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authorLudovic Courtès <ludo@gnu.org>2021-05-01 23:12:17 +0200
committerLudovic Courtès <ludo@gnu.org>2021-05-02 01:20:19 +0200
commit5969490f55e5a167a3eb2573a3c5241c0ce079f3 (patch)
treec42599676e193eaf5773b6418c14f41c5ad7b3b6
parent81094013be65fe01b372af2b6eec1bc16462e99b (diff)
downloadguile-5969490f55e5a167a3eb2573a3c5241c0ce079f3.tar.gz
analyze: 'unbound-variable' warning handles re-exported bindings.
Fixes <https://bugs.gnu.org/47031>. * module/language/tree-il/analyze.scm (make-use-before-definition-analysis) [resolve]: Add case for when NAME is re-exported by MOD. * test-suite/tests/tree-il.test ("warnings")["re-exported binding"]: New test.
-rw-r--r--module/language/tree-il/analyze.scm5
-rw-r--r--test-suite/tests/tree-il.test13
2 files changed, 18 insertions, 0 deletions
diff --git a/module/language/tree-il/analyze.scm b/module/language/tree-il/analyze.scm
index 766568f38..1567e3ec5 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 another 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 97bf17aa2..686eab9d2 100644
--- a/test-suite/tests/tree-il.test
+++ b/test-suite/tests/tree-il.test
@@ -578,6 +578,19 @@
#:env m
#:opts %opts-w-unbound))))))))
+ (pass-if "re-exported binding" ;<https://bugs.gnu.org/47031>
+ (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