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* Use SPDX license identifiersLucie Gérard2022-05-161-38/+2
| | | | | | | | | | | | | Replace the current license disclaimer in files by a SPDX-License-Identifier. Files that have to be modified by hand are modified. License files are organized under LICENSES directory. Task-number: QTBUG-67283 Change-Id: Id880c92784c40f3bbde861c0d93f58151c18b9f1 Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org> Reviewed-by: Lars Knoll <lars.knoll@qt.io> Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
* QtCore: Replace remaining uses of QLatin1String with QLatin1StringViewSona Kurazyan2022-03-261-3/+3
| | | | | | | Task-number: QTBUG-98434 Change-Id: Ib7c5fc0aaca6ef33b93c7486e99502c555bf20bc Reviewed-by: Edward Welbourne <edward.welbourne@qt.io> Reviewed-by: Marc Mutz <marc.mutz@qt.io>
* QSettings: port API from QString to QAnyStringView keysMarc Mutz2022-03-231-0/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With the public interface ported to QAnyStringView, we can now internally optimize memory allocations _in a central place_ (e.g. by returning std::u16string or QVarLengthArray<QChar> from normalizeKey() instead of QString). But first we needed to get rid of all the unwarranted allocations in user code. Effects on Linux AMD64 stripped C++20 release builds: GCC 11.2 libstdc++ (TEXT -= 6.5%): text data bss dec hex filename 635148 10992 2824 648964 9e704 tst_qsettings-01-baseline 593691 10992 2824 607507 94513 tst_qsettings-02-qanystringview Clang 10.0.0 libc++ (TEXT -= 11.6%(!)): text data bss dec hex filename 790336 10640 2832 803808 c43e0 tst_qsettings-01-baseline 698572 10640 2832 712044 add6c tst_qsettings-02-qanystringview That's the beauty of QAnyStringView: transparently reducing temporary QString creation; and the simplest code is also the most efficient. [ChangeLog][QtCore][QSettings] Keys can now be passed as QAnyStringView (was: QString). The most efficient way to pass literal keys is now "key"_L1, the backwards-compatible way is QStringLiteral("key"). Fixes: QTBUG-101390 Change-Id: I510fb4ce17ef109dac7c9cdc5d90ede0d1a9db5f Reviewed-by: Edward Welbourne <edward.welbourne@qt.io> Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
* QObject: port setObjectName() to QAnyStringViewMarc Mutz2022-03-151-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ... while keeping the QString overload for users that pass actual QStrings (e.g. QStringLiteral). However, QString and QAnyStringView cannot be overloaded (they're ambiguous for most arguments), so we need to make one of them a Q_WEAK_OVERLOAD. Normally, we'd make the new function weak and keep the old function as-is, but, here, that would be beside the point, because all callers would continue to resolve to the QString overload, and nothing would call the QAnyStringView one. So we really want the old function to be the Q_WEAK_OVERLOAD, so that the QString overload is only selected when actual QStrings are passed. That means we need to leave the old function in a compat build (compiled in, but not visible in the public header). Since Q_WEAK_OVERLOADs cannot be (easily) exported (they're templates), make it call a private function (which can be, and is, exported). Reviewers may questions whether one can overload setObjectName() and template <typename = void> setObjectName() The answer is that we can, because templates mangle differently from normal functions. We can even call the template function (with explicit template arguments), as seen in removed_api.cpp. This adapts the interface of the function to how most users use it: They pass QLatin1String or just const char[]. Only very few passed QStringLiteral, which, ignoring that fact that it produces a ton of code for the temporary QString's destructor that's never executed, would have been, and continues to be, the optimal way of passing data, modulo plugin bugs (QTBUG-51602, QTBUG-49061). [ChangeLog][QtCore][QObject] Added setObjectName() overload taking QAnyStringView. Fixes: QTBUG-101393 Change-Id: I1243545614754b4978d4c8641460980b6b293c1a Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
* QDataStream: make qfloat16 streaming a non-memberMarc Mutz2022-03-141-0/+17
| | | | | | | | | | | | | | | | Remove the member function from the API and re-add it as a hidden friend on qfloat16, where it will be a complete type. [ChangeLog][QtCore][Potentially Souce-Incompatible Changes] The qfloat16 QDataStream operators are now hidden friends and only found by argument-dependent lookup. Previously, these were member functions on QDataStream. Fixes: QTBUG-93499 Pick-to: 6.3 Change-Id: Ib3d4df7a3fe3a9d0938f3be8b70b50fef0416262 Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org> Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Move QBindingStorage methods marked for removal to removed_apiSona Kurazyan2022-02-161-0/+11
| | | | | | | | From the API review. Pick-to: 6.3 Change-Id: I676ff811a3b3d43ebcbee78ed0210d669d642947 Reviewed-by: Marc Mutz <marc.mutz@qt.io>
* QUrl: Use Q_CORE_REMOVED_SINCE instead of explicit version checksIevgenii Meshcheriakov2022-02-031-0/+12
| | | | | | | | | Use Q_CORE_REMOVED_SINCE macro for fromAce()/toAce() API changes. Pick-to: 6.3 Change-Id: I057c6d648c2141929f04e4b4c4a38ba3275261ab Reviewed-by: Marc Mutz <marc.mutz@qt.io> Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
* QLocale: Use Q_CORE_REMOVED_SINCE instead of explicit version checksIevgenii Meshcheriakov2022-02-031-0/+12
| | | | | | | | | | | Use Q_CORE_REMOVED_SINCE macro for languageToCode()/codeToLanguage() API changes. Pick-to: 6.3 Change-Id: I8cc5279b1272165541c345241af49523c0f25737 Reviewed-by: Marc Mutz <marc.mutz@qt.io> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
* Make one QT_REMOVED_SINCE/QT_BUILD_REMOVED_API per moduleMarc Mutz2022-02-011-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A single global QT_REMOVED_SINCE will start hurting us once more modules downstream of QtCore start using the mechanism. With every use of feature, the set of code that needs to compile under QT_BUILD_REMOVED_API increases. Since we use QT_REMOVED_SINCE in situations where overloading the new and the old function don't work in general, this means all code included by any removed_api.cpp needs to be very carefully written to ensure that any calls to the overload set formed by the combination of old and new function(s) don't create ambiguities. Likewise, the set of APIs that change semantics under QT_BUILD_REMOVED_API also increases. At some point, the combination of removed_api.cpp including almost every module header and almost every header exposing source-incompatibilities when included in removed_api.cpp will make maintenance a headache. By making QT_REMOVED_SINCE and QT_BUILD_REMOVED_API per-module (QT_CORE_REMOVED_SINCE, ...), easy now that we generate the export macros using CMake, we limit the scope of this problem to the module using the feature. Downstream modules (say, QtWidgets) will now see the QtCore API like every other user, even in the widgets/compat/removed_api.cpp TU. Pick-to: 6.3 Change-Id: I177bc7bd5aa8791639f97946c98e4592d2c7f9d9 Reviewed-by: Edward Welbourne <edward.welbourne@qt.io> Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org> Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* QCalendar: replace two overloads with one QAnyStringView functionMarc Mutz2022-01-301-0/+8
| | | | | | | | | The backend was already ported, so this is just about applying QT_REMOVED_SINCE and updating the docs. Change-Id: I2c78908deb9cdb3cee19ce8bc148ab3117c1ad9a Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org> Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
* Move private QOperatingSystemVersion::compare to removed_apiMårten Nordheim2022-01-251-0/+8
| | | | | | | | | From the API review. Pick-to: 6.3 Change-Id: I9877990f75189b99a372ea6342d07a7031228ac7 Reviewed-by: Marc Mutz <marc.mutz@qt.io> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Q(Static)ByteArrayMatcher: manage indexIn() overloadsMarc Mutz2022-01-231-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* QStaticByteArrayMatcher: fix searching in 2+GiB haystacksMarc Mutz2022-01-231-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a test (same techniques as for the 4+GiB check in tst_qcryptographichash). Takes ~1s to build the 4GiB test data here, and skips when RAM is too low: $ qtbase/tests/auto/corelib/text/qbytearraymatcher/tst_qbytearraymatcher haystacksWithMoreThan4GiBWork [...] QDEBUG : tst_QByteArrayMatcher::haystacksWithMoreThan4GiBWork() created dataset in 891 ms [...] $ (ulimit -v 2000000; qtbase/tests/auto/corelib/text/qbytearraymatcher/tst_qbytearraymatcher haystacksWithMoreThan4GiBWork) ********* Start testing of tst_QByteArrayMatcher ********* [...] SKIP : tst_QByteArrayMatcher::haystacksWithMoreThan4GiBWork() Could not allocate 4GiB plus a couple hundred bytes of RAM. Loc: [/home/marc/Qt/qt5/qtbase/tests/auto/corelib/text/qbytearraymatcher/tst_qbytearraymatcher.cpp(242)] [...] Found during 6.3 API review. [ChangeLog][QtCore][QStaticByteArrayMatcher] Fixed searching in strings with size > 2GiB (on 64-bit platforms). Fixes: QTBUG-100118 Pick-to: 6.3 Change-Id: I1df420965673b5555fef2b75e785954cc50b654f Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* QByteArrayList: optimize 32-bit builds of legacy join() helperMarc Mutz2022-01-221-1/+3
| | | | | | | | | | | | | | On 32-bit machines, qsizetype is int, so we don't actually need to QT_REMOVE_SINCE the QByteArrayList_join() helper, because it didn't change. Thanks to Thiago for showing me the QT_POINTER_SIZE trick in a similar change to QVersionNumber. Pick-to: 6.3 Change-Id: Iae6e315107e42da51fcb4e7325b6d40b9c3fe0bc Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
* QVersionNumber: port fromString() to QAnyStringViewMarc Mutz2022-01-181-17/+9
| | | | | | | | | | | | | | | | | We can handle the UTF-8 case by reinterpreting it as Latin-1. This way, the suffixIndex stays valid as a return value. As a drive-by, optimize away toLatin1() calls by using a QVLA. We really need a better way of converting UTF-16 -> L1 than qt_to_latin1()... [ChangeLog][QtCore][QVersionNumber] fromString() now takes QAnyStringView (was: QString, QStringView, QLatin1String) and a qsizetype pointer (was: int pointer). Change-Id: I86abaadba2792658fbf93ccd1e0b86e3302c697c Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* QVersionNumber: change int to qsizetype in fromString()Thiago Macieira2022-01-171-1/+35
| | | | | | | | | This completes the update to qsizetype in this class, adding a couple of methods that need to be removed in Qt 7. They're only required where int is not qsizetype (i.e., 64-bit platforms). Change-Id: I0e5f6bec596a4a78bd3bfffd16c9de29bec4c637 Reviewed-by: Marc Mutz <marc.mutz@qt.io>
* QMetaType: port the BC fix for id() to new QT_REMOVED_SINCEMarc Mutz2021-12-061-0/+17
| | | | | | | The allows qmetatype.cpp compilation to enjoy PCH again. Change-Id: I47c5af33a5dbc930ee4c120b254e732c52bc2369 Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* QByteArrayList: fix narrowing in join() implementations [2/2]Marc Mutz2021-11-051-0/+7
| | | | | | | | | | | | | | | | | | | We forgot to adjust the interface and implementation of join() to the int → qsizetype change in Qt 6. This part of the two-part patch fixes things in a non-forwards-BC way, so it can't be picked into released versions. The forwards-BC part is in the first patch of the series. We can't just replace the int seplen with qsizetype, because qsizetype is an alias to int on 32-bit platforms. So, pass the separator by QByteArrayView. [ChangeLog][QtCore][QByteArrayList] Fixed a bug when calling join() with separators of length > INTMAX. Change-Id: I2ccc61de1c8901ac5504aea1ebd895d12dbcb064 Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
* QUuid: port to QAnyStringViewMarc Mutz2021-07-301-0/+25
| | | | | | | | | | | | | | | | | Remove the QString/QStringView/QLatin1String/const char* overloads from the API, but not the ABI. As a drive-by, replace a use of QStringView::left() by truncate(), as suggested by a comment. [ChangeLog][QtCore][QUuid] The from-string constructor and the fromString() function now take QAnyStringView (was: overload set with a subset of QString, QByteArray, const char*, QLatin1String, QStringView each). Change-Id: If7fa26cfbef9280480c78b669d9f5f14118995ed Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* QUuid: port fromRfc4122() to QByteArrayViewMarc Mutz2021-07-281-0/+7
| | | | | | | | | Remove the QByteArray overload from the API, but not the ABI. Adapt callers. Change-Id: I88aa09cbca3b89d0b249ce336ebe49c4b352c9e1 Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* QtCore: clean up API removalsMarc Mutz2021-07-281-0/+63
Use the same new pattern as in QtWidgets. Amends de18b3ff370543b5b99bd068b871a2cd677cf9f3. Change-Id: Ia1cbd40aa7a7efc9a954d22b599e13a19a6a9266 Reviewed-by: Lars Knoll <lars.knoll@qt.io>
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