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There might be a simpler way of writing this, but my kung macro isn't yet

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up to par if so.

svn: r11649
This commit is contained in:
Stevie Strickland 2008-09-11 17:49:29 +00:00
parent 16399b7827
commit eb676359c9
1 changed files with 8 additions and 6 deletions
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14
collects/scheme/private/contract.ss
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@ -20,9 +20,10 @@ improve method arity mismatch contract violation error messages?
(for-syntax "contract-opt-guts.ss")
(for-syntax scheme/struct-info)
(for-syntax scheme/list)
(for-syntax syntax/define)
scheme/promise
scheme/stxparam
scheme/stxparam-exptime
scheme/promise)
scheme/stxparam-exptime)
(require "contract-arrow.ss"
"contract-guts.ss"
@ -60,10 +61,11 @@ improve method arity mismatch contract violation error messages?
#'(with-contract name
([name contract-expr])
(define name expr))]
[(_ (name arg ...) contract body)
(identifier? (syntax name))
#'(define/contract name contract
(lambda (arg ...) body))]
[(_ name+arg-list contract body)
(let-values ([(name lam-expr)
(normalize-definition (datum->syntax #'stx (list 'define #'name+arg-list #'body))
#'lambda #f #t)])
#`(define/contract #,name contract #,lam-expr))]
[(_ name contract-expr expr)
(raise-syntax-error 'define/contract "expected identifier in first position"
define-stx