pub trait Convert<O> {
fn convert(self) -> O;
}
#[macro_export]
macro_rules! impl_convert {
($t:ident < $g:ident >) => {
impl<$g: $crate::Convert<O>, O> $crate::Convert<$t<O>> for $t<$g> {
fn convert(self) -> $t<O> {
self.map($g::convert)
}
}
};
}
macro_rules! impl_base_convert {
($($i:ident),* -> $o:ident) => {
$(impl Convert<$o> for $i {
fn convert(self) -> $o {
self as $o
}
})*
};
}
impl_base_convert!(u8 -> u8);
impl_base_convert!(i8 -> i8);
impl_base_convert!(u8, u16 -> u16);
impl_base_convert!(u8, i8, i16 -> i16);
impl_base_convert!(u8, u16, u32 -> u32);
impl_base_convert!(u8, i8, u16, i16, i32 -> i32);
impl_base_convert!(u8, u16, u32, u64 -> u64);
impl_base_convert!(u8, i8, u16, i16, u32, i32, i64 -> i64);
impl_base_convert!(u8, u16, u32, u64, u128 -> u128);
impl_base_convert!(u8, i8, u16, i16, u32, i32, u64, i64, i128 -> i128);
impl_base_convert!(u8, i8, u16, i16, f32 -> f32);
impl_base_convert!(u8, i8, u16, i16, u32, i32, f32, f64 -> f64);