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node_modules/autoprefixer/lib/hacks/flex-wrap.js 1.99 KB
aaac7fed   liuqimichale   add
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  '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 _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) : _defaults(subClass, superClass); }
  
  var flexSpec = require('./flex-spec');
  var Declaration = require('../declaration');
  
  var FlexWrap = function (_Declaration) {
      _inherits(FlexWrap, _Declaration);
  
      function FlexWrap() {
          _classCallCheck(this, FlexWrap);
  
          return _possibleConstructorReturn(this, _Declaration.apply(this, arguments));
      }
  
      /**
       * Don't add prefix for 2009 spec
       */
      FlexWrap.prototype.set = function set(decl, prefix) {
          var spec = flexSpec(prefix)[0];
          if (spec !== 2009) {
              return _Declaration.prototype.set.call(this, decl, prefix);
          }
          return undefined;
      };
  
      return FlexWrap;
  }(Declaration);
  
  Object.defineProperty(FlexWrap, 'names', {
      enumerable: true,
      writable: true,
      value: ['flex-wrap']
  });
  
  
  module.exports = FlexWrap;