Cleanup QTypeInfo

Remove QTypeInfo::isStatic, as that's not used anymore in Qt 6.
Also remove sizeOf, it's unused, and we have QMetaType for that if
required.
Remove all typeinfo declaractions for trivial types, as the default
template covers them correctly nowadays.

Finally set up a better default for isPointer, and do some smaller
cleanups all over the place.

Change-Id: I6758ed37dfc701feaaf0ff105cc95e32da9f9c33
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This commit is contained in:
Lars Knoll 2020-08-20 18:31:06 +02:00
parent db21bad936
commit acbf9a858b
16 changed files with 62 additions and 167 deletions

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@ -55,16 +55,7 @@ class QDebug;
*/
template <typename T>
static constexpr bool qIsRelocatable()
{
return std::is_trivially_copyable<T>::value && std::is_trivially_destructible<T>::value;
}
template <typename T>
static constexpr bool qIsTrivial()
{
return std::is_trivial<T>::value;
}
static constexpr bool qIsRelocatable = std::is_trivially_copyable_v<T> && std::is_trivially_destructible_v<T>;
/*
The catch-all template.
@ -75,12 +66,10 @@ class QTypeInfo
{
public:
enum {
isPointer = false,
isIntegral = std::is_integral<T>::value,
isComplex = !qIsTrivial<T>(),
isStatic = true,
isRelocatable = qIsRelocatable<T>(),
sizeOf = sizeof(T)
isPointer = std::is_pointer_v<T>,
isIntegral = std::is_integral_v<T>,
isComplex = !std::is_trivial_v<T>,
isRelocatable = qIsRelocatable<T>,
};
};
@ -92,52 +81,10 @@ public:
isPointer = false,
isIntegral = false,
isComplex = false,
isStatic = false,
isRelocatable = false,
sizeOf = 0
};
};
template <typename T>
class QTypeInfo<T*>
{
public:
enum {
isPointer = true,
isIntegral = false,
isComplex = false,
isStatic = false,
isRelocatable = true,
sizeOf = sizeof(T*)
};
};
/*!
\class QTypeInfoQuery
\inmodule QtCore
\internal
\brief QTypeInfoQuery is used to query the values of a given QTypeInfo<T>
We use it because there may be some QTypeInfo<T> specializations in user
code that don't provide certain flags that we added after Qt 5.0. They are:
\list
\li isRelocatable: defaults to !isStatic
\endlist
DO NOT specialize this class elsewhere.
*/
// apply defaults for a generic QTypeInfo<T> that didn't provide the new values
template <typename T, typename = void>
struct QTypeInfoQuery : public QTypeInfo<T>
{
enum { isRelocatable = !QTypeInfo<T>::isStatic };
};
// if QTypeInfo<T>::isRelocatable exists, use it
template <typename T>
struct QTypeInfoQuery<T, typename std::enable_if<QTypeInfo<T>::isRelocatable || true>::type> : public QTypeInfo<T>
{};
/*!
\class QTypeInfoMerger
\inmodule QtCore
@ -163,12 +110,10 @@ class QTypeInfoMerger
{
static_assert(sizeof...(Ts) > 0);
public:
static constexpr bool isComplex = ((QTypeInfoQuery<Ts>::isComplex) || ...);
static constexpr bool isStatic = ((QTypeInfoQuery<Ts>::isStatic) || ...);
static constexpr bool isRelocatable = ((QTypeInfoQuery<Ts>::isRelocatable) && ...);
static constexpr bool isComplex = ((QTypeInfo<Ts>::isComplex) || ...);
static constexpr bool isRelocatable = ((QTypeInfo<Ts>::isRelocatable) && ...);
static constexpr bool isPointer = false;
static constexpr bool isIntegral = false;
static constexpr std::size_t sizeOf = sizeof(T);
};
#define Q_DECLARE_MOVABLE_CONTAINER(CONTAINER) \
@ -182,8 +127,6 @@ public: \
isIntegral = false, \
isComplex = true, \
isRelocatable = true, \
isStatic = false, \
sizeOf = sizeof(CONTAINER<T>) \
}; \
}
@ -204,9 +147,7 @@ public: \
isPointer = false, \
isIntegral = false, \
isComplex = true, \
isStatic = false, \
isRelocatable = true, \
sizeOf = sizeof(CONTAINER<K, V>) \
}; \
}
@ -228,10 +169,9 @@ Q_DECLARE_MOVABLE_CONTAINER(QMultiHash);
enum { /* TYPEINFO flags */
Q_COMPLEX_TYPE = 0,
Q_PRIMITIVE_TYPE = 0x1,
Q_STATIC_TYPE = 0,
Q_MOVABLE_TYPE = 0x2, // ### Qt6: merge movable and relocatable once QList no longer depends on it
Q_RELOCATABLE_TYPE = 0x2,
Q_MOVABLE_TYPE = 0x2,
Q_DUMMY_TYPE = 0x4,
Q_RELOCATABLE_TYPE = 0x8
};
#define Q_DECLARE_TYPEINFO_BODY(TYPE, FLAGS) \
@ -239,14 +179,11 @@ class QTypeInfo<TYPE > \
{ \
public: \
enum { \
isComplex = (((FLAGS) & Q_PRIMITIVE_TYPE) == 0) && !qIsTrivial<TYPE>(), \
isStatic = (((FLAGS) & (Q_MOVABLE_TYPE | Q_PRIMITIVE_TYPE)) == 0), \
isRelocatable = !isStatic || ((FLAGS) & Q_RELOCATABLE_TYPE) || qIsRelocatable<TYPE>(), \
isComplex = (((FLAGS) & Q_PRIMITIVE_TYPE) == 0) && !std::is_trivial_v<TYPE>, \
isRelocatable = !isComplex || ((FLAGS) & Q_RELOCATABLE_TYPE) || qIsRelocatable<TYPE>, \
isPointer = false, \
isIntegral = std::is_integral< TYPE >::value, \
sizeOf = sizeof(TYPE) \
}; \
static inline const char *name() { return #TYPE; } \
}
#define Q_DECLARE_TYPEINFO(TYPE, FLAGS) \
@ -283,50 +220,6 @@ inline void swap(TYPE &value1, TYPE &value2) \
#define Q_DECLARE_SHARED_NOT_MOVABLE_UNTIL_QT6(TYPE) \
Q_DECLARE_SHARED_IMPL(TYPE, QT_VERSION >= QT_VERSION_CHECK(6,0,0) ? Q_MOVABLE_TYPE : Q_RELOCATABLE_TYPE)
/*
QTypeInfo primitive specializations
*/
Q_DECLARE_TYPEINFO(bool, Q_PRIMITIVE_TYPE);
Q_DECLARE_TYPEINFO(char, Q_PRIMITIVE_TYPE);
Q_DECLARE_TYPEINFO(signed char, Q_PRIMITIVE_TYPE);
Q_DECLARE_TYPEINFO(uchar, Q_PRIMITIVE_TYPE);
Q_DECLARE_TYPEINFO(short, Q_PRIMITIVE_TYPE);
Q_DECLARE_TYPEINFO(ushort, Q_PRIMITIVE_TYPE);
Q_DECLARE_TYPEINFO(int, Q_PRIMITIVE_TYPE);
Q_DECLARE_TYPEINFO(uint, Q_PRIMITIVE_TYPE);
Q_DECLARE_TYPEINFO(long, Q_PRIMITIVE_TYPE);
Q_DECLARE_TYPEINFO(ulong, Q_PRIMITIVE_TYPE);
Q_DECLARE_TYPEINFO(qint64, Q_PRIMITIVE_TYPE);
Q_DECLARE_TYPEINFO(quint64, Q_PRIMITIVE_TYPE);
Q_DECLARE_TYPEINFO(float, Q_PRIMITIVE_TYPE);
Q_DECLARE_TYPEINFO(double, Q_PRIMITIVE_TYPE);
#if QT_VERSION >= QT_VERSION_CHECK(6,0,0)
// ### Qt 6: remove the other branch
// This was required so that QList<T> for these types allocates out of the array storage
Q_DECLARE_TYPEINFO(long double, Q_PRIMITIVE_TYPE);
# ifdef Q_COMPILER_UNICODE_STRINGS
Q_DECLARE_TYPEINFO(char16_t, Q_PRIMITIVE_TYPE);
Q_DECLARE_TYPEINFO(char32_t, Q_PRIMITIVE_TYPE);
# endif
# if !defined(Q_CC_MSVC) || defined(_NATIVE_WCHAR_T_DEFINED)
Q_DECLARE_TYPEINFO(wchar_t, Q_PRIMITIVE_TYPE);
# endif
#else
# ifndef Q_OS_DARWIN
Q_DECLARE_TYPEINFO(long double, Q_PRIMITIVE_TYPE);
# else
Q_DECLARE_TYPEINFO(long double, Q_RELOCATABLE_TYPE);
# endif
# ifdef Q_COMPILER_UNICODE_STRINGS
Q_DECLARE_TYPEINFO(char16_t, Q_RELOCATABLE_TYPE);
Q_DECLARE_TYPEINFO(char32_t, Q_RELOCATABLE_TYPE);
# endif
# if !defined(Q_CC_MSVC) || defined(_NATIVE_WCHAR_T_DEFINED)
Q_DECLARE_TYPEINFO(wchar_t, Q_RELOCATABLE_TYPE);
# endif
#endif // Qt 6
namespace QTypeTraits
{

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@ -1459,7 +1459,7 @@ namespace QtPrivate {
template<typename T>
struct QMetaTypeTypeFlags
{
enum { Flags = (QTypeInfoQuery<T>::isRelocatable ? QMetaType::MovableType : 0)
enum { Flags = (QTypeInfo<T>::isRelocatable ? QMetaType::MovableType : 0)
| (QTypeInfo<T>::isComplex ? QMetaType::NeedsConstruction : 0)
| (QTypeInfo<T>::isComplex ? QMetaType::NeedsDestruction : 0)
| (IsPointerToTypeDerivedFromQObject<T>::Value ? QMetaType::PointerToQObject : 0)

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@ -174,7 +174,7 @@ struct QArrayExceptionSafetyPrimitives
T *const end;
qsizetype displace;
static_assert(QTypeInfoQuery<T>::isRelocatable, "Type must be relocatable");
static_assert(QTypeInfo<T>::isRelocatable, "Type must be relocatable");
Displacer(T *start, T *finish, qsizetype diff) noexcept
: begin(start), end(finish), displace(diff)
@ -201,7 +201,7 @@ struct QArrayExceptionSafetyPrimitives
size_t n;
qsizetype &size;
static_assert(QTypeInfoQuery<T>::isRelocatable, "Type must be relocatable");
static_assert(QTypeInfo<T>::isRelocatable, "Type must be relocatable");
Mover(T *&start, size_t length, qsizetype &sz) noexcept
: destination(start), source(start), n(length), size(sz)
@ -1018,7 +1018,7 @@ struct QArrayOpsSelector
template <class T>
struct QArrayOpsSelector<T,
typename std::enable_if<
!QTypeInfoQuery<T>::isComplex && QTypeInfoQuery<T>::isRelocatable
!QTypeInfo<T>::isComplex && QTypeInfo<T>::isRelocatable
>::type>
{
typedef QPodArrayOps<T> Type;
@ -1027,7 +1027,7 @@ struct QArrayOpsSelector<T,
template <class T>
struct QArrayOpsSelector<T,
typename std::enable_if<
QTypeInfoQuery<T>::isComplex && QTypeInfoQuery<T>::isRelocatable
QTypeInfo<T>::isComplex && QTypeInfo<T>::isRelocatable
>::type>
{
typedef QMovableArrayOps<T> Type;

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@ -61,7 +61,7 @@ namespace QtPrivate
template <typename T, typename N>
void q_uninitialized_relocate_n(T* first, N n, T* out)
{
if constexpr (QTypeInfoQuery<T>::isRelocatable) {
if constexpr (QTypeInfo<T>::isRelocatable) {
if (n != N(0)) { // even if N == 0, out == nullptr or first == nullptr are UB for memmove()
std::memmove(static_cast<void*>(out),
static_cast<const void*>(first),
@ -69,7 +69,7 @@ void q_uninitialized_relocate_n(T* first, N n, T* out)
}
} else {
std::uninitialized_move_n(first, n, out);
if constexpr (QTypeInfoQuery<T>::isComplex)
if constexpr (QTypeInfo<T>::isComplex)
std::destroy_n(first, n);
}
}

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@ -429,7 +429,7 @@ Q_OUTOFLINE_TEMPLATE void QVarLengthArray<T, Prealloc>::realloc(qsizetype asize,
a = Prealloc;
}
s = 0;
if (!QTypeInfoQuery<T>::isRelocatable) {
if (!QTypeInfo<T>::isRelocatable) {
QT_TRY {
// move all the old elements
while (s < copySize) {
@ -556,7 +556,7 @@ Q_OUTOFLINE_TEMPLATE typename QVarLengthArray<T, Prealloc>::iterator QVarLengthA
if (n != 0) {
resize(s + n);
const T copy(t);
if (!QTypeInfoQuery<T>::isRelocatable) {
if (!QTypeInfo<T>::isRelocatable) {
T *b = ptr + offset;
T *j = ptr + s;
T *i = j - n;

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@ -108,12 +108,6 @@ template <int N, int M, typename T>
class QTypeInfo<QGenericMatrix<N, M, T> >
: public QTypeInfoMerger<QGenericMatrix<N, M, T>, T>
{
#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
public:
enum {
isStatic = true,
}; // at least Q_RELOCATABLE_TYPE, for BC during Qt 5
#endif
};
template <int N, int M, typename T>
@ -350,7 +344,7 @@ QDebug operator<<(QDebug dbg, const QGenericMatrix<N, M, T> &m)
{
QDebugStateSaver saver(dbg);
dbg.nospace() << "QGenericMatrix<" << N << ", " << M
<< ", " << QTypeInfo<T>::name()
<< ", " << QMetaType::fromType<T>().name()
<< ">(" << Qt::endl << qSetFieldWidth(10);
for (int row = 0; row < M; ++row) {
for (int col = 0; col < N; ++col)

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@ -152,7 +152,7 @@ enum class MyStrictNoOpEnum { StrictZero, StrictOne, StrictTwo, StrictFour=4 };
Q_DECLARE_FLAGS( MyStrictNoOpFlags, MyStrictNoOpEnum )
static_assert( !QTypeInfo<MyStrictFlags>::isComplex );
static_assert( !QTypeInfo<MyStrictFlags>::isStatic );
static_assert( QTypeInfo<MyStrictFlags>::isRelocatable );
static_assert( !QTypeInfo<MyStrictFlags>::isPointer );
void tst_QFlags::classEnum()
@ -322,7 +322,7 @@ Q_DECLARE_FLAGS( MyFlags, MyEnum )
Q_DECLARE_OPERATORS_FOR_FLAGS( MyFlags )
static_assert( !QTypeInfo<MyFlags>::isComplex );
static_assert( !QTypeInfo<MyFlags>::isStatic );
static_assert( QTypeInfo<MyFlags>::isRelocatable );
static_assert( !QTypeInfo<MyFlags>::isPointer );
QTEST_MAIN(tst_QFlags)

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@ -919,6 +919,11 @@ FOR_EACH_CORE_METATYPE(RETURN_CREATE_COPY_FUNCTION)
TypeTestFunctionGetter::get(type)();
}
template<typename T>
constexpr size_t getSize = sizeof(T);
template<>
constexpr size_t getSize<void> = 0;
void tst_QMetaType::sizeOf_data()
{
QTest::addColumn<int>("type");
@ -926,7 +931,7 @@ void tst_QMetaType::sizeOf_data()
QTest::newRow("QMetaType::UnknownType") << int(QMetaType::UnknownType) << size_t(0);
#define ADD_METATYPE_TEST_ROW(MetaTypeName, MetaTypeId, RealType) \
QTest::newRow(#RealType) << int(QMetaType::MetaTypeName) << size_t(QTypeInfo<RealType>::sizeOf);
QTest::newRow(#RealType) << int(QMetaType::MetaTypeName) << getSize<RealType>;
FOR_EACH_CORE_METATYPE(ADD_METATYPE_TEST_ROW)
#undef ADD_METATYPE_TEST_ROW
@ -1074,8 +1079,8 @@ void tst_QMetaType::flags_data()
#define ADD_METATYPE_TEST_ROW(MetaTypeName, MetaTypeId, RealType) \
QTest::newRow(#RealType) << MetaTypeId \
<< bool(QTypeInfoQuery<RealType>::isRelocatable) \
<< bool(QTypeInfoQuery<RealType>::isComplex) \
<< bool(QTypeInfo<RealType>::isRelocatable) \
<< bool(QTypeInfo<RealType>::isComplex) \
<< bool(QtPrivate::IsPointerToTypeDerivedFromQObject<RealType>::Value) \
<< bool(std::is_enum<RealType>::value);
QT_FOR_EACH_STATIC_CORE_CLASS(ADD_METATYPE_TEST_ROW)

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@ -3187,7 +3187,7 @@ template<class T> void playWithVariant(const T &orig, bool isNull, const QString
{
QVariant v2 = v;
if (!(QTypeInfo<T>::isStatic && QTypeInfo<T>::isComplex)) {
if (QTypeInfo<T>::isRelocatable) {
// Type is movable so standard comparison algorithm in QVariant should work
// In a custom type QVariant is not aware of ==operator so it won't be called,
// which may cause problems especially visible when using a not-movable type
@ -3204,7 +3204,7 @@ template<class T> void playWithVariant(const T &orig, bool isNull, const QString
v = QVariant();
QCOMPARE(v3, v);
v = v2;
if (!(QTypeInfo<T>::isStatic && QTypeInfo<T>::isComplex)) {
if (QTypeInfo<T>::isRelocatable) {
// Type is movable so standard comparison algorithm in QVariant should work
// In a custom type QVariant is not aware of ==operator so it won't be called,
// which may cause problems especially visible when using a not-movable type

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@ -1880,7 +1880,7 @@ void tst_QByteArray::movablity()
{
QFETCH(QByteArray, array);
static_assert(!QTypeInfo<QByteArray>::isStatic);
static_assert(QTypeInfo<QByteArray>::isRelocatable);
const int size = array.size();
const bool isEmpty = array.isEmpty();

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@ -800,9 +800,12 @@ void tst_QArrayData::arrayOps()
};
const CountedObject objArray[5];
QVERIFY(!QTypeInfo<int>::isComplex && !QTypeInfo<int>::isStatic);
QVERIFY(QTypeInfo<QString>::isComplex && !QTypeInfo<QString>::isStatic);
QVERIFY(QTypeInfo<CountedObject>::isComplex && QTypeInfo<CountedObject>::isStatic);
static_assert(!QTypeInfo<int>::isComplex);
static_assert(QTypeInfo<int>::isRelocatable);
static_assert(QTypeInfo<QString>::isComplex);
static_assert(QTypeInfo<QString>::isRelocatable);
static_assert(QTypeInfo<CountedObject>::isComplex);
static_assert(!QTypeInfo<CountedObject>::isRelocatable);
QCOMPARE(CountedObject::liveCount, size_t(5));
for (size_t i = 0; i < 5; ++i)

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@ -184,11 +184,11 @@ inline size_t qHash(const Custom &key, size_t seed = 0) { return qHash(key.i, se
Q_DECLARE_METATYPE(Custom);
// tests depends on the fact that:
static_assert(!QTypeInfo<int>::isStatic);
static_assert(QTypeInfo<int>::isRelocatable);
static_assert(!QTypeInfo<int>::isComplex);
static_assert(!QTypeInfo<Movable>::isStatic);
static_assert(QTypeInfo<Movable>::isRelocatable);
static_assert(QTypeInfo<Movable>::isComplex);
static_assert(QTypeInfo<Custom>::isStatic);
static_assert(!QTypeInfo<Custom>::isRelocatable);
static_assert(QTypeInfo<Custom>::isComplex);
@ -2144,7 +2144,7 @@ void tst_QList::resizePOD_data() const
QTest::addColumn<int>("size");
QVERIFY(!QTypeInfo<int>::isComplex);
QVERIFY(!QTypeInfo<int>::isStatic);
QVERIFY(QTypeInfo<int>::isRelocatable);
QList<int> null;
QList<int> empty(0, 5);
@ -2192,7 +2192,7 @@ void tst_QList::resizeComplexMovable_data() const
QTest::addColumn<int>("size");
QVERIFY(QTypeInfo<Movable>::isComplex);
QVERIFY(!QTypeInfo<Movable>::isStatic);
QVERIFY(QTypeInfo<Movable>::isRelocatable);
QList<Movable> null;
QList<Movable> empty(0, 'Q');
@ -2244,7 +2244,7 @@ void tst_QList::resizeComplex_data() const
QTest::addColumn<int>("size");
QVERIFY(QTypeInfo<Custom>::isComplex);
QVERIFY(QTypeInfo<Custom>::isStatic);
QVERIFY(!QTypeInfo<Custom>::isRelocatable);
QList<Custom> null;
QList<Custom> empty(0, '0');

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@ -43,7 +43,7 @@ private Q_SLOTS:
void testDeductionRules();
};
class C { C() {} Q_DECL_UNUSED_MEMBER char _[4]; };
class C { C() {} ~C() {} Q_DECL_UNUSED_MEMBER char _[4]; };
class M { M() {} Q_DECL_UNUSED_MEMBER char _[4]; };
class P { Q_DECL_UNUSED_MEMBER char _[4]; };
@ -64,31 +64,31 @@ typedef QPair<P,M> QPairPM;
typedef QPair<P,P> QPairPP;
static_assert( QTypeInfo<QPairCC>::isComplex);
static_assert( QTypeInfo<QPairCC>::isStatic );
static_assert( !QTypeInfo<QPairCC>::isRelocatable );
static_assert( QTypeInfo<QPairCM>::isComplex);
static_assert( QTypeInfo<QPairCM>::isStatic );
static_assert( !QTypeInfo<QPairCM>::isRelocatable );
static_assert( QTypeInfo<QPairCP>::isComplex);
static_assert( QTypeInfo<QPairCP>::isStatic );
static_assert( !QTypeInfo<QPairCP>::isRelocatable );
static_assert( QTypeInfo<QPairMC>::isComplex);
static_assert( QTypeInfo<QPairMC>::isStatic );
static_assert( !QTypeInfo<QPairMC>::isRelocatable );
static_assert( QTypeInfo<QPairMM>::isComplex);
static_assert(!QTypeInfo<QPairMM>::isStatic );
static_assert( QTypeInfo<QPairMM>::isRelocatable );
static_assert( QTypeInfo<QPairMP>::isComplex);
static_assert(!QTypeInfo<QPairMP>::isStatic );
static_assert( QTypeInfo<QPairMP>::isRelocatable );
static_assert( QTypeInfo<QPairPC>::isComplex);
static_assert( QTypeInfo<QPairPC>::isStatic );
static_assert( !QTypeInfo<QPairPC>::isRelocatable );
static_assert( QTypeInfo<QPairPM>::isComplex);
static_assert(!QTypeInfo<QPairPM>::isStatic );
static_assert( QTypeInfo<QPairPM>::isRelocatable );
static_assert(!QTypeInfo<QPairPP>::isComplex);
static_assert(!QTypeInfo<QPairPP>::isStatic );
static_assert( QTypeInfo<QPairPP>::isRelocatable );
static_assert(!QTypeInfo<QPairPP>::isPointer);

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@ -528,11 +528,11 @@ void reallocTest()
typedef QVarLengthArray<T, 16> Container;
enum {
isStatic = QTypeInfo<T>::isStatic,
isRelocatable = QTypeInfo<T>::isRelocatable,
isComplex = QTypeInfo<T>::isComplex,
isPrimitive = !isComplex && !isStatic,
isMovable = !isStatic
isPrimitive = !isComplex && isRelocatable,
isMovable = isRelocatable
};
// Constructors

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@ -325,7 +325,7 @@ void tst_QGuiMetaType::flags_data()
QTest::addColumn<bool>("isComplex");
#define ADD_METATYPE_TEST_ROW(MetaTypeName, MetaTypeId, RealType) \
QTest::newRow(#RealType) << MetaTypeId << bool(QTypeInfoQuery<RealType>::isRelocatable) << bool(QTypeInfoQuery<RealType>::isComplex);
QTest::newRow(#RealType) << MetaTypeId << bool(QTypeInfo<RealType>::isRelocatable) << bool(QTypeInfo<RealType>::isComplex);
QT_FOR_EACH_STATIC_GUI_CLASS(ADD_METATYPE_TEST_ROW)
#undef ADD_METATYPE_TEST_ROW
}

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@ -361,7 +361,7 @@ void QRawVector<T>::realloc(int asize, int aalloc, bool ref)
T *xbegin = m_begin;
if (aalloc != xalloc || ref) {
// (re)allocate memory
if (QTypeInfo<T>::isStatic) {
if (!QTypeInfo<T>::isRelocatable) {
xbegin = allocate(aalloc);
xsize = 0;
changed = true;
@ -462,7 +462,7 @@ typename QRawVector<T>::iterator QRawVector<T>::insert(iterator before, size_typ
const T copy(t);
if (m_size + n > m_alloc)
realloc(m_size, QVectorData::grow(offsetOfTypedData(), m_size + n, sizeof(T)), false);
if (QTypeInfo<T>::isStatic) {
if (!QTypeInfo<T>::isRelocatable) {
T *b = m_begin + m_size;
T *i = m_begin + m_size + n;
while (i != b)