hexo/node_modules/stylus/lib/nodes/feature.js

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2023-09-25 15:58:56 +08:00
/*!
* Stylus - Feature
* Copyright (c) Automattic <developer.wordpress.com>
* MIT Licensed
*/
/**
* Module dependencies.
*/
var Node = require('./node');
/**
* Initialize a new `Feature` with the given `segs`.
*
* @param {Array} segs
* @api public
*/
var Feature = module.exports = function Feature(segs){
Node.call(this);
this.segments = segs;
this.expr = null;
};
/**
* Inherit from `Node.prototype`.
*/
Feature.prototype.__proto__ = Node.prototype;
/**
* Return a clone of this node.
*
* @return {Node}
* @api public
*/
Feature.prototype.clone = function(parent){
var clone = new Feature;
clone.segments = this.segments.map(function(node){ return node.clone(parent, clone); });
if (this.expr) clone.expr = this.expr.clone(parent, clone);
if (this.name) clone.name = this.name;
clone.lineno = this.lineno;
clone.column = this.column;
clone.filename = this.filename;
return clone;
};
/**
* Return "<ident>" or "(<ident>: <expr>)"
*
* @return {String}
* @api public
*/
Feature.prototype.toString = function(){
if (this.expr) {
return '(' + this.segments.join('') + ': ' + this.expr.toString() + ')';
} else {
return this.segments.join('');
}
};
/**
* Return a JSON representation of this node.
*
* @return {Object}
* @api public
*/
Feature.prototype.toJSON = function(){
var json = {
__type: 'Feature',
segments: this.segments,
lineno: this.lineno,
column: this.column,
filename: this.filename
};
if (this.expr) json.expr = this.expr;
if (this.name) json.name = this.name;
return json;
};