Enum rustc_hir::hir::TraitBoundModifier

pub enum TraitBoundModifier {
    None,
    Negative,
    Maybe,
    MaybeConst,
}

A modifier on a bound, currently this is only used for ?Sized, where the modifier is Maybe. Negative bounds should also be handled here.

Variants

None

Negative

Maybe

MaybeConst

Trait Implementations

impl Clone for TraitBoundModifier

fn clone(&self) -> TraitBoundModifier

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for TraitBoundModifier

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

Formats the value using the given formatter.

impl Hash for TraitBoundModifier

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 TraitBoundModifierwhere __CTX: HashStableContext,

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

impl PartialEq<TraitBoundModifier> for TraitBoundModifier

fn eq(&self, other: &TraitBoundModifier) -> 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 Copy for TraitBoundModifier

impl Eq for TraitBoundModifier

impl StructuralEq for TraitBoundModifier

impl StructuralPartialEq for TraitBoundModifier

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:

• None: 0 bytes
• Negative: 0 bytes
• Maybe: 0 bytes
• MaybeConst: 0 bytes