Struct rustc_middle::mir::VarBindingForm

source ·

pub struct VarBindingForm<'tcx> {
    pub binding_mode: BindingMode,
    pub opt_ty_info: Option<Span>,
    pub opt_match_place: Option<(Option<Place<'tcx>>, Span)>,
    pub pat_span: Span,
}

Fields§

§binding_mode: BindingMode

Is variable bound via x, mut x, ref x, or ref mut x?

§opt_ty_info: Option

If an explicit type was provided for this variable binding, this holds the source Span of that type.

NOTE: if you want to change this to a HirId, be wary that doing so breaks incremental compilation (as of this writing), while a Span does not cause our tests to fail.

§opt_match_place: Option<(Option<Place<'tcx>>, Span)>

Place of the RHS of the =, or the subject of the match where this variable is initialized. None in the case of let PATTERN;. Some((None, ..)) in the case of and let [mut] x = ... because (a) the right-hand side isn’t evaluated as a place expression. (b) it gives a way to separate this case from the remaining cases for diagnostics.

§pat_span: Span

The span of the pattern in which this variable was bound.

Struct rustc_middle::mir::VarBindingForm

Fields§

Trait Implementations§

impl<'tcx> Clone for VarBindingForm<'tcx>

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

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

impl<'tcx> Debug for VarBindingForm<'tcx>

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

impl<'tcx, __D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<__D> for VarBindingForm<'tcx>

fn decode(__decoder: &mut __D) -> Self

impl<'tcx, __E: TyEncoder<I = TyCtxt<'tcx>>> Encodable<__E> for VarBindingForm<'tcx>

fn encode(&self, __encoder: &mut __E)

impl<'tcx, '__ctx> HashStable<StableHashingContext<'__ctx>> for VarBindingForm<'tcx>

fn hash_stable( &self, __hcx: &mut StableHashingContext<'__ctx>, __hasher: &mut StableHasher )

Auto Trait Implementations§

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

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

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

impl<'tcx> Unpin for VarBindingForm<'tcx>

impl<'tcx> !UnwindSafe for VarBindingForm<'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<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<Tcx, T> DepNodeParams<Tcx> for Twhere Tcx: DepContext, T: for<'a> HashStable<StableHashingContext<'a>> + Debug,

default fn fingerprint_style() -> FingerprintStyle

default fn to_fingerprint(&self, tcx: Tcx) -> Fingerprint

default fn to_debug_str(&self, _: Tcx) -> String

default fn recover(_: Tcx, _: &DepNode) -> Option<T>

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§

impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<D> for VarBindingForm<'tcx>

fn decode(decoder: &mut D) -> Self

impl<'tcx, E: TyEncoder<I = TyCtxt<'tcx>>> Encodable<E> for VarBindingForm<'tcx>

fn encode(&self, encoder: &mut E)

impl<'tcx, 'ctx> HashStable<StableHashingContext<'ctx>> for VarBindingForm<'tcx>

fn hash_stable( &self, hcx: &mut StableHashingContext<'ctx>, __hasher: &mut StableHasher )