ce4c83ff
 wxy
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/*!
* Stylus - Selector
* Copyright (c) Automattic <developer.wordpress.com>
* MIT Licensed
*/
/**
* Module dependencies.
*/
var Block = require('./block')
, Node = require('./node');
/**
* Initialize a new `Selector` with the given `segs`.
*
* @param {Array} segs
* @api public
*/
var Selector = module.exports = function Selector(segs){
Node.call(this);
this.inherits = true;
this.segments = segs;
this.optional = false;
};
/**
* Inherit from `Node.prototype`.
*/
Selector.prototype.__proto__ = Node.prototype;
/**
* Return the selector string.
*
* @return {String}
* @api public
*/
Selector.prototype.toString = function(){
return this.segments.join('') + (this.optional ? ' !optional' : '');
};
/**
* Check if this is placeholder selector.
*
* @return {Boolean}
* @api public
*/
Selector.prototype.__defineGetter__('isPlaceholder', function(){
return this.val && ~this.val.substr(0, 2).indexOf('$');
});
/**
* Return a clone of this node.
*
* @return {Node}
* @api public
*/
Selector.prototype.clone = function(parent){
var clone = new Selector;
clone.lineno = this.lineno;
clone.column = this.column;
clone.filename = this.filename;
clone.inherits = this.inherits;
clone.val = this.val;
clone.segments = this.segments.map(function(node){ return node.clone(parent, clone); });
clone.optional = this.optional;
return clone;
};
/**
* Return a JSON representation of this node.
*
* @return {Object}
* @api public
*/
Selector.prototype.toJSON = function(){
return {
__type: 'Selector',
inherits: this.inherits,
segments: this.segments,
optional: this.optional,
val: this.val,
lineno: this.lineno,
column: this.column,
filename: this.filename
};
};
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