Re: [gambit-list] Hygienic macros failing?

Adrien Pierard wrote:

Hi.

...

I may be misunderstanding hygienic macros here, but as far as I can tell I am getting variable capture.

I don't use hygienic macros either but

...

This displays (7 8 9) when arg2 should be (1 2 3) (the value of a b c in the calling code, not the value in "bad").

Bigloo prints (7 8 9) and Gauche prints (1 2 3) Chicken, guile, mzscheme and petite all fail with macro error, or receive error.

You probably forgot to import "receive". Here is what happens in mzscheme:

(require (lib "8.ss" "srfi"))

(define-syntax bad

(syntax-rules () ((_ (arg1 ...) (arg2 ...)) (receive (a b c) (values arg1 ...) (newline) (write (list arg2 ...))))))

(receive (a b c) (values 1 2 3) (bad (7 8 9) (a b c)))

(1 2 3)