text: "use strict";
  
  function _defaults(obj, defaults) { var keys = Object.getOwnPropertyNames(defaults); for (var i = 0; i < keys.length; i++) { var key = keys[i]; var value = Object.getOwnPropertyDescriptor(defaults, key); if (value && value.configurable && obj[key] === undefined) { Object.defineProperty(obj, key, value); } } return obj; }
  
  function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _defaults(subClass, superClass); }
  
  function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
  
  var Declaration = require('../declaration');
  
  var BlockLogical = /*#__PURE__*/function (_Declaration) {
    _inheritsLoose(BlockLogical, _Declaration);
  
    function BlockLogical() {
      return _Declaration.apply(this, arguments) || this;
    }
  
    var _proto = BlockLogical.prototype;
  
    /**
     * Use old syntax for -moz- and -webkit-
     */
    _proto.prefixed = function prefixed(prop, prefix) {
      if (prop.includes('-start')) {
        return prefix + prop.replace('-block-start', '-before');
      }
  
      return prefix + prop.replace('-block-end', '-after');
    }
    /**
     * Return property name by spec
     */
    ;
  
    _proto.normalize = function normalize(prop) {
      if (prop.includes('-before')) {
        return prop.replace('-before', '-block-start');
      }
  
      return prop.replace('-after', '-block-end');
    };
  
    return BlockLogical;
  }(Declaration);
  
  _defineProperty(BlockLogical, "names", ['border-block-start', 'border-block-end', 'margin-block-start', 'margin-block-end', 'padding-block-start', 'padding-block-end', 'border-before', 'border-after', 'margin-before', 'margin-after', 'padding-before', 'padding-after']);
  
  module.exports = BlockLogical;