Struct StoreProxy

pub struct StoreProxy<'store> { /* private fields */ }

A Proxy representing a Store with ongoing borrows

This struct represents a handle to a store from which some values are already mutably borrowed, and as such cannot be touched.

See Store::with_value for detailed explanation of its use.

Implementations

impl<'store> StoreProxy<'store>

pub fn insert<V: Any + 'static>(&mut self, value: V) -> Token<V>

Insert a new value in the proxified store

Returns a clonable token that you can later use to access this value.

pub fn get<V: Any + 'static>(&self, token: &Token<V>) -> &V

Access value previously inserted in the proxified store

Panics if the provided token corresponds to a value that was removed, or if this value is already borrowed.

pub fn get_mut<V: Any + 'static>(&mut self, token: &Token<V>) -> &mut V

Mutably access value previously inserted in the proxified store

Panics if the provided token corresponds to a value that was removed, or if this value is already borrowed.

pub fn remove<V: Any + 'static>(&mut self, token: Token<V>) -> V

Remove a value previously inserted in the proxified store

Panics if the provided token corresponds to a value that was already removed, or if this value is already borrowed.

pub fn with_value<V: Any + 'static, T, F>( &mut self, token: &Token<V>, f: F, ) -> T

where F: FnOnce(&mut StoreProxy<'_>, &mut V) -> T,

Create a sub-scope with access to a value

Panics if the provided token corresponds to a value that was removed, or if this value is already borrowed.

See Store::with_value for full documentation.

Trait Implementations

impl<'a> From<&'a mut Store> for StoreProxy<'a>

fn from(store: &'a mut Store) -> StoreProxy<'a>

Converts to this type from the input type.

impl<'a, 'b> From<&'a mut StoreProxy<'b>> for StoreProxy<'a>

where 'b: 'a,

fn from(proxy: &'a mut StoreProxy<'b>) -> StoreProxy<'a>

Converts to this type from the input type.