Struct syntax::attr::Stability

pub struct Stability {
    pub level: StabilityLevel,
    pub feature: Symbol,
    pub rustc_depr: Option<RustcDeprecation>,
    pub const_stability: Option<Symbol>,
    pub promotable: bool,
    pub allow_const_fn_ptr: bool,
}

Represents the #[stable], #[unstable], #[rustc_{deprecated,const_unstable}] attributes.

Fields

level: StabilityLevel

feature: Symbol

rustc_depr: Option<RustcDeprecation>

const_stability: Option<Symbol>

None means the function is stable but needs to be a stable const fn, too Some contains the feature gate required to be able to use the function as const fn

promotable: bool

whether the function has a #[rustc_promotable] attribute

allow_const_fn_ptr: bool

whether the function has a #[rustc_allow_const_fn_ptr] attribute

Trait Implementations

impl Eq for Stability

impl PartialEq<Stability> for Stability

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

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

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

This method tests for !=.

impl Copy for Stability

impl Clone for Stability

fn clone(&self) -> Stability

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Stability

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

Formats the value using the given formatter.

impl Hash for Stability

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 Encodable for Stability

fn encode<__S: Encoder>(&self, s: &mut __S) -> Result<(), __S::Error>

impl Decodable for Stability

fn decode<__D: Decoder>(d: &mut __D) -> Result<Stability, __D::Error>