Enum syntax::attr::StabilityLevel

pub enum StabilityLevel {
    Unstable {
        reason: Option<Symbol>,
        issue: u32,
    },
    Stable {
        since: Symbol,
    },
}

🔬 This is a nightly-only experimental API. (rustc_private)

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The available stability levels.

Variants

Unstable

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Fields of Unstable

reason: Option<Symbol>	🔬 This is a nightly-only experimental API. (rustc_private) this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?
issue: u32	🔬 This is a nightly-only experimental API. (rustc_private) this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Stable

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Fields of Stable

since: Symbol

🔬 This is a nightly-only experimental API. (rustc_private) this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Methods

impl StabilityLevel

pub fn is_unstable(&self) -> bool

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

pub fn is_stable(&self) -> bool

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Trait Implementations

impl Encodable for StabilityLevel

fn encode<__S: Encoder>(&self, __arg_0: &mut __S) -> Result<(), __S::Error>

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

impl Decodable for StabilityLevel

fn decode<__D: Decoder>(__arg_0: &mut __D) -> Result<StabilityLevel, __D::Error>

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

impl PartialEq for StabilityLevel

fn eq(&self, __arg_0: &StabilityLevel) -> bool

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

fn ne(&self, __arg_0: &StabilityLevel) -> bool

This method tests for !=.

impl PartialOrd for StabilityLevel

fn partial_cmp(&self, __arg_0: &StabilityLevel) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, __arg_0: &StabilityLevel) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, __arg_0: &StabilityLevel) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, __arg_0: &StabilityLevel) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, __arg_0: &StabilityLevel) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

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, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Eq for StabilityLevel

impl Hash for StabilityLevel

fn hash<__H: Hasher>(&self, __arg_0: &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].