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| author | Ludovic Courtès <ludo@gnu.org> | 2020-10-15 16:41:14 +0200 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2020-10-15 18:50:22 +0200 |
| commit | 5ef1508942ee083ed22b844f5291e59320016b79 (patch) | |
| tree | d4133efbe23e696d8633339b74808b1ff6a1c86b | |
| parent | 48720afb322ab5ad1b6102276f4795a14803fa61 (diff) | |
| download | guix-5ef1508942ee083ed22b844f5291e59320016b79.tar.gz guix-5ef1508942ee083ed22b844f5291e59320016b79.zip | |
ui: Only suggest modules that export the unbound variable identifier.
Fixes <https://bugs.gnu.org/43498>.
Reported by Tobias Geerinckx-Rice <me@tobias.gr>.
* guix/ui.scm (known-variable-definition): Check for variables in the
public interface of HEAD, not in HEAD itself.
* tests/guix-build.sh: Add test.
| -rw-r--r-- | guix/ui.scm | 3 | ||||
| -rw-r--r-- | tests/guix-build.sh | 27 |
2 files changed, 29 insertions, 1 deletions
diff --git a/guix/ui.scm b/guix/ui.scm index 8213e8ebab..8d7bc238bc 100644 --- a/guix/ui.scm +++ b/guix/ui.scm @@ -297,7 +297,8 @@ VARIABLE and return it, or #f if none was found." (hash-map->list (lambda (name module) module) (module-submodules head))))) - (match (module-local-variable head variable) + (match (and=> (module-public-interface head) + (cut module-local-variable <> variable)) (#f (loop next suggestions visited)) (_ (match (module-name head) diff --git a/tests/guix-build.sh b/tests/guix-build.sh index 6dbb53206e..4a58ea1476 100644 --- a/tests/guix-build.sh +++ b/tests/guix-build.sh @@ -198,6 +198,33 @@ grep "forget.*(guix build-system gnu)" "$module_dir/err" # hint rm -f "$module_dir"/* +# Unbound variable: don't suggest modules that do not export the variable. +cat > "$module_dir/aa-private.scm" <<EOF +(define-module (aa-private)) +(define make-thing #f) +(set! make-thing make-thing) ;don't inline +EOF + +cat > "$module_dir/bb-public.scm" <<EOF +(define-module (bb-public) #:export (make-thing)) +(define make-thing identity) +EOF + +cat > "$module_dir/cc-user.scm" <<EOF +;; Make those module available in the global name space. +(load-from-path "aa-private.scm") +(load-from-path "bb-public.scm") + +(define-module (cc-user)) +(make-thing 42) +EOF +! guix build -f "$module_dir/cc-user.scm" -n 2> "$module_dir/err" +cat "$module_dir/err" +grep "make-thing.*unbound" "$module_dir/err" # actual error +grep "forget.*(bb-public)" "$module_dir/err" # hint + +rm -f "$module_dir"/* + # Wrong 'define-module' clause reported by 'warn-about-load-error'. cat > "$module_dir/foo.scm" <<EOF (define-module (something foo) |