You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
18 lines
360 B
18 lines
360 B
9 years ago
|
var utils = require('../utils')
|
||
|
|
, nodes = require('../nodes');
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Lookup variable `name` or return Null.
|
||
|
|
*
|
||
|
|
* @param {String} name
|
||
|
|
* @return {Mixed}
|
||
|
|
* @api public
|
||
|
|
*/
|
||
|
|
|
||
|
|
module.exports = function lookup(name){
|
||
|
|
utils.assertType(name, 'string', 'name');
|
||
|
|
var node = this.lookup(name.val);
|
||
|
|
if (!node) return nodes.null;
|
||
|
|
return this.visit(node);
|
||
|
|
};
|