Language/15_Types/5_Function_Types_A01_t05.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 a single formal parameter
 * (class, generic, function, Dynamic).
 * @author iefremov
 * @reviewer rodionov
 */
import "../../Utils/expect.dart";

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

typedef t1(B b);
typedef t2(C c);
typedef t3(int i);
typedef t4(var v);
typedef t5(Map m);
typedef t6(Map<int, num> m);
typedef t7(t1 f);
typedef t8(Object f);

typedef okWithF1_1(A a);
typedef okWithF1_2(B a);
typedef okWithF1_3(C a);
typedef okWithF1_4(D a);

f1(A a) {}
f2(B a) {}
f3(C a) {}
f4(D a) {}
f5(Object a) {}
f6(var a) {}

f10(A a) {}
f11(B a) {}
f12(C a) {}
f13(D a) {}
f14(Object a) {}
f15(var a) {}

f20(num n) {}
f21(int i) {}
f22(Object a) {}
f23(var a) {}

f30(A a) {}
f31(B a) {}
f32(C a) {}
f33(D a) {}
f34(Object a) {}
f35(var a) {}
f36(num n) {}
f37(int i) {}
f38(Map a) {}
f39(Map<List<Map<List, List<int>>>, List> a) {}
f40(List a) {}
f41(t8 a) {}
f42(t7 a) {}

f50(Map m) {}
f51(Map<List, t8> m) {}
f52(Object m) {}  
f53(var m) {}
f54(Map<List, List> m) {}
f55(Map<int, t8> m) {}

f61(Map<num, num> m) {}
f62(Map<int, int> m) {}
f63(Map m) {}
f64(Object m) {} 
f65(var m) {}

f71(okWithF1_1 g) {}
f72(okWithF1_2 g) {}
f73(okWithF1_3 g) {}
f74(okWithF1_4 g) {}

f81(A a) {}
f82(B a) {}
f83(C a) {}
f84(D a) {}
f85(Object a) {}
f86(var a) {}
f87(num n) {}
f88(int i) {}
f89(Map a) {}
f90(Map<List<Map<List, List<int>>>, List> a) {}
f91(List a) {}

main() {
  Expect.isTrue(f1 is t1);
  Expect.isTrue(f2 is t1);
  Expect.isTrue(f3 is t1);
  Expect.isTrue(f4 is t1);
  Expect.isTrue(f5 is t1);
  Expect.isTrue(f6 is t1);

  Expect.isTrue(f10 is t2);
  Expect.isTrue(f11 is t2);
  Expect.isTrue(f12 is t2);
  Expect.isTrue(f13 is t2);
  Expect.isTrue(f14 is t2);
  Expect.isTrue(f15 is t2);

  Expect.isTrue(f20 is t3);
  Expect.isTrue(f21 is t3);
  Expect.isTrue(f22 is t3);
  Expect.isTrue(f23 is t3);

  Expect.isTrue(f30 is t4);
  Expect.isTrue(f31 is t4);
  Expect.isTrue(f32 is t4);
  Expect.isTrue(f33 is t4);
  Expect.isTrue(f34 is t4);
  Expect.isTrue(f35 is t4);
  Expect.isTrue(f36 is t4);
  Expect.isTrue(f37 is t4);
  Expect.isTrue(f38 is t4);
  Expect.isTrue(f39 is t4);
  Expect.isTrue(f40 is t4);
  Expect.isTrue(f41 is t4);
  Expect.isTrue(f42 is t4);
  
  Expect.isTrue(f50 is t5);
  Expect.isTrue(f51 is t5);
  Expect.isTrue(f52 is t5);
  Expect.isTrue(f53 is t5);
  Expect.isTrue(f54 is t5);
  Expect.isTrue(f55 is t5);

  Expect.isTrue(f61 is t6);
  Expect.isTrue(f62 is t6);
  Expect.isTrue(f63 is t6);
  Expect.isTrue(f64 is t6);
  Expect.isTrue(f65 is t6);

  Expect.isTrue(f71 is t7);
  Expect.isTrue(f72 is t7);
  Expect.isTrue(f73 is t7);
  Expect.isTrue(f74 is t7);

  Expect.isTrue(f81 is t8);
  Expect.isTrue(f82 is t8);
  Expect.isTrue(f83 is t8);
  Expect.isTrue(f84 is t8);
  Expect.isTrue(f85 is t8);
  Expect.isTrue(f86 is t8);
  Expect.isTrue(f87 is t8);
  Expect.isTrue(f88 is t8);
  Expect.isTrue(f89 is t8);
  Expect.isTrue(f90 is t8);
  Expect.isTrue(f91 is t8); 
}