QTextStream: add missing op<<(QStringRef)

It simply is missing. We could wait for QStringView to come around, but
I need this function in uic _now_, so let's add it.

[ChangeLog][QtCore][QTextStream] Can now stream QStringRef without converting
to a QString first.

Change-Id: Idd178e0ba8a89c025f4533d46de912cbdb3883d5
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>

2 files changed, 16 insertions, 0 deletions

diff --git a/src/corelib/io/qtextstream.cpp b/src/corelib/io/qtextstream.cpp
index 5d82453270..64222c2212 100644
--- a/src/corelib/io/qtextstream.cpp
+++ b/src/corelib/io/qtextstream.cpp
@@ -2520,6 +2520,21 @@ QTextStream &QTextStream::operator<<(QLatin1String string)
 }
 
 /*!
+    \since 5.6
+    \overload
+
+    Writes \a string to the stream, and returns a reference to the
+    QTextStream.
+*/
+QTextStream &QTextStream::operator<<(const QStringRef &string)
+{
+    Q_D(QTextStream);
+    CHECK_VALID_STREAM(*this);
+    d->putString(string.data(), string.size());
+    return *this;
+}
+
+/*!
     \overload
 
     Writes \a array to the stream. The contents of \a array are
diff --git a/src/corelib/io/qtextstream.h b/src/corelib/io/qtextstream.h
index eb33db63d7..d7566e6f7b 100644
--- a/src/corelib/io/qtextstream.h
+++ b/src/corelib/io/qtextstream.h
@@ -179,6 +179,7 @@ public:
     QTextStream &operator<<(double f);
     QTextStream &operator<<(const QString &s);
     QTextStream &operator<<(QLatin1String s);
+    QTextStream &operator<<(const QStringRef &s);
     QTextStream &operator<<(const QByteArray &array);
     QTextStream &operator<<(const char *c);
     QTextStream &operator<<(const void *ptr);