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QZip*: return FileInfo by value

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Makes for much more readable callers, and, d/t NRVO, isn't less efficient
than the old code, either. Transparently enables moves when QVector should
get them, at some point, too.

Change-Id: I77327cf665272b80277deaaa6dd2ee9c00806464
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
This commit is contained in:
Marc Mutz 2015-06-24 10:14:30 +02:00
parent 0abd207052
commit aa2efdfa97
1 changed files with 10 additions and 11 deletions
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21
src/gui/text/qzip.cpp
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@ -425,7 +425,7 @@ public:
delete device;
}
void fillFileInfo(int index, QZipReader::FileInfo &fileInfo) const;
QZipReader::FileInfo fillFileInfo(int index) const;
QIODevice *device;
bool ownDevice;
@ -435,8 +435,9 @@ public:
uint start_of_directory;
};
void QZipPrivate::fillFileInfo(int index, QZipReader::FileInfo &fileInfo) const
QZipReader::FileInfo QZipPrivate::fillFileInfo(int index) const
{
QZipReader::FileInfo fileInfo;
FileHeader header = fileHeaders.at(index);
quint32 mode = readUInt(header.h.external_file_attributes);
const HostOS hostOS = HostOS(readUShort(header.h.version_made) >> 8);
@ -478,7 +479,7 @@ void QZipPrivate::fillFileInfo(int index, QZipReader::FileInfo &fileInfo) const
break;
default:
qWarning("QZip: Zip entry format at %d is not supported.", index);
return; // we don't support anything else
return fileInfo; // we don't support anything else
}
ushort general_purpose_bits = readUShort(header.h.general_purpose_bits);
@ -495,6 +496,8 @@ void QZipPrivate::fillFileInfo(int index, QZipReader::FileInfo &fileInfo) const
fileInfo.filePath = fileInfo.filePath.mid(1);
while (!fileInfo.filePath.isEmpty() && fileInfo.filePath.at(fileInfo.filePath.size() - 1) == QLatin1Char('/'))
fileInfo.filePath.chop(1);
return fileInfo;
}
class QZipReaderPrivate : public QZipPrivate
@ -895,11 +898,8 @@ QVector<QZipReader::FileInfo> QZipReader::fileInfoList() const
QVector<FileInfo> files;
const int numFileHeaders = d->fileHeaders.size();
files.reserve(numFileHeaders);
for (int i = 0; i < numFileHeaders; ++i) {
QZipReader::FileInfo fi;
d->fillFileInfo(i, fi);
files.append(fi);
}
for (int i = 0; i < numFileHeaders; ++i)
files.append(d->fillFileInfo(i));
return files;
}
@ -923,10 +923,9 @@ int QZipReader::count() const
QZipReader::FileInfo QZipReader::entryInfoAt(int index) const
{
d->scanFiles();
QZipReader::FileInfo fi;
if (index >= 0 && index < d->fileHeaders.count())
d->fillFileInfo(index, fi);
return fi;
return d->fillFileInfo(index);
return QZipReader::FileInfo();
}
/*!