2017-03-28 06:56:24 +00:00
|
|
|
<?xml version="1.0" encoding="UTF-8" ?>
|
2020-07-21 10:10:32 +00:00
|
|
|
<testsuite name="tst_PairDiagnostics" timestamp="@TEST_START_TIME@" tests="4" failures="2" errors="0" time="@TEST_DURATION@">
|
2017-03-28 06:56:24 +00:00
|
|
|
<properties>
|
2020-07-21 23:38:42 +00:00
|
|
|
<property name="QTestVersion" value="@INSERT_QT_VERSION_HERE@"/>
|
|
|
|
|
<property name="QtVersion" value="@INSERT_QT_VERSION_HERE@"/>
|
|
|
|
|
<property name="QtBuild" value=""/>
|
2017-03-28 06:56:24 +00:00
|
|
|
</properties>
|
2020-07-21 10:10:32 +00:00
|
|
|
<testcase name="initTestCase" result="pass" time="@TEST_DURATION@"/>
|
|
|
|
|
<testcase name="testQPair" result="fail" time="@TEST_DURATION@">
|
2020-07-21 23:38:42 +00:00
|
|
|
<failure result="fail" message="Compared values are not the same
|
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>
2020-02-14 23:11:22 +00:00
|
|
|
Actual (pair1): "std::pair(1,1)"
|
2020-07-21 23:38:42 +00:00
|
|
|
Expected (pair2): "std::pair(1,2)""/>
|
2017-03-28 06:56:24 +00:00
|
|
|
</testcase>
|
2020-07-21 10:10:32 +00:00
|
|
|
<testcase name="testStdPair" result="fail" time="@TEST_DURATION@">
|
2020-07-21 23:38:42 +00:00
|
|
|
<failure result="fail" message="Compared values are not the same
|
2017-03-28 06:56:24 +00:00
|
|
|
Actual (pair1): "std::pair(1,1)"
|
2020-07-21 23:38:42 +00:00
|
|
|
Expected (pair2): "std::pair(1,2)""/>
|
2017-03-28 06:56:24 +00:00
|
|
|
</testcase>
|
2020-07-21 10:10:32 +00:00
|
|
|
<testcase name="cleanupTestCase" result="pass" time="@TEST_DURATION@"/>
|
2017-03-28 06:56:24 +00:00
|
|
|
<system-err/>
|
|
|
|
|
</testsuite>
|
