Macro cow_into_owned 

macro_rules! cow_into_owned {
    ($owned:expr, $cow:expr $(,)?) => { ... };
}

Available on crate feature alloc only.

Converts a Cow produced from an existing owned value back into an owned value.

If the Cow is owned, this returns the owned value inside it. If the Cow is borrowed, this returns the original owned value.

This is a macro so the Cow expression can borrow from the original value before the macro moves that value in the borrowed branch.

Examples

use str_utils::{cow_into_owned, ToLowercase};

let s = String::from("abc");
let ptr = s.as_ptr();
let s = cow_into_owned!(s, s.as_str().to_lowercase_cow());

assert_eq!("abc", s);
assert_eq!(ptr, s.as_ptr());