/**
   * @fileoverview Rule to flag for-in loops without if statements inside
   * @author Nicholas C. Zakas
   */
  
  "use strict";
  
  //------------------------------------------------------------------------------
  // Rule Definition
  //------------------------------------------------------------------------------
  
  module.exports = function(context) {
  
      return {
  
          "ForInStatement": function(node) {
  
              /*
               * If the for-in statement has {}, then the real body is the body
               * of the BlockStatement. Otherwise, just use body as provided.
               */
              var body = node.body.type === "BlockStatement" ? node.body.body[0] : node.body;
  
              if (body && body.type !== "IfStatement") {
                  context.report(node, "The body of a for-in should be wrapped in an if statement to filter unwanted properties from the prototype.");
              }
          }
      };
  
  };
  
  module.exports.schema = [];