[clang-tools-extra] [include-cleaner] Report refs for enum constants used through namespace aliases (PR #106706)
kadir çetinkaya via cfe-commits
cfe-commits at lists.llvm.org
Mon Sep 2 05:15:50 PDT 2024
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@@ -146,9 +148,24 @@ class ASTWalker : public RecursiveASTVisitor<ASTWalker> {
//
// If it's an enum constant, it must be due to prior decl. Report references
// to it when qualifier isn't a type.
- if (llvm::isa<EnumConstantDecl>(FD)) {
- if (!DRE->getQualifier() || DRE->getQualifier()->getAsNamespace())
- report(DRE->getLocation(), FD);
+ auto QualifierIsNamepsaceOrNone = [&DRE]() {
+ const auto *Qual = DRE->getQualifier();
+ if (!Qual)
+ return true;
+ switch (Qual->getKind()) {
+ case NestedNameSpecifier::Namespace:
+ case NestedNameSpecifier::NamespaceAlias:
+ case NestedNameSpecifier::Global:
+ return true;
+ case NestedNameSpecifier::TypeSpec:
+ case NestedNameSpecifier::TypeSpecWithTemplate:
+ case NestedNameSpecifier::Super:
+ case NestedNameSpecifier::Identifier:
+ return false;
+ }
----------------
kadircet wrote:
we already have `Wswitch` in LLVM so there should be warnings (unless we actually add a default clause). added llvm_unreachable to have some more useful error messages at runtime though.
https://github.com/llvm/llvm-project/pull/106706
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