Function serenity::utils::with_cache

pub fn with_cache<T, F>(f: F) -> T where
    F: Fn(&Cache) -> T, 

A function for doing automatic reading (and the releasing of the guard as well) This is particularly useful if you just want to use the cache for this one time, or don't want to be messing with the RwLock directly.

Examples

Return the bot's id

use serenity::utils;

// assuming that the id is `1234`:
assert_eq!(1234, utils::with_cache(|cache| cache.user.id));