text: /**
   * Copyright (c) 2014, 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.
   *
   * @providesModule invariant
   */
  
  "use strict";
  
  /**
   * Use invariant() to assert state which your program assumes to be true.
   *
   * Provide sprintf-style format (only %s is supported) and arguments
   * to provide information about what broke and what you were
   * expecting.
   *
   * The invariant message will be stripped in production, but the invariant
   * will remain to ensure logic does not differ in production.
   */
  var invariant = function(condition, format, a, b, c, d, e, f) {
    if (__DEV__) {
      if (format === undefined) {
        throw new Error('invariant requires an error message argument');
      }
    }
  
    if (!condition) {
      var error;
      if (format === undefined) {
        error = new Error(
          'Minified exception occurred; use the non-minified dev environment ' +
          'for the full error message and additional helpful warnings.'
        );
      } else {
        var args = [a, b, c, d, e, f];
        var argIndex = 0;
        error = new Error(
          'Invariant Violation: ' +
          format.replace(/%s/g, function() { return args[argIndex++]; })
        );
      }
  
      error.framesToPop = 1; // we don't care about invariant's own frame
      throw error;
    }
  };
  
  module.exports = invariant;