Enum Lifetime

#[non_exhaustive]
pub enum Lifetime {
    Static,
    Named(NamedLifetime),
    Anonymous,
}

A lifetime, analogous to [syn::Lifetime].

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Static

The 'static lifetime.

Named(NamedLifetime)

A named lifetime, like 'a.

Anonymous

An elided lifetime.

Implementations

impl Lifetime

pub fn to_named(self) -> Option<NamedLifetime>

Returns the inner NamedLifetime if the lifetime is the Named variant, otherwise None.

pub fn as_named(&self) -> Option<&NamedLifetime>

Returns a reference to the inner NamedLifetime if the lifetime is the Named variant, otherwise None.

impl Lifetime

pub fn to_syn(&self) -> Option<Lifetime>

Converts the Lifetime back into an AST node that can be spliced into a program.

Trait Implementations

impl Clone for Lifetime

fn clone(&self) -> Lifetime

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Lifetime

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Lifetime

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Lifetime

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

Formats the value using the given formatter.

impl From<&Lifetime> for Lifetime

fn from(lt: &Lifetime) -> Self

Converts to this type from the input type.

impl From<&Option<Lifetime>> for Lifetime

fn from(lt: &Option<Lifetime>) -> Self

Converts to this type from the input type.

impl Hash for Lifetime

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 PartialEq for Lifetime

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Lifetime

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl ToTokens for Lifetime

fn to_tokens(&self, tokens: &mut TokenStream)

Write self to the given TokenStream.

fn to_token_stream(&self) -> TokenStream

Convert self directly into a TokenStream object.

fn into_token_stream(self) -> TokenStream

where Self: Sized,

Convert self directly into a TokenStream object.

impl Eq for Lifetime

impl StructuralPartialEq for Lifetime