pub struct StableCrateId(pub(crate) Hash64);
Expand description
A StableCrateId
is a 64-bit hash of a crate name, together with all
-Cmetadata
arguments, and some other data. It is to CrateNum
what DefPathHash
is to
DefId
. It is stable across compilation sessions.
Since the ID is a hash value, there is a small chance that two crates
end up with the same StableCrateId
. The compiler will check for such
collisions when loading crates and abort compilation in order to avoid
further trouble.
For more information on the possibility of hash collisions in rustc,
see the discussion in DefId
.
Tuple Fields§
§0: Hash64
Implementations§
Trait Implementations§
Source§impl Clone for StableCrateId
impl Clone for StableCrateId
Source§fn clone(&self) -> StableCrateId
fn clone(&self) -> StableCrateId
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moreSource§impl Debug for StableCrateId
impl Debug for StableCrateId
Source§impl<__D> Decodable<__D> for StableCrateIdwhere
__D: SpanDecoder,
impl<__D> Decodable<__D> for StableCrateIdwhere
__D: SpanDecoder,
fn decode(__decoder: &mut __D) -> StableCrateId
Source§impl<__E> Encodable<__E> for StableCrateIdwhere
__E: SpanEncoder,
impl<__E> Encodable<__E> for StableCrateIdwhere
__E: SpanEncoder,
Source§impl Hash for StableCrateId
impl Hash for StableCrateId
Source§impl<__CTX> HashStable<__CTX> for StableCrateIdwhere
__CTX: HashStableContext,
impl<__CTX> HashStable<__CTX> for StableCrateIdwhere
__CTX: HashStableContext,
fn hash_stable( &self, __hcx: &mut __CTX, __hasher: &mut StableHasher<SipHasher128>, )
Source§impl LowerHex for StableCrateId
impl LowerHex for StableCrateId
Source§impl Ord for StableCrateId
impl Ord for StableCrateId
Source§fn cmp(&self, other: &StableCrateId) -> Ordering
fn cmp(&self, other: &StableCrateId) -> Ordering
1.21.0 · Source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
Source§impl PartialEq for StableCrateId
impl PartialEq for StableCrateId
Source§impl PartialOrd for StableCrateId
impl PartialOrd for StableCrateId
impl Copy for StableCrateId
impl Eq for StableCrateId
impl StructuralPartialEq for StableCrateId
Auto Trait Implementations§
impl DynSend for StableCrateId
impl DynSync for StableCrateId
impl Freeze for StableCrateId
impl RefUnwindSafe for StableCrateId
impl Send for StableCrateId
impl Sync for StableCrateId
impl Unpin for StableCrateId
impl UnwindSafe for StableCrateId
Blanket Implementations§
Source§impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
fn allocate_on(self, arena: &'tcx Arena<'tcx>) -> &'tcx mut T
fn allocate_from_iter( arena: &'tcx Arena<'tcx>, iter: impl IntoIterator<Item = T>, ) -> &'tcx mut [T]
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
clone_to_uninit
)Source§impl<Q, K> Comparable<K> for Q
impl<Q, K> Comparable<K> for Q
Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.Source§impl<T> Instrument for T
impl<T> Instrument for T
Source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
Source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
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 moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
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 moreSource§impl<T> Pointable for T
impl<T> Pointable for T
Source§impl<T> WithSubscriber for T
impl<T> WithSubscriber for T
Source§fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
Source§fn with_current_subscriber(self) -> WithDispatch<Self>
fn with_current_subscriber(self) -> WithDispatch<Self>
impl<'a, T> Captures<'a> for Twhere
T: ?Sized,
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: 8 bytes