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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} subsetof {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 B0i[Z0/X0, ..., Zk/Xk] !== B1i[Z0/Y0, ..., Zk/Yk] * for any i in 0...k, then T0 is not a subtype of T1. Test generic types * @author sgrekhov@unipro.ru */ /** * @description Check that if type T0 is not a subtype of a type T1, then * instance of T0 cannot be be assigned to the superclass member of type T1 * @author sgrekhov@unipro.ru */ /* * This test is generated from named_function_types_fail_A53.dart and * class_member_fail_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'; import '../../../../Utils/expect.dart'; 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( // Y extends B0, not B1 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}) => null; U t1Func( V0, int> y0, V1, int> y1, {V2, int> x2, V3, int> x3}) => null; T0 t0Instance = t0Func; T1 t1Instance = 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)); ClassMember1_t02.valid() : super(null); test1() { m = forgetType(t0Instance); } test2() { superSetter = forgetType(t0Instance); } } class ClassMemberSuper2_t02 { X m; ClassMemberSuper2_t02(X value) { m = value; } ClassMemberSuper2_t02.named(X 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)); ClassMember2_t02.valid() : super(null); test1() { m = forgetType(t0Instance); } test2() { superSetter = forgetType(t0Instance); } } main() { Expect.throws(() {new ClassMember1_t02();}, (e) => e is TypeError); Expect.throws(() {new ClassMember1_t02.short();}, (e) => e is TypeError); Expect.throws(() {new ClassMember1_t02.named();}, (e) => e is TypeError); Expect.throws(() { new ClassMember1_t02.valid().m = forgetType(t0Instance); }, (e) => e is TypeError); Expect.throws(() { new ClassMember1_t02.valid().superSetter = forgetType(t0Instance); }, (e) => e is TypeError); Expect.throws(() { new ClassMember1_t02.valid().test1(); }, (e) => e is TypeError); Expect.throws(() { new ClassMember1_t02.valid().test2(); }, (e) => e is TypeError); // Test type parameters }