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 wxy
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/*!
* Stylus - Null
* Copyright (c) Automattic <developer.wordpress.com>
* MIT Licensed
*/
/**
* Module dependencies.
*/
var Node = require('./node')
, nodes = require('./');
/**
* Initialize a new `Null` node.
*
* @api public
*/
var Null = module.exports = function Null(){};
/**
* Inherit from `Node.prototype`.
*/
Null.prototype.__proto__ = Node.prototype;
/**
* Return 'Null'.
*
* @return {String}
* @api public
*/
Null.prototype.inspect =
Null.prototype.toString = function(){
return 'null';
};
/**
* Return false.
*
* @return {Boolean}
* @api public
*/
Null.prototype.toBoolean = function(){
return nodes.false;
};
/**
* Check if the node is a null node.
*
* @return {Boolean}
* @api public
*/
Null.prototype.__defineGetter__('isNull', function(){
return true;
});
/**
* Return hash.
*
* @return {String}
* @api public
*/
Null.prototype.__defineGetter__('hash', function(){
return null;
});
/**
* Return a JSON representation of this node.
*
* @return {Object}
* @api public
*/
Null.prototype.toJSON = function(){
return {
__type: 'Null',
lineno: this.lineno,
column: this.column,
filename: this.filename
};
};
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