code: function( obj, objType, stack ) {
  				stack = stack || [];
  				var res, parser, parserType,
  					inStack = inArray( obj, stack );
  
  				if ( inStack !== -1 ) {
  					return "recursion(" + ( inStack - stack.length ) + ")";
  				}
  
  				objType = objType || this.typeOf( obj  );
  				parser = this.parsers[ objType ];
  				parserType = typeof parser;
  
  				if ( parserType === "function" ) {
  					stack.push( obj );
  					res = parser.call( this, obj, stack );
  					stack.pop();
  					return res;
  				}
  				return ( parserType === "string" ) ? parser : this.parsers.error;
  			}
docs: objType is used mostly internally, you can fix a (custom) type in advance