pub struct Id(/* private fields */);
Expand description
An opaque identifier that is associated with AST types.
The default implementation for an identifier is empty, meaning it does not
hold any value. Attempting to perform lookups over it will fail with an
error indicating that it’s empty with the formatted string Id(*)
.
Trait Implementations§
impl Copy for Id
impl Eq for Id
impl StructuralPartialEq for Id
Auto Trait Implementations§
impl RefUnwindSafe for Id
impl Send for Id
impl Sync for Id
impl Unpin for Id
impl UnwindSafe for Id
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to
key
and return true
if they are equal.