a7da8e0dab
The plan for QObject::connect() (perfect) forwarders, such as QWidget::addAction(), was to just use a variant of the Detection Idiom to see whether QObject::connect() with the arguments as given would compile and SFINAE out the forwarder otherwise. It turns out that the "functor" overload of QObject::connect(), in particular, is severly underconstrained and accepts e.g. QKeySequence as a function object, only erroring out via a static_assert() in the body of the function, and thus at instantiation time and not, as needed, at overload resolution time. At the same time, we don't really want QObject::connect() to SFINAE out on argument mismatches between signal and slot, because the resulting error messages would be ... unkind to users of the API. We would like to keep the static_assert()s for easier error reporting. Reconciling these two contradicting requirements has so far eluded this author, so for now, to unblock progress, we explicitly black- and, in one case, white-list possible arguments. Because QKeySequence, in particular, is implicitly constructible from int(!), and therefore any enum type(!), incl. Qt::ConnectionType, we need to do way too much coding in the addAction() constraints. Hopefully, we'll be able to fix the issue at the root cause, in QObject, before Qt 6.3 is out, but until then, this is an ok-ish stop-gap measure. Add thorough overload set checks (positive ones only, for now) to tst_qwidget and tst_qmenu. Change-Id: Ia05233df818bc82ecc924fc44c1b349af41cbbf1 Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io> |
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| .. | ||
| auto | ||
| baselineserver | ||
| benchmarks | ||
| global | ||
| libfuzzer | ||
| manual | ||
| shared | ||
| testserver | ||
| CMakeLists.txt | ||
| README | ||
This directory contains autotests and benchmarks based on Qt Test. In order
to run the autotests reliably, you need to configure a desktop to match the
test environment that these tests are written for.
Linux X11:
* The user must be logged in to an active desktop; you can't run the
autotests without a valid DISPLAY that allows X11 connections.
* The tests are run against a KDE3 or KDE4 desktop.
* Window manager uses "click to focus", and not "focus follows mouse". Many
tests move the mouse cursor around and expect this to not affect focus
and activation.
* Disable "click to activate", i.e., when a window is opened, the window
manager should automatically activate it (give it input focus) and not
wait for the user to click the window.