Function invariant

spreadsheet/code/as-react-livescript/main.js:12821–12847

(condition, format, a, b, c, d, e, f)

	 */

	var invariant = function(condition, format, a, b, c, d, e, f) {
	  if ("production" !== process.env.NODE_ENV) {
	    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;