QTemporaryFile: Add support for std::filesystem::path

Since it hides QFile's overloads this was not supported for
QTemporaryFile.

[ChangeLog][QtCore][QTemporaryFile] Added support for passing
std::filesystem::path to rename and createNativeFile.

Change-Id: I909ff1d5b9c586824c9901d7dad278dfad09ffc3
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

src/corelib/io/qtemporaryfile.cpp

@@ -630,6 +630,12 @@ QTemporaryFile::QTemporaryFile()
 {
 }
 
+/*!
+    \fn QTemporaryFile::QTemporaryFile(const std::filesystem::path &templateName, QObject *parent)
+    \overload
+    \since 6.7
+*/
+
 /*!
     Constructs a QTemporaryFile with a template filename of \a
     templateName. Upon opening the temporary file this will be used to create
@@ -791,6 +797,12 @@ QString QTemporaryFile::fileTemplate() const
     return d->templateName;
 }
 
+/*!
+    \fn void QTemporaryFile::setFileTemplate(const std::filesystem::path &name)
+    \overload
+    \since 6.7
+*/
+
 /*!
    Sets the static portion of the file name to \a name. If the file
    template contains XXXXXX that will automatically be replaced with
@@ -812,6 +824,12 @@ void QTemporaryFile::setFileTemplate(const QString &name)
     d->templateName = name;
 }
 
+/*!
+    \fn bool QTemporaryFile::rename(const std::filesystem::path &newName)
+    \overload
+    \since 6.7
+*/
+
 /*!
     Renames the current temporary file to \a newName and returns true if it
     succeeded.
@@ -860,7 +878,11 @@ bool QTemporaryFile::rename(const QString &newName)
   Works on the given \a fileName rather than an existing QFile
   object.
 */
-
+/*!
+  \fn QTemporaryFile *QTemporaryFile::createNativeFile(const std::filesystem::path &fileName)
+  \overload
+  \since 6.7
+*/
 
 /*!
   If \a file is not already a native file, then a QTemporaryFile is created

src/corelib/io/qtemporaryfile.h

@@ -32,7 +32,16 @@ public:
 #ifndef QT_NO_QOBJECT
     explicit QTemporaryFile(QObject *parent);
     QTemporaryFile(const QString &templateName, QObject *parent);
-#endif
+
+#  if QT_CONFIG(cxx17_filesystem) || defined(Q_QDOC)
+    Q_WEAK_OVERLOAD
+    explicit QTemporaryFile(const std::filesystem::path &templateName, QObject *parent = nullptr)
+        : QTemporaryFile(QtPrivate::fromFilesystemPath(templateName), parent)
+    {
+    }
+#  endif // QT_CONFIG(cxx17_filesystem)
+#endif // !QT_NO_QOBJECT
+
     ~QTemporaryFile();
 
     bool autoRemove() const;
@@ -44,14 +53,38 @@ public:
     QString fileName() const override;
     QString fileTemplate() const;
     void setFileTemplate(const QString &name);
+#if QT_CONFIG(cxx17_filesystem) || defined(Q_QDOC)
+    Q_WEAK_OVERLOAD
+    void setFileTemplate(const std::filesystem::path &name)
+    {
+        return setFileTemplate(QtPrivate::fromFilesystemPath(name));
+    }
+#endif // QT_CONFIG(cxx17_filesystem)
 
     // Hides QFile::rename
     bool rename(const QString &newName);
 
+#if QT_CONFIG(cxx17_filesystem) || defined(Q_QDOC)
+    Q_WEAK_OVERLOAD
+    bool rename(const std::filesystem::path &newName)
+    {
+        return rename(QtPrivate::fromFilesystemPath(newName));
+    }
+#endif // QT_CONFIG(cxx17_filesystem)
+
     inline static QTemporaryFile *createNativeFile(const QString &fileName)
         { QFile file(fileName); return createNativeFile(file); }
     static QTemporaryFile *createNativeFile(QFile &file);
 
+#if QT_CONFIG(cxx17_filesystem) || defined(Q_QDOC)
+    Q_WEAK_OVERLOAD
+    static QTemporaryFile *createNativeFile(const std::filesystem::path &fileName)
+    {
+        QFile file(fileName);
+        return createNativeFile(file);
+    }
+#endif // QT_CONFIG(cxx17_filesystem)
+
 protected:
     bool open(OpenMode flags) override;
 

tests/auto/corelib/io/qtemporaryfile/tst_qtemporaryfile.cpp

@@ -75,6 +75,7 @@ private slots:
     void QTBUG_4796_data();
     void QTBUG_4796();
     void guaranteeUnique();
+    void stdfilesystem();
 private:
     QTemporaryDir m_temporaryDir;
     QString m_previousCurrent;
@@ -1036,5 +1037,49 @@ void tst_QTemporaryFile::guaranteeUnique()
     QVERIFY(dir.rmdir(takenFileName));
 }
 
+void tst_QTemporaryFile::stdfilesystem()
+{
+#if !QT_CONFIG(cxx17_filesystem)
+    QSKIP("std::filesystem not available");
+#else
+    // ctor
+    {
+        std::filesystem::path testFile("testFile1.XXXXXX");
+        QTemporaryFile file(testFile);
+        QCOMPARE(file.fileTemplate(), QtPrivate::fromFilesystemPath(testFile));
+    }
+    // rename
+    {
+        QTemporaryFile file("testFile1.XXXXXX");
+        QVERIFY(file.open());
+        QByteArray payload = "abc123 I am a string";
+        file.write(payload);
+        QVERIFY(file.rename(std::filesystem::path("./test")));
+        file.close();
+
+        QFile f(u"./test"_s);
+        QVERIFY(f.exists());
+        QVERIFY(f.open(QFile::ReadOnly));
+        QCOMPARE(f.readAll(), payload);
+    }
+    // createNativeFile
+    {
+        std::filesystem::path resource(":/resources/test.txt");
+        std::unique_ptr<QTemporaryFile> tmp(QTemporaryFile::createNativeFile(resource));
+        QVERIFY(tmp);
+        QFile file(resource);
+        QVERIFY(file.open(QFile::ReadOnly));
+        QCOMPARE(tmp->readAll(), file.readAll());
+    }
+    // setFileTemplate
+    {
+        QTemporaryFile file;
+        std::filesystem::path testFile("testFile1.XXXXXX");
+        file.setFileTemplate(testFile);
+        QCOMPARE(file.fileTemplate(), QtPrivate::fromFilesystemPath(testFile));
+    }
+#endif
+}
+
 QTEST_MAIN(tst_QTemporaryFile)
 #include "tst_qtemporaryfile.moc"