[−][src]Struct rustc_middle::ty::CrateVariancesMap
The crate variances map is computed during typeck and contains the
variance of every item in the local crate. You should not use it
directly, because to do so will make your pass dependent on the
HIR of every item in the local crate. Instead, use
tcx.variances_of() to get the variance for a particular
item.
Fields
variances: FxHashMap<DefId, &'tcx [Variance]>For each item with generics, maps to a vector of the variance of its generics. If an item has no generics, it will have no entry.
Trait Implementations
impl<'tcx, '__ctx> HashStable<StableHashingContext<'__ctx>> for CrateVariancesMap<'tcx>[src]
pub fn hash_stable(
&self,
__hcx: &mut StableHashingContext<'__ctx>,
__hasher: &mut StableHasher
)[src]
&self,
__hcx: &mut StableHashingContext<'__ctx>,
__hasher: &mut StableHasher
)
Auto Trait Implementations
impl<'tcx> RefUnwindSafe for CrateVariancesMap<'tcx>
impl<'tcx> Send for CrateVariancesMap<'tcx>
impl<'tcx> Sync for CrateVariancesMap<'tcx>
impl<'tcx> Unpin for CrateVariancesMap<'tcx>
impl<'tcx> UnwindSafe for CrateVariancesMap<'tcx>
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized, [src]
T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized, [src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T[src]
impl<'a, T> Captures<'a> for T where
T: ?Sized, [src]
T: ?Sized,
impl<T> From<T> for T[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
U: From<T>,
impl<T> MaybeResult<T> for T[src]
type Error = !
pub fn from(Result<T, <T as MaybeResult<T>>::Error>) -> T[src]
pub fn to_result(self) -> Result<T, <T as MaybeResult<T>>::Error>[src]
impl<T, U> TryFrom<U> for T where
U: Into<T>, [src]
U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>, [src]
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.