QSGRhiShaderEffectNode: Avoid unnecessary uniformBlocks list detach

Avoid unnecessary uniformBlocks list detach in
QSGRhiShaderEffectDefaultShader::create() by using QList::constFirst()
instead of non-const QList::first().

Change-Id: Ie97a9d471e7cd00b1a9f32abe29c8500defe899c
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/quick/scenegraph/qsgrhishadereffectnode.cpp b/src/quick/scenegraph/qsgrhishadereffectnode.cpp
index 8d80b13f56..c3b7b42cb9 100644
--- a/src/quick/scenegraph/qsgrhishadereffectnode.cpp
+++ b/src/quick/scenegraph/qsgrhishadereffectnode.cpp
@@ -702,7 +702,7 @@ QSGRhiShaderEffectDefaultShader QSGRhiShaderEffectDefaultShader::create(const QS
 {
     QSGRhiShaderEffectDefaultShader s;
     s.shader = loadShaderFromFile(filename);
-    const QList<QShaderDescription::BlockVariable> uboMembers = s.shader.description().uniformBlocks().first().members;
+    const QList<QShaderDescription::BlockVariable> uboMembers = s.shader.description().uniformBlocks().constFirst().members;
     for (const auto &member: uboMembers) {
         if (member.name == QByteArrayLiteral("qt_Matrix"))
             s.matrixArrayByteSize = member.size;