Reimplementations of connectNotify() and disconnectNotify() can
assume that the signal argument is in normalized form, but after the
introduction of the Qt5 meta-object format, it could happen that it's
not.
The problem is that the internal QArgumentType class, which attempts
to resolve a typename to a type id, was calling QMetaType::type().
QMetaType::type() falls back to trying the normalized form of the
typename if the original argument can't be resolved as a type (this
behavior isn't documented, but that's how it works). This means that
e.g. QMetaType::type("const QString &") returns QMetaType::QString.
Since QMetaObjectPrivate::indexOfMethodRelative() (more specifically,
the methodMatch() helper function) prefers to compare type ids
over typenames (since the type ids are stored directly in the meta-
object data for built-in types), the method lookup would *succeed*
for signatures with non-normalized built-in typenames as parameters.
QObject::connect() would then think that it did not have to
normalize the signature (see "// check for normalized signatures").
The consequence was that the original, non-normalized form got
passed to connectNotify().
This commit introduces an internal typename-to-type function that
is the same as QMetaType::type(), except it doesn't try to normalize
the name. This way, the only place where normalization can occur in
the signature-to-meta-method processing is through the calls to
QMetaObject::normalizedSignature() in QObject::connect() itself.
The implication is that there are now cases where the method
signature will be decoded and processed twice, where processing it
once was sufficient before. On the other hand, it is consistent with
the pre-Qt5-meta-object behavior, where we predict that the
signature is already normalized, and only perform (comparatively
costly) normalization if the initial lookup fails.
Change-Id: Ie6b60f60b0f9a57ebd378d980329dac62d57bbd9
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
This API will fully replace the const char *-based connectNotify()
and disconnectNotify() in Qt5; the old functions will be REMOVED
before Qt 5.0 final.
The new implementation fixes the long-standing issue of
connectNotify() not being called when using the (internal)
index-based QMetaObject::connect() (e.g., from QML).
As with the old API, there are still two "unintuitive" behaviors
concerning disconnectNotify():
- disconnectNotify() is not called when the signal is disconnected
using the QObject::disconnect(QMetaObject::Connection) overload.
- disconnectNotify() is not called when a receiver is destroyed
(i.e., when a connection is implicitly removed).
The old versions of connectNotify() and disconnectNotify() are kept
for now, and they are still called. They will be removed once known
existing reimplementations (e.g., QtNetwork, QtDBus) have been
ported to the new API.
Change-Id: I8b4f007f3c6d89199c1ba04a3e23c8ca314e0896
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
That was a regression introduced in 1c5db1aff
Example:
signals: int *someSignal();
would produce this code:
int* _t0 = int*();
which does not compile
So have special handling for pointer to change it to '= 0'
Change-Id: Ie695e15e309d15c3cfd5c5a69ac8bf6d61ae9915
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
- Fixed path was failing to find sub program.
Change-Id: I86f1a6941e244c9bc25ad0441cc7a441607560b7
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
For Qt5 we no longer want to support the older revisions due to the
dual codepaths that must be maintained, and because the format of the
meta-object data is quite different in revision 7.
The dual codepaths have been replaced by asserts that indicate the
revision in which the feature was introduced, and the older-revision
fallbacks have been removed.
It's not possible to build code generated by moc that has
revision <= 6 with Qt5 because the type of the
QMetaObject::stringdata member changed from const char * to const
QByteArrayData *. For the same reason it's not possible to build a
dynamic meta-object generator targeting revision <= 6 with Qt5.
Hence, too old meta-objects will be caught at compile time, and the
code will have to be ported to generate revision 7 (e.g., by running
Qt5's moc on the original class declaration).
Change-Id: I33f05878a2d3ee3de53fc7009f7a367f55c25e36
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Since the introduction of QMetaType::UnknownType, void is a proper
meta-type, and the normalized form of "void" should be "void", not
an empty string.
Add more tests to ensure that we do remove "void" in the one case
where it actually should be removed (e.g. "foo(void)").
Change-Id: I72dc2d24da67cf52da00c678f50213cff1b92e25
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
This actually involved tiding up QObject sources a little bit
to clearly separate QString / QRegExp overloads of findChildren.
The corresponding qFindChildren overload for MSVC 6 compatibiltiy
was *not* added.
Change-Id: I84826b3df9275a9bda03608a5b66756890eda6f8
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
In Qt5 the meta-data format will be changed to not store the
method signature string explicitly; the signature will be
reconstructed on demand from the method name and parameter type
information.
The QMetaMethod::signature() method returns a const char pointer.
Changing the return type to QByteArray can lead to silent bugs due to
the implicit conversion to char *. Even though it's a source-
incompatible change, it's therefore better to introduce a new
function, methodSignature(), and remove the old signature().
Task-number: QTBUG-24154
Change-Id: Ib3579dedd27a3c7c8914d5f1b231947be2cf4027
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
Up to and including meta-object revision 6, string data have been
stored as 0-terminated C-style strings, that were made directly
accessible as const char pointers through the public API
(QMetaMethod and friends).
This commit changes moc to generate an array of QByteArrayData
instead, and adapts the QObject kernel accordingly.
Generating an array of QByteArrayData (byte array literals)
means that the strings can now be returned from public (or private)
API as QByteArrays, rather than const char *, with zero allocation or
copying. Also, the string length is now computed at compile time
(it's part of the QByteArrayData).
This commit only changes the internal representation, and does
not affect existing public API. The actual (C) string data that the
byte array literals reference still consists of zero-terminated
strings. The benefit of having the QByteArrayData array will only
become apparent in the upcoming meta-object data format change, which
changes the format of property and method descriptors.
Support for the old meta-object string data format was kept; the
codepaths for old revisions (6 and below) will be removed in a
separate commit, once all the other meta-object changes are done and
affected code has been adapted accordingly.
Task-number: QTBUG-24154
Change-Id: I4ec3b363bbc31b8192e5d8915ef091c442c2efad
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
remove "header" and assignmets which are defaults or bogus,
reorder some assignments.
Change-Id: I67403872168c890ca3b696753ceb01c605d19be7
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
When configuring with -fast on Windows, a directory which contains two
.pro files, one SUBDIRS and one not, will have the SUBDIRS Makefile
silently clobbered by the non-SUBDIRS Makefile. In practice, this may
cause various subdirectories to be silently excluded from the build.
Rearrange .pro files for this test to avoid triggering this bug.
See also e9015b3bc8.
Task-number: QTBUG-21168
Change-Id: I18fac1ac636fdc6b2aaee1b4cdfee9c4bc2a77ff
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
They create noise in the test results.
Change-Id: I40e7239ba7cd41bec577fe8220c86476553a6502
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
- Made test depend on subprogram to make sure it was there when
test ran.
- install signalbug subprogram
Change-Id: Ie0a19e52d131adcd17c97b263389aecffb81520e
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
Reviewed-by: Jason McDonald <jason.mcdonald@nokia.com>
Put in qconfig.h whether qt is compiled with reduced relocations.
When using -Bsymbolic-functions (enabled by default on Qt)
but not -fPIE, the comparison of the function pointers fail
because the addresses are different in Qt, and in the executable.
Hence we now enable -fPIE by default on qmake, and force a compilation
error when it is not enabled and built with reduced relocations.
Done-with: Sune Vuorela <sune@vuorela.dk>
Change-Id: Ib3fdba06fab6e8a93b75b4c6cf16cc973ab335db
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
The test was failing at:
QCOMPARE(property.userType(), qMetaTypeId<CustomType*>());
The CustomType* metatype was not registered before this part of the
test.
qMetaTypeId<T> will register the metatype for T before returning it if
it is not yet registered, while QMetaProperty::userType() returns 0 if
the metatype is not yet registered. However, the order of evaluation of
these two expressions in the above statement is technically undefined.
Apparently, gcc evaluates the arguments in order from right to left,
allowing the test to pass, while clang evaluates the arguments in order
from left to right, causing the test to fail.
Change-Id: I5059556e860cec29b57c31e4e26f46cf9e6055da
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
There is no point in keeping separate values which should mean the
same.
QVariant::UserType was used also to construct a valid, null QVariant,
containing an instance of unknown custom type. The concept was strange
and useless as there was no operation that could be done on such
QVariant. Therefore it was dropped.
Please note that the patch slightly changes behavior of different
functions accepting a type id as parameter. Before QVariant::UserType
was an invalid type from QMetaType perspective (id 127 was not assigned
to any built-in type), but QMetaType::User points to the first registered
custom type.
Change-Id: I5c7d541a9affdcdacf53a4eda2272bdafaa87b71
Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
Reviewed-by: Andrew Stanley-Jones <andrew.stanley-jones@nokia.com>
Reviewed-by: Aaron Kennedy <aaron.kennedy@nokia.com>
As in the past, to avoid rewriting various autotests that contain
line-number information, an extra blank line has been inserted at the
end of the license text to ensure that this commit does not change the
total number of lines in the license header.
Change-Id: I311e001373776812699d6efc045b5f742890c689
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
Some objects expect connectNotify to be called in order the signal to be
emitted.
Change-Id: Id0460d9c2aef8f9c3618a2b62b2119a790e06f30
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
QMetaType::QVariant has existed as a proper type for almost two
years, but the qvariant_nameToType function was written in 2006.
Using QMetaType::QVariant means QVariant can be treated just like
any other type. We can get rid of those hacky checks for LastType,
and the remaining checks become more readable.
The fact that QMetaProperty::{type,userType}() returned LastType
(0xffffffff) for QVariants was never documented (LastType itself is
internal). But there are other Qt modules that assume so. I'll fix
the ones I know about (qtdeclarative, qtscript, activeqt).
Change-Id: I799b9079bb8bbb1fe76c132525440b30415cbac5
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
The C++ standard says that the comparison between pointer to virtual
function is unspecified (C++11 $5.10.2)
But we still may rely on it for the Qt::UniqueConnection and the
disconnection
So test if it works while using the same function.
Using function from different classes works for me, but we should
probably not assume it works. I left it commented in the test for
reference.
Change-Id: I1d9b91d4cc1a424d4f43ef2ee4981b8573f1e86f
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Use the C++ boolean constants true and false instead of the C macros
TRUE and FALSE (which are actually integers), and use QVERIFY instead of
QCOMPARE for verifying simple boolean expressions.
Change-Id: Ie76dfcab6722df6b93b3fa62b0f3437901482932
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
Remove the (-no)-qt3support options from configure, and remove the last
remaining references to Qt3Support, QT3_SUPPORT, and
QEvent::ChildInserted.
The compatibilityChildInsertEvents() tests in tst_QObject and
tst_QWidget have been renamed to childEvents(), which is a more
appropriate name.
Change-Id: Id0b45e9b177efcc8dceee8c9ed8afafedeeace2f
Reviewed-by: Kai Koehne <kai.koehne@nokia.com>
Reviewed-by: Robin Burchell <robin+qt@viroteck.net>
Reviewed-by: David Faure <faure@kde.org>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
This is a regression introduced in Qt 4.8
When QApplication::processEvents is called from a destructor, it is
possible that pending events would still be called on the already
destroyed subclass.
Prevent that by using the same pattern as in QMetaObject::activate
Change-Id: Ida50db07ae089264402dafcde7a41a066479d08b
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@nokia.com>
For some strange reason "Object::method ..." was printed, without
the leading Q.
Change-Id: I10b99e8aa8730e4020d15b3e04a01004bade76c3
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
On Windows, the signalbug.exe could not be launched since it is
not next to tst_qobject.exe, which is in one of the
'release', 'debug' subfolders.
Introduce a subdirectory structure similar to that of
the QProcess test and use QFINDTESTDATA to locate it.
Change-Id: Ie8f2ede8cb76f22a908cb77517a74076be11fbb7
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
These comments were mostly empty or inaccurate. Appropriate naming of
tests and appropriate placement of tests within the directory tree
provide more reliable indicators of what is being tested.
Change-Id: Ib6bf373d9e79917e4ab1417ee5c1264a2c2d7027
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
This is sent when the object's name changes.
tst_moc must be updated since the method count of QObject has changed.
The test assumed that there were 4 invokable methods in QObject. The
new signal is the 5th, which breaks the test's assumptions. Fix this
as well.
tst_QObject must be updated since the
QObjectPrivate::isSignalConnected() method only supports the first 64
signals. With the addition of this new signal, sig61() in the test
becomes the 65th signal, and will always appear connected now.
Task-number: QTBUG-13999 (related)
Change-Id: Ie87893c71a231fafa7ccf2f16102238a7be8327a
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
In .pro files, removed wince/symbian-specific DEPLOYMENT cases and
replaced them with TESTDATA where appropriate.
In .cpp files, removed SRCDIR and relative paths to testdata and
replaced them with the QFINDTESTDATA macro where appropriate.
Modified test helper apps/libs to install themselves under the test
they relate to.
This change allows corelib tests to be correctly installed, along with
their testdata, via `make install'.
Change-Id: I5e202e2f3b577af7e39072d5c9fe13e0ca125304
Reviewed-by: Jason McDonald <jason.mcdonald@nokia.com>
For compilations without variadic template support
Change-Id: I78af4f6022ad7a0923e5c5788a34eb7d834f50f3
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
Remove references to the old bug tracker. The data from the old bug
tracker is no longer accessible, so these markers are meaningless.
Change-Id: Ib9d029d52b70fd0a512b9532d65f03763eabfe57
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
For queued connections, the args[0] is set to null as it make no sens to
forward the return value to the signal.
So we need to check in the operator, that the pointer is not null.
(container.data is args[0])
Change-Id: I80bde66f1ec19de0f4962c80e5b2797d2819075c
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
This commit also improves the related documentation a bit.
The test is copied from the test with the old syntax, but all the
connection statement are changed to use the new syntax
Change-Id: Ia5630ca4335b9f8ca6d724ae3c8750d6f0804d8e
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
Before, the constructor was called for complex objects, but
POD were left unitinialized. Now, they are zero-initialized.
Also add test for return values
Change-Id: Iff9bf6687589d7b7395a71fb6f650ab8aa2b6bd1
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
This add an overload to disconnect which is symetrical to the new
syntax of connect.
It is possible to diconnect connection like this:
QObject::connect( sender, &Sender::valueChanged,
receiver, &Receiver::updateValue );
QObject::disconnect( sender, &Sender::valueChanged,
receiver, &Receiver::updateValue );
This overload only work with pointer to member function, and not static
functions or functors.
The test is copied from tst_QObject::disconnect(), just
changed the syntax of the connection and disconnection
Change-Id: Ia8f819100cb12098e32877522b97b732b1e676a8
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
Those tests are the one from Thiago's C++0X implementation
The rvalue references ones are commented out because moc do not
understand them yet
But supporting them may come later.
Change-Id: I6b0720e7f2992be9f7e34770960fa58fa456a54b
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
QMetaCallEvent now can handle a pointer to QSlotObjectBase
Change-Id: I94da1e68ce9bb1fd96a9ae013a389552eb625faa
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
In addition to the old connection syntax, you can now connect using function pointers.
connect(sender, &Sender::valueChanged,
receiver, &Receiver::updateValue );
You can connect also to functor or C++11 lambdas
The connections are now type safe (no more problems with namespaces
or typedefs). Implicit type conversion is also supported.
The new syntax forces us to change the meaning of signal form
protected to public, in order to be able to access the signal's
address everywhere
The way it works is by introducing new overload of QObject::connect
that take function pointer as parametter. Those new overload are template
function, that are implemented inline. The actual implementation is
in QObject::connectImpl which take a QObject::QSlotObject* as parametter
for the slot. That slot object contains a virtual function which call
the slot which has to be implemented in the header as it depends on the
template parametter. So the internals of QObjectPrivate::Connection
will store this QObjectSlot* in order to be able to make the call.
You can read a full description here:
http://developer.qt.nokia.com/wiki/New_Signal_Slot_Syntax
History of commits before it was imported on gerrit:
https://qt.gitorious.org/~ogoffart/qt/ogoffarts-qtbase/commits/qobject_connect_ptr
Thread on the mailing list:
http://lists.qt.nokia.com/pipermail/qt5-feedback/2011-August/000796.htmlhttp://lists.qt.nokia.com/pipermail/qt5-feedback/2011-September/001248.html
(The discussions on the mailing list were about trying to find a
solution that do not need making signals public, but no user friendly
solution was found)
Note: support for QueuedConnection, and the symetric QObject::disconnect is
added in another commit.
Qt::UniqueConnection is not supported yet in the new overload.
Change-Id: I67d08436b0720e7f2992be9f7e34770960fa58fa
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
qttest_p4.prf was added as a convenience for Qt's own autotests in Qt4.
It enables various crufty undocumented magic, of dubious value.
Stop using it, and explicitly enable the things from it which we want.
Change-Id: I7c1ffe9c8c294dbdc988e1582e580b1ed3f4593e
Reviewed-by: Jason McDonald <jason.mcdonald@nokia.com>
