Struct Entry

pub struct Entry<'a, T: 'a> { /* private fields */ }

Implementations

impl<'a, T> Entry<'a, T>

where T: Resource + 'a,

An entry to a resource container. This is similar to the Entry API found in the standard library.

Examples

use async_ecs::World;

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

let mut world = World::default();

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

pub fn new(inner: Inner<'a>) -> Self

Create new entry.

pub fn or_insert(self, v: T) -> RefMut<'a, T>

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, T>

where F: FnOnce() -> T,

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