 491 } |
| 500 return _mixin; | 492 return _mixin; |
| 501 } | 493 } |
| 502 | 494 |
| 503 Map<Symbol, DeclarationMirror> _declarations; | 495 Map<Symbol, DeclarationMirror> _declarations; |
| 504 Map<Symbol, DeclarationMirror> get declarations { | 496 Map<Symbol, DeclarationMirror> get declarations { |
| 505 if (_declarations != null) return _declarations; | 497 if (_declarations != null) return _declarations; |
| 506 var decls = new Map<Symbol, DeclarationMirror>(); | 498 var decls = new Map<Symbol, DeclarationMirror>(); |
| 507 decls.addAll(members); | 499 decls.addAll(_members); |
| 508 decls.addAll(constructors); | 500 decls.addAll(_constructors); |
| 509 typeVariables.forEach((tv) => decls[tv.simpleName] = tv); | 501 typeVariables.forEach((tv) => decls[tv.simpleName] = tv); |
| 510 return _declarations = | 502 return _declarations = |
| 511 new _UnmodifiableMapView<Symbol, DeclarationMirror>(decls); | 503 new _UnmodifiableMapView<Symbol, DeclarationMirror>(decls); |
| 512 } | 504 } |
| 513 | 505 |
| 514 Map<Symbol, Mirror> _members; | 506 Map<Symbol, Mirror> _cachedMembers; |
| 515 Map<Symbol, Mirror> get members { | 507 Map<Symbol, Mirror> get _members { |
| 516 if (_members == null) { | 508 if (_cachedMembers == null) { |
| 517 var whoseMembers = _isMixinAlias ? _trueSuperclass : this; | 509 var whoseMembers = _isMixinAlias ? _trueSuperclass : this; |
| 518 _members = _makeMemberMap(mixin._computeMembers(whoseMembers._reflectee)); | 510 _cachedMembers = _makeMemberMap(mixin._computeMembers(whoseMembers._reflec
tee)); |
| 519 } | 511 } |
| 520 return _members; | 512 return _cachedMembers; |
| 521 } | 513 } |
| 522 | 514 |
| 523 Map<Symbol, MethodMirror> _methods; | 515 Map<Symbol, MethodMirror> _cachedMethods; |
| 524 Map<Symbol, MethodMirror> get methods { | 516 Map<Symbol, MethodMirror> get _methods { |
| 525 if (_methods == null) { | 517 if (_cachedMethods == null) { |
| 526 _methods = _filterMap( | 518 _cachedMethods = _filterMap( |
| 527 members, | 519 _members, |
| 528 (key, value) => (value is MethodMirror && value.isRegularMethod)); | 520 (key, value) => (value is MethodMirror && value.isRegularMethod)); |
| 529 } | 521 } |
| 530 return _methods; | 522 return _cachedMethods; |
| 531 } | 523 } |
| 532 | 524 |
| 533 Map<Symbol, MethodMirror> _getters; | 525 Map<Symbol, MethodMirror> _cachedConstructors; |
| 534 Map<Symbol, MethodMirror> get getters { | 526 Map<Symbol, MethodMirror> get _constructors { |
| 535 if (_getters == null) { | 527 if (_cachedConstructors == null) { |
| 536 _getters = _filterMap( | |
| 537 members, | |
| 538 (key, value) => (value is MethodMirror && value.isGetter)); | |
| 539 } | |
| 540 return _getters; | |
| 541 } | |
| 542 | |
| 543 Map<Symbol, MethodMirror> _setters; | |
| 544 Map<Symbol, MethodMirror> get setters { | |
| 545 if (_setters == null) { | |
| 546 _setters = _filterMap( | |
| 547 members, | |
| 548 (key, value) => (value is MethodMirror && value.isSetter)); | |
| 549 } | |
| 550 return _setters; | |
| 551 } | |
| 552 | |
| 553 Map<Symbol, VariableMirror> _variables; | |
| 554 Map<Symbol, VariableMirror> get variables { | |
| 555 if (_variables == null) { | |
| 556 _variables = _filterMap( | |
| 557 members, | |
| 558 (key, value) => (value is VariableMirror)); | |
| 559 } | |
| 560 return _variables; | |
| 561 } | |
| 562 | |
| 563 Map<Symbol, MethodMirror> _constructors; | |
| 564 Map<Symbol, MethodMirror> get constructors { | |
| 565 if (_constructors == null) { | |
| 566 var constructorsList = _computeConstructors(_reflectee); | 528 var constructorsList = _computeConstructors(_reflectee); |
| 567 var stringName = _n(simpleName); | 529 var stringName = _n(simpleName); |
| 568 constructorsList.forEach((c) => c._patchConstructorName(stringName)); | 530 constructorsList.forEach((c) => c._patchConstructorName(stringName)); |
| 569 _constructors = _makeMemberMap(constructorsList); | 531 _cachedConstructors = _makeMemberMap(constructorsList); |
| 570 } | 532 } |
| 571 return _constructors; | 533 return _cachedConstructors; |
| 572 } | 534 } |
| 573 | 535 |
| 574 bool get _isAnonymousMixinApplication { | 536 bool get _isAnonymousMixinApplication { |
| 575 if (_isMixinAlias) return false; // Named mixin application. | 537 if (_isMixinAlias) return false; // Named mixin application. |
| 576 if (mixin == this) return false; // Not a mixin application. | 538 if (mixin == this) return false; // Not a mixin application. |
| 577 return true; | 539 return true; |
| 578 } | 540 } |
| 579 | 541 |
| 580 List<TypeVariableMirror> _typeVariables = null; | 542 List<TypeVariableMirror> _typeVariables = null; |
| 581 List<TypeVariableMirror> get typeVariables { | 543 List<TypeVariableMirror> get typeVariables { |
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| 615 if (isOriginalDeclaration) { | 577 if (isOriginalDeclaration) { |
| 616 return this; | 578 return this; |
| 617 } else { | 579 } else { |
| 618 return reflectClass(_reflectedType); | 580 return reflectClass(_reflectedType); |
| 619 } | 581 } |
| 620 } | 582 } |
| 621 | 583 |
| 622 String toString() => "ClassMirror on '${MirrorSystem.getName(simpleName)}'"; | 584 String toString() => "ClassMirror on '${MirrorSystem.getName(simpleName)}'"; |
| 623 | 585 |
| 624 Function operator [](Symbol selector) { | 586 Function operator [](Symbol selector) { |
| 625 var target = methods[selector]; | 587 var target = _methods[selector]; |
| 626 if (target == null || !target.isStatic || !target.isRegularMethod) { | 588 if (target == null || !target.isStatic || !target.isRegularMethod) { |
| 627 throw new ArgumentError( | 589 throw new ArgumentError( |
| 628 "${MirrorSystem.getName(simpleName)} has no static method " | 590 "${MirrorSystem.getName(simpleName)} has no static method " |
| 629 "${MirrorSystem.getName(selector)}"); | 591 "${MirrorSystem.getName(selector)}"); |
| 630 } | 592 } |
| 631 return new _InvocationTrampoline(this, selector); | 593 return new _InvocationTrampoline(this, selector); |
| 632 } | 594 } |
| 633 | 595 |
| 634 InstanceMirror newInstance(Symbol constructorName, | 596 InstanceMirror newInstance(Symbol constructorName, |
| 635 List positionalArguments, | 597 List positionalArguments, |
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| 651 }); | 613 }); |
| 652 } | 614 } |
| 653 | 615 |
| 654 return reflect(_invokeConstructor(_reflectee, | 616 return reflect(_invokeConstructor(_reflectee, |
| 655 _reflectedType, | 617 _reflectedType, |
| 656 _n(constructorName), | 618 _n(constructorName), |
| 657 arguments, | 619 arguments, |
| 658 names)); | 620 names)); |
| 659 } | 621 } |
| 660 | 622 |
| 661 Future<InstanceMirror> newInstanceAsync(Symbol constructorName, | |
| 662 List positionalArguments, | |
| 663 [Map<Symbol, dynamic> namedArguments])
{ | |
| 664 return new Future(() { | |
| 665 return this.newInstance(constructorName, | |
| 666 _unwrapAsyncPositionals(positionalArguments), | |
| 667 _unwrapAsyncNamed(namedArguments)); | |
| 668 }); | |
| 669 } | |
| 670 | |
| 671 List<InstanceMirror> get metadata { | 623 List<InstanceMirror> get metadata { |
| 672 // Get the metadata objects, convert them into InstanceMirrors using | 624 // Get the metadata objects, convert them into InstanceMirrors using |
| 673 // reflect() and then make them into a Dart list. | 625 // reflect() and then make them into a Dart list. |
| 674 return new UnmodifiableListView(_metadata(_reflectee).map(reflect)); | 626 return new UnmodifiableListView(_metadata(_reflectee).map(reflect)); |
| 675 } | 627 } |
| 676 | 628 |
| 677 bool operator ==(other) { | 629 bool operator ==(other) { |
| 678 return this.runtimeType == other.runtimeType && | 630 return this.runtimeType == other.runtimeType && |
| 679 this._reflectee == other._reflectee && | 631 this._reflectee == other._reflectee && |
| 680 this._reflectedType == other._reflectedType && | 632 this._reflectedType == other._reflectedType && |
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| 989 Type get _instantiator => null; | 941 Type get _instantiator => null; |
| 990 | 942 |
| 991 SourceLocation get location { | 943 SourceLocation get location { |
| 992 throw new UnimplementedError('LibraryMirror.location is not implemented'); | 944 throw new UnimplementedError('LibraryMirror.location is not implemented'); |
| 993 } | 945 } |
| 994 | 946 |
| 995 Map<Symbol, DeclarationMirror> _declarations; | 947 Map<Symbol, DeclarationMirror> _declarations; |
| 996 Map<Symbol, DeclarationMirror> get declarations { | 948 Map<Symbol, DeclarationMirror> get declarations { |
| 997 if (_declarations != null) return _declarations; | 949 if (_declarations != null) return _declarations; |
| 998 return _declarations = | 950 return _declarations = |
| 999 new _UnmodifiableMapView<Symbol, DeclarationMirror>(members); | 951 new _UnmodifiableMapView<Symbol, DeclarationMirror>(_members); |
| 1000 } | 952 } |
| 1001 | 953 |
| 1002 Map<Symbol, Mirror> _members; | 954 Map<Symbol, Mirror> _cachedMembers; |
| 1003 Map<Symbol, Mirror> get members { | 955 Map<Symbol, Mirror> get _members { |
| 1004 if (_members == null) { | 956 if (_cachedMembers == null) { |
| 1005 _members = _makeMemberMap(_computeMembers(_reflectee)); | 957 _cachedMembers = _makeMemberMap(_computeMembers(_reflectee)); |
| 1006 } | 958 } |
| 1007 return _members; | 959 return _cachedMembers; |
| 1008 } | 960 } |
| 1009 | 961 |
| 1010 Map<Symbol, ClassMirror> _types; | 962 Map<Symbol, MethodMirror> _cachedFunctions; |
| 1011 Map<Symbol, TypeMirror> get types { | 963 Map<Symbol, MethodMirror> get _functions { |
| 1012 if (_types == null) { | 964 if (_cachedFunctions == null) { |
| 1013 _types = _filterMap(members, (key, value) => (value is TypeMirror)); | 965 _cachedFunctions = _filterMap(_members, (key, value) => (value is MethodMi
rror)); |
| 1014 } | 966 } |
| 1015 return _types; | 967 return _cachedFunctions; |
| 1016 } | |
| 1017 | |
| 1018 Map<Symbol, ClassMirror> _classes; | |
| 1019 Map<Symbol, ClassMirror> get classes { | |
| 1020 if (_classes == null) { | |
| 1021 _classes = _filterMap(members, (key, value) => (value is ClassMirror)); | |
| 1022 } | |
| 1023 return _classes; | |
| 1024 } | |
| 1025 | |
| 1026 Map<Symbol, MethodMirror> _functions; | |
| 1027 Map<Symbol, MethodMirror> get functions { | |
| 1028 if (_functions == null) { | |
| 1029 _functions = _filterMap(members, (key, value) => (value is MethodMirror)); | |
| 1030 } | |
| 1031 return _functions; | |
| 1032 } | |
| 1033 | |
| 1034 Map<Symbol, MethodMirror> _getters; | |
| 1035 Map<Symbol, MethodMirror> get getters { | |
| 1036 if (_getters == null) { | |
| 1037 _getters = _filterMap(functions, (key, value) => (value.isGetter)); | |
| 1038 } | |
| 1039 return _getters; | |
| 1040 } | |
| 1041 | |
| 1042 Map<Symbol, MethodMirror> _setters; | |
| 1043 Map<Symbol, MethodMirror> get setters { | |
| 1044 if (_setters == null) { | |
| 1045 _setters = _filterMap(functions, (key, value) => (value.isSetter)); | |
| 1046 } | |
| 1047 return _setters; | |
| 1048 } | |
| 1049 | |
| 1050 Map<Symbol, VariableMirror> _variables; | |
| 1051 Map<Symbol, VariableMirror> get variables { | |
| 1052 if (_variables == null) { | |
| 1053 _variables = _filterMap(members, | |
| 1054 (key, value) => (value is VariableMirror)); | |
| 1055 } | |
| 1056 return _variables; | |
| 1057 } | 968 } |
| 1058 | 969 |
| 1059 List<InstanceMirror> get metadata { | 970 List<InstanceMirror> get metadata { |
| 1060 // Get the metadata objects, convert them into InstanceMirrors using | 971 // Get the metadata objects, convert them into InstanceMirrors using |
| 1061 // reflect() and then make them into a Dart list. | 972 // reflect() and then make them into a Dart list. |
| 1062 return new UnmodifiableListView(_metadata(_reflectee).map(reflect)); | 973 return new UnmodifiableListView(_metadata(_reflectee).map(reflect)); |
| 1063 } | 974 } |
| 1064 | 975 |
| 1065 bool operator ==(other) { | 976 bool operator ==(other) { |
| 1066 return this.runtimeType == other.runtimeType && | 977 return this.runtimeType == other.runtimeType && |
| 1067 this._reflectee == other._reflectee; | 978 this._reflectee == other._reflectee; |
| 1068 } | 979 } |
| 1069 | 980 |
| 1070 int get hashCode => simpleName.hashCode; | 981 int get hashCode => simpleName.hashCode; |
| 1071 | 982 |
| 1072 String toString() => "LibraryMirror on '${_n(simpleName)}'"; | 983 String toString() => "LibraryMirror on '${_n(simpleName)}'"; |
| 1073 | 984 |
| 1074 Function operator [](Symbol selector) { | 985 Function operator [](Symbol selector) { |
| 1075 var target = functions[selector]; | 986 var target = _functions[selector]; |
| 1076 if (target == null || !target.isRegularMethod) { | 987 if (target == null || !target.isRegularMethod) { |
| 1077 throw new ArgumentError( | 988 throw new ArgumentError( |
| 1078 "${MirrorSystem.getName(simpleName)} has no top-level method " | 989 "${MirrorSystem.getName(simpleName)} has no top-level method " |
| 1079 "${MirrorSystem.getName(selector)}"); | 990 "${MirrorSystem.getName(selector)}"); |
| 1080 } | 991 } |
| 1081 return new _InvocationTrampoline(this, selector); | 992 return new _InvocationTrampoline(this, selector); |
| 1082 } | 993 } |
| 1083 | 994 |
| 1084 _invoke(reflectee, memberName, arguments, argumentNames) | 995 _invoke(reflectee, memberName, arguments, argumentNames) |
| 1085 native 'LibraryMirror_invoke'; | 996 native 'LibraryMirror_invoke'; |
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| 1425 if (typeMirror == null) { | 1336 if (typeMirror == null) { |
| 1426 typeMirror = makeLocalTypeMirror(key); | 1337 typeMirror = makeLocalTypeMirror(key); |
| 1427 _instanitationCache[key] = typeMirror; | 1338 _instanitationCache[key] = typeMirror; |
| 1428 if (typeMirror is ClassMirror && !typeMirror._isGeneric) { | 1339 if (typeMirror is ClassMirror && !typeMirror._isGeneric) { |
| 1429 _declarationCache[key] = typeMirror; | 1340 _declarationCache[key] = typeMirror; |
| 1430 } | 1341 } |
| 1431 } | 1342 } |
| 1432 return typeMirror; | 1343 return typeMirror; |
| 1433 } | 1344 } |
| 1434 } | 1345 } |
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