- (define-record-type NAME (CONSTRUCTOR TAG ...) PREDICATE (FIELD ACCESSOR [MODIFIER]) ...)syntax
SRFI-9 record types. For more information see the documentation for SRFI-9.
As an extension the MODIFIER may have the form (setter PROCEDURE), which will define a SRFI-17 setter-procedure for the given PROCEDURE that sets the field value. Usually PROCEDURE has the same name is ACCESSOR (but it doesn't have to).