- (define-check+error-type TYPNAM [TYPE-PRED [TYPMSG]])syntax
Creates a procedure definition for check-TYPNAM with the signature of the above check procedures. The type-predicate is either TYPE-PRED, when present, or TYPE?. The error message type-name is either the TYPMSG, when present, or "TYPNAM".
TYPNAM is an unquoted symbol.
(define-check+error-type hash-table) ;=> ;(begin ; (define-error-type hash-table) ; (define (check-hash-table loc obj #!optional argnam) ; (unless (hash-table? obj) ; (error-hash-table loc obj argnam)) ; obj))