Struct rustc_span::def_id::StableCrateId
source · pub struct StableCrateId(pub(crate) u64);
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: u64
Implementations
Trait Implementations
sourceimpl Clone for StableCrateId
impl Clone for StableCrateId
sourcefn clone(&self) -> StableCrateId
fn clone(&self) -> StableCrateId
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresourceimpl Debug for StableCrateId
impl Debug for StableCrateId
sourceimpl<__D: Decoder> Decodable<__D> for StableCrateId
impl<__D: Decoder> Decodable<__D> for StableCrateId
sourceimpl<__E: Encoder> Encodable<__E> for StableCrateId
impl<__E: Encoder> Encodable<__E> for StableCrateId
sourceimpl Hash for StableCrateId
impl Hash for StableCrateId
sourceimpl<__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)
sourceimpl Ord for StableCrateId
impl Ord for StableCrateId
sourcefn cmp(&self, other: &StableCrateId) -> Ordering
fn cmp(&self, other: &StableCrateId) -> Ordering
1.21.0 · sourcefn max(self, other: Self) -> Self
fn max(self, other: Self) -> Self
1.21.0 · sourcefn min(self, other: Self) -> Self
fn min(self, other: Self) -> Self
1.50.0 · sourcefn clamp(self, min: Self, max: Self) -> Selfwhere
Self: PartialOrd<Self>,
fn clamp(self, min: Self, max: Self) -> Selfwhere
Self: PartialOrd<Self>,
sourceimpl PartialEq<StableCrateId> for StableCrateId
impl PartialEq<StableCrateId> for StableCrateId
sourcefn eq(&self, other: &StableCrateId) -> bool
fn eq(&self, other: &StableCrateId) -> bool
sourceimpl PartialOrd<StableCrateId> for StableCrateId
impl PartialOrd<StableCrateId> for StableCrateId
sourcefn partial_cmp(&self, other: &StableCrateId) -> Option<Ordering>
fn partial_cmp(&self, other: &StableCrateId) -> Option<Ordering>
1.0.0 · sourcefn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
self
and other
) and is used by the <=
operator. Read moreimpl Copy for StableCrateId
impl Eq for StableCrateId
impl StructuralEq for StableCrateId
impl StructuralPartialEq for StableCrateId
Auto Trait Implementations
impl RefUnwindSafe for StableCrateId
impl Send for StableCrateId
impl Sync for StableCrateId
impl Unpin for StableCrateId
impl UnwindSafe for StableCrateId
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
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