| // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| // @dart = 2.9 |
| |
| library test.relation_subclass; |
| |
| import "dart:mirrors"; |
| |
| import "package:expect/expect.dart"; |
| |
| class Superclass {} |
| |
| class Subclass1 extends Superclass {} |
| |
| class Subclass2 extends Superclass {} |
| |
| typedef bool NumberPredicate(num x); |
| typedef bool IntegerPredicate(int x); |
| typedef bool DoublePredicate(double x); |
| |
| typedef num NumberGenerator(); |
| typedef int IntegerGenerator(); |
| typedef double DoubleGenerator(); |
| |
| test(MirrorSystem mirrors) { |
| LibraryMirror coreLibrary = mirrors.findLibrary(#dart.core); |
| LibraryMirror thisLibrary = mirrors.findLibrary(#test.relation_subclass); |
| |
| ClassMirror Super = thisLibrary.declarations[#Superclass] as ClassMirror; |
| ClassMirror Sub1 = thisLibrary.declarations[#Subclass1] as ClassMirror; |
| ClassMirror Sub2 = thisLibrary.declarations[#Subclass2] as ClassMirror; |
| ClassMirror Obj = coreLibrary.declarations[#Object] as ClassMirror; |
| ClassMirror Nul = coreLibrary.declarations[#Null] as ClassMirror; |
| |
| Expect.isTrue(Obj.isSubclassOf(Obj)); |
| Expect.isTrue(Super.isSubclassOf(Super)); |
| Expect.isTrue(Sub1.isSubclassOf(Sub1)); |
| Expect.isTrue(Sub2.isSubclassOf(Sub2)); |
| Expect.isTrue(Nul.isSubclassOf(Nul)); |
| |
| Expect.isTrue(Sub1.isSubclassOf(Super)); |
| Expect.isFalse(Super.isSubclassOf(Sub1)); |
| |
| Expect.isTrue(Sub2.isSubclassOf(Super)); |
| Expect.isFalse(Super.isSubclassOf(Sub2)); |
| |
| Expect.isFalse(Sub2.isSubclassOf(Sub1)); |
| Expect.isFalse(Sub1.isSubclassOf(Sub2)); |
| |
| Expect.isTrue(Sub1.isSubclassOf(Obj)); |
| Expect.isFalse(Obj.isSubclassOf(Sub1)); |
| |
| Expect.isTrue(Sub2.isSubclassOf(Obj)); |
| Expect.isFalse(Obj.isSubclassOf(Sub2)); |
| |
| Expect.isTrue(Super.isSubclassOf(Obj)); |
| Expect.isFalse(Obj.isSubclassOf(Super)); |
| |
| Expect.isTrue(Nul.isSubclassOf(Obj)); |
| Expect.isFalse(Obj.isSubclassOf(Nul)); |
| Expect.isFalse(Nul.isSubclassOf(Super)); |
| Expect.isFalse(Super.isSubclassOf(Nul)); |
| |
| ClassMirror Func = coreLibrary.declarations[#Function] as ClassMirror; |
| Expect.isTrue(Func.isSubclassOf(Obj)); |
| Expect.isFalse(Obj.isSubclassOf(Func)); |
| |
| // Function typedef. |
| dynamic NumPred = thisLibrary.declarations[#NumberPredicate]; |
| dynamic IntPred = thisLibrary.declarations[#IntegerPredicate]; |
| dynamic DubPred = thisLibrary.declarations[#DoublePredicate]; |
| dynamic NumGen = thisLibrary.declarations[#NumberGenerator]; |
| dynamic IntGen = thisLibrary.declarations[#IntegerGenerator]; |
| dynamic DubGen = thisLibrary.declarations[#DoubleGenerator]; |
| |
| isArgumentOrTypeError(e) => e is ArgumentError || e is TypeError; |
| Expect.throws(() => Func.isSubclassOf(NumPred), isArgumentOrTypeError); |
| Expect.throws(() => Func.isSubclassOf(IntPred), isArgumentOrTypeError); |
| Expect.throws(() => Func.isSubclassOf(DubPred), isArgumentOrTypeError); |
| Expect.throws(() => Func.isSubclassOf(NumGen), isArgumentOrTypeError); |
| Expect.throws(() => Func.isSubclassOf(IntGen), isArgumentOrTypeError); |
| Expect.throws(() => Func.isSubclassOf(DubGen), isArgumentOrTypeError); |
| |
| Expect.throwsNoSuchMethodError(() => NumPred.isSubclassOf(Func)); |
| Expect.throwsNoSuchMethodError(() => IntPred.isSubclassOf(Func)); |
| Expect.throwsNoSuchMethodError(() => DubPred.isSubclassOf(Func)); |
| Expect.throwsNoSuchMethodError(() => NumGen.isSubclassOf(Func)); |
| Expect.throwsNoSuchMethodError(() => IntGen.isSubclassOf(Func)); |
| Expect.throwsNoSuchMethodError(() => DubGen.isSubclassOf(Func)); |
| |
| // Function type. |
| TypeMirror NumPredRef = (NumPred as TypedefMirror).referent; |
| TypeMirror IntPredRef = (IntPred as TypedefMirror).referent; |
| TypeMirror DubPredRef = (DubPred as TypedefMirror).referent; |
| TypeMirror NumGenRef = (NumGen as TypedefMirror).referent; |
| TypeMirror IntGenRef = (IntGen as TypedefMirror).referent; |
| TypeMirror DubGenRef = (DubGen as TypedefMirror).referent; |
| |
| Expect.isFalse(Func.isSubclassOf(NumPredRef)); |
| Expect.isFalse(Func.isSubclassOf(IntPredRef)); |
| Expect.isFalse(Func.isSubclassOf(DubPredRef)); |
| Expect.isFalse(Func.isSubclassOf(NumGenRef)); |
| Expect.isFalse(Func.isSubclassOf(IntGenRef)); |
| Expect.isFalse(Func.isSubclassOf(DubGenRef)); |
| |
| // The spec doesn't require these to be either value, only that they implement |
| // Function. |
| // NumPredRef.isSubclassOf(Func); |
| // IntPredRef.isSubclassOf(Func); |
| // DubPredRef.isSubclassOf(Func); |
| // NumGenRef.isSubclassOf(Func); |
| // IntGenRef.isSubclassOf(Func); |
| // DubGenRef.isSubclassOf(Func); |
| } |
| |
| main() { |
| test(currentMirrorSystem()); |
| } |