diff options
author | Thiago Macieira <thiago.macieira@intel.com> | 2017-01-10 15:30:42 -0800 |
---|---|---|
committer | Thiago Macieira <thiago.macieira@intel.com> | 2017-01-14 03:24:30 +0000 |
commit | 5a1b4832a2704e7fb386d6b4c73dab85facdc40b (patch) | |
tree | 9b5413ec35eeb7baf92d1d9211b67e83b0ad6cdd /tests | |
parent | 635d0ae00717b9ba53a8e007e50fac0d2721ca35 (diff) |
Adapt to the C++ SIC introduced by P0021: noexcept overloading
C++17 adopts P0021R1[1], which makes noexcept be part of the function
pointer's type and thus be overloadable. It contains some provisions for
allowing a noexcept function pointer to cast implicitly to a non-
noexcept function pointer, but that fails in the presence of templates
and additional overloads that could match the type in question.
Fortunately, the paper proposed a test macro, so we can change our
sources now and be compatible with both C++14 and C++17 rules.
This first failed with Clang 4.0 trunk. This source incompatibility is
not our fault, it's the language's doing.
[1] http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0012r1.html
Task-number: QTBUG-58054
Change-Id: I2bc52f3c7a574209b213fffd14988cf0b875be63
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Diffstat (limited to 'tests')
-rw-r--r-- | tests/auto/corelib/kernel/qobject/test/test.pro | 3 | ||||
-rw-r--r-- | tests/auto/corelib/kernel/qobject/tst_qobject.cpp | 35 | ||||
-rw-r--r-- | tests/auto/corelib/kernel/qtimer/qtimer.pro | 3 | ||||
-rw-r--r-- | tests/auto/corelib/kernel/qtimer/tst_qtimer.cpp | 8 |
4 files changed, 49 insertions, 0 deletions
diff --git a/tests/auto/corelib/kernel/qobject/test/test.pro b/tests/auto/corelib/kernel/qobject/test/test.pro index f3bc045455..4e77cb48c5 100644 --- a/tests/auto/corelib/kernel/qobject/test/test.pro +++ b/tests/auto/corelib/kernel/qobject/test/test.pro @@ -3,5 +3,8 @@ TARGET = ../tst_qobject QT = core-private network testlib SOURCES = ../tst_qobject.cpp +# Force C++17 if available (needed due to P0012R1) +contains(QT_CONFIG, c++1z): CONFIG += c++1z + !winrt: TEST_HELPER_INSTALLS = ../signalbug/signalbug DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0 diff --git a/tests/auto/corelib/kernel/qobject/tst_qobject.cpp b/tests/auto/corelib/kernel/qobject/tst_qobject.cpp index 91810cdcd8..7b75438b19 100644 --- a/tests/auto/corelib/kernel/qobject/tst_qobject.cpp +++ b/tests/auto/corelib/kernel/qobject/tst_qobject.cpp @@ -120,6 +120,7 @@ private slots: void connectCxx0x(); void connectToStaticCxx0x(); void connectCxx0xTypeMatching(); + void connectCxx17Noexcept(); void connectConvert(); void connectWithReference(); void connectManyArguments(); @@ -4757,10 +4758,13 @@ class LotsOfSignalsAndSlots: public QObject public slots: void slot_v() {} + void slot_v_noexcept() Q_DECL_NOTHROW {} void slot_vi(int) {} + void slot_vi_noexcept() Q_DECL_NOTHROW {} void slot_vii(int, int) {} void slot_viii(int, int, int) {} int slot_i() { return 0; } + int slot_i_noexcept() Q_DECL_NOTHROW { return 0; } int slot_ii(int) { return 0; } int slot_iii(int, int) { return 0; } int slot_iiii(int, int, int) { return 0; } @@ -4774,13 +4778,18 @@ class LotsOfSignalsAndSlots: public QObject void slot_vPFvvE(fptr) {} void const_slot_v() const {}; + void const_slot_v_noexcept() const Q_DECL_NOTHROW {} void const_slot_vi(int) const {}; + void const_slot_vi_noexcept(int) const Q_DECL_NOTHROW {} static void static_slot_v() {} + static void static_slot_v_noexcept() Q_DECL_NOTHROW {} static void static_slot_vi(int) {} + static void static_slot_vi_noexcept(int) Q_DECL_NOTHROW {} static void static_slot_vii(int, int) {} static void static_slot_viii(int, int, int) {} static int static_slot_i() { return 0; } + static int static_slot_i_noexcept() Q_DECL_NOTHROW { return 0; } static int static_slot_ii(int) { return 0; } static int static_slot_iii(int, int) { return 0; } static int static_slot_iiii(int, int, int) { return 0; } @@ -4943,6 +4952,32 @@ void tst_QObject::connectCxx0xTypeMatching() } +void receiverFunction_noexcept() Q_DECL_NOTHROW {} +struct Functor_noexcept { void operator()() Q_DECL_NOTHROW {} }; +void tst_QObject::connectCxx17Noexcept() +{ + // this is about connecting signals to slots with the Q_DECL_NOTHROW qualifier + // as semantics changed due to http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0012r1.html + typedef LotsOfSignalsAndSlots Foo; + Foo obj; + + QObject::connect(&obj, &Foo::signal_v, &obj, &Foo::slot_v_noexcept); + QObject::connect(&obj, &Foo::signal_v, &obj, &Foo::slot_i_noexcept); + QObject::connect(&obj, &Foo::signal_v, &obj, &Foo::slot_vi_noexcept); + + QObject::connect(&obj, &Foo::signal_vii, &Foo::static_slot_v_noexcept); + QObject::connect(&obj, &Foo::signal_vii, &Foo::static_slot_i_noexcept); + QObject::connect(&obj, &Foo::signal_vii, &Foo::static_slot_vi_noexcept); + + QVERIFY(QObject::connect(&obj, &Foo::signal_vi, &obj, &Foo::const_slot_vi_noexcept)); + QVERIFY(QObject::connect(&obj, &Foo::signal_vi, &obj, &Foo::const_slot_v_noexcept)); + + QObject::connect(&obj, &Foo::signal_v, receiverFunction_noexcept); + + Functor_noexcept fn; + QObject::connect(&obj, &Foo::signal_v, fn); +} + class StringVariant : public QObject { Q_OBJECT signals: diff --git a/tests/auto/corelib/kernel/qtimer/qtimer.pro b/tests/auto/corelib/kernel/qtimer/qtimer.pro index 8afdbb148e..b27d862bc5 100644 --- a/tests/auto/corelib/kernel/qtimer/qtimer.pro +++ b/tests/auto/corelib/kernel/qtimer/qtimer.pro @@ -2,3 +2,6 @@ CONFIG += testcase TARGET = tst_qtimer QT = core testlib SOURCES = tst_qtimer.cpp + +# Force C++17 if available +contains(QT_CONFIG, c++1z): CONFIG += c++1z diff --git a/tests/auto/corelib/kernel/qtimer/tst_qtimer.cpp b/tests/auto/corelib/kernel/qtimer/tst_qtimer.cpp index fe97695d19..29ff552f6a 100644 --- a/tests/auto/corelib/kernel/qtimer/tst_qtimer.cpp +++ b/tests/auto/corelib/kernel/qtimer/tst_qtimer.cpp @@ -767,6 +767,11 @@ class StaticEventLoop public: static void quitEventLoop() { + quitEventLoop_noexcept(); + } + + static void quitEventLoop_noexcept() Q_DECL_NOTHROW + { QVERIFY(!_e.isNull()); _e->quit(); if (_t) @@ -787,6 +792,9 @@ void tst_QTimer::singleShotToFunctors() QTimer::singleShot(0, &StaticEventLoop::quitEventLoop); QCOMPARE(_e->exec(), 0); + QTimer::singleShot(0, &StaticEventLoop::quitEventLoop_noexcept); + QCOMPARE(_e->exec(), 0); + QThread t1; QObject c1; c1.moveToThread(&t1); |