Struct Entry

pub struct Entry<'a, R> { /* private fields */ }

Implementations

impl<'a, R> Entry<'a, R>

where R: Resource,

An entry to a resource container.

This is similar to the Entry API found in the standard library.

Examples

use rt_map::RtMap;

#[derive(Debug)]
struct Res(i32);

let mut rt_map = RtMap::<u32, Res>::default();

let value = rt_map.entry(0).or_insert(Res(4));
println!("{:?}", value.0 * 2);

pub fn new(inner: Entry<'a, TypeId, Box<dyn Resource>>) -> Self

Create new entry.

pub fn or_insert(self, v: R) -> RefMut<'a, R>

Returns this entry’s value, inserts and returns v otherwise.

Please note that you should use or_insert_with in case the creation of the value is expensive.

pub fn or_insert_with<F>(self, f: F) -> RefMut<'a, R>

where F: FnOnce() -> R,

Returns this entry’s value, inserts and returns the return value of f otherwise.