// Copyright (c) 2019, 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.

// @dart = 2.9

/// @assertion A class declaration, type alias, or function [G] may be generic,
/// that is, [G] may have formal type parameters declared.
/// @description Checks various correct generic interface declarations.
/// @author iefremov


abstract class I {}

abstract class I1<T> {}
abstract class I2<$, $$, $$$> {}
abstract class I5<T extends I1<List<List<List<List>>>>> {}
abstract class I6<T extends I1<I6<T>>> {}

class C1 implements I1 {}
class C2 implements I2 {}
class C3 implements I5 {}
class C4 implements I {}

main() {
  new C1();
  new C2();
  new C3();
  new C4();
  new M();
}

abstract class ManyParameters<
    T0,T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,
    T21,T22,T23,T24,T25,T26,T27,T28,T29,T30,T31,T32,T33,T34,T35,T36,T37,T38,
    T39,T40,T41,T42,T43,T44,T45,T46,T47,T48,T49,T50,T51,T52,T53,T54,T55,T56,
    T57,T58,T59,T60,T61,T62,T63,T64,T65,T66,T67,T68,T69,T70,T71,T72,T73,T74,
    T75,T76,T77,T78,T79,T80,T81,T82,T83,T84,T85,T86,T87,T88,T89,T90,T91,T92,
    T93,T94,T95,T96,T97,T98,T99,T100,T101> {}

class M implements ManyParameters {}