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Allow c-values to support ret-convert from c-define-type

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This commit is contained in:
Justin Ethier 2020-05-10 18:41:04 -04:00
parent 4a6919e153
commit ab6ee6c16d
2 changed files with 13 additions and 4 deletions
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14
libs/cyclone/foreign.sld
View file

@ -32,7 +32,7 @@
(er-macro-transformer
(lambda (expr rename compare)
(let ((name (cadr expr))
(type (caddr expr)))
(type (cddr expr)))
(unless (eval '(with-handler (lambda X #f) *foreign-types*))
(write "no foreign type table" (current-error-port))
(newline (current-error-port))
@ -49,18 +49,26 @@
(lambda X #f)
(hash-table-ref *foreign-types* (quote ,type-arg))
)))
(c-ret-convert #f)
)
(when c-type
(write `(defined c type ,c-type) (current-error-port))
(newline (current-error-port))
(set! type-arg c-type))
(set! type-arg (car c-type))
(if (= 3 (length c-type))
(set! c-ret-convert (caddr c-type))))
;(for-each
; (lambda (arg)
; (if (not (string? arg))
; (error "c-value" "Invalid argument: string expected, received " arg)))
; (cdr expr))
`((lambda () (Cyc-foreign-value ,code-arg ,(symbol->string type-arg))))))))
(if c-ret-convert
`((lambda () (,c-ret-convert (Cyc-foreign-value ,code-arg ,(symbol->string type-arg)))))
`((lambda () (Cyc-foreign-value ,code-arg ,(symbol->string type-arg))))
)
))))
(define-syntax c-code
(er-macro-transformer

3
libs/test-foreign.scm
View file

@ -12,11 +12,12 @@
(define *my-global* #f)
(c-define-type my-integer integer)
(c-define-type my-integer2 integer)
(c-define-type my-integer-as-string integer string->number number->string)
(test-group "foreign value"
(test 3 (c-value "1 + 2" integer))
(test 4 (c-value "2 + 2" my-integer))
(test "4" (c-value "2 + 2" my-integer-as-string))
)
(test-group "foreign code"