Hello!
Ludovic Courtès <l...@gnu.org> skribis:
> $ cat /tmp/unbound.scm
> (use-modules (srfi srfi-35))
>
> (condition (&message (message "oh no!"))
> (&serious))
> $ guild compile -Wunbound-variable /tmp/unbound.scm
> /tmp/unbound.scm:3:0: warning: possibly unbound variable
> `make-compound-condition'
The problem was that ‘make-compound-condition’ is re-exported from (srfi
srfi-35) and this particular case was not handled.
The attached patch fixes it. Let me know what you think!
Ludo’.
diff --git a/module/language/tree-il/analyze.scm b/module/language/tree-il/analyze.scm
index 766568f38..4b53e426f 100644
--- a/module/language/tree-il/analyze.scm
+++ b/module/language/tree-il/analyze.scm
@@ -510,6 +510,11 @@ given `tree-il' element."
;; The variable is an import. At the time of use, the
;; name is bound to the import.
'import)
+ ((and=> (module-public-interface mod)
+ (lambda (interface)
+ (module-variable interface name)))
+ ;; The variable is re-exported from module.
+ 'import)
(else
;; Variable unbound in the module.
'unbound))))))
diff --git a/test-suite/tests/tree-il.test b/test-suite/tests/tree-il.test
index 217a1000f..262c2454d 100644
--- a/test-suite/tests/tree-il.test
+++ b/test-suite/tests/tree-il.test
@@ -557,6 +557,19 @@
#:env m
#:opts %opts-w-unbound))))))))
+ (pass-if "macro-inserted binding"
+ (null? (call-with-warnings
+ (lambda ()
+ (compile '(begin
+ (use-modules (srfi srfi-35))
+
+ ;; This 'condition' form expands to a
+ ;; 'make-compound-condition' call, which is
+ ;; re-exported from (ice-9 exceptions).
+ (condition (&error)
+ (&message (message "oh!"))))
+ #:opts %opts-w-unbound)))))
+
(with-test-prefix "use-before-definition"
(define-syntax-rule (pass-if-warnings expr pat test)
(pass-if 'expr
