blob: 7be25c255309988a631b0804da71d939f95d565d [file] [log] [blame]
// 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.
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];
ClassMirror Sub1 = thisLibrary.declarations[#Subclass1];
ClassMirror Sub2 = thisLibrary.declarations[#Subclass2];
ClassMirror Obj = coreLibrary.declarations[#Object];
ClassMirror Nul = coreLibrary.declarations[#Null];
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];
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());
}