Struct ScopeWalker 

pub struct ScopeWalker<'src, V> { /* private fields */ }

Drives a ScopeVisitor over an AST, maintaining Scope automatically.

ScopeWalker wraps a ScopeVisitor and tracks the lexical scope as it descends the tree, updating scope before visiting children and restoring it on exit from scope-defining nodes (functions, classes, namespaces).

Usage

let arena = bumpalo::Bump::new();
let src = "<?php class Foo { public function bar() {} }";
let program = parse(&arena, src);
let mut walker = ScopeWalker::new(MyVisitor);
walker.walk(&program);
let _my_visitor = walker.into_inner();

Implementations

impl<'src, V> ScopeWalker<'src, V>

pub fn new(inner: V) -> Self

Creates a new ScopeWalker wrapping inner.

pub fn into_inner(self) -> V

Consumes the walker and returns the inner visitor.

pub fn inner(&self) -> &V

Returns a reference to the inner visitor.

pub fn inner_mut(&mut self) -> &mut V

Returns a mutable reference to the inner visitor.

impl<'arena, 'src, V: ScopeVisitor<'arena, 'src>> ScopeWalker<'src, V>

pub fn walk(&mut self, program: &Program<'arena, 'src>) -> ControlFlow<()>

Walks program, calling ScopeVisitor methods with scope context.

Trait Implementations

impl<'arena, 'src, V: ScopeVisitor<'arena, 'src>> Visitor<'arena, 'src> for ScopeWalker<'src, V>

fn visit_program(&mut self, program: &Program<'arena, 'src>) -> ControlFlow<()>

fn visit_stmt(&mut self, stmt: &Stmt<'arena, 'src>) -> ControlFlow<()>

fn visit_expr(&mut self, expr: &Expr<'arena, 'src>) -> ControlFlow<()>

fn visit_class_member( &mut self, member: &ClassMember<'arena, 'src>, ) -> ControlFlow<()>

fn visit_enum_member( &mut self, member: &EnumMember<'arena, 'src>, ) -> ControlFlow<()>

fn visit_param(&mut self, param: &Param<'arena, 'src>) -> ControlFlow<()>

fn visit_arg(&mut self, arg: &Arg<'arena, 'src>) -> ControlFlow<()>

fn visit_property_hook( &mut self, hook: &PropertyHook<'arena, 'src>, ) -> ControlFlow<()>

fn visit_type_hint( &mut self, type_hint: &TypeHint<'arena, 'src>, ) -> ControlFlow<()>

fn visit_attribute( &mut self, attribute: &Attribute<'arena, 'src>, ) -> ControlFlow<()>

fn visit_catch_clause( &mut self, catch: &CatchClause<'arena, 'src>, ) -> ControlFlow<()>

fn visit_match_arm(&mut self, arm: &MatchArm<'arena, 'src>) -> ControlFlow<()>

fn visit_closure_use_var( &mut self, var: &ClosureUseVar<'src>, ) -> ControlFlow<()>