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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:
* Positional Function Types: T0 is U0 Function<X0 extends B00, ... ,
* Xk extends B0k>(V0 x0, ..., Vn xn, [Vn+1 xn+1, ..., Vm xm])
*
* and T1 is U1 Function<Y0 extends B10, ..., Yk extends B1k>(S0 y0, ...,
* Sp yp, [Sp+1 yp+1, ..., Sq yq])
* and p >= n
* and m >= q
* and Si[Z0/Y0, ..., Zk/Yk] <: Vi[Z0/X0, ..., Zk/Xk] for i in 0...q
* 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 with high-level types and the case when
* p > n and m > q.
* @author sgrekhov@unipro.ru
*/
// SharedOptions=--enable-experiment=non-nullable
class A {}
class C extends A {}
class U0<X, Y, Z> extends U1<X, Y, Z> {}
class U1<X, Y, Z> {}
class B0<X, Y, Z> {}
class B1<X, Y, Z> {}
class V0<X, Y, Z> {}
class V1<X, Y, Z> {}
class V2<X, Y, Z> {}
class V3<X, Y, Z> {}
class V4<X, Y, Z> {}
class S0<X, Y, Z> extends V0<X, Y, Z> {}
class S1<X, Y, Z> extends V1<X, Y, Z> {}
class S2<X, Y, Z> extends V2<X, Y, Z> {}
class S3<X, Y, Z> extends V3<X, Y, Z> {}
class S4<X, Y, Z> extends V4<X, Y, Z> {}
class X0<X, Y, Z> extends B0<X, Y, Z> {}
class X1<X, Y, Z> extends B1<X, Y, Z> {}
class Y0<X, Y, Z> extends B0<X, Y, Z> {}
class Y1<X, Y, Z> extends B1<X, Y, Z> {}
typedef T0 = U0<C, List<String>, int> Function<X extends B0, Y extends B1>(
V0<dynamic, void, Object> x0, V1<void, Object, dynamic> x1,
[V2<Object, dynamic, void>? x2, V3<dynamic, Object, void> ?x3, V4<dynamic,
void, Object>? x4]);
typedef T1 = U1<dynamic, void, Object> Function<X extends B0, Y extends B1>(
S0<C, List<String>, int> y0, S1<C, List<String>, int> y1,
S2<C, List<String>, int> x2, [S3<C, List<String>, int>? x3]);
U0<C, List<String>, int> t0Func<X extends B0, Y extends B1>(
V0<dynamic, void, Object> x0, V1<void, Object, dynamic> x1,
[V2<Object,dynamic, void>? x2, V3<dynamic, Object, void>? x3, V4<dynamic,
void, Object>? x4]) => new U0<C, List<String>, int>();
U1<dynamic, void, Object> t1Func<X extends B0, Y extends B1>(
S0<C, List<String>, int> y0, S1<C, List<String>, int> y1,
S2<C, List<String>, int> x2, [S3<C, List<String>, int> x3]) =>
new U1<dynamic, void, Object>();
T0 t0Instance = t0Func;
T1 t1Instance = t1Func;
const t1Default = t1Func;
//# @T0 = T0
//# @T1 = T1
//# @GenericFunctionType