Enum rustc_middle::traits::solve::inspect::ProbeKind

source ·

pub enum ProbeKind<'tcx> {
    Root {
        result: QueryResult<'tcx>,
    },
    NormalizedSelfTyAssembly,
    MiscCandidate {
        name: &'static str,
        result: QueryResult<'tcx>,
    },
    TraitCandidate {
        source: CandidateSource,
        result: QueryResult<'tcx>,
    },
    UnsizeAssembly,
    UpcastProjectionCompatibility,
}

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§

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Root

Fields

§result: QueryResult<'tcx>

The root inference context while proving a goal.

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NormalizedSelfTyAssembly

Probe entered when normalizing the self ty during candidate assembly

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MiscCandidate

Fields

§name: &'static str

§result: QueryResult<'tcx>

Some candidate to prove the current goal.

FIXME: Remove this in favor of always using more strongly typed variants.

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TraitCandidate

Fields

§source: CandidateSource

§result: QueryResult<'tcx>

A candidate for proving a trait or alias-relate goal.

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UnsizeAssembly

Used in the probe that wraps normalizing the non-self type for the unsize trait, which is also structurally matched on.

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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.

Enum rustc_middle::traits::solve::inspect::ProbeKind

Variants§

Root

Fields

NormalizedSelfTyAssembly

MiscCandidate

Fields

TraitCandidate

Fields

UnsizeAssembly

UpcastProjectionCompatibility

Trait Implementations§

impl<'tcx> Clone for ProbeKind<'tcx>

fn clone(&self) -> ProbeKind<'tcx>

fn clone_from(&mut self, source: &Self)

impl<'tcx> Debug for ProbeKind<'tcx>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl<'tcx> PartialEq<ProbeKind<'tcx>> for ProbeKind<'tcx>

fn eq(&self, other: &ProbeKind<'tcx>) -> bool

fn ne(&self, other: &Rhs) -> bool

impl<'tcx> Copy for ProbeKind<'tcx>

impl<'tcx> Eq for ProbeKind<'tcx>

impl<'tcx> StructuralEq for ProbeKind<'tcx>

impl<'tcx> StructuralPartialEq for ProbeKind<'tcx>

Auto Trait Implementations§

impl<'tcx> !RefUnwindSafe for ProbeKind<'tcx>

impl<'tcx> !Send for ProbeKind<'tcx>

impl<'tcx> !Sync for ProbeKind<'tcx>

impl<'tcx> Unpin for ProbeKind<'tcx>

impl<'tcx> !UnwindSafe for ProbeKind<'tcx>

Blanket Implementations§

impl<T> Aligned for T

const ALIGN: Alignment = _

impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

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]

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T, R> CollectAndApply<T, R> for T

fn collect_and_apply<I, F>(iter: I, f: F) -> Rwhere I: Iterator<Item = T>, F: FnOnce(&[T]) -> R,

type Output = R

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for Twhere U: From<T>,

fn into(self) -> U

impl<P> IntoQueryParam<P> for P

fn into_query_param(self) -> P

impl<T> MaybeResult<T> for T

type Error = !

fn from(_: Result<T, <T as MaybeResult<T>>::Error>) -> T

fn to_result(self) -> Result<T, <T as MaybeResult<T>>::Error>

impl<T> ToOwned for Twhere T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<'tcx, T> ToPredicate<'tcx, T> for T

fn to_predicate(self, _tcx: TyCtxt<'tcx>) -> T

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<Tcx, T> Value<Tcx> for Twhere Tcx: DepContext,

default fn from_cycle_error( tcx: Tcx, cycle: &[QueryInfo], _guar: ErrorGuaranteed ) -> T

Layout§