118 lines
2.0 KiB
V
118 lines
2.0 KiB
V
interface Speaker {
|
|
say_hello() string
|
|
speak(msg string)
|
|
}
|
|
|
|
struct Boss {
|
|
name string
|
|
}
|
|
|
|
fn (b Boss) say_hello() string {
|
|
return 'Hello, My name is $b.name and I\'m the bawz'
|
|
}
|
|
|
|
fn (b Boss) speak(msg string) {
|
|
println(msg)
|
|
}
|
|
|
|
struct Cat {
|
|
name string
|
|
breed string
|
|
}
|
|
|
|
fn (c Cat) say_hello() string {
|
|
return 'Meow meow $c.name the $c.breed meow'
|
|
}
|
|
|
|
fn (c Cat) speak(msg string) {
|
|
println('Meow $msg')
|
|
}
|
|
|
|
struct Baz {
|
|
mut:
|
|
sp Speaker
|
|
}
|
|
|
|
fn test_interface_struct() {
|
|
bz1 := Baz{
|
|
sp: Boss{
|
|
name: 'Richard'
|
|
}
|
|
}
|
|
assert bz1.sp.say_hello() == "Hello, My name is Richard and I'm the bawz"
|
|
print('Test Boss inside Baz struct: ')
|
|
bz1.sp.speak('Hello world!')
|
|
bz2 := Baz{
|
|
sp: Cat{
|
|
name: 'Grungy'
|
|
breed: 'Persian Cat'
|
|
}
|
|
}
|
|
assert bz2.sp.say_hello() == 'Meow meow Grungy the Persian Cat meow'
|
|
print('Test Cat inside Baz struct: ')
|
|
bz2.sp.speak('Hello world!')
|
|
}
|
|
|
|
fn test_interface_mut_struct() {
|
|
mut mbaz := Baz{
|
|
sp: Boss{
|
|
name: 'Derek'
|
|
}
|
|
}
|
|
assert mbaz.sp.say_hello() == "Hello, My name is Derek and I'm the bawz"
|
|
mbaz.sp = Cat{
|
|
name: 'Dog'
|
|
breed: 'Not a dog'
|
|
}
|
|
assert mbaz.sp.say_hello() == 'Meow meow Dog the Not a dog meow'
|
|
}
|
|
|
|
fn test_interface_struct_from_array() {
|
|
bazs := [
|
|
Baz{
|
|
sp: Cat{
|
|
name: 'Kitty'
|
|
breed: 'Catty Koo'
|
|
}
|
|
},
|
|
Baz{
|
|
sp: Boss{
|
|
name: 'Bob'
|
|
}
|
|
},
|
|
]
|
|
assert bazs[0].sp.say_hello() == 'Meow meow Kitty the Catty Koo meow'
|
|
assert bazs[1].sp.say_hello() == "Hello, My name is Bob and I'm the bawz"
|
|
}
|
|
|
|
/*
|
|
// TODO: fix this too; currently with V 0.1.30 7426544 produces: `V panic: as cast: cannot cast 200 to 197`
|
|
fn test_interface_struct_from_mut_array() {
|
|
mut bazs := [
|
|
Baz{
|
|
sp: Cat{
|
|
name: 'Kitty'
|
|
breed: 'Catty Koo'
|
|
}
|
|
},
|
|
Baz{
|
|
sp: Boss{
|
|
name: 'Bob'
|
|
}
|
|
}
|
|
]
|
|
|
|
bazs[0].sp = Boss{
|
|
name: 'Ross'
|
|
}
|
|
|
|
bazs[1].sp = Cat{
|
|
name: 'Doggy'
|
|
breed: 'Doggy Doo'
|
|
}
|
|
|
|
assert bazs[0].sp.say_hello() == 'Hello, My name is Ross and I\'m the bawz'
|
|
assert bazs[1].sp.say_hello() == 'Meow meow Doggy the Doggy Doo meow'
|
|
}
|
|
*/
|