mirror of https://github.com/jkjoy/sunpeiwen.git
85 lines
1.6 KiB
JavaScript
85 lines
1.6 KiB
JavaScript
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/*!
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* Stylus - Feature
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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 Node = require('./node');
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/**
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* Initialize a new `Feature` 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 Feature = module.exports = function Feature(segs){
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Node.call(this);
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this.segments = segs;
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this.expr = null;
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};
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/**
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* Inherit from `Node.prototype`.
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*/
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Feature.prototype.__proto__ = Node.prototype;
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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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Feature.prototype.clone = function(parent){
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var clone = new Feature;
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clone.segments = this.segments.map(function(node){ return node.clone(parent, clone); });
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if (this.expr) clone.expr = this.expr.clone(parent, clone);
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if (this.name) clone.name = this.name;
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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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return clone;
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};
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/**
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* Return "<ident>" or "(<ident>: <expr>)"
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*
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* @return {String}
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* @api public
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*/
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Feature.prototype.toString = function(){
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if (this.expr) {
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return '(' + this.segments.join('') + ': ' + this.expr.toString() + ')';
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} else {
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return this.segments.join('');
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}
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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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Feature.prototype.toJSON = function(){
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var json = {
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__type: 'Feature',
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segments: this.segments,
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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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if (this.expr) json.expr = this.expr;
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if (this.name) json.name = this.name;
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return json;
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};
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