DefIdCache

rustc_query_system::query::caches

Struct DefIdCache 

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pub struct DefIdCache<V> {
    local: VecCache<DefIndex, V, DepNodeIndex>,
    foreign: DefaultCache<DefId, V>,
}
Expand description

In-memory cache for queries whose key is a DefId.

Selects between one of two internal caches, depending on whether the key is a local ID or foreign-crate ID.

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§local: VecCache<DefIndex, V, DepNodeIndex>

Stores the local DefIds in a dense map. Local queries are much more often dense, so this is a win over hashing query keys at marginal memory cost (~5% at most) compared to FxHashMap.

§foreign: DefaultCache<DefId, V>

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impl<V> Default for DefIdCache<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 DefIdCache<V>
where V: Copy,

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type Key = DefId

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type Value = V

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

Returns the cached value (and other information) associated with the given key, if it is present in the cache.
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fn complete(&self, key: DefId, value: V, index: DepNodeIndex)

Adds a key/value entry to this cache. Read more
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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> DynSend for DefIdCache<V>
where V: DynSend,

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impl<V> DynSync for DefIdCache<V>
where V: DynSend,

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impl<V> !Freeze for DefIdCache<V>

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impl<V> !RefUnwindSafe for DefIdCache<V>

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

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impl<V> !Sync for DefIdCache<V>

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

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impl<V> UnwindSafe for DefIdCache<V>
where V: RefUnwindSafe + UnwindSafe,

Blanket Implementations§

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impl<T> Aligned for T

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const ALIGN: Alignment

Alignment of Self.
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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> 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<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> 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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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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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.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<Tcx, T> Value<Tcx> for T
where Tcx: DepContext,

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default fn from_cycle_error( tcx: Tcx, cycle_error: &CycleError, _guar: ErrorGuaranteed, ) -> T

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<T> ErasedDestructor for T
where T: 'static,

Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 384 bytes