Commit Graph

1313 Commits

Author SHA1 Message Date
Timur Pocheptsov
cd6d53610a tst_QTcpSocket::connectToHostError - increase the timeout
As suggested by the message from QTestLib. This, indeed, fixed the
sadistic test. Also, make sure resources are not leaked.

Pick-to: 5.15
Fixes: QTBUG-87009
Change-Id: Id693a5a562ea5ebacc853e5fc0ab9654ba851e72
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
2020-10-08 22:09:44 +02:00
Allan Sandfeld Jensen
564b59d903 Another round of replacing 0 with nullptr
This time based on grepping to also include documentation, tests and
examples previously missed by the automatic tool.

Change-Id: Ied1703f4bcc470fbc275f759ed5b7c588a5c4e9f
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2020-10-07 23:02:47 +02:00
Lars Schmertmann
8d057fea98 Add test case for QSslSocket to show the wrong behavior
Task-number: QTBUG-81661
Change-Id: I4ed2ad3a22bd5439751328d915e9984eb89397d1
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
2020-10-02 13:22:38 +02:00
Tony Sarajärvi
8c5eb647cf Further blacklist network tests on Windows MinGW
Task-number: QTBUG-87009
Change-Id: Ic855ae87b69c02f76519a2957de05f4af7bf9a6d
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
2020-09-29 19:56:45 +00:00
Tony Sarajärvi
036eb54e60 Blacklist QTcpSocket::connectToHostErrors in Windows 10 builds
Task-number: QTBUG-87009
Change-Id: I63c1bcb77a359cea82f2831b02f1e29b46060a66
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
2020-09-29 07:13:46 +00:00
Heikki Halmet
cf0f1e0860 Blacklist tst_QUdpSocket::writeDatagramToNonExistingPeer
tst_QUdpSocket::writeDatagramToNonExistingPeer is also failing with
MinGW

Task-number: QTBUG-74542
Task-number: QTBUG-80328
Change-Id: I44b886a1fc1eac34deefc34690c6701063a49d8f
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
2020-09-29 09:41:23 +03:00
Alexandru Croitor
403213240c CMake: Regenerate projects to use new qt_internal_ API
Modify special case locations to use the new API as well.
Clean up some stale .prev files that are not needed anymore.
Clean up some project files that are not used anymore.

Task-number: QTBUG-86815
Change-Id: I9947da921f98686023c6bb053dfcc101851276b5
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
2020-09-23 16:59:06 +02:00
Mårten Nordheim
a07f35409b QDecompressHelper: limit decompression ratio
To avoid potential decompression bombs. This is implemented with just
a simple check that the ratio doesn't pass some hardcoded preset.

Change-Id: I17246f0f43e73280cdb35a8f03d65885f5678ad6
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2020-09-22 19:08:53 +02:00
Alexandru Croitor
a3bd80c08c CMake: Regenerate projects
Clean up the state of the projects,
before changing the internal CMake API function names.

Task-number: QTBUG-86815
Change-Id: I90f1b21b8ae4439a4a293872c3bb728dab44a50d
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-09-22 19:08:53 +02:00
Cristian Adam
0aa4b33b92 CMake Build: Add qtnetwork docker testserver support
qt_add_test supports now QT_TEST_SERVER_LIST, which will add the test
servers as docker test fixtures.

The docker server will be started before the test is run, and stopped
after the test is run.

Running the tests in parallel is not supported.
Docker tests are currently only supported on Linux hosts.

Task-number: QTBUG-85034
Change-Id: If3cefe05c5dec19c14b05d2fa8b01a0b6d95e259
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-09-17 00:11:04 +00:00
Mårten Nordheim
2253d5eca6 Schannel: Properly handle request for certificate
Certain servers, like smtp.live.com, will send a request for a
certificate even though they don't require one. In Schannel this
manifests as a warning/info status (SEC_I_INCOMPLETE_CREDENTIALS).
In the cases where it's not needed we should suppress the warning and
try to connect anyway, which is done by calling
InitializeSecurityContext again when we get the status.

Pick-to: 5.15
Change-Id: I3c48140f2949d8557251a49a2b66946da9395736
Reviewed-by: Joshua GPBeta <studiocghibli@gmail.com>
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
2020-09-14 17:14:00 +02:00
Lars Knoll
2c698a6d07 Fix compiler warnings about missing overrides
Change-Id: I52bf9fe45607f4a99cafa441bd78dfe5f7adb0e1
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2020-09-13 21:03:31 +02:00
Timur Pocheptsov
605d2163f1 QSsl: workaround a 'very secure' OpenSSL version (CentOS 8.x et al)
CentOS it seems not only backported some OpenSSL 3 functions,
but also raised the default security level to 2, making some of
our keys (and MDs?) 'too weak' and failing auto-tests here and
there as a result. For our auto-test we lower the level to 1,
as it is expected to be.

Fixes: QTBUG-86336
Pick-to: 5.15
Change-Id: I7062a1b292e8b60eb9c2b2e82bd002f09f9da603
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
2020-09-12 05:36:08 +02:00
Mårten Nordheim
e0918af700 QAuthenticator: condition using GSSAPI on credentials availability
AFAICT with GSSAPI the normal workflow is to run kinit or similar and
authenticate before running programs relying on it. Therefore
we can try to get the credentials before we choose whether or not
to use Negotiate.

Pick-to: 5.15
Task-number: QTBUG-85123
Change-Id: If0478fdd45389b2939ad87c2f582776fe56959bb
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
2020-09-11 13:37:48 +02:00
Mårten Nordheim
5a47939d5c tst_QNetworkReply: Avoid race in ioGetFromHttpWithAuth
Our authentication code is race-y by design:
1. When two requests are fired off and queued at the same time in the
same QHttpNetworkConnection then if one of them encounters
"authentication required" then it will copy whatever credentials it got
to all the other channels in the connection. This is likely what the
first part of the test is testing.
2. If a later request is fired off and it includes credentials in the
url then the newly included credentials should be used instead of the
cached ones.

The race here can occurr when one socket either takes too long to
connect or the connected signal is not received early enough. Then the
first socket is used for both requests and then we can hit case #2 when
the url contains credentials.

Pick-to: 5.15
Change-Id: I646a5378d8c1256b2de98b51912953df29f68cb2
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
2020-09-11 11:30:57 +02:00
Lars Knoll
6ae7a02104 Remove most compiler warnings about missing overrides
Remove around 1000 compiler warnings about missing overrides
in our auto tests.

This significantly reduce the compiler warning noise in our auto
tests, so that one can actually better see the real problems
inbetween.

Change-Id: Id0c04dba43fcaf55d8cd2b5c6697358857c31bf9
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
2020-09-11 00:20:47 +02:00
Timur Pocheptsov
4f658d04da Fix a rather sloppy test case in tst_QSslKey
It's not guaranteed that all curves we want to use are supported
by a specific build of OpenSSL library we have to link with. Filter
out files that contain EC, which is not among the curves, reported
by QSslConfiguration::supportedEllipticCurves.

Fixes: QTBUG-46203
Pick-to: 5.15
Change-Id: I70d7e6fcacb3d81f8c771e4a8d6cca06295e7474
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
2020-09-10 17:32:09 +02:00
Tor Arne Vestbø
f4c58b79a7 Extend test blacklisting from Ubuntu 18.04 to 20.04
Task-number: QTBUG-86187
Change-Id: I3ac3233f7355d1c16bc9bf6e052fdf4bd9ea90de
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
2020-09-03 14:30:04 +02:00
Mårten Nordheim
f7f79483e7 Remove QFtp sources etc. in favor of alternate distribution
While we initially wanted to just disable the functionality the way it
is currently built forces people to do a full build of Qt just to enable
it. Instead of doing this half-measure let's just remove the code
completely from QtBase and rather prepare QtNetwork to handle being a
plugin that can be compiled at any time.

Task-number: QTBUG-80340
Change-Id: I19155c8c167cf932088f01b2a9706d0e7ab792d1
Reviewed-by: Alex Blasche <alexander.blasche@qt.io>
2020-08-27 18:58:21 +02:00
Mårten Nordheim
0871a7b5a2 tst_QNetworkDiskCache: fix setCookieHeader
It wouldn't grab the cached entry since it was not deemed
"fresh" (and would never be fresh because we didn't know when it
originated from or when it expired). But the test still passed because
the reply produced a "finished" signal which ended the loop, but the
"finished" signal was due to an error which was unchecked.

Change-Id: I6ad271aa621bdb4a48b74bc8fd64c7e2caa8f179
Reviewed-by: Alex Blasche <alexander.blasche@qt.io>
2020-08-25 09:09:42 +02:00
Mårten Nordheim
467d215b32 Disable cipherstring-setting test for schannel
And put a note about it in the documentation

Change-Id: I29126e4a80f83c256190e03b8fe01f3c869fd46d
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
2020-08-24 17:43:39 +02:00
Mårten Nordheim
5283be1f73 tst_qnetworkreply: Extend httpConnectionCount to test HTTP/2 and TLS
HTTP/2 is only used initially before it transitions to using HTTP/1.1,
and in this case the amount of connections established should also
reach 6.

Change-Id: I300e171e46c846df1730c07469ea85a51cecfb63
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
2020-08-24 17:43:30 +02:00
Alex Trotsenko
b3310426b6 tst_QLocalSocket: fix wrong slot name
Suppress the warning:

QObject::connect: No such slot LocalSocket::slotError(QLocalSocket ...

Pick-to: 5.15
Change-Id: Ia08505ebc85d4070582c7ddaae8b581d394dbb80
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
2020-08-24 14:50:56 +03:00
Mårten Nordheim
d40f88e8d2 QDecompressHelper: Introduce zstd support
Also take this opportunity to reshuffle the content-encodings in the
intended ordering since the ordering is used to signify priority.

Task-number: QTBUG-83269
Change-Id: I022eecf1ba03b54dbd9c98a9d63d05fb05fd2124
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2020-08-14 13:17:11 +02:00
Frederik Gladhorn
d12afeff40 Set default redirect policy to NoLessSafeRedirectPolicy
Not following redirects is not a feature, but just a hastle for everyone.

The main issue with switching this default is that applications that
actually do manual redirect handling will break in various ways.

FollowRedirectsAttribute was removed as it no longer serves any
purpose beyond duplicating the default value.

[ChangeLog][Network] QNetworkAccessManager now follows redirects by
default with the NoLessSafeRedirectPolicy.
[ChangeLog][Potentially Source-Incompatible Changes]
QNetworkRequest::FollowRedirectsAttribute was removed and has been
superseded by QNetworkRequest::RedirectsPolicyAttribute

Fixes: QTBUG-85901
Change-Id: Ic5b776180a4b84ac4fc895158bb5a66a3c91a042
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
2020-08-13 19:58:19 +02:00
Ulf Hermann
3e25d09b08 QDecompressHelper: Change order of encodings
Before the introduction of QDecompressHelper gzip was preferred over
deflate. The change seems to be accidental. Amends commit
7b76379a89.

Change-Id: I70f33d551912465d63f49ea3db1ac3575d19a92d
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
2020-08-12 08:27:09 +00:00
Mårten Nordheim
ad1a5bf63f QDecompressHelper: Add brotli support
Task-number: QTBUG-83269
Change-Id: If23b098ee76a4892e4c2c6ce5c635688d8d9138d
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
2020-08-06 20:56:42 +02:00
Alexandru Croitor
92ee9bd6b8 CMake: Properly handle CONFIG += thread aka Threads::Threads
mkspecs/features/qt.prf adds a dependency on the system threading
library if the Qt Core thread feature is enabled. Because qt.prf is
loaded by any public or internal Qt project, it's essentially a public
dependency for any Qt consumer.

To mimic that in CMake, we check if the thread feature is enabled, and
and set the Threads::Threads library as a dependency of Qt6::Platform,
which is a public target used by all Qt modules and plugins and Qt
consumers.

We also need to create a Qt6Dependencies.cmake file so we
find_package(Threads) every time find_package(Qt6) is called.

For the .prl files to be usable, we have to filter out some
CMake implementation specific directory separator tokens
'CMAKE_DIRECTORY_ID_SEP' aka '::@', which are added because we call
target_link_libraries() with a target created in a different scope
(I think).

As a result of this change, we shouldn't have to hardcode
Threads::Threads in other projects, because it's now a global public
dependency.

Task-number: QTBUG-85801
Task-number: QTBUG-85877
Change-Id: Ib5d662c43b28e63f7da49d3bd77d0ad751220b31
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
2020-08-06 19:15:39 +02:00
Mårten Nordheim
7b76379a89 Make use of QDecompressHelper for HTTP downloads
Changes are not too big for now. Just replaces use of the previous
calls to the zlib decompression function. And initialize
QDecompressHelper when we know the content-encoding.

Task-number: QTBUG-83269
Change-Id: I41358feaef2e7ac5f48f14e3f95ec094e0c110b7
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
2020-08-05 17:19:10 +02:00
Mårten Nordheim
07b008425a Privately introducing QDecompressHelper for network purposes
To support streaming decompression in QNAM.
Will also be used to refactor existing decompression code in QNAM.

Task-number: QTBUG-83269
Change-Id: Iecf3e359734163f15686c949f75d41fa4794a00e
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2020-08-05 09:17:11 +02:00
Timur Pocheptsov
1482739002 QHostAddress: resolve API issues marked with ##Qt6
Also, remove the deprecated function and its auto-test.

Change-Id: If04a54c4b91e0f76523960c7b1a5bcb8fe883ac6
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2020-07-28 12:38:15 +02:00
Giuseppe D'Angelo
d145dbc43f SSL: add an autotest for handling of illegal datetimes in certificates
At the moment it just exposes QTBUG-84676, that is, OpenSSL
and non-OpenSSL backend act differently. Went a bit overkill
in making it data-driven, so if someone wants to add more
samples it should be easier to do so.

Change-Id: I96538c9563d12d69c217415ba85e244dda5e0cd0
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
2020-07-17 17:50:54 +02:00
Alexandru Croitor
db397d1113 CMake: Regenerate subdir test projects
And generate a few more test projects that were missing.

Change-Id: I5df51106549aa5ae09bc3c42360e14b143719547
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
2020-07-09 09:38:39 +02:00
Alexandru Croitor
e9a328bc0e CMake: Regenerate tests with new qt_ prefixed APIs
Use pro2cmake with '--api-version 2' to force regenerate
projects to use the new prefixed qt_foo APIs.

Change-Id: I055c4837860319e93aaa6b09d646dda4fc2a4069
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-07-09 09:38:35 +02:00
Alexandru Croitor
5417f1e40c CMake: Regenerate tests
This is in preparation for regenerating them with the new qt_foo
prefixed APIs.

Change-Id: Iff34932d642b1c0186ee39f952adf3ad367fd602
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-07-09 09:38:31 +02:00
Lars Schmertmann
6ce2f3f26b Add ; to Q_UNUSED
This is required to remove the ; from the macro with Qt 6.

Task-number: QTBUG-82978
Change-Id: I3f0b6717956ca8fa486bed9817b89dfa19f5e0e1
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2020-07-07 11:51:48 +02:00
Jarek Kobus
d33655a953 Use QList instead of QVector in other qtbase tests
Task-number: QTBUG-84469
Change-Id: Ie0455c890c048c52eacad1badd6d21df999badf9
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2020-07-07 11:48:45 +02:00
Lars Knoll
df853fed66 Use qsizetype in QList
The change creates a slight source incompatibility. The main
things to take care of are

* code using printf statements on list.size(). Using qsizetype in
printf statements will always require a cast to work on both 32
and 64 bit.
* A few places where overloads now get ambiguous. One example is
QRandomGenerator::bounded() that has overloads for int, uint and
double, but not int64.
* Streaming list.size() to a QDataStream will change the format
depending on the architecture.

[ChangeLog][QtCore][QList] QList now uses qsizetype to index into
elements.

Change-Id: Iaff562a4d072b97f458417b670f95971bd47cbc6
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2020-07-06 21:31:14 +02:00
Alexandru Croitor
5d6705c567 CMake: Skip / ignore failing tests on CMake platforms
Skip crashing tests and ignore failing tests on CMake platforms.

Add missing QTEST_ENVIRONMENT=ci env var assignment to Coin test
instructions. This was hardcoded by the Coin code for qmake
configurations.

Task-number: QTBUG-85364
Change-Id: Id2312e504a0d36b8f8596d4cebaa49c63731406e
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-07-01 14:55:29 +02:00
Timur Pocheptsov
37d9e44cd0 QSslConfiguration::setCiphers - introduce the overload taking QString
We had such an overloaded version in QSslSocket, it was deprecated without
providing any alternative. Now this function has some use and may be
introduced in Qt6, as QSslConfiguration::setCiphers(const QString &).
Last but not the least - a useless and strange auto-test was removed
(it was creating a list of 5 QSslCiphers each with isNull() == true).
That's becasue '!MD5' or 'ALL' (for example) is not a cipher to be found
in supportedCiphers.

Change-Id: I47eb4c0faa9b52885e883751dd992cd9cb3d26fe
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
2020-07-01 11:26:15 +02:00
Timur Pocheptsov
45c0f45e04 Move QAlertLevel and QAlertType enums into the namespace QSsl
Not to pollute the global namespace with rather generic names
(especially in case QT_NAMESPACE is none); also drop the
(now)redundant 'Q' prefix in the names.

Change-Id: I57ea7e3996cced705f7ddbdbc1e0231191b31c43
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
2020-06-29 17:08:13 +02:00
Sona Kurazyan
d7ccd8cb45 Remove QByteArray's methods taking QString and their uses
[ChangeLog][QtCore][QByteArray] Remove method overloads taking
QString as argument, all of which were equivalent to passing the
toUtf8() of the string instead.

Change-Id: I9251733a9b3711153b2faddbbc907672a7cba190
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2020-06-25 09:54:16 +02:00
Jarek Kobus
d13b6bd496 Use QList instead of QVector in network tests
Task-number: QTBUG-84469
Change-Id: Ic96dc8d29b5d720810ca636284f5fd37e4307acd
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2020-06-25 07:54:44 +02:00
Timur Pocheptsov
c2bf56fc3a QSslSocket: remove certificate-related setters
They were deprecated with replacements in QSslConfiguration proposed (and
some without alternative, which we'll provide if there is any demand
in such an API). Special thanks to M.N. for a nice hint on how to
amend the test without introducing a new API.

Change-Id: I7841a5b3f30469d8204b61cb65921c34275e0650
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
2020-06-22 12:11:47 +02:00
Mårten Nordheim
306ebe03ea Http: Fix POST-to-GET redirects still uploading or transmitting CL
CL = Content-Length

The uploadByteDevice was kept after a redirect which caused the
internals to assume that we had to upload the data. Even if this was
not the case we still transmitted the Content-Length header from the
first request which was now stored in two places.

Fixes: QTBUG-84162
Pick-to: 5.15
Change-Id: Ic86b1ef0766ffcc50beeed96c1c915b721d40209
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
2020-06-12 16:11:55 +02:00
Timur Pocheptsov
8a65cd8dcd long_name_onDemandCerts_static - stop testing/using the deprecated API
Pick-to: 5.15
Change-Id: Ia937fc393b2dbc2602a93f2b3a71328a805ec1a6
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
2020-06-12 14:09:23 +02:00
Timur Pocheptsov
b7724048f9 long_name_onDemandCerts_member - stop testing/using the deprecated API
Pick-to: 5.15
Change-Id: I3d7ea78627afcd0225e717d243da49fd70b58461
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
2020-06-12 14:09:04 +02:00
Timur Pocheptsov
56187f1e45 tst_qsslcertificate - suppress a deprecation warning
In Qt 5 we have to work with the esisting API (QSslCertificate::verify),
taking only the peer's chain and the name. We already have a private
API to have a CA's list as an additional parameter, the proper fix
in Qt6 will also introduce a public complement for this.

Pick-to: 5.15
Change-Id: Ib1f75c3056b135c6e6d42f977b5a7034fca658ee
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
2020-06-12 14:08:55 +02:00
Timur Pocheptsov
7d98964815 tst_QSslSocket - stop using qrand (to suppress a warning)
Whoever wrote this test, was a PROPER hacker: trying to force a TLS implementation
not to properly compress some data, they generated a sequence of bytes in a very fancy manner,
something like 255 0 0 0 255 0 0 0 123 0 0 0 255 0 0 0 - yeah, it's really a random sequence
of bytes, surely, it's impossible to compress! Meh.

Pick-to: 5.15
Change-Id: Ia10ae18a40b5b8f006c45147b06fe5be6efcb129
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
2020-06-10 22:55:49 +02:00
Giuseppe D'Angelo
8e98a161e9 Long live std::pair!
Make QPair an alias for std::pair, and qMakePair just a forwarder
towards std::make_pair.

Why? Fundamentally to ditch a bunch of NIH code; gain for free
structured bindings, std::tuple and std::reference_wrapper
compatibility, and so on.

Breakages:

* Some that code manually forward declares QPair.
We don't care about it (<QContainerFwd> is the proper way).

* Some code that overloads on std::pair and QPair. Luckily
it's mostly centralized: debug, metatypes, testing macros.
Just remove the QPair overload.

* Usages of qMakePair forcing the template type parameters.
There are a handful of these in qtbase, but only one was actually
broken.

* std::pair is NOT (and will never likely be) trivially copiable.
This is agreed to be a mistake done by practically all implementations
in C++11, can can't be fixed without breaking ABI.
Some code using QPair assuming it's trivially copiable may break;
exactly one occurrence was in qtbase.

* QMetaType logic extracts the type names in two different ways,
one by looking at the source code string (e.g. extracted by moc)
and one via some ad-hoc reflection in C++. We need to make
"QPair" (as spelled in the source code) be the same as "std::pair"
(gathered via reflection, which will see through the alias)
when compared. The way it's already done e.g. for QList is
by actually replacing the moc-extracted name with the name
of the actual type used in C++; do the same here.
On libc++, std::pair is actually in an inline namespace --
i.e. std::__1::pair; the reflection will extract and store
"std::__1::pair" so we need an ad-hoc fix to QMetaType.

[ChangeLog][QtCore][QPair] QPair is now an alias to std::pair,
and does not exist as a class in Qt any more. This may break
code such as functions overloaded for both QPair and std::pair.
Usually, the overload taking a QPair can be safely discarded,
leaving only the one taking a std::pair. QPair API has not changed,
and qMakePair is still available for compatibility (although
new code is encouraged to use std::pair and std::make_pair
directly instead).

Change-Id: I7725c751bf23946cde577b1406e86a336c0a3dcf
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2020-06-10 16:49:08 +02:00