[−][src]Struct rustc::ty::query::queries::variances_of
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Fields
data: PhantomData<&'tcx ()>
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Methods
impl<'a, 'tcx, 'lcx> variances_of<'tcx>
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impl<'a, 'tcx, 'lcx> variances_of<'tcx>
pub fn ensure(tcx: TyCtxt<'a, 'tcx, 'lcx>, key: DefId)
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pub fn ensure(tcx: TyCtxt<'a, 'tcx, 'lcx>, key: DefId)
🔬 This is a nightly-only experimental API. (rustc_private
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Ensure that either this query has all green inputs or been executed. Executing query::ensure(D) is considered a read of the dep-node D.
This function is particularly useful when executing passes for their side-effects -- e.g., in order to report errors for erroneous programs.
Note: The optimization is only available during incr. comp.
Trait Implementations
impl<'tcx> QueryConfig<'tcx> for variances_of<'tcx>
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impl<'tcx> QueryConfig<'tcx> for variances_of<'tcx>
type Key = DefId
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type Value = Lrc<Vec<Variance>>
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const NAME: &'static str
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const CATEGORY: ProfileCategory
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impl<'tcx> QueryAccessors<'tcx> for variances_of<'tcx>
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impl<'tcx> QueryAccessors<'tcx> for variances_of<'tcx>
fn query(key: Self::Key) -> Query<'tcx>
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fn query(key: Self::Key) -> Query<'tcx>
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fn query_cache<'a>(
tcx: TyCtxt<'a, 'tcx, '_>
) -> &'a Lock<QueryCache<'tcx, Self>>
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fn query_cache<'a>(
tcx: TyCtxt<'a, 'tcx, '_>
) -> &'a Lock<QueryCache<'tcx, Self>>
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fn to_dep_node(tcx: TyCtxt<'_, 'tcx, '_>, key: &Self::Key) -> DepNode
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fn to_dep_node(tcx: TyCtxt<'_, 'tcx, '_>, key: &Self::Key) -> DepNode
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fn compute(tcx: TyCtxt<'_, 'tcx, '_>, key: Self::Key) -> Self::Value
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fn compute(tcx: TyCtxt<'_, 'tcx, '_>, key: Self::Key) -> Self::Value
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fn handle_cycle_error(tcx: TyCtxt<'_, 'tcx, '_>) -> Self::Value
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fn handle_cycle_error(tcx: TyCtxt<'_, 'tcx, '_>) -> Self::Value
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Auto Trait Implementations
impl<'tcx> Send for variances_of<'tcx>
impl<'tcx> Send for variances_of<'tcx>
impl<'tcx> Sync for variances_of<'tcx>
impl<'tcx> Sync for variances_of<'tcx>
Blanket Implementations
impl<T> MaybeResult for T
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impl<T> MaybeResult for T
fn from_ok(T) -> T
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fn from_ok(T) -> T
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fn map_same<F>(Self, F) -> T where
F: FnOnce(T) -> T,
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fn map_same<F>(Self, F) -> T where
F: FnOnce(T) -> T,
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impl<'a, T> Captures for T where
T: ?Sized,
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impl<'a, T> Captures for T where
T: ?Sized,
impl<T> From for T
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impl<T> From for T
impl<T, U> Into for T where
U: From<T>,
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impl<T, U> Into for T where
U: From<T>,
impl<T, U> TryFrom for T where
T: From<U>,
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impl<T, U> TryFrom for T where
T: From<U>,
type Error = !
try_from
)The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
try_from
)Performs the conversion.
impl<T> Borrow for T where
T: ?Sized,
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impl<T> Borrow for T where
T: ?Sized,
ⓘImportant traits for &'a mut Rfn borrow(&self) -> &T
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fn borrow(&self) -> &T
Immutably borrows from an owned value. Read more
impl<T, U> TryInto for T where
U: TryFrom<T>,
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impl<T, U> TryInto for T where
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
try_from
)The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
try_from
)Performs the conversion.
impl<T> BorrowMut for T where
T: ?Sized,
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impl<T> BorrowMut for T where
T: ?Sized,
ⓘImportant traits for &'a mut Rfn borrow_mut(&mut self) -> &mut T
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fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<T> Any for T where
T: 'static + ?Sized,
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impl<T> Any for T where
T: 'static + ?Sized,
fn get_type_id(&self) -> TypeId
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fn get_type_id(&self) -> TypeId
🔬 This is a nightly-only experimental API. (get_type_id
)
this method will likely be replaced by an associated static
Gets the TypeId
of self
. Read more
impl<E> SpecializationError for E
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impl<E> SpecializationError for E
fn not_found<S, T>(trait_name: &'static str, method_name: &'static str) -> E where
T: ?Sized,
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fn not_found<S, T>(trait_name: &'static str, method_name: &'static str) -> E where
T: ?Sized,
🔬 This is a nightly-only experimental API. (rustc_private
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Create an error for a missing method specialization. Defaults to panicking with type, trait & method names. S
is the encoder/decoder state type, T
is the type being encoded/decoded, and the arguments are the names of the trait and method that should've been overridden. Read more
impl<T> Erased for T
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impl<T> Erased for T
impl<T> Send for T where
T: ?Sized,
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impl<T> Send for T where
T: ?Sized,
impl<T> Sync for T where
T: ?Sized,
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impl<T> Sync for T where
T: ?Sized,
impl<T> Erased for T
impl<T> Erased for T