Trait TypeMap

pub trait TypeMap {
    type Key: MapKey<Map = Self>;

    // Required methods
    fn new() -> Self;
    fn insert<T: TypedKeyTrait<Self::Key>>(&mut self, value: T::Value);
    fn get<T: TypedKeyTrait<Self::Key>>(&self) -> Option<&T::Value>;
    fn get_mut<T: TypedKeyTrait<Self::Key>>(&mut self) -> Option<&mut T::Value>;
    fn remove<T: TypedKeyTrait<Self::Key>>(&mut self) -> Option<T::Value>;
    fn contains_key<T: TypedKeyTrait<Self::Key>>(&self) -> bool;
}

A trait implemented by all typemaps that provides all basic typemap functions

Required Associated Types

type Key: MapKey<Map = Self>

Required Methods

fn new() -> Self

Creates a new typemap

fn insert<T: TypedKeyTrait<Self::Key>>(&mut self, value: T::Value)

Inserts a value into the typemap with the given key

fn get<T: TypedKeyTrait<Self::Key>>(&self) -> Option<&T::Value>

Returns a reference to a value from the type map with the given provided key

fn get_mut<T: TypedKeyTrait<Self::Key>>(&mut self) -> Option<&mut T::Value>

Returns a mutable reference to a value from the type map with the given provided key

fn remove<T: TypedKeyTrait<Self::Key>>(&mut self) -> Option<T::Value>

Removes a value from the map for the given key

fn contains_key<T: TypedKeyTrait<Self::Key>>(&self) -> bool

Returns if the map contains a given key

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 TypeMap for AnyTypeMap

type Key = AnyTypeMapKey

impl TypeMap for CloneSendSyncTypeMap

type Key = CloneSendSyncTypeMapKey

impl TypeMap for CloneTypeMap

type Key = CloneTypeMapKey

impl TypeMap for PartialEqTypeMap

type Key = PartialEqTypeMapKey

impl TypeMap for SendSyncTypeMap

type Key = SendSyncTypeMapKey