QAbstractFileEngine: remove beginEntryList(QDir::Filters)

It was kept so as not to break compilation of user code (overriding a
function that doesn't exist in the base class). But as Marcus Tillmanns
pointed out in a qtcreator code review, it can't work because
QDirListing calls the virutal
engine->beginEntryList(QDirListing::IteratorFlags).

Removing beginEntryList(QDir::Filters) and getting a compile-timer error
is better than the code failing silently in user code (all sub-classes
of QAbstractFileEngine in qtbase have been already ported).

QDir::entryList() isn't affected because it calls
QAbstractFileEngine::entryList() which has an overload that works with
QDir::Filters.

Change-Id: I3cb18402f602ac78a6b29be57e59febb2b9db7c0
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
(cherry picked from commit 4fecfcc867f8215defaa40b50f0340654a36b4c7)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

src/corelib/io/qabstractfileengine.cpp

@@ -1034,16 +1034,6 @@ QFileInfo QAbstractFileEngineIterator::currentFileInfo() const
 
     \sa QDirListing
 */
-QAbstractFileEngine::IteratorUniquePtr
-QAbstractFileEngine::beginEntryList(const QString &path, QDir::Filters filters,
-                                    const QStringList &filterNames)
-{
-    Q_UNUSED(path);
-    Q_UNUSED(filters);
-    Q_UNUSED(filterNames);
-    return {};
-}
-
 QAbstractFileEngine::IteratorUniquePtr
 QAbstractFileEngine::beginEntryList(const QString &path, QDirListing::IteratorFlags filters,
                                     const QStringList &filterNames)

src/corelib/io/qabstractfileengine_p.h

@@ -127,10 +127,7 @@ public:
     typedef QAbstractFileEngineIterator Iterator;
     using IteratorUniquePtr = std::unique_ptr<Iterator>;
 
-    virtual IteratorUniquePtr
-    beginEntryList(const QString &path, QDir::Filters filters, const QStringList &filterNames);
     virtual IteratorUniquePtr endEntryList() { return {}; }
-
     virtual IteratorUniquePtr
     beginEntryList(const QString &path, QDirListing::IteratorFlags filters,
                    const QStringList &filterNames);

src/corelib/io/qfsfileengine.cpp

@@ -791,13 +791,6 @@ qint64 QFSFileEnginePrivate::writeFdFh(const char *data, qint64 len)
 /*!
     \internal
 */
-QAbstractFileEngine::IteratorUniquePtr
-QFSFileEngine::beginEntryList(const QString &path, QDir::Filters filters,
-                              const QStringList &filterNames)
-{
-    return std::make_unique<QFSFileEngineIterator>(path, filters, filterNames);
-}
-
 QAbstractFileEngine::IteratorUniquePtr
 QFSFileEngine::beginEntryList(const QString &path, QDirListing::IteratorFlags filters,
                               const QStringList &filterNames)

src/corelib/io/qfsfileengine_p.h

@@ -86,8 +86,6 @@ public:
     int handle() const override;
 
 #ifndef QT_NO_FILESYSTEMITERATOR
-    IteratorUniquePtr beginEntryList(const QString &path, QDir::Filters filters,
-                                     const QStringList &filterNames) override;
     IteratorUniquePtr beginEntryList(const QString &path, QDirListing::IteratorFlags filters,
                                      const QStringList &filterNames) override;
 #endif

src/corelib/io/qresource.cpp

@@ -1582,13 +1582,6 @@ QDateTime QResourceFileEngine::fileTime(QFile::FileTime time) const
 /*!
     \internal
 */
-QAbstractFileEngine::IteratorUniquePtr
-QResourceFileEngine::beginEntryList(const QString &path, QDir::Filters filters,
-                                    const QStringList &filterNames)
-{
-    return std::make_unique<QResourceFileEngineIterator>(path, filters, filterNames);
-}
-
 QAbstractFileEngine::IteratorUniquePtr
 QResourceFileEngine::beginEntryList(const QString &path, QDirListing::IteratorFlags filters,
                                     const QStringList &filterNames)

src/corelib/io/qresource_p.h

@@ -49,8 +49,6 @@ public:
 
     QDateTime fileTime(QFile::FileTime time) const override;
 
-    IteratorUniquePtr beginEntryList(const QString &path, QDir::Filters filters,
-                                     const QStringList &filterNames) override;
     IteratorUniquePtr beginEntryList(const QString &path, QDirListing::IteratorFlags filters,
                                      const QStringList &filterNames) override;
 

tests/auto/corelib/io/qdiriterator/tst_qdiriterator.cpp

@@ -439,7 +439,7 @@ public:
     { }
 
     IteratorUniquePtr
-    beginEntryList(const QString &, QDir::Filters, const QStringList &) override
+    beginEntryList(const QString &, QDirListing::IteratorFlags, const QStringList &) override
     { return nullptr; }
 };