| // Copyright (c) 2017, 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. |
| |
| import 'package:async_helper/async_helper.dart'; |
| import 'package:compiler/src/elements/entities.dart'; |
| import 'package:compiler/src/elements/types.dart'; |
| import 'package:expect/expect.dart'; |
| import '../helpers/type_test_helper.dart'; |
| |
| const List<FunctionTypeData> existentialTypeData = const <FunctionTypeData>[ |
| const FunctionTypeData('void', 'F1', '<T>(T t)'), |
| const FunctionTypeData('void', 'F2', '<S>(S s)'), |
| const FunctionTypeData('void', 'F3', '<U, V>(U u, V v)'), |
| const FunctionTypeData('void', 'F4', '<U, V>(V v, U u)'), |
| const FunctionTypeData('void', 'F5', '<W extends num>(W w)'), |
| const FunctionTypeData('void', 'F6', '<X extends int>(X x)'), |
| const FunctionTypeData('void', 'F7', '<Y extends num>(Y y, [int i])'), |
| const FunctionTypeData('Z', 'F8', '<Z extends num>(Z z)'), |
| const FunctionTypeData('T', 'F13', '<T>(T t1, T t2)'), |
| const FunctionTypeData('S', 'F14', '<S>(S s1, S s2)'), |
| ]; |
| |
| main() { |
| asyncTest(() async { |
| var env = await TypeEnvironment.create( |
| createTypedefs(existentialTypeData, additionalData: """ |
| class C1 {} |
| class C2 {} |
| class C3<T> { |
| factory C3.fact() => C3.gen(); |
| C3.gen(); |
| } |
| class C4 implements C3<C4> {} |
| void F9<U extends V, V>(U u, V v) {} |
| F10() { |
| void local<A extends B, B>(A a, B b) {} |
| } |
| void F11<Q extends C3<Q>>(Q q) {} |
| void F12<P extends C3<P>>(P p) {} |
| class C5<T> { |
| Map<T,A> F15<A extends B, B extends T>(A a, B b) => null; |
| Map<T,A> F16<A extends T, B extends A>(A a, B b) => null; |
| T F17<A extends List<B>, B extends Map<T,A>>(A a, B b, T t) => null; |
| T F18<P extends T>( |
| [Q Function<Q extends P>(P, Q, T) f1, |
| X Function<X extends P>(P, X, T) f2]) => null; |
| } |
| |
| main() { |
| ${createUses(existentialTypeData)} |
| |
| new C1(); |
| new C2(); |
| new C3.fact(); |
| new C4(); |
| |
| F9(null, null); |
| F10(); |
| F11(null); |
| F12(null); |
| new C5<num>().F15<int, int>(1, 2); |
| new C5<num>().F16<int, int>(1, 2); |
| new C5<num>().F17(null, null, null); |
| new C5<num>().F18(); |
| } |
| """)); |
| |
| testToString(FunctionType type, String expectedToString) { |
| Expect.equals(expectedToString, type.toString()); |
| } |
| |
| testBounds(FunctionType type, List<DartType> expectedBounds) { |
| Expect.equals(expectedBounds.length, type.typeVariables.length, |
| "Unexpected type variable count in $type."); |
| for (int i = 0; i < expectedBounds.length; i++) { |
| Expect.equals(expectedBounds[i], type.typeVariables[i].bound, |
| "Unexpected ${i}th bound in $type."); |
| } |
| } |
| |
| testInstantiate(FunctionType type, List<DartType> instantiation, |
| String expectedToString) { |
| DartType result = type.instantiate(instantiation); |
| Expect.equals(expectedToString, result.toString(), |
| "Unexpected instantiation of $type with $instantiation: $result"); |
| } |
| |
| void testSubst(List<DartType> arguments, List<DartType> parameters, |
| DartType type1, String expectedToString) { |
| DartType subst = type1.subst(arguments, parameters); |
| Expect.equals(expectedToString, subst.toString(), |
| "$type1.subst($arguments,$parameters)"); |
| } |
| |
| testRelations(DartType a, DartType b, |
| {bool areEqual: false, bool isSubtype: false}) { |
| if (areEqual) { |
| isSubtype = true; |
| } |
| Expect.equals( |
| areEqual, |
| a == b, |
| "Expected `$a` and `$b` to be ${areEqual ? 'equal' : 'non-equal'}, " |
| "but they are not."); |
| Expect.equals( |
| isSubtype, |
| env.isSubtype(a, b), |
| "Expected `$a` ${isSubtype ? '' : 'not '}to be a subtype of `$b`, " |
| "but it is${isSubtype ? ' not' : ''}."); |
| if (isSubtype) { |
| Expect.isTrue(env.isPotentialSubtype(a, b), |
| '$a <: $b but not a potential subtype.'); |
| } |
| } |
| |
| InterfaceType Object_ = env['Object']; |
| InterfaceType num_ = env['num']; |
| InterfaceType int_ = env['int']; |
| InterfaceType C1 = instantiate(env.getClass('C1'), []); |
| InterfaceType C2 = instantiate(env.getClass('C2'), []); |
| ClassEntity C3 = env.getClass('C3'); |
| InterfaceType C4 = instantiate(env.getClass('C4'), []); |
| FunctionType F1 = env.getFieldType('F1'); |
| FunctionType F2 = env.getFieldType('F2'); |
| FunctionType F3 = env.getFieldType('F3'); |
| FunctionType F4 = env.getFieldType('F4'); |
| FunctionType F5 = env.getFieldType('F5'); |
| FunctionType F6 = env.getFieldType('F6'); |
| FunctionType F7 = env.getFieldType('F7'); |
| FunctionType F8 = env.getFieldType('F8'); |
| FunctionType F9 = env.getMemberType('F9'); |
| FunctionType F10 = env.getClosureType('F10'); |
| FunctionType F11 = env.getMemberType('F11'); |
| FunctionType F12 = env.getMemberType('F12'); |
| FunctionType F13 = env.getFieldType('F13'); |
| FunctionType F14 = env.getFieldType('F14'); |
| ClassEntity C5 = env.getClass('C5'); |
| TypeVariableType C5_T = |
| (env.getElementType('C5') as InterfaceType).typeArguments.single; |
| FunctionType F15 = env.getMemberType('F15', C5); |
| FunctionType F16 = env.getMemberType('F16', C5); |
| FunctionType F17 = env.getMemberType('F17', C5); |
| FunctionType F18 = env.getMemberType('F18', C5); |
| |
| List<FunctionType> all = <FunctionType>[ |
| F1, |
| F2, |
| F3, |
| F4, |
| F5, |
| F6, |
| F7, |
| F8, |
| F9, |
| F10, |
| F11, |
| F12, |
| F13, |
| F14, |
| F15, |
| F16, |
| F17, |
| F18, |
| ]; |
| |
| all.forEach(print); |
| |
| testToString(F1, 'void Function<#A>(#A)'); |
| testToString(F2, 'void Function<#A>(#A)'); |
| testToString(F3, 'void Function<#A,#B>(#A,#B)'); |
| testToString(F4, 'void Function<#A,#B>(#B,#A)'); |
| testToString(F5, 'void Function<#A extends num>(#A)'); |
| testToString(F6, 'void Function<#A extends int>(#A)'); |
| testToString(F7, 'void Function<#A extends num>(#A,[int])'); |
| testToString(F8, '#A Function<#A extends num>(#A)'); |
| testToString(F9, 'void Function<#A extends #B,#B>(#A,#B)'); |
| testToString(F10, 'void Function<#A extends #B,#B>(#A,#B)'); |
| testToString(F11, 'void Function<#A extends C3<#A>>(#A)'); |
| testToString(F12, 'void Function<#A extends C3<#A>>(#A)'); |
| testToString(F13, '#A Function<#A>(#A,#A)'); |
| testToString(F14, '#A Function<#A>(#A,#A)'); |
| testToString( |
| F15, 'Map<C5.T,#A> Function<#A extends #B,#B extends C5.T>(#A,#B)'); |
| testToString( |
| F16, 'Map<C5.T,#A> Function<#A extends C5.T,#B extends #A>(#A,#B)'); |
| testToString(F17, |
| 'C5.T Function<#A extends List<#B>,#B extends Map<C5.T,#A>>(#A,#B,Object)'); |
| testToString( |
| F18, |
| 'C5.T Function<#A extends C5.T>([' |
| '#A2 Function<#A2 extends #A>(#A,#A2,C5.T),' |
| '#A3 Function<#A3 extends #A>(#A,#A3,C5.T)])'); |
| |
| testBounds(F1, [Object_]); |
| testBounds(F2, [Object_]); |
| testBounds(F3, [Object_, Object_]); |
| testBounds(F4, [Object_, Object_]); |
| testBounds(F5, [num_]); |
| testBounds(F6, [int_]); |
| testBounds(F7, [num_]); |
| testBounds(F8, [num_]); |
| testBounds(F9, [F9.typeVariables.last, Object_]); |
| testBounds(F10, [F10.typeVariables.last, Object_]); |
| testBounds(F11, [ |
| instantiate(C3, [F11.typeVariables.last]) |
| ]); |
| testBounds(F12, [ |
| instantiate(C3, [F12.typeVariables.last]) |
| ]); |
| testBounds(F13, [Object_]); |
| testBounds(F14, [Object_]); |
| |
| testInstantiate(F1, [C1], 'void Function(C1)'); |
| testInstantiate(F2, [C2], 'void Function(C2)'); |
| testInstantiate(F3, [C1, C2], 'void Function(C1,C2)'); |
| testInstantiate(F4, [C1, C2], 'void Function(C2,C1)'); |
| testInstantiate(F5, [num_], 'void Function(num)'); |
| testInstantiate(F6, [int_], 'void Function(int)'); |
| testInstantiate(F7, [int_], 'void Function(int,[int])'); |
| testInstantiate(F8, [int_], 'int Function(int)'); |
| testInstantiate(F9, [int_, num_], 'void Function(int,num)'); |
| testInstantiate(F10, [int_, num_], 'void Function(int,num)'); |
| testInstantiate(F11, [C4], 'void Function(C4)'); |
| testInstantiate(F12, [C4], 'void Function(C4)'); |
| testInstantiate(F13, [C1], 'C1 Function(C1,C1)'); |
| testInstantiate(F14, [C2], 'C2 Function(C2,C2)'); |
| testInstantiate(F15, [int_, num_], 'Map<C5.T,int> Function(int,num)'); |
| testInstantiate(F16, [num_, int_], 'Map<C5.T,num> Function(num,int)'); |
| |
| testSubst([num_], [C5_T], F15, |
| 'Map<num,#A> Function<#A extends #B,#B extends num>(#A,#B)'); |
| testSubst([num_], [C5_T], F16, |
| 'Map<num,#A> Function<#A extends num,#B extends #A>(#A,#B)'); |
| testSubst([num_], [C5_T], F17, |
| 'num Function<#A extends List<#B>,#B extends Map<num,#A>>(#A,#B,Object)'); |
| |
| testSubst( |
| [num_], |
| [C5_T], |
| F18, |
| 'num Function<#A extends num>([' |
| '#A2 Function<#A2 extends #A>(#A,#A2,num),' |
| '#A3 Function<#A3 extends #A>(#A,#A3,num)])'); |
| Map<FunctionType, List<FunctionType>> expectedEquals = |
| <FunctionType, List<FunctionType>>{ |
| F1: [F2], |
| F2: [F1], |
| F9: [F10], |
| F10: [F9], |
| F11: [F12], |
| F12: [F11], |
| F13: [F14], |
| F14: [F13], |
| }; |
| |
| Map<FunctionType, List<FunctionType>> expectedSubtype = |
| <FunctionType, List<FunctionType>>{ |
| F7: [F5], |
| F8: [F5], |
| }; |
| |
| for (FunctionType f1 in all) { |
| for (FunctionType f2 in all) { |
| testRelations(f1, f2, |
| areEqual: identical(f1, f2) || |
| (expectedEquals[f1]?.contains(f2) ?? false), |
| isSubtype: expectedSubtype[f1]?.contains(f2) ?? false); |
| } |
| } |
| |
| testRelations(F1.typeVariables.first, F1.typeVariables.first, |
| areEqual: true); |
| testRelations(F1.typeVariables.first, F2.typeVariables.first); |
| |
| env.elementEnvironment.forEachConstructor(C3, |
| (ConstructorEntity constructor) { |
| Expect.equals( |
| 0, |
| constructor.parameterStructure.typeParameters, |
| "Type parameters found on constructor $constructor: " |
| "${constructor.parameterStructure}"); |
| List<TypeVariableType> functionTypeVariables = |
| env.elementEnvironment.getFunctionTypeVariables(constructor); |
| Expect.isTrue( |
| functionTypeVariables.isEmpty, |
| "Function type variables found on constructor $constructor: " |
| "$functionTypeVariables"); |
| }); |
| }); |
| } |
