pub enum ProbeKind<I>where
I: Interner,{
Root {
result: Result<Canonical<I, Response<I>>, NoSolution>,
},
TryNormalizeNonRigid {
result: Result<Canonical<I, Response<I>>, NoSolution>,
},
NormalizedSelfTyAssembly,
TraitCandidate {
source: CandidateSource<I>,
result: Result<Canonical<I, Response<I>>, NoSolution>,
},
UnsizeAssembly,
UpcastProjectionCompatibility,
ShadowedEnvProbing,
OpaqueTypeStorageLookup {
result: Result<Canonical<I, Response<I>>, NoSolution>,
},
}
Expand description
What kind of probe we’re in. In case the probe represents a candidate, or the final result of the current goal - via ProbeKind::Root - we also store the QueryResult.
Variants§
Root
The root inference context while proving a goal.
Fields
result: Result<Canonical<I, Response<I>>, NoSolution>
TryNormalizeNonRigid
Trying to normalize an alias by at least one step in NormalizesTo
.
Fields
result: Result<Canonical<I, Response<I>>, NoSolution>
NormalizedSelfTyAssembly
Probe entered when normalizing the self ty during candidate assembly
TraitCandidate
A candidate for proving a trait or alias-relate goal.
UnsizeAssembly
Used in the probe that wraps normalizing the non-self type for the unsize trait, which is also structurally matched on.
UpcastProjectionCompatibility
During upcasting from some source object to target object type, used to do a probe to find out what projection type(s) may be used to prove that the source type upholds all of the target type’s object bounds.
ShadowedEnvProbing
Looking for param-env candidates that satisfy the trait ref for a projection.
OpaqueTypeStorageLookup
Try to unify an opaque type with an existing key in the storage.
Fields
result: Result<Canonical<I, Response<I>>, NoSolution>
Trait Implementations§
source§impl<I> TypeFoldable<I> for ProbeKind<I>where
I: Interner,
Result<Canonical<I, Response<I>>, NoSolution>: TypeFoldable<I>,
CandidateSource<I>: TypeFoldable<I>,
impl<I> TypeFoldable<I> for ProbeKind<I>where
I: Interner,
Result<Canonical<I, Response<I>>, NoSolution>: TypeFoldable<I>,
CandidateSource<I>: TypeFoldable<I>,
source§fn try_fold_with<__F>(
self,
__folder: &mut __F,
) -> Result<ProbeKind<I>, <__F as FallibleTypeFolder<I>>::Error>where
__F: FallibleTypeFolder<I>,
fn try_fold_with<__F>(
self,
__folder: &mut __F,
) -> Result<ProbeKind<I>, <__F as FallibleTypeFolder<I>>::Error>where
__F: FallibleTypeFolder<I>,
source§fn fold_with<F>(self, folder: &mut F) -> Selfwhere
F: TypeFolder<I>,
fn fold_with<F>(self, folder: &mut F) -> Selfwhere
F: TypeFolder<I>,
try_fold_with
for use with infallible
folders. Do not override this method, to ensure coherence with
try_fold_with
.source§impl<I> TypeVisitable<I> for ProbeKind<I>where
I: Interner,
Result<Canonical<I, Response<I>>, NoSolution>: TypeVisitable<I>,
CandidateSource<I>: TypeVisitable<I>,
impl<I> TypeVisitable<I> for ProbeKind<I>where
I: Interner,
Result<Canonical<I, Response<I>>, NoSolution>: TypeVisitable<I>,
CandidateSource<I>: TypeVisitable<I>,
source§fn visit_with<__V>(
&self,
__visitor: &mut __V,
) -> <__V as TypeVisitor<I>>::Resultwhere
__V: TypeVisitor<I>,
fn visit_with<__V>(
&self,
__visitor: &mut __V,
) -> <__V as TypeVisitor<I>>::Resultwhere
__V: TypeVisitor<I>,
impl<I> Copy for ProbeKind<I>where
I: Interner,
impl<I> Eq for ProbeKind<I>where
I: Interner,
Auto Trait Implementations§
impl<I> Freeze for ProbeKind<I>where
<I as Interner>::DefId: Freeze,
<I as Interner>::DefiningOpaqueTypes: Freeze,
<I as Interner>::CanonicalVars: Freeze,
<I as Interner>::ExternalConstraints: Freeze,
<I as Interner>::GenericArgs: Freeze,
impl<I> RefUnwindSafe for ProbeKind<I>where
<I as Interner>::DefId: RefUnwindSafe,
<I as Interner>::DefiningOpaqueTypes: RefUnwindSafe,
<I as Interner>::CanonicalVars: RefUnwindSafe,
<I as Interner>::ExternalConstraints: RefUnwindSafe,
<I as Interner>::GenericArgs: RefUnwindSafe,
impl<I> Send for ProbeKind<I>where
<I as Interner>::DefId: Send,
<I as Interner>::DefiningOpaqueTypes: Send,
<I as Interner>::CanonicalVars: Send,
<I as Interner>::ExternalConstraints: Send,
<I as Interner>::GenericArgs: Send,
impl<I> Sync for ProbeKind<I>where
<I as Interner>::DefId: Sync,
<I as Interner>::DefiningOpaqueTypes: Sync,
<I as Interner>::CanonicalVars: Sync,
<I as Interner>::ExternalConstraints: Sync,
<I as Interner>::GenericArgs: Sync,
impl<I> Unpin for ProbeKind<I>where
<I as Interner>::DefId: Unpin,
<I as Interner>::DefiningOpaqueTypes: Unpin,
<I as Interner>::CanonicalVars: Unpin,
<I as Interner>::ExternalConstraints: Unpin,
<I as Interner>::GenericArgs: Unpin,
impl<I> UnwindSafe for ProbeKind<I>where
<I as Interner>::DefId: UnwindSafe,
<I as Interner>::DefiningOpaqueTypes: UnwindSafe,
<I as Interner>::CanonicalVars: UnwindSafe,
<I as Interner>::ExternalConstraints: UnwindSafe,
<I as Interner>::GenericArgs: UnwindSafe,
Blanket Implementations§
source§impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut T
fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T>, ) -> &'a mut [T]
source§impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut T
fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T>, ) -> &'a mut [T]
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§unsafe fn clone_to_uninit(&self, dst: *mut T)
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<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.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: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.