// Type definitions for esprima-walk v0.1.0
// Project: https://github.com/jrajav/esprima-walk
// Definitions by: tswaters <https://github.com/tswaters>
// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped

/// <reference path="../estree/estree.d.ts" />

declare module "esprima-walk" {

    interface NodeWithParent extends ESTree.Node {
        parent?: ESTree.Node
    }

    /**
     * Walk the provided AST; fn is called once for each node with a `type`
     * @param {ESTree.Program} ast program to walk
     * @param {function} fn function invoked for each node with type
     */
    function walk (ast: ESTree.Program, fn:(node: ESTree.Node)=>void) :void

    namespace walk {
        /**
         * Walk the provided AST; fn is called once for each node with a `type`
         * @param {ESTree.Program} ast program to walk
         * @param {function} fn function invoked for each node
         */
        export function walk (ast: ESTree.Program, fn:(node: ESTree.Node)=>void) :void

        /**
         * Walk the provided AST; fn is called once for each node with a `type`.
         * Adds a parent property prior to invoking fn when applicable
         * @param {ESTree.Program} ast program to walk
         * @param {function} fn function invoked for each node
         */
        export function walkAddParent (ast: ESTree.Program, fn:(node: NodeWithParent)=>void) :void
    }

    export = walk
}