Struct rustc_attr::builtin::ConstStability

pub struct ConstStability {
    pub level: StabilityLevel,
    pub feature: Symbol,
    pub promotable: bool,
}

Represents the #[rustc_const_unstable] and #[rustc_const_stable] attributes.

Fields

level: StabilityLevel

feature: Symbol

promotable: bool

whether the function has a #[rustc_promotable] attribute

Trait Implementations

impl Clone for ConstStability

fn clone(&self) -> ConstStability

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ConstStability

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

Formats the value using the given formatter.

impl<__D: Decoder> Decodable<__D> for ConstStability

fn decode(__decoder: &mut __D) -> Result<Self, <__D as Decoder>::Error>

impl<__E: Encoder> Encodable<__E> for ConstStability

fn encode(&self, __encoder: &mut __E) -> Result<(), <__E as Encoder>::Error>

impl Hash for ConstStability

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, 

Feeds a slice of this type into the given Hasher.

impl<__CTX> HashStable<__CTX> for ConstStability where
    __CTX: HashStableContext, 

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

impl PartialEq<ConstStability> for ConstStability

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

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

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

This method tests for !=.

impl Copy for ConstStability

impl Eq for ConstStability

impl StructuralEq for ConstStability

impl StructuralPartialEq for ConstStability