Enum BoundConstness

pub enum BoundConstness {
    Const,
    Maybe,
}

Variants

Const

Type: const Trait

A bound is required to be unconditionally const, even in a runtime function.

Maybe

Type: ~const Trait

Requires resolving to const only when we are in a const context.

Implementations

impl BoundConstness

pub fn satisfies(self, goal: BoundConstness) -> bool

pub fn as_str(self) -> &'static str

Trait Implementations

impl Clone for BoundConstness

fn clone(&self) -> BoundConstness

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for BoundConstness

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

Formats the value using the given formatter.

impl<__D: TyDecoder> Decodable<__D> for BoundConstness

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

impl Display for BoundConstness

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

Formats the value using the given formatter.

impl<__E: TyEncoder> Encodable<__E> for BoundConstness

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

impl Hash for BoundConstness

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 BoundConstness

fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)

impl PartialEq for BoundConstness

fn eq(&self, other: &BoundConstness) -> bool

Tests for self and other values to be equal, and is used by ==.

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

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

impl<I: Interner> TypeFoldable<I> for BoundConstness

fn try_fold_with<F: FallibleTypeFolder<I>>( self, _: &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: TypeFolder<I>>(self, _: &mut F) -> Self

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<I: Interner> TypeVisitable<I> for BoundConstness

fn visit_with<F: TypeVisitor<I>>(&self, _: &mut F) -> F::Result

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

impl Copy for BoundConstness

impl Eq for BoundConstness

impl StructuralPartialEq for BoundConstness

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: 1 byte

Size for each variant:

• Const: 0 bytes
• Maybe: 0 bytes