BatchContext

async_dataloader

Struct BatchContext 

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pub struct BatchContext { /* private fields */ }
Expand description

Context provided when executing within a batched() future.

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impl BatchContext

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pub fn set_ctx(&mut self, val: Box<dyn Any>) -> Option<Box<dyn Any>>

Provide context of a given type. Exactly one value per type may be stored.

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pub fn get_ctx<T: Any>(&self) -> Option<&T>

Get context of a given type. Exactly one value per type may be stored.

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pub fn mut_ctx<'a, T: Any>(&'a mut self) -> Option<&'a mut T>

Get context of a given type. Exactly one value per type may be stored.

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impl<T> BorrowMut<T> for T
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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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Calls U::from(self).

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type Error = Infallible

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Performs the conversion.
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impl<T, U> TryInto<U> for T
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type Error = <U as TryFrom<T>>::Error

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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.