/**
 * Copyright 2018 Twitter, Inc.
 * Licensed under the Apache License, Version 2.0
 * http://www.apache.org/licenses/LICENSE-2.0
 */ import { Expr } from "../api/expr" ; export * from "../api/expr" ; export function walkExpr ( root , walkCallback ) { ( root . exprs || [ ] ) . forEach ( ( expr ) => { walkExpr ( expr , walkCallback ) ; } ) ; walkCallback ( root ) ; }