Struct ValueCache

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pub struct ValueCache<N, V, VF> { /* private fields */ }

Expand description

Helper struct for constructing a value flow graph. It caches the results of applying value_fn to nodes, and also keeps track of the mapping from values to nodes and nodes to values.

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impl<N, V, VF, E> ValueCache<N, V, VF>
where N: Hash + Eq + Clone, V: Hash + Eq, VF: AsyncFn(&N) -> Result<V, E>,

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pub fn new(value_fn: VF) -> Self

Creates a new ValueCache that uses the given function to get values.

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pub async fn get_value(&mut self, node: &N) -> Result<Rc<V>, E>

Returns the value for the given node, computing it if it is not already cached.

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pub fn get_nodes_for_value(&self, value: &Rc<V>) -> Option<&Vec<N>>

Returns the nodes that have the given value.

Auto Trait Implementations§

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impl<N, V, VF> RefUnwindSafe for ValueCache<N, V, VF>
where VF: RefUnwindSafe, N: RefUnwindSafe, V: RefUnwindSafe,

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impl<N, V, VF> Unpin for ValueCache<N, V, VF>
where VF: Unpin, N: Unpin,

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impl<N, V, VF> UnsafeUnpin for ValueCache<N, V, VF>
where VF: UnsafeUnpin,

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impl<N, V, VF> UnwindSafe for ValueCache<N, V, VF>
where VF: UnwindSafe, N: UnwindSafe, V: RefUnwindSafe,

Blanket Implementations§

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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<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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impl<T, U> Into 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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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