Struct NamespacePageFactory 

pub struct NamespacePageFactory<'a> { /* private fields */ }

Arena-backed page array of Cell<NamespaceNode>.

Mirrors NodePages but for namespace bindings.

Implementations

impl<'a> NamespacePageFactory<'a>

pub fn new(arena: &'a Bump) -> Self

Creates a new factory with the first page pre-allocated.

pub fn alloc(&mut self) -> Option<NsRef>

Allocates the next namespace slot and returns its NsRef.

Returns None if the index would reach u32::MAX (reserved as NULL).

pub fn get(&self, ns_ref: NsRef) -> NamespaceNode

Reads the namespace node at the given reference.

pub fn set(&self, ns_ref: NsRef, node: NamespaceNode)

Writes a namespace node at the given reference (interior mutability).

pub fn len(&self) -> u32

Returns the total number of allocated namespace nodes.

pub fn is_empty(&self) -> bool

Returns true if no namespace nodes have been allocated.

pub fn iter_chain(&self, head: NsRef) -> NamespaceChain<'_, 'a>

Returns an iterator over the chain starting at head.

Yields (prefix, namespace_uri) pairs. An NsRef::NULL head produces an empty iterator.