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 /* * Copyright (c) 2018, 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. */ /** * @assertion A type T0 is a subtype of a type T1 (written T0 <: T1) when: * Named Function Types: T0 is U0 Function * (T0 x0, ..., Tn xn, {Tn+1 xn+1, ..., Tm xm}) * * and T1 is U1 Function(S0 y0, ..., Sn yn, * {Sn+1 yn+1, ..., Sq yq}) * and {yn+1, ... , yq} subset of {xn+1, ... , xm} * and Si[Z0/Y0, ..., Zk/Yk] <: Vi[Z0/X0, ..., Zk/Xk] for i in 0...n * and Si[Z0/Y0, ..., Zk/Yk] <: Tj[Z0/X0, ..., Zk/Xk] for i in n+1...q, yj = xi * and U0[Z0/X0, ..., Zk/Xk] <: U1[Z0/Y0, ..., Zk/Yk] * and B0i[Z0/X0, ..., Zk/Xk] === B1i[Z0/Y0, ..., Zk/Yk] for i in 0...k * where the Zi are fresh type variables with bounds B0i[Z0/X0, ..., Zk/Xk] * @description Check that if T0 and T1 satisfies the rules above, then T0 is * subtype of T1. Test generic types * @author sgrekhov@unipro.ru */ /** * @description Check that if type T0 is a subtype of a type T1, then instance * of T0 can be be assigned to the superclass member of type T1 * @author sgrekhov@unipro.ru */ /* * This test is generated from named_function_types_A05.dart and * class_member_x02.dart. * Don't modify it. If you want to change this file, change one of the files * above and then run generator.dart to regenerate the tests. */ import '../../utils/common.dart'; // SharedOptions=--enable-experiment=non-nullable class A {} class C extends A {} class U {} class B0 {} class B1 {} class V0 {} class V1 {} class V2 {} class V3 {} class V4 {} typedef T0 = U, int> Function( V0 x0, V1 x1, {V2? x2, V3? x3, V4? x4}); typedef T1 = U Function( V0, int> y0, V1, int> y1, {V2, int>? x2, V3, int>? x3}); U, int> t0Func( V0 x0, V1 x1, {V2? x2, V3? x3, V4? x4}) => new U, int>(); U t1Func( V0, int> y0, V1, int> y1, {V2, int>? x2, V3, int>? x3}) => new U(); T0 t0Instance = t0Func; T1 t1Instance = t1Func; const t1Default = t1Func; class ClassMemberSuper1_t02 { T1 m; ClassMemberSuper1_t02(dynamic value): m = value { } ClassMemberSuper1_t02.named(dynamic value): m = value { } ClassMemberSuper1_t02.short(this.m); void set superSetter(T1 val) {} } class ClassMember1_t02 extends ClassMemberSuper1_t02 { ClassMember1_t02() : super(forgetType(t0Instance)) {} ClassMember1_t02.named() : super.named(forgetType(t0Instance)) {} ClassMember1_t02.short() : super.short(forgetType(t0Instance)); test() { m = forgetType(t0Instance); superSetter = forgetType(t0Instance); } } class ClassMemberSuper2_t02 { X m; ClassMemberSuper2_t02(dynamic value): m = value { } ClassMemberSuper2_t02.named(dynamic value): m = value { } ClassMemberSuper2_t02.short(this.m); void set superSetter(X val) {} } class ClassMember2_t02 extends ClassMemberSuper2_t02 { ClassMember2_t02() : super(forgetType(t0Instance)) {} ClassMember2_t02.named() : super.named(forgetType(t0Instance)) {} ClassMember2_t02.short() : super.short(forgetType(t0Instance)); test() { m = forgetType(t0Instance); superSetter = forgetType(t0Instance); } } main() { ClassMember1_t02 c1 = new ClassMember1_t02(); c1 = new ClassMember1_t02.short(); c1 = new ClassMember1_t02.named(); c1.m = forgetType(t0Instance); c1.test(); c1.superSetter = forgetType(t0Instance); // Test type parameters }