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bug#17940: (begin)
From: |
Matt Wette |
Subject: |
bug#17940: (begin) |
Date: |
Fri, 13 Mar 2020 06:08:01 -0700 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 |
I have run into this also, in writing macros.
My workaround is to always add (if #f #f)
in my forms that allow no expressions in the body.
See second-to-last line below.
(define-syntax sx-match-1
(syntax-rules ()
((_ v (pat exp ...) c1 ...)
(let ((kf (lambda () (sx-match-1 v c1 ...))))
(sxm-sexp v pat (begin (if #f #f) exp ...) (kf))))
((_ v) (error "sx-match: nothing matches"))))
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- bug#17940: (begin),
Matt Wette <=