Trait CastFrom

pub trait CastFrom<Src> {
    // Required method
    fn cast_from(src: Src) -> Self;
}

Used to cast values.

This trait enables trait constraints for casting in the opposite direction to Cast.

Examples

use az::CastFrom;
trait Tr {
    type Assoc: CastFrom<u8>;
    fn assoc_from_u8(a: u8) -> Self::Assoc {
        CastFrom::cast_from(a)
    }
}
impl Tr for () {
    type Assoc = i8;
}
assert_eq!(<() as Tr>::assoc_from_u8(5u8), 5i8);

Required Methods

fn cast_from(src: Src) -> Self

Casts the value.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<Src: Cast<Dst>, Dst> CastFrom<Src> for Dst