Struct MemoFrame

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pub struct MemoFrame(/* private fields */);
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A MemoFrame represents the scope of a frame for the MemoCache.

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impl MemoFrame

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pub fn cache<Key, Value, ValueFn>(&self, key: Key, value_fn: ValueFn) -> Value
where Key: 'static + Eq + Hash, Value: 'static + Clone, ValueFn: FnOnce() -> Value,

Lookup a value in the cache.

If a value is not there, it will be generated using value_fn. All functional dependencies of value_fn should be included in key.

The value will be cached for the next frame, whether it’s new or existing.

It is up to the client to use a key that uniquely identifies the functional dependencies of variables captured by value_fn.

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impl Drop for MemoFrame

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fn drop(&mut self)

Executes the destructor for this type. Read more

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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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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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.