Module datafusion_expr::expr_visitor

Expression visitor

Enums

Recursion

Controls how the visitor recursion should proceed.

Traits

ExprVisitable

trait for types that can be visited by ExpressionVisitor

ExpressionVisitor

Encode the traversal of an expression tree. When passed to Expr::accept, ExpressionVisitor::visit is invoked recursively on all nodes of an expression tree. See the comments on Expr::accept for details on its use