| // 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_subtype; |
| |
| 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(); |
| |
| class A<T> {} |
| |
| class B<T> extends A<T> {} |
| |
| class C<T extends num> {} |
| |
| test(MirrorSystem mirrors) { |
| LibraryMirror coreLibrary = mirrors.findLibrary(#dart.core); |
| LibraryMirror thisLibrary = mirrors.findLibrary(#test.relation_subtype); |
| |
| // Classes. |
| final Super = thisLibrary.declarations[#Superclass] as ClassMirror; |
| final Sub1 = thisLibrary.declarations[#Subclass1] as ClassMirror; |
| final Sub2 = thisLibrary.declarations[#Subclass2] as ClassMirror; |
| final Obj = coreLibrary.declarations[#Object] as ClassMirror; |
| final Nul = coreLibrary.declarations[#Null] as ClassMirror; |
| |
| Expect.isTrue(Obj.isSubtypeOf(Obj)); |
| Expect.isTrue(Super.isSubtypeOf(Super)); |
| Expect.isTrue(Sub1.isSubtypeOf(Sub1)); |
| Expect.isTrue(Sub2.isSubtypeOf(Sub2)); |
| Expect.isTrue(Nul.isSubtypeOf(Nul)); |
| |
| Expect.isTrue(Sub1.isSubtypeOf(Super)); |
| Expect.isFalse(Super.isSubtypeOf(Sub1)); |
| |
| Expect.isTrue(Sub2.isSubtypeOf(Super)); |
| Expect.isFalse(Super.isSubtypeOf(Sub2)); |
| |
| Expect.isFalse(Sub2.isSubtypeOf(Sub1)); |
| Expect.isFalse(Sub1.isSubtypeOf(Sub2)); |
| |
| Expect.isTrue(Sub1.isSubtypeOf(Obj)); |
| Expect.isFalse(Obj.isSubtypeOf(Sub1)); |
| |
| Expect.isTrue(Sub2.isSubtypeOf(Obj)); |
| Expect.isFalse(Obj.isSubtypeOf(Sub2)); |
| |
| Expect.isTrue(Super.isSubtypeOf(Obj)); |
| Expect.isFalse(Obj.isSubtypeOf(Super)); |
| |
| Expect.isTrue(Nul.isSubtypeOf(Obj)); |
| Expect.isFalse(Obj.isSubtypeOf(Nul)); |
| Expect.isTrue(Nul.isSubtypeOf(Super)); // Null type is bottom type. |
| Expect.isFalse(Super.isSubtypeOf(Nul)); |
| |
| // Function typedef - argument type. |
| TypeMirror Func = coreLibrary.declarations[#Function] as TypeMirror; |
| TypedefMirror NumPred = |
| thisLibrary.declarations[#NumberPredicate] as TypedefMirror; |
| TypedefMirror IntPred = |
| thisLibrary.declarations[#IntegerPredicate] as TypedefMirror; |
| TypedefMirror DubPred = |
| thisLibrary.declarations[#DoublePredicate] as TypedefMirror; |
| |
| Expect.isTrue(Func.isSubtypeOf(Func)); |
| Expect.isTrue(NumPred.isSubtypeOf(NumPred)); |
| Expect.isTrue(IntPred.isSubtypeOf(IntPred)); |
| Expect.isTrue(DubPred.isSubtypeOf(DubPred)); |
| |
| Expect.isTrue(NumPred.isSubtypeOf(Func)); |
| Expect.isTrue(NumPred.isSubtypeOf(IntPred)); |
| Expect.isTrue(NumPred.isSubtypeOf(DubPred)); |
| |
| Expect.isTrue(IntPred.isSubtypeOf(Func)); |
| Expect.isTrue(IntPred.isSubtypeOf(NumPred)); |
| Expect.isFalse(IntPred.isSubtypeOf(DubPred)); |
| |
| Expect.isTrue(DubPred.isSubtypeOf(Func)); |
| Expect.isTrue(DubPred.isSubtypeOf(NumPred)); |
| Expect.isFalse(DubPred.isSubtypeOf(IntPred)); |
| |
| Expect.isTrue(Func.isSubtypeOf(Obj)); |
| Expect.isTrue(NumPred.isSubtypeOf(Obj)); |
| Expect.isTrue(IntPred.isSubtypeOf(Obj)); |
| Expect.isTrue(DubPred.isSubtypeOf(Obj)); |
| |
| // Function typedef - return type. |
| TypedefMirror NumGen = |
| thisLibrary.declarations[#NumberGenerator] as TypedefMirror; |
| TypedefMirror IntGen = |
| thisLibrary.declarations[#IntegerGenerator] as TypedefMirror; |
| TypedefMirror DubGen = |
| thisLibrary.declarations[#DoubleGenerator] as TypedefMirror; |
| |
| Expect.isTrue(NumGen.isSubtypeOf(NumGen)); |
| Expect.isTrue(IntGen.isSubtypeOf(IntGen)); |
| Expect.isTrue(DubGen.isSubtypeOf(DubGen)); |
| |
| Expect.isTrue(NumGen.isSubtypeOf(Func)); |
| Expect.isTrue(NumGen.isSubtypeOf(IntGen)); |
| Expect.isTrue(NumGen.isSubtypeOf(DubGen)); |
| |
| Expect.isTrue(IntGen.isSubtypeOf(Func)); |
| Expect.isTrue(IntGen.isSubtypeOf(NumGen)); |
| Expect.isFalse(IntGen.isSubtypeOf(DubGen)); |
| |
| Expect.isTrue(DubGen.isSubtypeOf(Func)); |
| Expect.isTrue(DubGen.isSubtypeOf(NumGen)); |
| Expect.isFalse(DubGen.isSubtypeOf(IntGen)); |
| |
| Expect.isTrue(Func.isSubtypeOf(Obj)); |
| Expect.isTrue(NumGen.isSubtypeOf(Obj)); |
| Expect.isTrue(IntGen.isSubtypeOf(Obj)); |
| Expect.isTrue(DubGen.isSubtypeOf(Obj)); |
| |
| // Function - argument type. |
| TypeMirror NumPredRef = NumPred.referent; |
| TypeMirror IntPredRef = IntPred.referent; |
| TypeMirror DubPredRef = DubPred.referent; |
| |
| Expect.isTrue(Func.isSubtypeOf(Func)); |
| Expect.isTrue(NumPredRef.isSubtypeOf(NumPredRef)); |
| Expect.isTrue(IntPredRef.isSubtypeOf(IntPredRef)); |
| Expect.isTrue(DubPredRef.isSubtypeOf(DubPredRef)); |
| |
| Expect.isTrue(NumPredRef.isSubtypeOf(Func)); |
| Expect.isTrue(NumPredRef.isSubtypeOf(IntPredRef)); |
| Expect.isTrue(NumPredRef.isSubtypeOf(DubPredRef)); |
| |
| Expect.isTrue(IntPredRef.isSubtypeOf(Func)); |
| Expect.isTrue(IntPredRef.isSubtypeOf(NumPredRef)); |
| Expect.isFalse(IntPredRef.isSubtypeOf(DubPredRef)); |
| |
| Expect.isTrue(DubPredRef.isSubtypeOf(Func)); |
| Expect.isTrue(DubPredRef.isSubtypeOf(NumPredRef)); |
| Expect.isFalse(DubPredRef.isSubtypeOf(IntPredRef)); |
| |
| Expect.isTrue(Func.isSubtypeOf(Obj)); |
| Expect.isTrue(NumPredRef.isSubtypeOf(Obj)); |
| Expect.isTrue(IntPredRef.isSubtypeOf(Obj)); |
| Expect.isTrue(DubPredRef.isSubtypeOf(Obj)); |
| |
| // Function - return type. |
| TypeMirror NumGenRef = NumGen.referent; |
| TypeMirror IntGenRef = IntGen.referent; |
| TypeMirror DubGenRef = DubGen.referent; |
| |
| Expect.isTrue(NumGenRef.isSubtypeOf(NumGenRef)); |
| Expect.isTrue(IntGenRef.isSubtypeOf(IntGenRef)); |
| Expect.isTrue(DubGenRef.isSubtypeOf(DubGenRef)); |
| |
| Expect.isTrue(NumGenRef.isSubtypeOf(Func)); |
| Expect.isTrue(NumGenRef.isSubtypeOf(IntGenRef)); |
| Expect.isTrue(NumGenRef.isSubtypeOf(DubGenRef)); |
| |
| Expect.isTrue(IntGenRef.isSubtypeOf(Func)); |
| Expect.isTrue(IntGenRef.isSubtypeOf(NumGenRef)); |
| Expect.isFalse(IntGenRef.isSubtypeOf(DubGenRef)); |
| |
| Expect.isTrue(DubGenRef.isSubtypeOf(Func)); |
| Expect.isTrue(DubGenRef.isSubtypeOf(NumGenRef)); |
| Expect.isFalse(DubGenRef.isSubtypeOf(IntGenRef)); |
| |
| Expect.isTrue(Func.isSubtypeOf(Obj)); |
| Expect.isTrue(NumGenRef.isSubtypeOf(Obj)); |
| Expect.isTrue(IntGenRef.isSubtypeOf(Obj)); |
| Expect.isTrue(DubGenRef.isSubtypeOf(Obj)); |
| |
| // Function typedef / function. |
| Expect.isTrue(NumPred.isSubtypeOf(NumPredRef)); |
| Expect.isTrue(IntPred.isSubtypeOf(IntPredRef)); |
| Expect.isTrue(DubPred.isSubtypeOf(DubPredRef)); |
| Expect.isTrue(NumPredRef.isSubtypeOf(NumPred)); |
| Expect.isTrue(IntPredRef.isSubtypeOf(IntPred)); |
| Expect.isTrue(DubPredRef.isSubtypeOf(DubPred)); |
| |
| // Function typedef / function. |
| Expect.isTrue(NumGen.isSubtypeOf(NumGenRef)); |
| Expect.isTrue(IntGen.isSubtypeOf(IntGenRef)); |
| Expect.isTrue(DubGen.isSubtypeOf(DubGenRef)); |
| Expect.isTrue(NumGenRef.isSubtypeOf(NumGen)); |
| Expect.isTrue(IntGenRef.isSubtypeOf(IntGen)); |
| Expect.isTrue(DubGenRef.isSubtypeOf(DubGen)); |
| |
| // Type variable. |
| TypeMirror TFromA = |
| (thisLibrary.declarations[#A] as ClassMirror).typeVariables.single; |
| TypeMirror TFromB = |
| (thisLibrary.declarations[#B] as ClassMirror).typeVariables.single; |
| TypeMirror TFromC = |
| (thisLibrary.declarations[#C] as ClassMirror).typeVariables.single; |
| |
| Expect.isTrue(TFromA.isSubtypeOf(TFromA)); |
| Expect.isTrue(TFromB.isSubtypeOf(TFromB)); |
| Expect.isTrue(TFromC.isSubtypeOf(TFromC)); |
| |
| Expect.isFalse(TFromA.isSubtypeOf(TFromB)); |
| Expect.isFalse(TFromA.isSubtypeOf(TFromC)); |
| Expect.isFalse(TFromB.isSubtypeOf(TFromA)); |
| Expect.isFalse(TFromB.isSubtypeOf(TFromC)); |
| Expect.isFalse(TFromC.isSubtypeOf(TFromA)); |
| Expect.isFalse(TFromC.isSubtypeOf(TFromB)); |
| |
| TypeMirror Num = coreLibrary.declarations[#num] as TypeMirror; |
| Expect.isTrue(TFromC.isSubtypeOf(Num)); |
| Expect.isFalse(Num.isSubtypeOf(TFromC)); |
| |
| // dynamic & void. |
| TypeMirror Dynamic = mirrors.dynamicType; |
| Expect.isTrue(Dynamic.isSubtypeOf(Dynamic)); |
| Expect.isTrue(Obj.isSubtypeOf(Dynamic)); |
| Expect.isTrue(Super.isSubtypeOf(Dynamic)); |
| Expect.isTrue(Sub1.isSubtypeOf(Dynamic)); |
| Expect.isTrue(Sub2.isSubtypeOf(Dynamic)); |
| Expect.isTrue(NumPred.isSubtypeOf(Dynamic)); |
| Expect.isTrue(IntPred.isSubtypeOf(Dynamic)); |
| Expect.isTrue(DubPred.isSubtypeOf(Dynamic)); |
| Expect.isTrue(NumPredRef.isSubtypeOf(Dynamic)); |
| Expect.isTrue(IntPredRef.isSubtypeOf(Dynamic)); |
| Expect.isTrue(DubPredRef.isSubtypeOf(Dynamic)); |
| Expect.isTrue(NumGen.isSubtypeOf(Dynamic)); |
| Expect.isTrue(IntGen.isSubtypeOf(Dynamic)); |
| Expect.isTrue(DubGen.isSubtypeOf(Dynamic)); |
| Expect.isTrue(NumGenRef.isSubtypeOf(Dynamic)); |
| Expect.isTrue(IntGenRef.isSubtypeOf(Dynamic)); |
| Expect.isTrue(DubGenRef.isSubtypeOf(Dynamic)); |
| Expect.isTrue(TFromA.isSubtypeOf(Dynamic)); |
| Expect.isTrue(TFromB.isSubtypeOf(Dynamic)); |
| Expect.isTrue(TFromC.isSubtypeOf(Dynamic)); |
| Expect.isTrue(Dynamic.isSubtypeOf(Obj)); |
| Expect.isTrue(Dynamic.isSubtypeOf(Super)); |
| Expect.isTrue(Dynamic.isSubtypeOf(Sub1)); |
| Expect.isTrue(Dynamic.isSubtypeOf(Sub2)); |
| Expect.isTrue(Dynamic.isSubtypeOf(NumPred)); |
| Expect.isTrue(Dynamic.isSubtypeOf(IntPred)); |
| Expect.isTrue(Dynamic.isSubtypeOf(DubPred)); |
| Expect.isTrue(Dynamic.isSubtypeOf(NumPredRef)); |
| Expect.isTrue(Dynamic.isSubtypeOf(IntPredRef)); |
| Expect.isTrue(Dynamic.isSubtypeOf(DubPredRef)); |
| Expect.isTrue(Dynamic.isSubtypeOf(NumGen)); |
| Expect.isTrue(Dynamic.isSubtypeOf(IntGen)); |
| Expect.isTrue(Dynamic.isSubtypeOf(DubGen)); |
| Expect.isTrue(Dynamic.isSubtypeOf(NumGenRef)); |
| Expect.isTrue(Dynamic.isSubtypeOf(IntGenRef)); |
| Expect.isTrue(Dynamic.isSubtypeOf(DubGenRef)); |
| Expect.isTrue(Dynamic.isSubtypeOf(TFromA)); |
| Expect.isTrue(Dynamic.isSubtypeOf(TFromB)); |
| Expect.isTrue(Dynamic.isSubtypeOf(TFromC)); |
| |
| TypeMirror Void = mirrors.voidType; |
| Expect.isTrue(Void.isSubtypeOf(Void)); |
| Expect.isFalse(Obj.isSubtypeOf(Void)); |
| Expect.isFalse(Super.isSubtypeOf(Void)); |
| Expect.isFalse(Sub1.isSubtypeOf(Void)); |
| Expect.isFalse(Sub2.isSubtypeOf(Void)); |
| Expect.isFalse(NumPred.isSubtypeOf(Void)); |
| Expect.isFalse(IntPred.isSubtypeOf(Void)); |
| Expect.isFalse(DubPred.isSubtypeOf(Void)); |
| Expect.isFalse(NumPredRef.isSubtypeOf(Void)); |
| Expect.isFalse(IntPredRef.isSubtypeOf(Void)); |
| Expect.isFalse(DubPredRef.isSubtypeOf(Void)); |
| Expect.isFalse(NumGen.isSubtypeOf(Void)); |
| Expect.isFalse(IntGen.isSubtypeOf(Void)); |
| Expect.isFalse(DubGen.isSubtypeOf(Void)); |
| Expect.isFalse(NumGenRef.isSubtypeOf(Void)); |
| Expect.isFalse(IntGenRef.isSubtypeOf(Void)); |
| Expect.isFalse(DubGenRef.isSubtypeOf(Void)); |
| Expect.isFalse(TFromA.isSubtypeOf(Void)); |
| Expect.isFalse(TFromB.isSubtypeOf(Void)); |
| Expect.isFalse(TFromC.isSubtypeOf(Void)); |
| Expect.isFalse(Void.isSubtypeOf(Obj)); |
| Expect.isFalse(Void.isSubtypeOf(Super)); |
| Expect.isFalse(Void.isSubtypeOf(Sub1)); |
| Expect.isFalse(Void.isSubtypeOf(Sub2)); |
| Expect.isFalse(Void.isSubtypeOf(NumPred)); |
| Expect.isFalse(Void.isSubtypeOf(IntPred)); |
| Expect.isFalse(Void.isSubtypeOf(DubPred)); |
| Expect.isFalse(Void.isSubtypeOf(NumPredRef)); |
| Expect.isFalse(Void.isSubtypeOf(IntPredRef)); |
| Expect.isFalse(Void.isSubtypeOf(DubPredRef)); |
| Expect.isFalse(Void.isSubtypeOf(NumGen)); |
| Expect.isFalse(Void.isSubtypeOf(IntGen)); |
| Expect.isFalse(Void.isSubtypeOf(DubGen)); |
| Expect.isFalse(Void.isSubtypeOf(NumGenRef)); |
| Expect.isFalse(Void.isSubtypeOf(IntGenRef)); |
| Expect.isFalse(Void.isSubtypeOf(DubGenRef)); |
| Expect.isFalse(Void.isSubtypeOf(TFromA)); |
| Expect.isFalse(Void.isSubtypeOf(TFromB)); |
| Expect.isFalse(Void.isSubtypeOf(TFromC)); |
| |
| Expect.isTrue(Dynamic.isSubtypeOf(Void)); |
| Expect.isTrue(Void.isSubtypeOf(Dynamic)); |
| } |
| |
| main() { |
| test(currentMirrorSystem()); |
| } |