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 duplicate 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

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: 24 bytes

Size for each variant:

• Static: 0 bytes
• Named: 24 bytes
• Anonymous: 0 bytes