Enum rustc_infer::traits::engine::ScrubbedTraitError
source · pub enum ScrubbedTraitError<'tcx> {
TrueError,
Ambiguity,
Cycle(Vec<PredicateObligation<'tcx>>),
}
Expand description
A trait error with most of its information removed. This is the error
returned by an ObligationCtxt
by default, and suitable if you just
want to see if a predicate holds, and don’t particularly care about the
error itself (except for if it’s an ambiguity or true error).
use ObligationCtxt::new_with_diagnostics
to get a FulfillmentError
.
Variants§
TrueError
A real error. This goal definitely does not hold.
Ambiguity
An ambiguity. This goal may hold if further inference is done.
Cycle(Vec<PredicateObligation<'tcx>>)
An old-solver-style cycle error, which will fatal.
Implementations§
source§impl<'tcx> ScrubbedTraitError<'tcx>
impl<'tcx> ScrubbedTraitError<'tcx>
pub fn is_true_error(&self) -> bool
Trait Implementations§
source§impl<'tcx> Clone for ScrubbedTraitError<'tcx>
impl<'tcx> Clone for ScrubbedTraitError<'tcx>
source§fn clone(&self) -> ScrubbedTraitError<'tcx>
fn clone(&self) -> ScrubbedTraitError<'tcx>
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moreAuto Trait Implementations§
impl<'tcx> Freeze for ScrubbedTraitError<'tcx>
impl<'tcx> !RefUnwindSafe for ScrubbedTraitError<'tcx>
impl<'tcx> !Send for ScrubbedTraitError<'tcx>
impl<'tcx> !Sync for ScrubbedTraitError<'tcx>
impl<'tcx> Unpin for ScrubbedTraitError<'tcx>
impl<'tcx> !UnwindSafe for ScrubbedTraitError<'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§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<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: 24 bytes
Size for each variant:
TrueError
: 0 bytesAmbiguity
: 0 bytesCycle
: 24 bytes