diff options
Diffstat (limited to 'guix/gexp.scm')
| -rw-r--r-- | guix/gexp.scm | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/guix/gexp.scm b/guix/gexp.scm index 260118affa..c9f6cbe99a 100644 --- a/guix/gexp.scm +++ b/guix/gexp.scm @@ -60,7 +60,12 @@ (define (write-gexp gexp port) "Write GEXP on PORT." (display "#<gexp " port) - (write (apply (gexp-proc gexp) (gexp-references gexp)) port) + + ;; Try to write the underlying sexp. Now, this trick doesn't work when + ;; doing things like (ungexp-splicing (gexp ())) because GEXP's procedure + ;; tries to use 'append' on that, which fails with wrong-type-arg. + (false-if-exception + (write (apply (gexp-proc gexp) (gexp-references gexp)) port)) (format port " ~a>" (number->string (object-address gexp) 16))) |