Struct LifetimeToken

pub struct LifetimeToken<'id>(/* private fields */);

Lifetime-based token implementation.

Implementations

impl LifetimeToken<'_>

pub fn scope<R>(f: impl FnOnce(LifetimeToken<'_>) -> R) -> R

Creates a LifetimeToken with a unique lifetime, only valid for the scope of the provided closure.

Trait Implementations

impl<'id> Debug for LifetimeToken<'id>

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

Formats the value using the given formatter.

impl<'id> PartialEq for LifetimeToken<'id>

fn eq(&self, other: &LifetimeToken<'id>) -> 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 Token for LifetimeToken<'_>

type Id = ()

Id of the token.

fn id(&self) -> Self::Id

Returns the token id.

fn is_unique(&mut self) -> bool

Returns true if the token is “unique”, see safety

impl<'id> Eq for LifetimeToken<'id>

impl<'id> StructuralPartialEq for LifetimeToken<'id>