Handle anonymous structs inside records

Author: lucic71

cpp2rust/converter/converter.cpp

@@ -2837,10 +2837,6 @@ std::string Converter::GetRecordName(const clang::NamedDecl *decl) const {
   if (auto it = inner_structs_.find(ID); it != inner_structs_.end()) {
     return it->second;
   }
-  if (auto *record = clang::dyn_cast<clang::RecordDecl>(decl);
-      record && !record->getIdentifier()) {
-    return ID;
-  }
   return std::regex_replace(Mapper::ToString(decl), std::regex("::"), "_");
 }
 

cpp2rust/converter/mapper.cpp

@@ -734,6 +734,17 @@ std::string ToString(clang::QualType qual_type) {
   return normalizeTranslationRule(type);
 }
 
+static std::string synthesizeAnonRecordName(const clang::RecordDecl *record) {
+  std::string parent_name;
+  if (auto *parent =
+          clang::dyn_cast<clang::RecordDecl>(record->getDeclContext())) {
+    parent_name =
+        parent->getIdentifier() ? parent->getIdentifier()->getName().str();
+                      : synthesizeAnonRecordName(parent);
+  }
+  return std::format("{}_anon_{}", parent_name, GetAnonIndex(record));
+}
+
 std::string ToString(const clang::NamedDecl *decl) {
   if (auto *record = clang::dyn_cast<clang::RecordDecl>(decl);
       record && !record->getIdentifier()) {