Struct type_map::TypeMap

pub struct TypeMap { /* fields omitted */ }

The typemap container

Implementations

impl TypeMap

pub fn new() -> Self

Create an empty TypeMap.

pub fn insert<T: 'static>(&mut self, val: T) -> Option<T>

Insert a value into this TypeMap.

If a value of this type already exists, it will be returned.

pub fn contains<T: 'static>(&self) -> bool

Check if container contains value for type

pub fn get<T: 'static>(&self) -> Option<&T>

Get a reference to a value previously inserted on this TypeMap.

pub fn get_mut<T: 'static>(&mut self) -> Option<&mut T>

Get a mutable reference to a value previously inserted on this TypeMap.

pub fn remove<T: 'static>(&mut self) -> Option<T>

Remove a value from this TypeMap.

If a value of this type exists, it will be returned.

pub fn clear(&mut self)

Clear the TypeMap of all inserted values.

pub fn entry<T: 'static>(&mut self) -> Entry<'_, T>

Get an entry in the TypeMap for in-place manipulation.

Trait Implementations

impl Debug for TypeMap

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for TypeMap

fn default() -> TypeMap

Returns the “default value” for a type.