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|
module main
interface Speaker {
say() string
}
fn test_todo() {}
/*
// QTODO
struct ChatRoom {
mut:
talkers map[string]Speaker
}
fn new_room() &ChatRoom {
return &ChatRoom{
talkers: map[string]Speaker
}
}
fn (mut r ChatRoom) add(name string, s Speaker) {
r.talkers[name] = s
}
fn test_using_a_map_of_speaker_interfaces() {
mut room := new_room()
room.add('my cat', Cat{name: 'Tigga'} )
room.add('my dog', Dog{name: 'Pirin'} )
room.add('stray dog', Dog{name: 'Anoni'} )
room.add('me', Human{name: 'Bilbo'} )
room.add('she', Human{name: 'Maria'} )
mut text := ''
for name, subject in room.talkers {
line := '${name:12s}: ${subject.say()}'
println(line)
text += line
}
assert text.contains(' meows ')
assert text.contains(' barks ')
assert text.contains(' says ')
}
//
struct Cat { name string }
fn (c &Cat) say() string { return '${c.name} meows "MEOW!"' }
struct Dog { name string }
fn (d &Dog) say() string { return '${d.name} barks "Bau Bau!"' }
struct Human { name string }
fn (h &Human) say() string { return '${h.name} says "Hello"' }
*/
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