Trait ObjectArena 

pub trait ObjectArena: 'static + Default {
    type Object: Object<Handle = Self::Handle, Arena = Self>;
    type Handle: Handle<Object = Self::Object>;

    // Required methods
    fn try_get(handle: Self::Handle, w: Wr<'_>) -> Option<&Self::Object>;
    fn try_get_mut(handle: Self::Handle, w: W<'_>) -> Option<&mut Self::Object>;
    fn as_strong_if_alive(
        handle: Self::Handle,
        w: W<'_>,
    ) -> Option<Strong<Self::Handle>>;
    fn print_debug(
        f: &mut Formatter<'_>,
        handle: Self::Handle,
        w: Wr<'_>,
    ) -> Result;
}

A custom arena managing a specific type of Object.

This is likely only relevant to you if you are implementing a custom arena.

Required Associated Types

type Object: Object<Handle = Self::Handle, Arena = Self>

The Object being managed by the arena.

type Handle: Handle<Object = Self::Object>

The Handle being managed by the arena.

Required Methods

fn try_get(handle: Self::Handle, w: Wr<'_>) -> Option<&Self::Object>

Implements the Handle::try_r operation.

fn try_get_mut(handle: Self::Handle, w: W<'_>) -> Option<&mut Self::Object>

Implements the Handle::try_m operation.

fn as_strong_if_alive( handle: Self::Handle, w: W<'_>, ) -> Option<Strong<Self::Handle>>

Implements the Handle::as_strong_if_alive operation.

fn print_debug(f: &mut Formatter<'_>, handle: Self::Handle, w: Wr<'_>) -> Result

Implements the Handle’s fmt::Debug operation.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<T> ObjectArena for DefaultObjectArena<T>

where T: Object<Arena = Self> + Debug,

type Object = T

type Handle = <T as Object>::Handle