From e191edfad0100af9b514e532fa80f1035280aecb Mon Sep 17 00:00:00 2001
From: Marc Mutz <marc.mutz@qt.io>
Date: Fri, 1 Apr 2022 11:15:03 +0200
Subject: [PATCH] QMetaType: don't allocate memory just to look up a key in a
 QHash

Use fromRawData() to create a QByteArray-as-a-view instead.

Pick-to: 6.3
Change-Id: Ic6083ec438bc089a6f11d7e4718eca72c0d51fe3
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
---
 src/corelib/kernel/qmetatype.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/corelib/kernel/qmetatype.cpp b/src/corelib/kernel/qmetatype.cpp
index cd71805e12..a73adaa99a 100644
--- a/src/corelib/kernel/qmetatype.cpp
+++ b/src/corelib/kernel/qmetatype.cpp
@@ -2585,7 +2585,7 @@ static int qMetaTypeCustomType_unlocked(const char *typeName, int length)
 #if QT_CONFIG(thread)
         Q_ASSERT(!reg->lock.tryLockForWrite());
 #endif
-        if (auto ti = reg->aliases.value(QByteArray(typeName, length), nullptr)) {
+        if (auto ti = reg->aliases.value(QByteArray::fromRawData(typeName, length), nullptr)) {
             return ti->typeId;
         }
     }