Struct StoreContextMut 

pub struct StoreContextMut<'a, T> { /* private fields */ }

A temporary handle to a &mut Store<T>.

This type is suitable for AsContextMut or AsContext trait bounds on methods if desired. For more information, see Store.

Implementations

impl<T> StoreContextMut<'_, T>

pub fn engine(&self) -> &Engine

Returns the underlying Engine this store is connected to.

pub fn data(&self) -> &T

Access the underlying data owned by this store.

Same as Store::data.

pub fn data_mut(&mut self) -> &mut T

Access the underlying data owned by this store.

Same as Store::data_mut.

pub fn get_fuel(&self) -> Result<u64, Error>

Returns the remaining fuel of the Store if fuel metering is enabled.

For more information see Store::get_fuel.

Errors

If fuel metering is disabled.

pub fn set_fuel(&mut self, fuel: u64) -> Result<(), Error>

Sets the remaining fuel of the Store to value if fuel metering is enabled.

For more information see Store::get_fuel.

Errors

If fuel metering is disabled.

Trait Implementations

impl<T> AsContext for StoreContextMut<'_, T>

type Data = T

The user state associated with the Store, aka the T in Store<T>.

fn as_context(&self) -> StoreContext<'_, Self::Data>

Returns the store context that this type provides access to.

impl<T> AsContextMut for StoreContextMut<'_, T>

fn as_context_mut(&mut self) -> StoreContextMut<'_, Self::Data>

Returns the store context that this type provides access to.

impl<'a, T: Debug> Debug for StoreContextMut<'a, T>

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

Formats the value using the given formatter.

impl<'a, T: AsContextMut> From<&'a mut T> for StoreContextMut<'a, T::Data>

fn from(ctx: &'a mut T) -> Self

Converts to this type from the input type.