Trait filter_ast::visit::Visit

pub trait Visit<'ast, F, P, O> {
    fn visit_clause(&mut self, clause: &'ast Clause<F, P, O>) { ... }
    fn visit_tree(&mut self, tree: &'ast Tree<Expr<F, P, O>>) { ... }
    fn visit_expr(&mut self, expr: &'ast Expr<F, P, O>) { ... }
}

Visitor for a filter expression.

Provided methods

fn visit_clause(&mut self, clause: &'ast Clause<F, P, O>)

Visit a leaf node in the filter expression.

fn visit_tree(&mut self, tree: &'ast Tree<Expr<F, P, O>>)

Visit a compound filter. The default implementation will visit each sub-expression in declaration order.

fn visit_expr(&mut self, expr: &'ast Expr<F, P, O>)

Visit a filter expression. By default this will dispatch to the visit method which matches the expression variant.

Implementors