Trait OptionStringRef

pub trait OptionStringRef<'o> {
    // Required method
    fn as_str(&'o self) -> Option<&'o str>;
}

Expand description

Extension trait for optional string types. Adds the as_str() extension method onto owned string Option values.

use ref_map::*;

let maybe_string = Some(String::from("foo_bar"));
let maybe_str: Option<&str> = maybe_string.as_str();

Required Methods§

Borrows the internal (probably owned) string as an Option.

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".