chickadee » check-errors » define-error-type

TYPNAM

symbol

TYPSIG

(or symbol (list-of TYPSIG))

Creates a procedure definition for error-TYPNAM with the signature of the above error procedures. The type-name is either TYPSIG, when present, or TYPNAM. The define-check+error-type/type variant adds a procedure type signature.

(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) )