Struct rustc_query_system::query::caches::SingleCache

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pub struct SingleCache<V> {
    cache: Lock<Option<(V, DepNodeIndex)>>,
}

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§cache: Lock<Option<(V, DepNodeIndex)>>

Trait Implementations§

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impl<V> Default for SingleCache<V>

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<V> QueryCache for SingleCache<V>where V: Copy,

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type Key = ()

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type Value = V

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fn lookup(&self, _key: &()) -> Option<(V, DepNodeIndex)>

Checks if the query is already computed and in the cache.
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fn complete(&self, _key: (), value: V, index: DepNodeIndex)

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fn iter(&self, f: &mut dyn FnMut(&Self::Key, &Self::Value, DepNodeIndex))

Auto Trait Implementations§

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impl<V> !RefUnwindSafe for SingleCache<V>

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impl<V> Send for SingleCache<V>where V: Send,

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impl<V> !Sync for SingleCache<V>

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impl<V> Unpin for SingleCache<V>where V: Unpin,

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impl<V> UnwindSafe for SingleCache<V>where V: UnwindSafe,

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere 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 Twhere T: ?Sized,

const: unstable · source§

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 Twhere 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 Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

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 Twhere U: TryFrom<T>,

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

The type returned in the event of a conversion error.
const: unstable · source§

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

Performs the conversion.

Layout§

Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.