/**
   * @fileoverview Rule to disallow if as the only statmenet in an else block
   * @author Brandon Mills
   */
  "use strict";
  
  //------------------------------------------------------------------------------
  // Rule Definition
  //------------------------------------------------------------------------------
  
  module.exports = function(context) {
  
      return {
          "IfStatement": function(node) {
              var ancestors = context.getAncestors(),
                  parent = ancestors.pop(),
                  grandparent = ancestors.pop();
  
              if (parent && parent.type === "BlockStatement" &&
                      parent.body.length === 1 && grandparent &&
                      grandparent.type === "IfStatement" &&
                      parent === grandparent.alternate) {
                  context.report(node, "Unexpected if as the only statement in an else block.");
              }
          }
      };
  
  };
  
  module.exports.schema = [];