Struct AstWalker 

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

Walks the AST while tracking scope context via node_to_scope.

Implementations

impl<'a> AstWalker<'a>

pub fn new(scope_info: &'a ScopeInfo) -> Self

pub fn with_initial_scope( scope_info: &'a ScopeInfo, initial_scope: ScopeId, ) -> Self

Create a walker with an initial scope already on the stack.

pub fn scope_stack(&self) -> &[ScopeId]

pub fn loop_expression_depth(&self) -> usize

Returns the current loop-expression depth. Non-zero when the walker is inside a loop’s test/right expression (while.test, do-while.test, for-in.right, for-of.right). Visitors can use this to implement Babel-compatible scope checks in ‘all’ compilation mode.

pub fn walk_program<'ast>( &mut self, v: &mut impl Visitor<'ast>, node: &'ast Program, )

pub fn walk_block_statement<'ast>( &mut self, v: &mut impl Visitor<'ast>, node: &'ast BlockStatement, )

pub fn walk_statement<'ast>( &mut self, v: &mut impl Visitor<'ast>, stmt: &'ast Statement, )

pub fn walk_expression<'ast>( &mut self, v: &mut impl Visitor<'ast>, expr: &'ast Expression, )

pub fn walk_pattern<'ast>( &mut self, v: &mut impl Visitor<'ast>, pat: &'ast PatternLike, )