'use strict';

exports.__esModule = true;

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

/**
 * Represents a plugin’s warning. It can be created using {@link Node#warn}.
 *
 * @example
 * if ( decl.important ) {
 *     decl.warn(result, 'Avoid !important', { word: '!important' });
 * }
 */
var Warning = function () {

  /**
   * @param {string} text        - warning message
   * @param {Object} [opts]      - warning options
   * @param {Node}   opts.node   - CSS node that caused the warning
   * @param {string} opts.word   - word in CSS source that caused the warning
   * @param {number} opts.index  - index in CSS node string that caused
   *                               the warning
   * @param {string} opts.plugin - name of the plugin that created
   *                               this warning. {@link Result#warn} fills
   *                               this property automatically.
   */
  function Warning(text) {
    var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    _classCallCheck(this, Warning);

    /**
     * @member {string} - Type to filter warnings from
     *                    {@link Result#messages}. Always equal
     *                    to `"warning"`.
     *
     * @example
     * const nonWarning = result.messages.filter(i => i.type !== 'warning')
     */
    this.type = 'warning';
    /**
     * @member {string} - The warning message.
     *
     * @example
     * warning.text //=> 'Try to avoid !important'
     */
    this.text = text;

    if (opts.node && opts.node.source) {
      var pos = opts.node.positionBy(opts);
      /**
       * @member {number} - Line in the input file
       *                    with this warning’s source
       *
       * @example
       * warning.line //=> 5
       */
      this.line = pos.line;
      /**
       * @member {number} - Column in the input file
       *                    with this warning’s source.
       *
       * @example
       * warning.column //=> 6
       */
      this.column = pos.column;
    }

    for (var opt in opts) {
      this[opt] = opts[opt];
    }
  }

  /**
   * Returns a warning position and message.
   *
   * @example
   * warning.toString() //=> 'postcss-lint:a.css:10:14: Avoid !important'
   *
   * @return {string} warning position and message
   */


  Warning.prototype.toString = function toString() {
    if (this.node) {
      return this.node.error(this.text, {
        plugin: this.plugin,
        index: this.index,
        word: this.word
      }).message;
    } else if (this.plugin) {
      return this.plugin + ': ' + this.text;
    } else {
      return this.text;
    }
  };

  /**
   * @memberof Warning#
   * @member {string} plugin - The name of the plugin that created
   *                           it will fill this property automatically.
   *                           this warning. When you call {@link Node#warn}
   *
   * @example
   * warning.plugin //=> 'postcss-important'
   */

  /**
   * @memberof Warning#
   * @member {Node} node - Contains the CSS node that caused the warning.
   *
   * @example
   * warning.node.toString() //=> 'color: white !important'
   */

  return Warning;
}();

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