stylus/lib/nodes/call.js

Robust, expressive, and feature-rich CSS superset

/*!
 * Stylus - Call
 * Copyright (c) Automattic <developer.wordpress.com>
 * MIT Licensed
 */

/**
 * Module dependencies.
 */

var Node = require('./node');

module.exports = class Call extends Node {
  /**
   * Initialize a new `Call` with `name` and `args`.
   *
   * @param {String} name
   * @param {Expression} args
   * @api public
   */

  constructor(name, args) {
    super();
    this.name = name;
    this.args = args;
  }

  /**
   * Return a clone of this node.
   * 
   * @return {Node}
   * @api public
   */

  clone(parent) {
    var clone = new Call(this.name);
    clone.args = this.args.clone(parent, clone);
    if (this.block) clone.block = this.block.clone(parent, clone);
    clone.lineno = this.lineno;
    clone.column = this.column;
    clone.filename = this.filename;
    return clone;
  };

  /**
   * Return <name>(param1, param2, ...).
   *
   * @return {String}
   * @api public
   */

  toString() {
    var args = this.args.nodes.map(function (node) {
      var str = node.toString();
      return str.slice(1, str.length - 1);
    }).join(', ');

    return this.name + '(' + args + ')';
  };

  /**
   * Return a JSON representation of this node.
   *
   * @return {Object}
   * @api public
   */

  toJSON() {
    var json = {
      __type: 'Call',
      name: this.name,
      args: this.args,
      lineno: this.lineno,
      column: this.column,
      filename: this.filename
    };
    if (this.block) json.block = this.block;
    return json;
  };
};