Struct OwnedStore 

pub(super) struct OwnedStore<T: 'static> {
    counter: &'static AtomicU32,
    data: BTreeMap<NonZero<u32>, T>,
}

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

A store that associates values of type T with numeric handles. A value can be looked up using its handle.

Fields

counter: &'static AtomicU32

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

data: BTreeMap<NonZero<u32>, T>

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

Implementations

impl<T> OwnedStore<T>

pub(super) fn new(counter: &'static AtomicU32) -> Self

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

impl<T> OwnedStore<T>

pub(super) fn alloc(&mut self, x: T) -> NonZero<u32>

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

pub(super) fn take(&mut self, h: NonZero<u32>) -> T

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

Trait Implementations

impl<T> Index<NonZero<u32>> for OwnedStore<T>

type Output = T

The returned type after indexing.

fn index(&self, h: NonZero<u32>) -> &T

Performs the indexing (container[index]) operation.