[ChangeLog][QtCore][Meta Objects] The QMetaObject::invokeMethod() taking
a method name by string, QMetaObject::newInstance(), and
QMetaMethod::invoke() now support more than 10 arguments.
[ChangeLog][QtCore][Meta Objects] The use of the Q_ARG and Q_RETURN_ARG
macros is now optional with QMetaObject::invokeMethod(),
QMetaObject::newInstance(), and QMetaMethod::invoke(): the type name
will be obtained from the C++ type (the same as QMetaType). The function
qReturnArg() can be used in place of the Q_RETURN_ARG macro. The macros
are still useful in rare conditions where the type was typedef'ed from
its original name.
Change-Id: I36b24183fbd041179f2ffffd17022a2b48c7639b
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
The patch includes the following replacements:
* QMetaType::type("name") -> QMetaType::fromType<Type>().id()
* QMetaProperty::type() -> QMetaProperty::typeId()
* QVariant::Type -> QMetaType::Type
* qRegisterMetaType<T>("name") -> qResigeterMetaType<T>()
* The static QMetaType::{load,save} methods are replaced with
non-static versions
* Replace QCOMPARE(property.type(), QVariant::UserType) with
QCOMPARE_GT(property.typeId(), QMetaType::User), because the
deprecated type() method was treating each custom type
(id >= QVariant::UserType) as QVariant::UserType, while the
typeId() method simply returns the actual id.
As a drive-by: remove unneeded QMetaType registration tests
as we have tst_QMetaType to check it.
Task-number: QTBUG-104858
Change-Id: Ia08e002efdf07ff83366a5193164dba96a956f9a
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
The most common changes are:
* Replace QMetaType::type("name") with QMetaType::fromName("name").id()
or QMetaType::fromType<Type>().id()
* QMetaType::typeName(int) -> QMetaType(int).name()
* QMetaType::typeFlags(int) -> QMetaType(int).flags()
* QMetaType::metaObjectForType(int) -> QMetaType(int).metaObject()
* The static QMetaType::{load,save} methods are replaced with
non-static versions
* The static QMetaType::{create,destroy,construct, destruct} methods
are guarded by QT_DEPRECATED_SINCE calls. The tests are also
extended with non-static calls where they were missing. Fixed
potential memory-leaks in these tests.
Add separate unit-tests for deprecated APIs and guard them with
QT_DEPRECATED_SINCE
As a drive-by: use nullptr instead of 0 in some places
Task-number: QTBUG-104858
Change-Id: I4b0cdd29bc197c186b835002372240aae3098c33
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Since Qt 6.0, QMetaType stores the name obtained from the C++ compiler,
which means we know a type like Qt::Alignment by its proper, full name
of QFlags<Qt::AlignmentFlag>. However, the meta object records only the
bare name of the enumeration, not the full flags.
Pick-to: 6.2 6.3 6.4
Fixes: QTBUG-105932
Fixes: QTBUG-96185
Change-Id: Ic6547f8247454b47baa8fffd170eab977e306377
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Unifies our approach to calling CoInitializeEx and CoUninitialize,
removing a lot of boilerplate in the process, and also fixes a few
bugs where we would incorrectly balance our calls to CoInitializeEx
and CoUninitialize.
The optimistic approach of qfilesystemengine_win.cpp of calling
CoCreateInstance without initializing the COM library explicitly
has been removed, as calling CoInitializeEx should be a noop in
the situation where it's already been loaded.
Change-Id: I9e2ec101678c2ebb9946504b5e8034e58f1bb56a
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
It does a check to ensure you aren't comparing outside the container.
Fixes: QTBUG-106001
Pick-to: 6.2 6.3 6.4
Change-Id: Ic6547f8247454b47baa8fffd170eef346b7f4f24
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
The QScopedPointer::take() call in comparison() test was used to
avoid a double-deletion error, because the test is creating two
QScopedPointer instances referencing the same memory.
Avoid the take() call by providing a custom DummyDeleter and
managing the memory by the extarnal std::unique_ptr.
As the test now has no test-cases for QScopedPointer::take()
calls, create a new test for this deprecated API, and guard
it with QT_DEPRECATED_SINCE checks.
Task-number: QTBUG-104858
Change-Id: Iecc28d44d76c9ce5835e6b1a1df7db30e2a9ca25
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
The most common changes are:
* removing the explicit tests for deprecated APIs
* QMultiMap::insertMulti() -> QMultiMap::insert()
* QMultiMap::insert(QMultiMap) -> QMultiMap::unite(QMultiMap)
Add separate tests for the deprecated APIs, and guard them
with QT_DEPRECATED_SINCE() checks.
Task-number: QTBUG-104858
Change-Id: Ifb79212d07f20028d93d75f2b32ec3785cc93b22
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* QVariant::Type -> QMetaType::Type.
* Guard the test for deprecated fromUtf16(const ushort *) overload with
QT_DEPRECATED_SINCE check.
* Use fromUtf16(const char16_t *) overload in other places.
As a drive-by: fix formatting in the affected lines.
Task-number: QTBUG-104858
Change-Id: I9fa3a935bca36e97f934f673e2fc07b451c72872
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
For those, moc does know their type ID, and yet they may be still
forward-declared in the C++ side, so the meta object may have recorded a
null pointer in the metatype array.
Fixes: QTBUG-105832
Change-Id: Ic6547f8247454b47baa8fffd170dae07c0813dc7
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
These functions are marked as deprecated in future Qt releases.
Task-number: QTBUG-104858
Change-Id: I25d2932455d8c9e3e2d722b1c48fc2cfa2d1e679
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
The value will be propagated from Qt build.
Task-number: QTBUG-104858
Change-Id: Iae2c32c3037438f41b92f9ee28004f30eb4e3210
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
The QObjectPrivate::declarativeData member is stored in a union with
currentChildBeingDeleted. The QObject destructor always sets the
currentChildBeingDeleted member of the union. It also sets the
isDeletingChildren bool, which is the only way to find out which union
member we can safely access.
While the QObject destructor is deleting children and isDeletingChildren
is set, we must not access the declarativeData member of the union.
Add a test case that initializes the function pointers for the
declarative handlers and constructs a situation where an object
emits a signal while it is destroying children.
Fixes: QTBUG-105286
Pick-to: 6.4 6.3 6.3.2 6.2 5.15
Change-Id: Iea5ba2f7843b6926a8d157be166e6044d98d6c02
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
The new name describes the behavior in a better way.
[ChangeLog][Build System] The QT_DISABLE_DEPRECATED_BEFORE macro is
renamed to QT_DISABLE_DEPRECATED_UP_TO. The old name is deprecated, but
is still recognized if it is defined during configuration and the new
name is not defined.
Task-number: QTBUG-104944
Change-Id: Ifc34323e0bbd9e3dc2f86c3e80d4d0940ebccbb8
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Android kills this test case which tries to use too much memory,
or it times out.
Pick-to: 6.4 6.3 6.2
Task-number: QTQAINFRA-4748
Change-Id: Ifce92533d50f4c463ee10fe80e7654ad16172a35
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
Windows VMs are provisioned with shared folders that are available as
\\${COMPUTERNAME}\testshare(writable)
so we don't need to access a remote SMB server over network anymore just
to test whether our string-parsing code handles UNC paths correctly.
Add a QTest::uncServerName() helper function to the shared filesystem.h
header and use that instead of QtNetworkSettings::winServerName. The
latter is now only used in tst_NetworkSelfTest::smbServer().
Pick-to: 6.4
Change-Id: Id0da66369ad0f4a980d612de2a31a391f1192253
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
The _data function is useless without its test function (and it's not
used in other _data functions).
Pick-to: 6.4 6.3 6.2 5.15
Change-Id: I7aa6006ed1a9d89008577b750af4ea717dae237f
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
The way the Qt 6.0 QMetaTypeInterface was designed, using a static
inline variable in a template, would normally require the linker and
dynamic linker to merge all copies and choose a single copy as the
official one. But because of hidden visibility and of Windows DLLs,
QMetaType already copes with multiple copies NOT getting merged. So we
may as well ask the linkers not to bother and use simpler, local
relocations to find those symbols.
They are all supposed to still be equivalent and it's an ODR violation
if they're not.
The Apple ld64 linker complains if you use this type of global
relocation:
ld: warning: direct access in function
[...]
to global weak symbol
'QtPrivate::QMetaTypeInterfaceWrapper<int>::metaType'
Fixes: QTBUG-93471
Pick-to: 6.3 6.4
Change-Id: Id0fb9ab0089845ee8843fffd16f98a10aa719434
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Because of the template shenanigans. This is just to make sure.
Pick-to: 6.4
Change-Id: Id0fb9ab0089845ee8843fffd16f989e7d555894f
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
ownMethodIndex works for all kind of methods, also for constructors.
Therefore, remove the assertion there (that checks for non constructors)
and add a test in qtbase so it does not happen again.
The test broken by the assertion is in qtdeclarative:
tst_QJSEngine::newQMetaObject().
Also rename QMetaMethodPrivate::ownConstructorIndex() to
ownConstructorMethodIndex() as the previous naming implied that
ownMethodIndex() could not be used for constructors.
amends b73ab954df
Task-number: QTBUG-105360
Change-Id: I0244993ed79bee055645b5443f5d02e1c089a6c6
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Those were workarounds to passing a comma to a macro, but there are ways
around it. The simplest is to just use variadic macros; another, which
has been applied to Q_DECLARE_METATYPE for a long time, is to define an
alias to the thing you're trying to use.
Change-Id: Ie4bb662dcb274440ab8bfffd17097fbf0c53eabc
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
The vast majority of in-tree users pass simple and short C string
literals as the value. By porting to QByteArrayView, we document that
we'll accept non-NUL-terminated data, and do the NUL-termination
internally, using SSO'ed std::string, saving memory allocations in the
common case of short strings.
I didn't bother to check which direction std::string takes for
nullptrs these days (there was a change accepted in that area for
C++20 or 23), so play it safe and protect against them.
Follow-up to
Task-number: QTBUG-105302
Change-Id: I2369acc62f1d5cbc26135396cfe0602d8c75300c
Reviewed-by: Sona Kurazyan <sona.kurazyan@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
The old code assumed that a QByteArray's data() is always
NUL-terminated. Due to the conflation of owners and non-owners in
QByteArray (but also in case we ever get efficient substringing), this
is not always the case, e.g. QByteArray::fromRawData() does not ensure
NUL-termination.
From QString::utf16(), we learn that the condition to check for is
QArrayData::isMutable(). After working around the fact that
QByteArray::data_ptr() doesn't exist for const QBAs and that empty
QBAs always refer to QByteArray::empty_, which is !isMutable(), we can
detect this situation and re-allocate without introducing new API.
This is the fix for Qt ≤ 6.4. For Qt 6.5, we'll port the function to
QByteArrayView.
Pick-to: 6.4 6.3 6.2 5.15
Fixes: QTBUG-105302
Change-Id: I3416535ab09d601e0e87b2767f2c024ba1217e64
Reviewed-by: Sona Kurazyan <sona.kurazyan@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
The std::boyer_moore_searcher is buggy for older verions of Microsoft's
STL, and missing in AppleClang's libc++ with an inefficient fall back.
Fixes: QTBUG-100236
Change-Id: Ic3cc916946546d2ef78456cd15e1425d957b989d
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
When tst_QDateTime::fromStringStringFormat_localTimeZone_data() skips
due to feature timezone being undefined, it should report that as the
issue, rather than claiming the system doesn't support the particular
zones used in the test.
Change-Id: I9837ac95c6d92317fbec7fcca184f7b7e6f81441
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Also document the (seldom helpful) handling of over-long repeats of a
format. Add test to QDateTime and amend QLocale test.
[ChangeLog][QtCore][QDateTime] Doubling the 'z' format in a date-time
or time format string now produces the same output as a single 'z'.
Previously, this would have produced two copies of the milliseconds
field (eliding any trailing zeros in each). Contrast with 'zzz', which
produces the full milliseconds field, including any trailing zeros.
Change-Id: I4c60462b062fee4079370096d745c191c1939506
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Microsoft recommends to use CoInitializeEx()
and SetWindowLongPtr()/GetWindowLongPtr() in new code.
Use COINIT_DISABLE_OLE1DDE to avoid overhead of
initializing and using obsolete technology.
Pick-to: 6.4
Change-Id: I9d16943e864d4487dd4f46fd9325579c298c52b9
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
CMakeLists.txt and .cmake files of significant size
(more than 2 lines according to our check in tst_license.pl)
now have the copyright and license header.
Existing copyright statements remain intact
Task-number: QTBUG-88621
Change-Id: I3b98cdc55ead806ec81ce09af9271f9b95af97fa
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
The rewrites in a1c34d8bd0,
0f76e55bc4 and in commit
b73ab954df didn't do this right, though no
problem ended up happening. In particular, the constructor one failed to
check if there were even more parameters.
Change-Id: I6f936da6f6e84d649f70fffd1706f827ba635584
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Problem description:
--------------------
Assume we have two properties, P1 and P2. Assume further that we assign
a binding to P2, so that it depends on P1. Let the binding additionally
capture some (non-QProperty) boolean, and only create the dependency to
P1 if the boolean is true.
The state afterwards is
P1:[p1vaue|firstObserver]
|
|
v
---[p2binding]
/
P2:[p2value|binding]
If the boolean is set to false, and P1 changes its value, we still
correctly re-evaluate the binding and update P2's value. However, during
binding evaluation we will notice that there is no further dependency
from P2 on P1, and remove its observer.
The state afterwards is
P1:[p1vaue|firstObserver=nullptr]
---[p2binding]
/
P2:[p2value|binding]
Then, during the notify phase, we traverse the observer's again,
starting from P1's firstObserver. Given that it is nullptr now, we never
reach P2's binding, and thus won't send a notification from it.
Fix:
----
We store a list of all visited binding-observers (in a QVarLengthArray,
to avoid allocations as long as possible). After the binding evaluation
phase, we then use that list to send notifications from every binding
that we visited. As we already have a list of all bindings, we no longer
need to recurse on binding-observes during the notification process;
instead, we only need to deal with static callbacks and ChangeHandlers.
The pre-existing notification logic is still kept for the grouped update
case, where we already have a list of all delayed properties, and should
therefore not encounter the same issue. Unifying its codepath with the
existing logic is left as an exercise for a later patch.
Fixes: QTBUG-105204
Task-number: QTBUG-104982
Pick-to: 6.4 6.3 6.2
Change-Id: I2951f7d9597f4da0b8560a64dfb834f7ad86e757
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Sami Shalayel <sami.shalayel@qt.io>
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
We pass a pointer to uninitialized memory to QMetaType::create().
There's no harm because we're using the invalid QMetaType, but GCC is
actually right to complain for any other type.
qtestcase.h:54:25: warning: ‘buf’ may be used uninitialized [-Wmaybe-uninitialized]
qmetatype.h:454:11: note: by argument 2 of type ‘const void*’ to ‘void* QMetaType::create(const void*) const’ declared here
Pick-to: 6.3 6.4
Change-Id: I3859764fed084846bcb0fffd1703eb7967acf0d7
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
QRegularExpression::match (and globalMatch) is currently overloaded
for QString and QStringView. This creates a subtle API asymmetry:
QRegularExpression re;
auto m1 = re.match(getQString()); // OK
auto m2 = re.match(getStdU16String()); // Dangling
This goes against our decision that every time that there's a possible
lifetime issue at play, it should be "evident". Solving the lifetime
issue here is possible, but tricky -- since QRegularExpression
is out-of-line, one needs a type-erased container for the input
string (basically, std::any) to keep it alive and so on.
Instead I went for the simpler solution: deprecate match(QStringView)
and introduce matchView(QStringView) (same for globalMatch). This
makes it clear that the call is matching over a view and therefore
users are supposed to keep the source object alive.
Drive-by, remove the documentation that says that the QString
overloads might not keep the string alive: they do and forever will.
[ChangeLog][QtCore][QRegularExpression] Added the matchView()
and globalMatchView() functions that operate on string views.
The match(QStringView) and globalMatch(QStringView) overloads
have been deprecated.
Change-Id: I054b8605c2fdea59b556dcfea8920ef4eee78ee9
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Use the QMetaMethodPrivate::invokeImpl() function we added in the last
commit, without recreating the method signature. Instead, only do a
comparison on the method name and allow invokeImpl() to decide whether
this method can be called with the given arguments. This will allow
invokeImpl() to have more flexibility in deciding if the arguments match,
using the stored metatype information.
Change-Id: I36b24183fbd041179f2ffffd17021a86484bfab6
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
This adds an internal method to QMetaMethodPrivate to do the work of
actually placing the call on a given meta method. This rewrite should
make the code clearer, but make no otherwise perceptible difference in
behavior.
The next commit will rewrite QMetaObject::invokeMethod to use this new,
internal function to avoid doing a lot of string allocations.
Change-Id: I36b24183fbd041179f2ffffd170219c0deaaf7f5
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
This is in use in tst_qdbusinterface.cpp, so let's have it here to make
sure it works:
QVERIFY(QMetaObject::invokeMethod(&iface, "ping",
Q_RETURN_ARG(QDBusVariant, retArg),
Q_ARG(QDBusVariant, arg),
Q_ARG(QDBusVariant, arg2),
Q_ARG(QDBusVariant&, retArg2)));
Change-Id: I36b24183fbd041179f2ffffd170271424c048292
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
We should fail to even find the method. `QString' and `QString&` are not
compatible.
Change-Id: I36b24183fbd041179f2ffffd170259bcf07fd459
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
The type MyUnregisteredType needs to be only forward-declared for the
trick to work. The issue is not about registration, because since commit
fa987d4441 ("MetaObject: Store the
QMetaType of the methods"), we will record the meta type of the type
anyway, which will eventually allow the meta object to actually find
this type.
Instead, the tests are valid for a type that is only forward-declared.
Change-Id: I36b24183fbd041179f2ffffd1702182746f7c1b2
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
In one of the three calls to customConstruct() -- QVariant::detach() --
we've already checked that the type is valid, so don't re-emit the
warning there.
Change-Id: I3859764fed084846bcb0fffd1703a3c7c0fb3164
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
We can implement the trivial {default,copy,move} construction outselves
inside qmetatype.cpp and qvariant.cpp, simplifying the QMetaType
interface object, removing up to three relocations per QMTI.
This adds the testing for QMetaType::isXxxConstructible and
isDestructible that couldn't be added before.
Change-Id: Ic44396b31ba04712aab3fffd16ff0a28f541d507
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
