Struct rustc_middle::infer::canonical::CanonicalParamEnvCache
source · pub struct CanonicalParamEnvCache<'tcx> {
map: Lock<FxHashMap<ParamEnv<'tcx>, (Canonical<'tcx, ParamEnv<'tcx>>, &'tcx [GenericArg<'tcx>])>>,
}Fields§
§map: Lock<FxHashMap<ParamEnv<'tcx>, (Canonical<'tcx, ParamEnv<'tcx>>, &'tcx [GenericArg<'tcx>])>>Implementations§
source§impl<'tcx> CanonicalParamEnvCache<'tcx>
impl<'tcx> CanonicalParamEnvCache<'tcx>
sourcepub fn get_or_insert(
&self,
tcx: TyCtxt<'tcx>,
key: ParamEnv<'tcx>,
state: &mut OriginalQueryValues<'tcx>,
canonicalize_op: fn(_: TyCtxt<'tcx>, _: ParamEnv<'tcx>, _: &mut OriginalQueryValues<'tcx>) -> Canonical<'tcx, ParamEnv<'tcx>>
) -> Canonical<'tcx, ParamEnv<'tcx>>
pub fn get_or_insert( &self, tcx: TyCtxt<'tcx>, key: ParamEnv<'tcx>, state: &mut OriginalQueryValues<'tcx>, canonicalize_op: fn(_: TyCtxt<'tcx>, _: ParamEnv<'tcx>, _: &mut OriginalQueryValues<'tcx>) -> Canonical<'tcx, ParamEnv<'tcx>> ) -> Canonical<'tcx, ParamEnv<'tcx>>
Gets the cached canonical form of key or executes
canonicalize_op and caches the result if not present.
canonicalize_op is intentionally not allowed to be a closure to
statically prevent it from capturing InferCtxt and resolving
inference variables, which invalidates the cache.
Trait Implementations§
source§impl<'tcx> Default for CanonicalParamEnvCache<'tcx>
impl<'tcx> Default for CanonicalParamEnvCache<'tcx>
source§fn default() -> CanonicalParamEnvCache<'tcx>
fn default() -> CanonicalParamEnvCache<'tcx>
Returns the “default value” for a type. Read more
Auto Trait Implementations§
impl<'tcx> DynSend for CanonicalParamEnvCache<'tcx>
impl<'tcx> DynSync for CanonicalParamEnvCache<'tcx>
impl<'tcx> !Freeze for CanonicalParamEnvCache<'tcx>
impl<'tcx> !RefUnwindSafe for CanonicalParamEnvCache<'tcx>
impl<'tcx> Send for CanonicalParamEnvCache<'tcx>
impl<'tcx> !Sync for CanonicalParamEnvCache<'tcx>
impl<'tcx> Unpin for CanonicalParamEnvCache<'tcx>
impl<'tcx> !UnwindSafe for CanonicalParamEnvCache<'tcx>
Blanket Implementations§
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
Mutably borrows from an owned value. Read more
source§impl<T, R> CollectAndApply<T, R> for T
impl<T, R> CollectAndApply<T, R> for T
§impl<T> Filterable for T
impl<T> Filterable for T
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<P> IntoQueryParam<P> for P
impl<P> IntoQueryParam<P> for P
fn into_query_param(self) -> P
source§impl<T> MaybeResult<T> for T
impl<T> MaybeResult<T> for T
§impl<T> Pointable for T
impl<T> Pointable for T
source§impl<'tcx, T> ToPredicate<'tcx, T> for T
impl<'tcx, T> ToPredicate<'tcx, T> for T
fn to_predicate(self, _tcx: TyCtxt<'tcx>) -> T
source§impl<Tcx, T> Value<Tcx> for Twhere
Tcx: DepContext,
impl<Tcx, T> Value<Tcx> for Twhere
Tcx: DepContext,
default fn from_cycle_error( tcx: Tcx, cycle_error: &CycleError, _guar: ErrorGuaranteed ) -> 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,
impl<T> ErasedDestructor for Twhere
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: 40 bytes