From f192ddad8b862d7ad2d80f28d265ea9f96142a3d Mon Sep 17 00:00:00 2001
From: Mate Barany <mate.barany@qt.io>
Date: Thu, 17 Nov 2022 13:51:33 +0100
Subject: [PATCH] QString: overload prepend with QUtf8StringView

Add the missing overload.

[ChangeLog][QtCore][QString] Added prepend(QUtf8StringView)
overload.

Task-number: QTBUG-103302
Change-Id: I3f74e884e514ebc0b15a13b074584d8272a02f41
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
---
 src/corelib/text/qstring.cpp                    | 9 ++++++++-
 src/corelib/text/qstring.h                      | 1 +
 tests/auto/corelib/text/qstring/tst_qstring.cpp | 2 ++
 3 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/corelib/text/qstring.cpp b/src/corelib/text/qstring.cpp
index f7ddb5fc8e..819086b014 100644
--- a/src/corelib/text/qstring.cpp
+++ b/src/corelib/text/qstring.cpp
@@ -3254,7 +3254,14 @@ QString &QString::append(QChar ch)
 
     \overload prepend()
 
-    Prepends the Latin-1 string \a str to this string.
+    Prepends the Latin-1 string view \a str to this string.
+*/
+
+/*! \fn QString &QString::prepend(QUtf8StringView str)
+    \since 6.5
+    \overload prepend()
+
+    Prepends the UTF-8 string view \a str to this string.
 */
 
 /*! \fn QString &QString::prepend(const QChar *str, qsizetype len)
diff --git a/src/corelib/text/qstring.h b/src/corelib/text/qstring.h
index a6cc1cf867..573fca6481 100644
--- a/src/corelib/text/qstring.h
+++ b/src/corelib/text/qstring.h
@@ -701,6 +701,7 @@ public:
     inline QString &prepend(const QString &s) { return insert(0, s); }
     inline QString &prepend(QStringView v) { return prepend(v.data(), v.size()); }
     inline QString &prepend(QLatin1StringView s) { return insert(0, s); }
+    QString &prepend(QUtf8StringView s) { return insert(0, s); }
 
     inline QString &operator+=(QChar c) { return append(c); }
 
diff --git a/tests/auto/corelib/text/qstring/tst_qstring.cpp b/tests/auto/corelib/text/qstring/tst_qstring.cpp
index 037c3043e2..65c9e086cc 100644
--- a/tests/auto/corelib/text/qstring/tst_qstring.cpp
+++ b/tests/auto/corelib/text/qstring/tst_qstring.cpp
@@ -399,6 +399,8 @@ private slots:
     void prepend_qstringview_data()   { prepend_data(EmptyIsNoop); }
     void prepend_qlatin1string()      { prepend_impl<QLatin1String, QString &(QString::*)(QLatin1String)>(); }
     void prepend_qlatin1string_data() { prepend_data({EmptyIsNoop, Latin1Encoded}); }
+    void prepend_qutf8stringview()    { prepend_impl<QUtf8StringView, QString &(QString::*)(QUtf8StringView)>(); }
+    void prepend_qutf8stringview_data() { prepend_data(EmptyIsNoop); }
     void prepend_qcharstar_int()      { prepend_impl<QPair<const QChar *, int>, QString &(QString::*)(const QChar *, qsizetype)>(); }
     void prepend_qcharstar_int_data() { prepend_data(EmptyIsNoop); }
     void prepend_qchar()              { prepend_impl<Reversed<QChar>, QString &(QString::*)(QChar)>(); }