Enum rustc_hir_typeck::cast::CastError
source · pub enum CastError {
Show 15 variants
ErrorGuaranteed(ErrorGuaranteed),
CastToBool,
CastToChar,
DifferingKinds,
SizedUnsizedCast,
IllegalCast,
NeedDeref,
NeedViaPtr,
NeedViaThinPtr,
NeedViaInt,
NonScalar,
UnknownExprPtrKind,
UnknownCastPtrKind,
IntToFatCast(Option<&'static str>),
ForeignNonExhaustiveAdt,
}
Variants§
ErrorGuaranteed(ErrorGuaranteed)
CastToBool
CastToChar
DifferingKinds
SizedUnsizedCast
Cast of thin to fat raw ptr (e.g., *const () as *const [u8]
).
IllegalCast
NeedDeref
NeedViaPtr
NeedViaThinPtr
NeedViaInt
NonScalar
UnknownExprPtrKind
UnknownCastPtrKind
IntToFatCast(Option<&'static str>)
Cast of int to (possibly) fat raw pointer.
Argument is the specific name of the metadata in plain words, such as “a vtable” or “a length”. If this argument is None, then the metadata is unknown, for example, when we’re typechecking a type parameter with a ?Sized bound.
ForeignNonExhaustiveAdt
Trait Implementations§
source§impl From<ErrorGuaranteed> for CastError
impl From<ErrorGuaranteed> for CastError
source§fn from(err: ErrorGuaranteed) -> Self
fn from(err: ErrorGuaranteed) -> Self
Converts to this type from the input type.
impl Copy for CastError
Auto Trait Implementations§
impl Freeze for CastError
impl RefUnwindSafe for CastError
impl Send for CastError
impl Sync for CastError
impl Unpin for CastError
impl UnwindSafe for CastError
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
Mutably borrows from an owned value. Read more
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)
🔬This is a nightly-only experimental API. (
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>
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: 24 bytes
Size for each variant:
ErrorGuaranteed
: 0 bytesCastToBool
: 0 bytesCastToChar
: 0 bytesDifferingKinds
: 0 bytesSizedUnsizedCast
: 0 bytesIllegalCast
: 0 bytesNeedDeref
: 0 bytesNeedViaPtr
: 0 bytesNeedViaThinPtr
: 0 bytesNeedViaInt
: 0 bytesNonScalar
: 0 bytesUnknownExprPtrKind
: 0 bytesUnknownCastPtrKind
: 0 bytesIntToFatCast
: 16 bytesForeignNonExhaustiveAdt
: 0 bytes