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QJsonWriter: general cleanup

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Use reinterpret_cast instead of C-style cast.

Take by QStringView directly so that we can use QSV::utf16().

Change-Id: I6d30669b0ed4bdf80a63043c364af695fd1d68b5
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This commit is contained in:
Ahmad Samir 2023-04-23 22:48:37 +02:00
parent b2a95f9eee
commit 5c3888fe10
1 changed files with 8 additions and 7 deletions
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15
src/corelib/serialization/qjsonwriter.cpp
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@ -22,23 +22,24 @@ static inline uchar hexdig(uint u)
return (u < 0xa ? '0' + u : 'a' + u - 0xa);
}
static QByteArray escapedString(const QString &s)
static QByteArray escapedString(QStringView s)
{
// give it a minimum size to ensure the resize() below always adds enough space
QByteArray ba(qMax(s.size(), 16), Qt::Uninitialized);
auto ba_const_start = [&]() { return reinterpret_cast<const uchar *>(ba.constData()); };
uchar *cursor = reinterpret_cast<uchar *>(const_cast<char *>(ba.constData()));
const uchar *ba_end = cursor + ba.size();
const char16_t *src = reinterpret_cast<const char16_t *>(s.constBegin());
const char16_t *const end = reinterpret_cast<const char16_t *>(s.constEnd());
const char16_t *src = s.utf16();
const char16_t *const end = s.utf16() + s.size();
while (src != end) {
if (cursor >= ba_end - 6) {
// ensure we have enough space
qptrdiff pos = cursor - (const uchar *)ba.constData();
qptrdiff pos = cursor - ba_const_start();
ba.resize(ba.size()*2);
cursor = (uchar *)ba.data() + pos;
ba_end = (const uchar *)ba.constData() + ba.size();
cursor = reinterpret_cast<uchar *>(ba.data()) + pos;
ba_end = ba_const_start() + ba.size();
}
char16_t u = *src++;
@ -88,7 +89,7 @@ static QByteArray escapedString(const QString &s)
}
}
ba.resize(cursor - (const uchar *)ba.constData());
ba.resize(cursor - ba_const_start());
return ba;
}