diff options
Diffstat (limited to 'src/corelib/serialization/qcborvalue.cpp')
| -rw-r--r-- | src/corelib/serialization/qcborvalue.cpp | 195 |
1 files changed, 111 insertions, 84 deletions
diff --git a/src/corelib/serialization/qcborvalue.cpp b/src/corelib/serialization/qcborvalue.cpp index c2f670de06..db2840704c 100644 --- a/src/corelib/serialization/qcborvalue.cpp +++ b/src/corelib/serialization/qcborvalue.cpp @@ -43,8 +43,12 @@ #include "qcborarray.h" #include "qcbormap.h" -#if QT_CONFIG(cborstream) -#include "qcborstream.h" +#if QT_CONFIG(cborstreamreader) +#include "qcborstreamreader.h" +#endif + +#if QT_CONFIG(cborstreamwriter) +#include "qcborstreamwriter.h" #endif #include <qendian.h> @@ -761,16 +765,99 @@ QT_BEGIN_NAMESPACE using namespace QtCbor; -#if QT_CONFIG(cborstream) +static QCborValue::Type convertToExtendedType(QCborContainerPrivate *d) +{ + qint64 tag = d->elements.at(0).value; + auto &e = d->elements[1]; + const ByteData *b = d->byteData(e); + + auto replaceByteData = [&](const char *buf, qsizetype len, Element::ValueFlags f) { + d->data.clear(); + d->usedData = 0; + e.flags = Element::HasByteData | f; + e.value = d->addByteData(buf, len); + }; + + switch (tag) { + case qint64(QCborKnownTags::DateTimeString): + case qint64(QCborKnownTags::UnixTime_t): { + QDateTime dt; + if (tag == qint64(QCborKnownTags::DateTimeString) && b && + e.type == QCborValue::String && (e.flags & Element::StringIsUtf16) == 0) { + // The data is supposed to be US-ASCII. If it isn't (contains UTF-8), + // QDateTime::fromString will fail anyway. + dt = QDateTime::fromString(b->asLatin1(), Qt::ISODateWithMs); + } else if (tag == qint64(QCborKnownTags::UnixTime_t) && e.type == QCborValue::Integer) { + dt = QDateTime::fromSecsSinceEpoch(e.value, Qt::UTC); + } else if (tag == qint64(QCborKnownTags::UnixTime_t) && e.type == QCborValue::Double) { + dt = QDateTime::fromMSecsSinceEpoch(qint64(e.fpvalue() * 1000), Qt::UTC); + } + if (dt.isValid()) { + QByteArray text = dt.toString(Qt::ISODateWithMs).toLatin1(); + replaceByteData(text, text.size(), Element::StringIsAscii); + e.type = QCborValue::String; + d->elements[0].value = qint64(QCborKnownTags::DateTimeString); + return QCborValue::DateTime; + } + break; + } + +#ifndef QT_BOOTSTRAPPED + case qint64(QCborKnownTags::Url): + if (e.type == QCborValue::String) { + if (b) { + // normalize to a short (decoded) form, so as to save space + QUrl url(e.flags & Element::StringIsUtf16 ? + b->asQStringRaw() : + b->toUtf8String()); + QByteArray encoded = url.toString(QUrl::DecodeReserved).toUtf8(); + replaceByteData(encoded, encoded.size(), {}); + } + return QCborValue::Url; + } + break; +#endif // QT_BOOTSTRAPPED + +#if QT_CONFIG(regularexpression) + case quint64(QCborKnownTags::RegularExpression): + if (e.type == QCborValue::String) { + // no normalization is necessary + return QCborValue::RegularExpression; + } + break; +#endif // QT_CONFIG(regularexpression) + + case qint64(QCborKnownTags::Uuid): + if (e.type == QCborValue::ByteArray) { + // force the size to 16 + char buf[sizeof(QUuid)] = {}; + if (b) + memcpy(buf, b->byte(), qMin(sizeof(buf), size_t(b->len))); + replaceByteData(buf, sizeof(buf), {}); + + return QCborValue::Uuid; + } + break; + } + + // no enriching happened + return QCborValue::Tag; +} + +#if QT_CONFIG(cborstreamreader) // in qcborstream.cpp extern void qt_cbor_stream_set_error(QCborStreamReaderPrivate *d, QCborError error); +#endif +#if QT_CONFIG(cborstreamwriter) static void writeDoubleToCbor(QCborStreamWriter &writer, double d, QCborValue::EncodingOptions opt) { if (qt_is_nan(d)) { - if (opt & QCborValue::UseFloat16) { + if (opt & QCborValue::UseFloat) { +#ifndef QT_BOOTSTRAPPED if ((opt & QCborValue::UseFloat16) == QCborValue::UseFloat16) return writer.append(std::numeric_limits<qfloat16>::quiet_NaN()); +#endif return writer.append(std::numeric_limits<float>::quiet_NaN()); } return writer.append(qt_qnan()); @@ -787,15 +874,17 @@ static void writeDoubleToCbor(QCborStreamWriter &writer, double d, QCborValue::E } } - if (opt & QCborValue::UseFloat16) { + if (opt & QCborValue::UseFloat) { float f = float(d); if (f == d) { // no data loss, we could use float +#ifndef QT_BOOTSTRAPPED if ((opt & QCborValue::UseFloat16) == QCborValue::UseFloat16) { qfloat16 f16 = f; if (f16 == f) return writer.append(f16); } +#endif return writer.append(f); } @@ -803,7 +892,7 @@ static void writeDoubleToCbor(QCborStreamWriter &writer, double d, QCborValue::E writer.append(d); } -#endif // QT_CONFIG(cborstream) +#endif // QT_CONFIG(cborstreamwriter) static inline int typeOrder(Element e1, Element e2) { @@ -1226,7 +1315,7 @@ int QCborMap::compare(const QCborMap &other) const noexcept return compareContainer(d.data(), other.d.data()); } -#if QT_CONFIG(cborstream) +#if QT_CONFIG(cborstreamwriter) static void encodeToCbor(QCborStreamWriter &writer, const QCborContainerPrivate *d, qsizetype idx, QCborValue::EncodingOptions opt) { @@ -1314,7 +1403,9 @@ static void encodeToCbor(QCborStreamWriter &writer, const QCborContainerPrivate qWarning("QCborValue: found unknown type 0x%x", e.type); } } +#endif // QT_CONFIG(cborstreamwriter) +#if QT_CONFIG(cborstreamreader) static inline double integerOutOfRange(const QCborStreamReader &reader) { Q_ASSERT(reader.isInteger()); @@ -1390,77 +1481,10 @@ static QCborValue taggedValueFromCbor(QCborStreamReader &reader) d->decodeValueFromCbor(reader); } - QCborValue::Type type = QCborValue::Tag; + QCborValue::Type type; if (reader.lastError() == QCborError::NoError) { // post-process to create our extended types - qint64 tag = d->elements.at(0).value; - auto &e = d->elements[1]; - const ByteData *b = d->byteData(e); - - auto replaceByteData = [&](const char *buf, qsizetype len) { - d->data.clear(); - d->usedData = 0; - e.flags = Element::HasByteData | Element::StringIsAscii; - e.value = d->addByteData(buf, len); - }; - - switch (tag) { - case qint64(QCborKnownTags::DateTimeString): - case qint64(QCborKnownTags::UnixTime_t): { - QDateTime dt; - if (tag == qint64(QCborKnownTags::DateTimeString) && b && - e.type == QCborValue::String && (e.flags & Element::StringIsUtf16) == 0) { - // The data is supposed to be US-ASCII. If it isn't, - // QDateTime::fromString will fail anyway. - dt = QDateTime::fromString(b->asLatin1(), Qt::ISODateWithMs); - } else if (tag == qint64(QCborKnownTags::UnixTime_t) && e.type == QCborValue::Integer) { - dt = QDateTime::fromSecsSinceEpoch(e.value, Qt::UTC); - } else if (tag == qint64(QCborKnownTags::UnixTime_t) && e.type == QCborValue::Double) { - dt = QDateTime::fromMSecsSinceEpoch(qint64(e.fpvalue() * 1000), Qt::UTC); - } - if (dt.isValid()) { - QByteArray text = dt.toString(Qt::ISODateWithMs).toLatin1(); - replaceByteData(text, text.size()); - e.type = QCborValue::String; - d->elements[0].value = qint64(QCborKnownTags::DateTimeString); - type = QCborValue::DateTime; - } - break; - } - - case qint64(QCborKnownTags::Url): - if (e.type == QCborValue::String) { - if (b) { - // normalize to a short (decoded) form, so as to save space - QUrl url(e.flags & Element::StringIsUtf16 ? - b->asQStringRaw() : - b->toUtf8String()); - QByteArray encoded = url.toString(QUrl::DecodeReserved).toUtf8(); - replaceByteData(encoded, encoded.size()); - } - type = QCborValue::Url; - } - break; - - case quint64(QCborKnownTags::RegularExpression): - if (e.type == QCborValue::String) { - // no normalization is necessary - type = QCborValue::RegularExpression; - } - break; - - case qint64(QCborKnownTags::Uuid): - if (e.type == QCborValue::ByteArray) { - // force the size to 16 - char buf[sizeof(QUuid)] = {}; - if (b) - memcpy(buf, b->byte(), qMin(sizeof(buf), size_t(b->len))); - replaceByteData(buf, sizeof(buf)); - - type = QCborValue::Uuid; - } - break; - } + type = convertToExtendedType(d); } else { // decoding error type = QCborValue::Invalid; @@ -1638,7 +1662,7 @@ void QCborContainerPrivate::decodeFromCbor(QCborStreamReader &reader) if (reader.lastError() == QCborError::NoError) reader.leaveContainer(); } -#endif // QT_CONFIG(cborstream) +#endif // QT_CONFIG(cborstreamreader) /*! Creates a QCborValue with byte array value \a ba. The value can later be @@ -1724,21 +1748,22 @@ QCborValue::QCborValue(const QCborMap &m) } /*! - \fn QCborValue::QCborValue(QCborTag t, const QCborValue &tv) - \fn QCborValue::QCborValue(QCborKnownTags t, const QCborValue &tv) + \fn QCborValue::QCborValue(QCborTag tag, const QCborValue &tv) + \fn QCborValue::QCborValue(QCborKnownTags tag, const QCborValue &tv) Creates a QCborValue for the extended type represented by the tag value \a - t, tagging value \a tv. The tag can later be retrieved using tag() and + tag, tagging value \a tv. The tag can later be retrieved using tag() and the tagged value using taggedValue(). \sa isTag(), tag(), taggedValue(), QCborKnownTags */ -QCborValue::QCborValue(QCborTag t, const QCborValue &tv) +QCborValue::QCborValue(QCborTag tag, const QCborValue &tv) : n(-1), container(new QCborContainerPrivate), t(Tag) { container->ref.storeRelaxed(1); - container->append(t); + container->append(tag); container->append(tv); + t = convertToExtendedType(container); } /*! @@ -2337,7 +2362,7 @@ QCborValueRef QCborValue::operator[](qint64 key) return { container, index }; } -#if QT_CONFIG(cborstream) +#if QT_CONFIG(cborstreamreader) /*! Decodes one item from the CBOR stream found in \a reader and returns the equivalent representation. This function is recursive: if the item is a map @@ -2452,7 +2477,9 @@ QCborValue QCborValue::fromCbor(const QByteArray &ba, QCborParserError *error) overload of this function that accepts a QByteArray, also passing \a error, if provided. */ +#endif // QT_CONFIG(cborstreamreader) +#if QT_CONFIG(cborstreamwriter) /*! Encodes this QCborValue object to its CBOR representation, using the options specified in \a opt, and return the byte array containing that @@ -2575,7 +2602,7 @@ void QCborValueRef::toCbor(QCborStreamWriter &writer, QCborValue::EncodingOption { concrete().toCbor(writer, opt); } -#endif // QT_CONFIG(cborstream) +#endif // QT_CONFIG(cborstreamwriter) void QCborValueRef::assign(QCborValueRef that, const QCborValue &other) { |