File - medvednikov/vxx2


1 interface Widget {
2 mut:
3     init()
4 }
5 
6 struct Button {}
7 
8 fn (mut b Button) init() {}
9 
10 struct Window {
11 mut:
12     widgets []Widget
13 }
14 
15 fn (mut w Window) add(mut widget Widget) {}
16 
17 fn main() {
18     mut win := Window{}
19     mut btn := Button{}
20     win.add(btn) // should be an error here
21 }
22

1	interface Widget {
2	mut:
3	init()
4	}
5
6	struct Button {}
7
8	fn (mut b Button) init() {}
9
10	struct Window {
11	mut:
12	widgets []Widget
13	}
14
15	fn (mut w Window) add(mut widget Widget) {}
16
17	fn main() {
18	mut win := Window{}
19	mut btn := Button{}
20	win.add(btn) // should be an error here
21	}
22