jss-extend.js

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		module.exports = factory();
	else if(typeof define === 'function' && define.amd)
		define([], factory);
	else if(typeof exports === 'object')
		exports["jssExtend"] = factory();
	else
		root["jssExtend"] = factory();
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/* 0 */
/***/ (function(module, exports, __webpack_require__) {

	'use strict';
	
	Object.defineProperty(exports, "__esModule", {
	  value: true
	});
	
	var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
	
	exports['default'] = jssExtend;
	
	var _warning = __webpack_require__(1);
	
	var _warning2 = _interopRequireDefault(_warning);
	
	var _isObservable = __webpack_require__(2);
	
	var _isObservable2 = _interopRequireDefault(_isObservable);
	
	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
	
	var isObject = function isObject(obj) {
	  return obj && (typeof obj === 'undefined' ? 'undefined' : _typeof(obj)) === 'object' && !Array.isArray(obj) && !(0, _isObservable2['default'])(obj);
	};
	
	/**
	 * Recursively extend styles.
	 */
	function extend(style, rule, sheet) {
	  var newStyle = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
	
	  if (typeof style.extend === 'string') {
	    if (sheet) {
	      var refRule = sheet.getRule(style.extend);
	      if (refRule) {
	        if (refRule === rule) (0, _warning2['default'])(false, '[JSS] A rule tries to extend itself \r\n%s', rule);else if (refRule.options.parent) {
	          var originalStyle = refRule.options.parent.rules.raw[style.extend];
	          extend(originalStyle, rule, sheet, newStyle);
	        }
	      }
	    }
	  } else if (Array.isArray(style.extend)) {
	    for (var index = 0; index < style.extend.length; index++) {
	      extend(style.extend[index], rule, sheet, newStyle);
	    }
	  } else {
	    for (var prop in style.extend) {
	      if (prop === 'extend') {
	        extend(style.extend.extend, rule, sheet, newStyle);
	      } else if (isObject(style.extend[prop])) {
	        if (!newStyle[prop]) newStyle[prop] = {};
	        extend(style.extend[prop], rule, sheet, newStyle[prop]);
	      } else {
	        newStyle[prop] = style.extend[prop];
	      }
	    }
	  }
	  // Copy base style.
	  for (var _prop in style) {
	    if (_prop === 'extend') continue;
	    if (isObject(newStyle[_prop]) && isObject(style[_prop])) {
	      extend(style[_prop], rule, sheet, newStyle[_prop]);
	    } else if (isObject(style[_prop])) {
	      newStyle[_prop] = extend(style[_prop], rule, sheet);
	    } else {
	      newStyle[_prop] = style[_prop];
	    }
	  }
	
	  return newStyle;
	}
	
	/**
	 * Handle `extend` property.
	 *
	 * @param {Rule} rule
	 * @api public
	 */
	function jssExtend() {
	  function onProcessStyle(style, rule, sheet) {
	    return style.extend ? extend(style, rule, sheet) : style;
	  }
	
	  return { onProcessStyle: onProcessStyle };
	}

/***/ }),
/* 1 */
/***/ (function(module, exports, __webpack_require__) {

	/**
	 * Copyright 2014-2015, Facebook, Inc.
	 * All rights reserved.
	 *
	 * This source code is licensed under the BSD-style license found in the
	 * LICENSE file in the root directory of this source tree. An additional grant
	 * of patent rights can be found in the PATENTS file in the same directory.
	 */
	
	'use strict';
	
	/**
	 * Similar to invariant but only logs a warning if the condition is not met.
	 * This can be used to log issues in development environments in critical
	 * paths. Removing the logging code for production environments will keep the
	 * same logic and follow the same code paths.
	 */
	
	var warning = function() {};
	
	if (true) {
	  warning = function(condition, format, args) {
	    var len = arguments.length;
	    args = new Array(len > 2 ? len - 2 : 0);
	    for (var key = 2; key < len; key++) {
	      args[key - 2] = arguments[key];
	    }
	    if (format === undefined) {
	      throw new Error(
	        '`warning(condition, format, ...args)` requires a warning ' +
	        'message argument'
	      );
	    }
	
	    if (format.length < 10 || (/^[s\W]*$/).test(format)) {
	      throw new Error(
	        'The warning format should be able to uniquely identify this ' +
	        'warning. Please, use a more descriptive format than: ' + format
	      );
	    }
	
	    if (!condition) {
	      var argIndex = 0;
	      var message = 'Warning: ' +
	        format.replace(/%s/g, function() {
	          return args[argIndex++];
	        });
	      if (typeof console !== 'undefined') {
	        console.error(message);
	      }
	      try {
	        // This error was thrown as a convenience so that you can use this stack
	        // to find the callsite that caused this warning to fire.
	        throw new Error(message);
	      } catch(x) {}
	    }
	  };
	}
	
	module.exports = warning;


/***/ }),
/* 2 */
/***/ (function(module, exports, __webpack_require__) {

	'use strict';
	var symbolObservable = __webpack_require__(3);
	
	module.exports = function (fn) {
		return Boolean(fn && fn[symbolObservable]);
	};


/***/ }),
/* 3 */
/***/ (function(module, exports, __webpack_require__) {

	/* WEBPACK VAR INJECTION */(function(global) {/* global window */
	'use strict';
	
	module.exports = __webpack_require__(4)(global || window || this);
	
	/* WEBPACK VAR INJECTION */}.call(exports, (function() { return this; }())))

/***/ }),
/* 4 */
/***/ (function(module, exports) {

	'use strict';
	
	module.exports = function symbolObservablePonyfill(root) {
		var result;
		var Symbol = root.Symbol;
	
		if (typeof Symbol === 'function') {
			if (Symbol.observable) {
				result = Symbol.observable;
			} else {
				result = Symbol('observable');
				Symbol.observable = result;
			}
		} else {
			result = '@@observable';
		}
	
		return result;
	};


/***/ })
/******/ ])
});
;
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