chickadee » check-errors » define-error-type

TYPNAM is a symbol.

TYPMSG is a symbol or string.

Creates a procedure definition for error-TYPNAM with the signature of the above error procedures. The type-name is either TYPMSG, when present, or "TYPNAM".

(define-error-type hash-table)
;=>
;(define (error-hash-table loc obj #!optional argnam)
;  (error-argument-type loc obj 'hash-table argnam) )

(define-error-type byte-order "symbol in {big-endian little-endian}")
;=>
;(define (error-byte-order loc obj #!optional argnam)
;  (error-argument-type loc obj "symbol in {big-endian little-endian}" argnam) )