Unions
Just like structs, unions support embedding.
struct Rgba32_Component {
r u8
g u8
b u8
a u8
}
union Rgba32 {
Rgba32_Component
value u32
}
clr1 := Rgba32{
value: 0x008811FF
}
clr2 := Rgba32{
Rgba32_Component: Rgba32_Component{
a: 128
}
}
sz := sizeof(Rgba32)
unsafe {
println('Size: ${sz}B,clr1.b: ${clr1.b},clr2.b: ${clr2.b}')
}
Output: Size: 4B, clr1.b: 136, clr2.b: 0
Union member access must be performed in an unsafe block.
[!NOTE] Embedded struct arguments are not necessarily stored in the order listed.