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