diff options
Diffstat (limited to 'src/corelib/kernel/qmetatype_p.h')
| -rw-r--r-- | src/corelib/kernel/qmetatype_p.h | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/src/corelib/kernel/qmetatype_p.h b/src/corelib/kernel/qmetatype_p.h index 3defbc70ef..7e0457771f 100644 --- a/src/corelib/kernel/qmetatype_p.h +++ b/src/corelib/kernel/qmetatype_p.h @@ -38,20 +38,21 @@ QT_BEGIN_NAMESPACE assign_and_return \ } -class QMetaTypeModuleHelper +class Q_CORE_EXPORT QMetaTypeModuleHelper { Q_DISABLE_COPY_MOVE(QMetaTypeModuleHelper) protected: QMetaTypeModuleHelper() = default; ~QMetaTypeModuleHelper() = default; public: + Q_WEAK_OVERLOAD // prevent it from entering the ABI and rendering constexpr useless static constexpr auto makePair(int from, int to) -> quint64 { return (quint64(from) << 32) + quint64(to); } virtual const QtPrivate::QMetaTypeInterface *interfaceForType(int) const = 0; - virtual bool convert(const void *, int, void *, int) const { return false; } + virtual bool convert(const void *, int, void *, int) const; }; extern Q_CORE_EXPORT const QMetaTypeModuleHelper *qMetaTypeGuiHelper; @@ -152,7 +153,12 @@ inline bool isMoveConstructible(const QtPrivate::QMetaTypeInterface *iface) noex inline bool isDestructible(const QtPrivate::QMetaTypeInterface *iface) noexcept { - return checkMetaTypeFlagOrPointer(iface, iface->dtor, QMetaType::NeedsDestruction); + /* For metatypes of revision 1, the NeedsDestruction was set even for trivially + destructible types, but their dtor pointer would be null. + For that reason, we need the additional check here. + */ + return iface->revision < 1 || + checkMetaTypeFlagOrPointer(iface, iface->dtor, QMetaType::NeedsDestruction); } inline void defaultConstruct(const QtPrivate::QMetaTypeInterface *iface, void *where) @@ -173,6 +179,15 @@ inline void copyConstruct(const QtPrivate::QMetaTypeInterface *iface, void *wher memcpy(where, copy, iface->size); } +inline void moveConstruct(const QtPrivate::QMetaTypeInterface *iface, void *where, void *copy) +{ + Q_ASSERT(isMoveConstructible(iface)); + if (iface->moveCtr) + iface->moveCtr(iface, where, copy); + else + memcpy(where, copy, iface->size); +} + inline void construct(const QtPrivate::QMetaTypeInterface *iface, void *where, const void *copy) { if (copy) |