Struct Scratchpad 

pub struct Scratchpad { /* private fields */ }

Run-scoped typed storage shared by hooks.

Implementations

impl Scratchpad

pub fn insert<T>(&self, value: T) -> Option<T>

where T: Clone + WasmCompatSend + WasmCompatSync + 'static,

Insert a value.

pub fn get<T>(&self) -> Option<T>

where T: Clone + WasmCompatSend + WasmCompatSync + 'static,

Get a cloned value.

pub fn contains<T>(&self) -> bool

where T: WasmCompatSend + WasmCompatSync + 'static,

Whether a type is present.

pub fn remove<T>(&self) -> Option<T>

where T: Clone + WasmCompatSend + WasmCompatSync + 'static,

Remove a value.

pub fn update<T, R>(&self, update: impl FnOnce(&mut T) -> R) -> R

where T: Clone + Default + WasmCompatSend + WasmCompatSync + 'static,

Atomically update a value, starting at Default.

Trait Implementations

impl Clone for Scratchpad

fn clone(&self) -> Scratchpad

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Scratchpad

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

Formats the value using the given formatter.

impl Default for Scratchpad

fn default() -> Scratchpad

Returns the “default value” for a type.