Struct AstArena 

pub struct AstArena { /* private fields */ }

Arena allocator for AST nodes

Implementations

impl AstArena

pub fn new() -> Self

pub fn alloc(&mut self, node: AstNode) -> AstNodeId

Allocate a new AST node, returning its ID

pub fn get(&self, id: AstNodeId) -> Option<&AstNode>

Get a reference to a node by ID

pub fn get_mut(&mut self, id: AstNodeId) -> Option<&mut AstNode>

Get a mutable reference to a node

pub fn len(&self) -> usize

Number of allocated nodes

pub fn is_empty(&self) -> bool

Whether arena is empty

Trait Implementations

impl Default for AstArena

fn default() -> Self

Returns the “default value” for a type.