Add macro group helper functions

lib/macro/macro-helpers.cpp

@@ -117,6 +117,34 @@ GetMacroConditions(Macro *macro)
 	return macro->Conditions();
 }
 
+bool IsGroupMacro(Macro *macro)
+{
+	return macro && macro->IsGroup();
+}
+
+std::vector<std::shared_ptr<Macro>> GetGroupMacroEntries(Macro *macro)
+{
+	if (!macro || !macro->IsGroup()) {
+		return {};
+	}
+
+	std::vector<std::shared_ptr<Macro>> entries;
+	entries.reserve(macro->GroupSize());
+
+	const auto &macros = GetTopLevelMacros();
+	for (auto it = macros.begin(); it < macros.end(); it++) {
+		if ((*it)->Name() != macro->Name()) {
+			continue;
+		}
+		for (uint32_t i = 1; i <= macro->GroupSize(); i++) {
+			entries.emplace_back(*std::next(it, i));
+		}
+		break;
+	}
+
+	return entries;
+}
+
 std::condition_variable &GetMacroWaitCV()
 {
 	static std::condition_variable cv;