Enum rustc_middle::ty::InferConst

pub enum InferConst<'tcx> {
    Var(ConstVid<'tcx>),
    EffectVar(EffectVid<'tcx>),
    Fresh(u32),
}

An inference variable for a const, for use in const generics.

Variants

Var(ConstVid<'tcx>)

Infer the value of the const.

EffectVar(EffectVid<'tcx>)

Infer the value of the effect.

For why this is separate from the Var variant above, see the documentation on EffectVid.

Fresh(u32)

A fresh const variable. See infer::freshen for more details.

Trait Implementations

impl<'tcx> Clone for InferConst<'tcx>

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'tcx> Debug for InferConst<'tcx>

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

Formats the value using the given formatter.

impl<'tcx> DebugWithInfcx<TyCtxt<'tcx>> for InferConst<'tcx>

fn fmt<InfCtx: InferCtxtLike<TyCtxt<'tcx>>>( this: OptWithInfcx<'_, TyCtxt<'tcx>, InfCtx, &Self>, f: &mut Formatter<'_> ) -> Result

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

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

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

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

impl<'tcx> Hash for InferConst<'tcx>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<CTX> HashStable<CTX> for InferConst<'_>

fn hash_stable(&self, hcx: &mut CTX, hasher: &mut StableHasher)

impl<'tcx> Ord for InferConst<'tcx>

fn cmp(&self, other: &InferConst<'tcx>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl<'tcx> PartialEq<InferConst<'tcx>> for InferConst<'tcx>

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'tcx> PartialOrd<InferConst<'tcx>> for InferConst<'tcx>

fn partial_cmp(&self, other: &InferConst<'tcx>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<'tcx> TypeFoldable<TyCtxt<'tcx>> for InferConst<'tcx>

fn try_fold_with<F: FallibleTypeFolder<TyCtxt<'tcx>>>( self, _folder: &mut F ) -> Result<Self, F::Error>

The entry point for folding. To fold a value t with a folder f call: t.try_fold_with(f).

fn fold_with<F>(self, folder: &mut F) -> Selfwhere F: TypeFolder<I>,

A convenient alternative to try_fold_with for use with infallible folders. Do not override this method, to ensure coherence with try_fold_with.

impl<'tcx> TypeVisitable<TyCtxt<'tcx>> for InferConst<'tcx>

fn visit_with<V: TypeVisitor<TyCtxt<'tcx>>>( &self, _visitor: &mut V ) -> ControlFlow<V::BreakTy>

The entry point for visiting. To visit a value t with a visitor v call: t.visit_with(v).

impl<'tcx> Copy for InferConst<'tcx>

impl<'tcx> Eq for InferConst<'tcx>

impl<'tcx> StructuralEq for InferConst<'tcx>

impl<'tcx> StructuralPartialEq for InferConst<'tcx>

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: 8 bytes

Size for each variant:

• Var: 4 bytes
• EffectVar: 4 bytes
• Fresh: 4 bytes