| 1 | struct Foo { |
| 2 | mut: |
| 3 | func ?fn (voidptr) ?bool = unsafe { nil } |
| 4 | } |
| 5 | |
| 6 | fn callback(foo &Foo) ?bool { |
| 7 | return foo.func? == callback |
| 8 | } |
| 9 | |
| 10 | fn test_main() { |
| 11 | t := Foo{ |
| 12 | func: callback |
| 13 | } |
| 14 | assert t.func? == callback |
| 15 | call_fn := t.func? |
| 16 | assert call_fn(&t)? |
| 17 | |
| 18 | mut a := Foo{} |
| 19 | a.func = callback |
| 20 | assert a.func? == callback |
| 21 | call_fn2 := a.func? |
| 22 | assert call_fn2(&a)? |
| 23 | } |
| 24 |