racket/collects/stxclass/util/error.ss
Ryan Culpepper 44efc7cb48 stxclass:
fixed scoping of attributes (wrt declare)
  added 'attribute' form
  added internal/external literals form

svn: r13574
2009-02-14 12:17:14 +00:00

17 lines
634 B
Scheme

#lang scheme/base
(provide wrong-syntax
current-syntax-context)
(define current-syntax-context (make-parameter #f))
(define (wrong-syntax stx #:extra [extras null] format-string . args)
(unless (or (eq? stx #f) (syntax? stx))
(raise-type-error 'wrong-syntax "syntax or #f" 0 (list* stx format-string args)))
(let* ([ctx (current-syntax-context)]
[blame (syntax-property ctx 'report-errors-as)])
(raise-syntax-error (if (symbol? blame) blame #f)
(apply format format-string args)
ctx
(or stx ctx)
extras)))