Commit Graph

4268 Commits

Author SHA1 Message Date
Giuseppe D'Angelo
1e8d623340 QThread::create: remove the pre-C++17 codepaths
As we require C++17 now. The configure-time test checking for
future/async is left in for the moment being.

Change-Id: Ifde39d420673f70a2277f5a645bfaad30935a381
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
2020-07-07 20:54:12 +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
989fca660c Use QList instead of QVector in corelib tests
Task-number: QTBUG-84469
Change-Id: Ic80fde5517aed363f17d0da55cadcc958c3c8895
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2020-07-07 11:48:45 +02:00
Lars Knoll
9117e3850b Rename from() to sliced()
After API discussions, agreement was that from(n) is a bad name
for the method. Let's go with sliced(n) instead.

Change-Id: I0338cc150148a5008c3ee72bd8fda96fb93e9c35
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2020-07-06 21:31:35 +02:00
Lars Knoll
792cb3989a Add support for first(n), last(n) and sliced() to QList
This keeps the API symmetric with what we have in our string
classes.

Change-Id: I94c5b39b718ca2472f9ca645e7a42e4314636f67
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2020-07-06 21:31:25 +02:00
Lars Knoll
9a9a1a2a2e Port QString to qsizetype
Change-Id: Id9477ccfabadd578546bb265a9483f128efb6736
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2020-07-06 21:31:20 +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
Lars Knoll
215ca73534 Allow allocating more than 2G items in a vector
Also adjust qCalculateBlockSize() to be able to handle large
allocations.

QVector::length() is currently still limited to 2G items, that will
get changed in a later commit.

Change-Id: I3a92fbfd7f281d30844c5fafa3b9a474bc347c19
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2020-07-06 21:31:01 +02:00
Lars Knoll
fbce2e58e6 Get rid of QArrayData::sharedNull()
Remove the last places where those got used and avoid
allocations when we resize to 0.

Change-Id: Ib553f4e7ce7cc24c31da15a55a86d18bdf1cc5c3
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2020-07-06 21:30:33 +02:00
Lars Knoll
f8a53388a7 Get rid of unused flags in QArrayData
Change-Id: I3ea754b44fb33e33baba0781d9ae15b7f3b3d8eb
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2020-07-06 21:30:19 +02:00
Lars Knoll
a46caf087c Simplify Q_ARRAY_LITERAL
And clean up some unused pieces of code.

Change-Id: I285b6862dc67b7130af66d3e08f652b1a56b990e
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2020-07-06 21:30:06 +02:00
Lars Knoll
76004502ba Get rid of shared null for QByteArray, QString and QVector
As a side effect, data() can now return a nullptr. This
has the potential to cause crashes in existig code. To work
around this, return an empty string from QString::data()
and QByteArray::data() for now.

For Qt 6 (and once all our internal issues are fixed), data()
will by default return a nullptr for a null QString, but we'll
offer a #define to enable backwards compatible behavior.

Change-Id: I4f66d97ff1dce3eb99a239f1eab9106fa9b1741a
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2020-07-06 21:29:58 +02:00
Lars Schmertmann
11b3092cc4 Refactor tst_Collections
This improves the readability and avoids code duplication
in tst_Collections::forwardDeclared. Also some warnings
are fixed:
* qSort is deprecated.
* The = operator for LargeStatic needs to be implemented
  explicitly when a copy constructor is given.
* QMap::insertMulti is deprecated, a MultiMap is required.

Task-number: QTBUG-82978
Change-Id: I577f851394edfaa30154bd3417ce391635cc546d
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2020-07-06 09:42:36 +00:00
Lars Schmertmann
ae890390e5 Avoid use of Q_UNUSED by eliminating the parameter names
This change only happens to files touched
by the commit to add missing ; to Q_UNUSED.

Task-number: QTBUG-82978
Change-Id: I10e6993a2bb3952cf9a262708b8573550e0dbe63
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2020-07-03 21:10:09 +02:00
Lars Schmertmann
d4c04acc65 Remove deprecated empty macro
Change-Id: Ib2a646ee22a7f97dae584e6f068f17378fe2b494
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2020-07-02 20:51:52 +02:00
Edward Welbourne
057329c24c Make feature datetimeparser depend on feature datestring
No client of QDateTimeParser actually uses it unless datestring was
enabled, nor is it any use without datestring. Various methods
conditioned on datestring are broken unless datetimeparser is enabled.
We can't condition public API on datetimeparser, as it's a private
feature, but client code can condition use of it on the private
feature. All string-to-date/time conversions that use a string format
(this includes all locale-specific formats) depend on feature
datetimeparser.

Change #if-ery (or add it) in all client (including test) code to test
the right feature.

Tidied up some code in the process. Killed some already-redundant
textdate #if-ery. Renamed a test whose name claimed it involved
locale, which it doesn't, in the course of #if-ing it.

This simplifies the condition for feature datetimeedit (which overtly
depended on textdate, redundantly since it depends on datestring which
depends on textdate; its dependence on datetimeparser now makes its
dependency on datestring also redundant).

It also removes the need for assorted datestring checks in
QDateTimeParser itself.

Change-Id: I5dfe3a977042134b2cfb16cbcc795070634e7adf
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
2020-07-02 15:35:18 +02:00
Edward Welbourne
c30e0c656f Update tests/auto/corelib/time/'s CMake config
Recent changes in .pro files hadn't been propagated.
Re-ran pro2cmake.py and saved the results.

Change-Id: I91e4cd513329bce10ce8cbd0ddae8240af050213
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-07-02 15:35:17 +02:00
Edward Welbourne
ca8b2a3632 Remove assortee pre-Qt6 code from date/time tests
Assume QT_VERSION >= QT_VERSION_CHECK(6,0,0) throughout.

Change-Id: If70c59f9319f72549de581fc446fd60d32b02521
Reviewed-by: Andrei Golubev <andrei.golubev@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
2020-07-02 11:33:01 +02:00
Edward Welbourne
da7f4a4c76 Replace a constant with a predicate function using it
Rather than naming a "GMT" string so as to repeatedly test whether a
date-time's string representation ends in it, use a simple lambda to
do the test, so that the string is only used in one place anyway.
Makes the test code more readable.

Change-Id: I5afad9ad5d58702bea7f24e5e5688ea4d738ae0d
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
2020-07-01 16:00:34 +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
Jarek Kobus
c70c4e4266 Use QList instead of QVector in corelib docs
Task-number: QTBUG-84469
Task-number: QTBUG-85221
Change-Id: Ieb0ba7d82409e3c053a5788a01e92ea495505643
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
2020-06-29 18:00:13 +02:00
David Faure
eb54646984 Fix QUrl::toDisplayString(PreferLocalFile) returning an encoded path
It's supposed to return the same as toLocalFile(), for local files,
which means passing QUrl::FullyDecoded just like QUrl::toLocalFile()
does.

But a few code paths were testing component formatting options without masking
other FormattingOptions like RemovePassword, so this had to be fixed.

Fixes: QTBUG-84594
Change-Id: I82f15148b6d93516200f9ad6258d474e7f10924a
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2020-06-29 16:45:31 +02:00
Alexandru Croitor
554d40da58 CMake: Skip building tst_qprocess test when cross compiling
tst_qprocess hangs on the qemu armv7 configuration.

Task-number: QTBUG-85287
Change-Id: I5a77a81a24bb1bd315edfcf14f3bcbfd5b925e4d
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
2020-06-26 14:54:32 +02:00
Lars Knoll
e81330d327 Add explicit encode()/decode() methods to QStringConverter
The functional style interface is nice, but does feel alien in some
contexts, so better also have explicit encode and decode methods.

Change-Id: Ic07ced15f65cdb3a7f1cf044041e341d2ef87f79
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Alex Blasche <alexander.blasche@qt.io>
2020-06-26 14:41:42 +02:00
Jarek Kobus
0475460102 Use QList instead of QVector in corelib
Applied to headers only. Source file to be changed separately.
Omitted statemachine for now to avoid conflicts.
Omitted qmetatype.h for now - to be handled later.

Task-number: QTBUG-84469
Change-Id: I317376037a62467c313467d92955ad0b7473aa97
Reviewed-by: Sona Kurazyan <sona.kurazyan@qt.io>
2020-06-25 22:30:59 +02:00
Simon Hausmann
b20c7df63a Remove QPropertyMemberChangeHandler again
Adding support for a static notifier within QProperty itself - through a
QProperty "sister" class - is more efficient in terms of memory
consumption and run-time performance.

The MemberChangeHandler permanently takes up at least three pointers,
while the notified properties only cost one pointer in the binding.

Change-Id: Ia1a8c2b66f1f3c2fe13ae0ad9f12cdb6bdcc35ef
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
2020-06-25 14:11:56 +02:00
Fabian Kosmale
e18a060c03 QNotifiedProperty: Add guard callback
A guard callback is a predicate which takes the new value set by
setValue or computed as the result of a binding expression. If it
returns false, the value is discarded and the old value is kept.
Note that due to lazyness, when setting a binding, we still notify
everyone as the binding is only evaluated on demand, and the guard can
thus only run when someone actually queries the value.
Note further that a guard is allowed to modify the value that is passed
to it (e.g. to clamp it to a certain range).

Task-number: QTBUG-85032
Change-Id: I3551e4357fe5780fb75da80bf8be208ec152dc2a
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
2020-06-25 14:11:56 +02:00
Fabian Kosmale
6a24ac7c4e QNotifiedProperty: pass old value to callback if requested
Check at compile time whether the static callback takes an argument
(which has to be of the same time as the type of the property). If so,
retrieve the old value and pass it to the callback.

Change-Id: Ib1c4c9e05b826b6be492b03f66fa72ad015963ee
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
2020-06-25 14:11:56 +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
Lars Knoll
95e84c0ea9 Allow qMin, qMax and qBound for types that can be losslessly converted
Add overloads for qMin and friends where the arguments are of different
type, but one can be easily promoted to the other. Return the promoted
type. Promotions are only allowed if both types are either signed,
unsigned or floating point numbers.

This should simplify writing code in many case (as for example
qMin(myint64, 1)) and also help reduce source incompatibilities between
Qt 5 and Qt 6, where the return types for sizes of our containers changes
from int to qsizetype.

Change-Id: Ia6bcf16bef0469ea568063e7c32f532da610d1cd
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2020-06-25 06:20:18 +02:00
Thiago Macieira
cb1c66bd20 Fix conversion of QVariant() in QJsonArrays and Objects (through CBOR)
When I wrote the QCborValue to QJsonValue conversion, I used
QJsonValue::Undefined because it allowed to keep some level of
compatibility in CBOR, despite the function documentation saying that
CBOR undefineds became JSON nulls. Which they did.

But when we converted QJson{Array,Object} to be backed by CBOR classes,
that Undefined meant the insertion into the array/object actually
deleted the entry.

[ChangeLog][JSON] Fixed a regression from 5.14 that caused values of
default-constructed QVariants in QVariantLists, QVariantMaps and
QVariantHashes to disappear when converting to JSON via
fromVariant{,List,Map,Hash}.

Fixes: QTBUG-84610
Pick-to: 5.15
Change-Id: Ic0987177fe463f352db9bd84993f116e2bdacc75
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2020-06-24 22:43:57 +02:00
Marc Mutz
82743fb8a2 QPair: add a check that SB works as expected
We have no doubt it does, because it's compiler-synthesized, but
we might want to implement the tuple protocol for QPair in the
future and then this will act as a safety net, emulating what
users are currently already doing with QPair.

Change-Id: Ie37f0214bb1aa64210d25be8a256606f4572febe
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2020-06-24 17:49:35 +02:00
Edward Welbourne
f6d1be7c66 Use ranged for loops in place of foreach in QTimeZone tests
This (and use of Q_SLOTS for the test slots) makes it possible to
enable QT_NO_KEYWORDS and QT_NO_FOREACH in all the corelib/time/
tests.

Change-Id: I85fd358f3d1a72c9269d5260d0224640c1751f2d
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
2020-06-23 16:59:45 +02:00
Marc Mutz
44da43e8e4 QString: add char8_t overload of fromUtf8()
Use the overload-with-template trick from P1423 to avoid ambiguities
when existing callers pass 0 or nullptr.

Add a qdoc-ignored macro to hide the fact that the overload is a
template.

[ChangeLog][QtCore][QString] Added char8_t overload of fromUtf8().

Change-Id: Iaa2d365bfa161ef36cc73fa3bad50aabf34d01db
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2020-06-23 06:31:28 +00:00
Thiago Macieira
727fab7d29 QCborMap: remove the optimization not to detach from non-const find()
All our tests were find() == end() or !=, which depends on the
evaluation order of the arguments to operator==(). If end() is called
first, then the detach happens before find() and all is well. But if
find() is called first, it may return end() before end() detaches.

[ChangeLog][QCborMap] Fixed a bug that could cause the iterator returned
from a failing key search with find() not to match end(). Now, every
call to find() will detach in shared QCborMaps; to avoid this, use
constFind() and constEnd().

Fixes: QTBUG-84583
Pick-to: 5.15 5.12
Change-Id: I552d244076a447ab92d7fffd161793496a8d03a8
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
2020-06-23 00:29:50 +00:00
Marc Mutz
ffb73175e6 QVarLengthArray: add missing move special member functions
A QVLA is copyable, so it should be movable, too.

Added a helper function a la P1144's uninitialized_relocate_n to deal
with the QTypeInfoQuery stuff. This way, the code is re-usable
everywhere it's needed. The same cannot be said for QArrayDataOps,
which only a parent can love...

[ChangeLog][QtCore][QVarLengthArray] Added missing move constructor
and move-assignment operator.

Task-number: QTBUG-39111
Change-Id: If0dc2aa78eb29062d73dcd3dc4647ba345ae39e6
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2020-06-22 17:24:07 +00:00
Lars Knoll
03326a2fec Move implementation of QVector/List back to qlist.h
And name the main class QList. That's also the one we document.

This gives less porting pain for our users, and a lot less churn
in our API, as we use QList in Qt 5 in 95% of our API.
In addition, it gives more consistent naming with QStringList and
QByteArrayList and disambiguates QList vs QVector(2|3|4)D.

Fixes: QTBUG-84468
Change-Id: I3cba9d1d3179969d8bf9320b31be2230d021d1a9
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
2020-06-20 20:01:33 +02:00
Karsten Heimrich
18ec53156e Move QTextCodec support out of QtCore
* Assume UTF-8 on all Unix like systems
* Export some functions to be able to compile QTextCodec once
  moved to Qt5Compat.

Task-number: QTBUG-75665
Change-Id: I52ec47a848bc0ba72e9c7689668b1bcc5d736c29
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2020-06-20 02:04:38 +02:00
Giuseppe D'Angelo
3e1d03b1ea Port Q_STATIC_ASSERT(_X) to static_assert
There is no reason for keep using our macro now that we have C++17.
The macro itself is left in for the moment being, as well as its
detection logic, because it's needed for C code (not everything
supports C11 yet).  A few more cleanups will arrive in the next few
patches.

Note that this is a mere search/replace; some places were using
double braces to work around the presence of commas in a macro, no
attempt has been done to fix those.

tst_qglobal had just some minor changes to keep testing the macro.

Change-Id: I1c1c397d9f3e63db3338842bf350c9069ea57639
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2020-06-19 19:38:23 +02:00
Andrei Golubev
68de38ded1 Document QPromise API
Documented QPromise. Added snippets under auto tests
to ensure they are compiled and run in CI.

Task-number: QTBUG-81586
Change-Id: I20084e38f9d2f6fc8540f95ee03ec3d2827177e8
Reviewed-by: Sona Kurazyan <sona.kurazyan@qt.io>
2020-06-18 18:28:41 +03:00
Lars Knoll
7b5d5faae1 Remove unused functionality from QTypeInfo
Change-Id: I10fe4cde7a18047599e656cc3bb67b0dfe18a986
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
2020-06-18 12:02:51 +02:00
Shawn Rutledge
6589f2ed0c Introduce QInputDevice hierarchy; replace QTouchDevice
We have seen during the Qt 5 series that QMouseEvent::source() does
not provide enough information: if it is synthesized, it could have
come from any device for which mouse events are synthesized, not only
from a touchscreen. By providing in every QInputEvent as complete
information about the actual source device as possible, we will enable
very fine-tuned behavior in the object that handles each event.

Further, we would like to support multiple keyboards, pointing devices,
and named groups of devices that are known as "seats" in Wayland.

In Qt 5, QPA plugins registered each touchscreen as it was discovered.
Now we extend this pattern to all input devices.  This new requirement
can be implemented gradually; for now, if a QTWSI input event is
received wtihout a device pointer, a default "core" device will be
created on-the-fly, and a warning emitted.

In Qt 5, QTouchEvent::TouchPoint::id() was forced to be unique even when
multiple devices were in use simultaneously. Now that each event
identifies the device it came from, this hack is no longer needed.

A stub of the new QPointerEvent is added; it will be developed further
in subsequent patches.

[ChangeLog][QtGui][QInputEvent] Every QInputEvent now carries a pointer
to an instance of QInputDevice, or the subclass QPointingDevice in case
of mouse, touch and tablet events. Each platform plugin is expected to
create the device instances, register them, and provide valid pointers
with all input events. If this is not done, warnings are emitted and
default devices are created as necessary. When the device has accurate
information, it provides the opportunity to fine-tune behavior depending
on device type and capabilities: for example if a QMouseEvent is
synthesized from a touchscreen, the recipient can see which touchscreen
it came from. Each device also has a seatName to distinguish users on
multi-user windowing systems. Touchpoint IDs are no longer unique on
their own, but the combination of ID and device is.

Fixes: QTBUG-46412
Fixes: QTBUG-72167
Task-number: QTBUG-69433
Task-number: QTBUG-52430
Change-Id: I933fb2b86182efa722037b7a33e404c5daf5292a
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
2020-06-16 22:06:56 +02:00
Lars Knoll
5caf7ef3b1 Remove deprecated methods
Those aren't part of Qt 6 anymore.

Change-Id: I9ea7de07d89156e8d0fb6ae9deeb24e0de5fa429
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2020-06-12 15:50:08 +02:00
Marc Mutz
3f6142f5a1 Rename new slice() method sliced()
The recently-added slice() method has the problem that it's a noun
as well as a verb in the imperative. Like std::vector::empty, which
is both an adjective and a verb in the imperative, this may cause
confusion as to what the function does. Using the passive voice form
of slice(), sliced(), removes the confusion. While it can be read as
an adjective, too, that doesn't change the meaning compared to the
verb form.

Change-Id: If0aa01acb6cf5dd5eafa8226e3ea7f7a0c9da4f1
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2020-06-11 19:14:03 +00:00
Lars Knoll
d0689ec867 Get rid of the obsolete isEditable flag for properties
Change-Id: I54411bd8e223671523c9c8fad5c80bfa6b5b7097
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
2020-06-11 19:39:56 +02:00
Lars Knoll
5603be705e Qt6: remove support for property flags being functions
Property flags should be compile time booleans, not something to
be determined at runtime.

We've been using this to dynamically disable some properties in QWidget
based classes dependent on the state of a different property, but this
should better get implemented on top of our widgets.

Change-Id: I6296e8761303ecdf24d9e842142e8596304c015d
Reviewed-by: Simon Hausmann <hausmann@gmail.com>
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2020-06-11 19:39:53 +02:00
Lars Knoll
8ea11e0cf7 Remove most overloads taking a QStringRef from the QString API
Add QStringView overloads where they were missing. This keeps things
almost 100% source compatible.

Task-number: QTBUG-84319
Change-Id: Ica8ee773b2ce655e9597097786117959e34b236e
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
2020-06-11 15:52:25 +02:00
Marc Mutz
c549ff3fd4 Also check QStringView(std::nullptr_t) for constexpr'ness
Pick-to: 5.15
Change-Id: I85967caa014fa93d2cd3f26b63e4a85414f6a803
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
2020-06-11 08:24:13 +02:00
Lars Knoll
ecacb3c62f Port QLocale::quoteString from QStringRef to QStringView
Task-number: QTBUG-84319
Change-Id: I29726ebfda7a5f51a0a6ee29e905b0b904256c8d
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2020-06-11 02:50:16 +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