Struct NodeMetadata 

pub struct NodeMetadata<'gc> {
    pub range: Cell<SMRange>,
    pub debug_loc: Cell<SMLoc>,
    pub parens: Cell<u8>,
    pub id: Cell<NodeId>,
    /* private fields */
}

Metadata common to all AST nodes.

Stored inside Node and must not be constructed directly by users. range/parens/debug_loc are attributes → Cell.

Fields

range: Cell<SMRange>

The node’s source range, mirroring ESTree.h Node::sourceRange_.

debug_loc: Cell<SMLoc>

Debug location, mirroring ESTree.h Node debug loc set by JSParserImpl::setLocation. Defaults to range start.

parens: Cell<u8>

0, 1, or 2 (meaning “2 or more”), mirroring ESTree.h Node::parens_.

id: Cell<NodeId>

Identity of the arena slot this metadata is (or will be) stored in. UNASSIGNED until Context::alloc stamps a fresh id; belongs to the slot’s occupant, not to this metadata value across rebuilds.

Implementations

impl<'gc> NodeMetadata<'gc>

pub fn new(range: SMRange) -> Self

Create metadata for range. debug_loc defaults to range.start, matching the C++ 3-arg setLocation overload.

pub fn new_with_debug(range: SMRange, debug_loc: SMLoc) -> Self

Like new, but with an explicit debug location (C++ 4-arg setLocation).

Trait Implementations

impl<'gc> Debug for NodeMetadata<'gc>

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

Formats the value using the given formatter.