Struct rustc_borrowck::type_check::InstantiateOpaqueType
source · pub(crate) struct InstantiateOpaqueType<'tcx> {
pub base_universe: Option<UniverseIndex>,
pub region_constraints: Option<RegionConstraintData<'tcx>>,
pub obligations: Vec<PredicateObligation<'tcx>>,
}
Expand description
Runs infcx.instantiate_opaque_types
. Unlike other TypeOp
s,
this is not canonicalized - it directly affects the main InferCtxt
that we use during MIR borrowchecking.
Fields§
§base_universe: Option<UniverseIndex>
§region_constraints: Option<RegionConstraintData<'tcx>>
§obligations: Vec<PredicateObligation<'tcx>>
Trait Implementations§
source§impl<'tcx> Debug for InstantiateOpaqueType<'tcx>
impl<'tcx> Debug for InstantiateOpaqueType<'tcx>
source§impl<'tcx> ToUniverseInfo<'tcx> for InstantiateOpaqueType<'tcx>
impl<'tcx> ToUniverseInfo<'tcx> for InstantiateOpaqueType<'tcx>
fn to_universe_info(self, base_universe: UniverseIndex) -> UniverseInfo<'tcx>
source§impl<'tcx> TypeOp<'tcx> for InstantiateOpaqueType<'tcx>
impl<'tcx> TypeOp<'tcx> for InstantiateOpaqueType<'tcx>
source§type ErrorInfo = InstantiateOpaqueType<'tcx>
type ErrorInfo = InstantiateOpaqueType<'tcx>
We use this type itself to store the information used
when reporting errors. Since this is not a query, we don’t
re-run anything during error reporting - we just use the information
we saved to help extract an error from the already-existing region
constraints in our InferCtxt
type Output = ()
source§fn fully_perform(
self,
infcx: &InferCtxt<'tcx>,
span: Span,
) -> Result<TypeOpOutput<'tcx, Self>, ErrorGuaranteed>
fn fully_perform( self, infcx: &InferCtxt<'tcx>, span: Span, ) -> Result<TypeOpOutput<'tcx, Self>, ErrorGuaranteed>
Processes the operation and all resulting obligations,
returning the final result along with any region constraints
(they will be given over to the NLL region solver).
source§impl<'tcx> TypeOpInfo<'tcx> for InstantiateOpaqueType<'tcx>
impl<'tcx> TypeOpInfo<'tcx> for InstantiateOpaqueType<'tcx>
source§fn fallback_error(&self, tcx: TyCtxt<'tcx>, span: Span) -> Diag<'tcx>
fn fallback_error(&self, tcx: TyCtxt<'tcx>, span: Span) -> Diag<'tcx>
Returns an error to be reported if rerunning the type op fails to
recover the error’s cause.
fn base_universe(&self) -> UniverseIndex
fn nice_error<'infcx>( &self, mbcx: &mut MirBorrowckCtxt<'_, '_, 'infcx, 'tcx>, _cause: ObligationCause<'tcx>, placeholder_region: Region<'tcx>, error_region: Option<Region<'tcx>>, ) -> Option<Diag<'infcx>>
fn report_error( &self, mbcx: &mut MirBorrowckCtxt<'_, '_, '_, 'tcx>, placeholder: PlaceholderRegion, error_element: RegionElement, cause: ObligationCause<'tcx>, )
Auto Trait Implementations§
impl<'tcx> Freeze for InstantiateOpaqueType<'tcx>
impl<'tcx> !RefUnwindSafe for InstantiateOpaqueType<'tcx>
impl<'tcx> !Send for InstantiateOpaqueType<'tcx>
impl<'tcx> !Sync for InstantiateOpaqueType<'tcx>
impl<'tcx> Unpin for InstantiateOpaqueType<'tcx>
impl<'tcx> !UnwindSafe for InstantiateOpaqueType<'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
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>
Creates a filterable data provider with the given name for debugging. Read more
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>
Converts
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>
Converts
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: 104 bytes