Macro impl_newtype_from_into 

macro_rules! impl_newtype_from_into {
    ($newtype:ty [<=>] $inner:ty $(,)?) => { ... };
}

Implement From and Into for a newtype struct.

Examples

use impl_more::impl_newtype_from_into;

struct Checked(bool);
impl_newtype_from_into!(Checked [<=>] bool);

let foo = Checked::from(true);
assert_eq!(foo.0, true);

let foo = bool::from(Checked(false));
assert_eq!(foo, false);