Macro impl_from_for_primitive 

macro_rules! impl_from_for_primitive {
    ($from:ty => $this:ty $(,)?) => { ... };
}

Implement From for a primitive.

Examples

With a newtype struct:

use impl_more::impl_from_for_primitive;

struct Checked(bool);
impl_from_for_primitive!(Checked => bool);

let foo = bool::from(Checked(true));