Struct rustc_trait_selection::solve::fulfill::BestObligation
source · struct BestObligation<'tcx> {
obligation: PredicateObligation<'tcx>,
consider_ambiguities: bool,
}
Fields§
§obligation: PredicateObligation<'tcx>
§consider_ambiguities: bool
Implementations§
source§impl<'tcx> BestObligation<'tcx>
impl<'tcx> BestObligation<'tcx>
fn with_derived_obligation( &mut self, derived_obligation: PredicateObligation<'tcx>, and_then: impl FnOnce(&mut Self) -> ControlFlow<Obligation<'tcx, Predicate<'tcx>>>, ) -> ControlFlow<Obligation<'tcx, Predicate<'tcx>>>
sourcefn non_trivial_candidates<'a>(
&self,
goal: &'a InspectGoal<'a, 'tcx>,
) -> Vec<InspectCandidate<'a, 'tcx>>
fn non_trivial_candidates<'a>( &self, goal: &'a InspectGoal<'a, 'tcx>, ) -> Vec<InspectCandidate<'a, 'tcx>>
Filter out the candidates that aren’t interesting to visit for the purposes of reporting errors. For ambiguities, we only consider candidates that may hold. For errors, we only consider candidates that don’t hold and which have impl-where clauses that also don’t hold.
Trait Implementations§
source§impl<'tcx> ProofTreeVisitor<'tcx> for BestObligation<'tcx>
impl<'tcx> ProofTreeVisitor<'tcx> for BestObligation<'tcx>
type Result = ControlFlow<Obligation<'tcx, Predicate<'tcx>>>
fn span(&self) -> Span
fn visit_goal(&mut self, goal: &InspectGoal<'_, 'tcx>) -> Self::Result
fn config(&self) -> InspectConfig
Auto Trait Implementations§
impl<'tcx> Freeze for BestObligation<'tcx>
impl<'tcx> !RefUnwindSafe for BestObligation<'tcx>
impl<'tcx> !Send for BestObligation<'tcx>
impl<'tcx> !Sync for BestObligation<'tcx>
impl<'tcx> Unpin for BestObligation<'tcx>
impl<'tcx> !UnwindSafe for BestObligation<'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: 56 bytes