Enum rustc_attr::StabilityLevel

pub enum StabilityLevel {
    Unstable {
        reason: Option<Symbol>,
        issue: Option<NonZeroU32>,
        is_soft: bool,
    },
    Stable {
        since: Symbol,
    },
}

The available stability levels.

Variants

Unstable

Fields of Unstable

reason: Option<Symbol>issue: Option<NonZeroU32>is_soft: bool

Stable

Fields of Stable

since: Symbol

Implementations

impl StabilityLevel

pub fn is_unstable(&self) -> bool

pub fn is_stable(&self) -> bool

Trait Implementations

impl Clone for StabilityLevel

fn clone(&self) -> StabilityLevel

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for StabilityLevel

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

Formats the value using the given formatter.

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

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

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

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

impl Hash for StabilityLevel

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 StabilityLevel where
    __CTX: HashStableContext, 

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

impl PartialEq<StabilityLevel> for StabilityLevel

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

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

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

This method tests for !=.

impl Copy for StabilityLevel

impl Eq for StabilityLevel

impl StructuralEq for StabilityLevel

impl StructuralPartialEq for StabilityLevel

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:

• Unstable: 11 bytes
• Stable: 7 bytes