'use strict';

exports.__esModule = true;

var _container = require('./container');

var _container2 = _interopRequireDefault(_container);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

/**
 * Represents an at-rule.
 *
 * If it’s followed in the CSS by a {} block, this node will have
 * a nodes property representing its children.
 *
 * @extends Container
 *
 * @example
 * const root = postcss.parse('@charset "UTF-8"; @media print {}');
 *
 * const charset = root.first;
 * charset.type  //=> 'atrule'
 * charset.nodes //=> undefined
 *
 * const media = root.last;
 * media.nodes   //=> []
 */
var AtRule = function (_Container) {
  _inherits(AtRule, _Container);

  function AtRule(defaults) {
    _classCallCheck(this, AtRule);

    var _this = _possibleConstructorReturn(this, _Container.call(this, defaults));

    _this.type = 'atrule';
    return _this;
  }

  AtRule.prototype.append = function append() {
    var _Container$prototype$;

    if (!this.nodes) this.nodes = [];

    for (var _len = arguments.length, children = Array(_len), _key = 0; _key < _len; _key++) {
      children[_key] = arguments[_key];
    }

    return (_Container$prototype$ = _Container.prototype.append).call.apply(_Container$prototype$, [this].concat(children));
  };

  AtRule.prototype.prepend = function prepend() {
    var _Container$prototype$2;

    if (!this.nodes) this.nodes = [];

    for (var _len2 = arguments.length, children = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
      children[_key2] = arguments[_key2];
    }

    return (_Container$prototype$2 = _Container.prototype.prepend).call.apply(_Container$prototype$2, [this].concat(children));
  };

  /**
   * @memberof AtRule#
   * @member {string} name - the at-rule’s name immediately follows the `@`
   *
   * @example
   * const root  = postcss.parse('@media print {}');
   * media.name //=> 'media'
   * const media = root.first;
   */

  /**
   * @memberof AtRule#
   * @member {string} params - the at-rule’s parameters, the values
   *                           that follow the at-rule’s name but precede
   *                           any {} block
   *
   * @example
   * const root  = postcss.parse('@media print, screen {}');
   * const media = root.first;
   * media.params //=> 'print, screen'
   */

  /**
   * @memberof AtRule#
   * @member {object} raws - Information to generate byte-to-byte equal
   *                         node string as it was in the origin input.
   *
   * Every parser saves its own properties,
   * but the default CSS parser uses:
   *
   * * `before`: the space symbols before the node. It also stores `*`
   *   and `_` symbols before the declaration (IE hack).
   * * `after`: the space symbols after the last child of the node
   *   to the end of the node.
   * * `between`: the symbols between the property and value
   *   for declarations, selector and `{` for rules, or last parameter
   *   and `{` for at-rules.
   * * `semicolon`: contains true if the last child has
   *   an (optional) semicolon.
   * * `afterName`: the space between the at-rule name and its parameters.
   *
   * PostCSS cleans at-rule parameters from comments and extra spaces,
   * but it stores origin content in raws properties.
   * As such, if you don’t change a declaration’s value,
   * PostCSS will use the raw value with comments.
   *
   * @example
   * const root = postcss.parse('  @media\nprint {\n}')
   * root.first.first.raws //=> { before: '  ',
   *                       //     between: ' ',
   *                       //     afterName: '\n',
   *                       //     after: '\n' }
   */


  return AtRule;
}(_container2.default);

exports.default = AtRule;
module.exports = exports['default'];
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