qt5base-lts/tests/auto/corelib/text/qbytearraymatcher
Marc Mutz cce7e35253 Q(Static)ByteArrayMatcher: manage indexIn() overloads
Unlike QString and QStringView, QByteArrayView and QByteArray don't
overload well.

Solve the overload issue the usual way: by making the QByteArray one a
Q_WEAK_OVERLOAD. This is trivial for QStaticByteArrayMatcher, which
isn't exported, but require QT_REMOVED_SINCE magic for
QByteArrayMatcher, which is.

The additional const char* overload has shielded us from the worst
fall-out so far, it seems, but it makes for a truly horrible overload
set:

    matcher.indexIn(str, 3);

Q: Is the 3 here the length of the haystack or the value of the from
parameter?

A: It depends on decltype(str)!

If the (const char*, qsizetype, qsizetype=0) overload is the better
match, then 3 limits the haystack's length.

If, otoh, the (QByteArray(View), qsizetype) overload is the better
match, then it's the value of the from parameter.

As if this wasn't bad enough, QByteArray implcitly converts to const
char* by default!

A follow-up patch will therefore deprecate the (ptr, size) overloads,
so we de-inline the QByteArrayView ones to avoid having to touch the
implementation once more.

Found during 6.3 API review.

Pick-to: 6.3
Change-Id: I9640e0bdd298d651511adebcc85f314db9221d34
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
2022-01-23 09:48:28 +01:00
..
CMakeLists.txt CMake: Regenerate projects to use new qt_internal_ API 2020-09-23 16:59:06 +02:00
tst_qbytearraymatcher.cpp Q(Static)ByteArrayMatcher: manage indexIn() overloads 2022-01-23 09:48:28 +01:00