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Properly trace set-but-not-used variables interacting with PUSH-VARS / POP-VARS

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This commit is contained in:
Dianne Skoll
2025-07-23 19:37:03 -04:00
parent 235f947dd1
commit be8a0621d1
1 changed files with 9 additions and 1 deletions
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10
src/var.c
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@@ -1188,6 +1188,8 @@ static int add_var_to_push(char const *name, PushedVars *pv)
dest->filename = v->filename;
dest->lineno = v->lineno;
r = CopyValue(&(dest->v), &(v->v));
/* Pretend we've used v */
v->used_since_set = 1;
}
return r;
}
@@ -1295,7 +1297,13 @@ PopVars(ParsePtr p)
/* Delete the variable if it exists */
(void) DeleteVar(src->name);
} else {
Var *dest = FindVar(src->name, 1);
Var *dest = FindVar(src->name, 0);
if ((DebugFlag & DB_UNUSED_VARS) && dest && !dest->used_since_set) {
Eprint(tr("`%s' UNSET without being used (previous SET: %s:%d)"), dest->name, dest->filename, dest->lineno);
}
if (!dest) {
dest = FindVar(src->name, 1);
}
if (!dest) {
ret = E_NO_MEM;
continue;