From c773473d756fdad9e429a622295fbaee6eda964b Mon Sep 17 00:00:00 2001
From: Marc Mutz <marc.mutz@qt.io>
Date: Wed, 1 Mar 2023 14:00:23 +0100
Subject: [PATCH] qobjectdefs.h: optimize AreOldStyleArgs

Use a template alias instead of C++98-style inheritance.

Saves one template instantiation.

Change-Id: I95ee9cf1e5eac1db5fc8e05cd95f5e745134214d
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
(cherry picked from commit b37b820ce8801613139241036d15baa581a6a403)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
---
 src/corelib/kernel/qobjectdefs.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/corelib/kernel/qobjectdefs.h b/src/corelib/kernel/qobjectdefs.h
index 4232d5b1e61..e136fb61f62 100644
--- a/src/corelib/kernel/qobjectdefs.h
+++ b/src/corelib/kernel/qobjectdefs.h
@@ -145,9 +145,9 @@ struct QMetaMethodReturnArgument
 namespace QtPrivate {
 namespace Invoke {
 #if QT_VERSION <= QT_VERSION_CHECK(7, 0, 0)
-template <typename... Args> struct AreOldStyleArgs :
-        std::disjunction<std::is_base_of<QGenericArgument, Args>...>
-{};
+template <typename... Args>
+using AreOldStyleArgs = std::disjunction<std::is_base_of<QGenericArgument, Args>...>;
+
 template <typename T, typename... Args> using IfNotOldStyleArgs =
     std::enable_if_t<!AreOldStyleArgs<Args...>::value, T>;
 #else