Language/15_Types/5_Function_Types_A01_t04.dart

/*
 * Copyright (c) 2011, 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 function type (T1,...Tk,[Tk+1,...,Tn+m]) -> T is a subtype of the function
 * type (S1,...,Sk+j,[Sk+j+1,...,Sn]) -> S, if all of the following conditions are met:
 * 1. Either S is void, or T <=> S.
 * 2. For all i 1 <= i <= n, Ti <=> Si.
 * @description Checks that this statement is true for function types with no arguments: 
 * S is some generic, T is some other type assignable to S.
 * @author iefremov
 * @reviewer rodionov
 */
import "../../Utils/expect.dart";

typedef t1();
typedef void t2();
typedef int t3();
typedef String t4();
typedef double t5();
typedef Object t6();
typedef t1 t7();
typedef List t8();
typedef List<int> t9();
typedef Map<int, List<List<List>>> t10();
typedef t10 t11();
typedef t11 t12();
typedef num t13();
typedef List<B> t14();
typedef Map t15();
typedef Map<num, Object> t16();

class A {}
class B extends A {}
class C extends B {}
class D extends C {}

  //() -> T is () -> List
List f1() {}
List<int> f2() {}
List<double> f3() {}
List<Object> f4() {}
List<String> f5() {}
List<Map<int, Map>> f6() {}
List<Map<int, t8>> f7() {}
List<Map<t8, t8>> f8() {}
List<t8> f9() {}
  //() -> T is () -> List<int>
List f10() {}
List<int> f11() {}
List<Object> f12() {}
  //() -> T is () -> List<B>
List f13() {}
List<Object> f14() {}
List<A> f15() {}
List<B> f16() {}
List<C> f17() {}
List<D> f18() {}
  //() -> T is () -> Map
Map f19() {}
Map<Object, Object> f20() {}
Map<Object, int> f21() {}
Map<int, Object> f22() {}
Map<int, int> f23() {}
Map<int, List<int>> f24() {}
Map<List<int>, List<int>> f25() {}
Map<List<int>, t15> f26() {}
Map<t15, t15> f27() {}
Map<t15, t14> f28() {}
  //() -> T is () -> Map<num, Object>
Map<num, Object> f29() {}
Map<int, Object> f30() {}
Map<double, Object> f31() {}
Map<double, int> f32() {}
Map<double, num> f33() {}
Map<int, A> f34() {}
Map<num, B> f35() {}
Map<num, List> f36() {}
Map<num, Map> f37() {}
Map<num, Map<int, int>> f38() {}
Map<num, Map<List, List<int>>> f39() {}

main() {
  //() -> T is () -> List
  Expect.isTrue(f1 is t8);
  Expect.isTrue(f2 is t8);
  Expect.isTrue(f3 is t8);
  Expect.isTrue(f4 is t8);
  Expect.isTrue(f5 is t8);
  Expect.isTrue(f6 is t8);
  Expect.isTrue(f7 is t8);
  Expect.isTrue(f8 is t8);
  Expect.isTrue(f9 is t8);

  //() -> T is () -> List<int>
  Expect.isTrue(f10 is t9);
  Expect.isTrue(f11 is t9);
  Expect.isTrue(f12 is t9);

  //() -> T is () -> List<B>
  Expect.isTrue(f13 is t14);
  Expect.isTrue(f14 is t14);
  Expect.isTrue(f15 is t14);
  Expect.isTrue(f16 is t14);
  Expect.isTrue(f17 is t14);
  Expect.isTrue(f18 is t14);

  //() -> T is () -> Map
  Expect.isTrue(f19 is t15);
  Expect.isTrue(f20 is t15);
  Expect.isTrue(f21 is t15);
  Expect.isTrue(f22 is t15);
  Expect.isTrue(f23 is t15);
  Expect.isTrue(f24 is t15);
  Expect.isTrue(f25 is t15);
  Expect.isTrue(f26 is t15);
  Expect.isTrue(f27 is t15);
  Expect.isTrue(f28 is t15);

  //() -> T is () -> Map<num, Object>
  Expect.isTrue(f29 is t16);
  Expect.isTrue(f30 is t16);
  Expect.isTrue(f31 is t16);
  Expect.isTrue(f32 is t16);
  Expect.isTrue(f33 is t16);
  Expect.isTrue(f34 is t16);
  Expect.isTrue(f35 is t16);
  Expect.isTrue(f36 is t16);
  Expect.isTrue(f37 is t16);
  Expect.isTrue(f38 is t16);
  Expect.isTrue(f39 is t16);
}