Enum BoundConstness 

pub enum BoundConstness {
    Never,
    Always(Span),
    Maybe(Span),
}

The constness of a trait bound.

Variants

Never

Type: Trait

Always(Span)

Type: const Trait

Maybe(Span)

Type: [const] Trait

Implementations

impl BoundConstness

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

Trait Implementations

impl Clone for BoundConstness

fn clone(&self) -> BoundConstness

Returns a duplicate 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: SpanDecoder> Decodable<__D> for BoundConstness

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

impl<__E: SpanEncoder> 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

where __CTX: HashStableContext,

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

impl<V: MutVisitor> MutVisitable<V> for BoundConstness

type Extra = ()

fn visit_mut(&mut self, visitor: &mut V, _extra: Self::Extra) -> V::Result

impl<__V> MutWalkable<__V> for BoundConstness

where __V: MutVisitor,

fn walk_mut(&mut self, __visitor: &mut __V)

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<'a, V: Visitor<'a>> Visitable<'a, V> for BoundConstness

type Extra = ()

fn visit(&'a self, visitor: &mut V, _extra: Self::Extra) -> V::Result

impl<'__ast, __V> Walkable<'__ast, __V> for BoundConstness

where __V: Visitor<'__ast>,

fn walk_ref(&'__ast self, __visitor: &mut __V) -> __V::Result

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: 12 bytes

Size for each variant:

• Never: 0 bytes
• Always: 8 bytes
• Maybe: 8 bytes