Function std::any::request_ref

pub fn request_ref<T, P>(provider: &'a P) -> Option<&'a T> where
    T: 'static + ?Sized,
    P: Provider + ?Sized, 

🔬 This is a nightly-only experimental API. (provide_any #96024)

Request a reference from the Provider.

Examples

Get a string reference from a provider.

use std::any::{Provider, request_ref};

fn get_str<P: Provider>(provider: &P) -> &str {
    request_ref::<str, _>(provider).unwrap()
}