Struct rustc_trait_selection::infer::canonical::OriginalQueryValues
source · pub struct OriginalQueryValues<'tcx> {
pub universe_map: SmallVec<[UniverseIndex; 4]>,
pub var_values: SmallVec<[GenericArg<'tcx>; 8]>,
}
Expand description
When we canonicalize a value to form a query, we wind up replacing various parts of it with canonical variables. This struct stores those replaced bits to remember for when we process the query result.
Fields§
§universe_map: SmallVec<[UniverseIndex; 4]>
Map from the universes that appear in the query to the universes in the
caller context. For all queries except evaluate_goal
(used by Chalk),
we only ever put ROOT values into the query, so this map is very
simple.
var_values: SmallVec<[GenericArg<'tcx>; 8]>
This is equivalent to CanonicalVarValues
, but using a
SmallVec
yields a significant performance win.
Trait Implementations§
source§impl<'tcx> Clone for OriginalQueryValues<'tcx>
impl<'tcx> Clone for OriginalQueryValues<'tcx>
source§fn clone(&self) -> OriginalQueryValues<'tcx>
fn clone(&self) -> OriginalQueryValues<'tcx>
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl<'tcx> Debug for OriginalQueryValues<'tcx>
impl<'tcx> Debug for OriginalQueryValues<'tcx>
source§impl<'tcx> Default for OriginalQueryValues<'tcx>
impl<'tcx> Default for OriginalQueryValues<'tcx>
source§fn default() -> OriginalQueryValues<'tcx>
fn default() -> OriginalQueryValues<'tcx>
Auto Trait Implementations§
impl<'tcx> Freeze for OriginalQueryValues<'tcx>
impl<'tcx> !RefUnwindSafe for OriginalQueryValues<'tcx>
impl<'tcx> Send for OriginalQueryValues<'tcx>
impl<'tcx> Sync for OriginalQueryValues<'tcx>
impl<'tcx> Unpin for OriginalQueryValues<'tcx>
impl<'tcx> !UnwindSafe for OriginalQueryValues<'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
source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§default unsafe fn clone_to_uninit(&self, dst: *mut T)
default unsafe fn clone_to_uninit(&self, dst: *mut T)
clone_to_uninit
)source§impl<T, R> CollectAndApply<T, R> for T
impl<T, R> CollectAndApply<T, R> for T
source§impl<T> Filterable for T
impl<T> Filterable for T
source§fn filterable(
self,
filter_name: &'static str,
) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>
fn filterable( self, filter_name: &'static str, ) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>
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<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
source§impl<I, T, U> Upcast<I, U> for Twhere
U: UpcastFrom<I, T>,
impl<I, T, U> Upcast<I, U> for Twhere
U: UpcastFrom<I, T>,
source§impl<I, T> UpcastFrom<I, T> for T
impl<I, T> UpcastFrom<I, T> for T
fn upcast_from(from: T, _tcx: I) -> 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,
impl<T> MaybeSendSync for 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: 96 bytes