File - medvednikov/v2


1 struct Cat {
2     breed string
3 }
4 
5 interface Animal {
6     breed string
7 }
8 
9 fn (a Animal) foo() {}
10 
11 fn new_animal(breed string) Animal {
12     return &Cat{breed}
13 }
14 
15 fn test_methods_on_interfaces_dont_exist_on_implementers() {
16     a := new_animal('persian')
17     if a is Cat {
18         a.foo()
19     }
20 }
21

1	struct Cat {
2	breed string
3	}
4
5	interface Animal {
6	breed string
7	}
8
9	fn (a Animal) foo() {}
10
11	fn new_animal(breed string) Animal {
12	return &Cat{breed}
13	}
14
15	fn test_methods_on_interfaces_dont_exist_on_implementers() {
16	a := new_animal('persian')
17	if a is Cat {
18	a.foo()
19	}
20	}
21