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| |
| #ifndef QANIMATIONJOBUTIL_P_H |
| #define QANIMATIONJOBUTIL_P_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include <type_traits> |
| |
| QT_REQUIRE_CONFIG(qml_animation); |
| |
| // SelfDeletable is used for self-destruction detection along with |
| // ACTION_IF_DELETED and RETURN_IF_DELETED macros. While using, the objects |
| // under test should have a member m_selfDeletable of type SelfDeletable |
| struct SelfDeletable { |
| ~SelfDeletable() { |
| if (m_wasDeleted) |
| *m_wasDeleted = true; |
| } |
| bool *m_wasDeleted = nullptr; |
| }; |
| |
| // \param p pointer to object under test, which should have a member m_selfDeletable of type SelfDeletable |
| // \param func statements or functions that to be executed under test. |
| // \param action post process if p was deleted under test. |
| #define ACTION_IF_DELETED(p, func, action) \ |
| { \ |
| static_assert(std::is_same<decltype((p)->m_selfDeletable), SelfDeletable>::value, "m_selfDeletable must be SelfDeletable");\ |
| bool *prevWasDeleted = (p)->m_selfDeletable.m_wasDeleted; \ |
| bool wasDeleted = false; \ |
| (p)->m_selfDeletable.m_wasDeleted = &wasDeleted; \ |
| {func;} \ |
| if (wasDeleted) { \ |
| if (prevWasDeleted) \ |
| *prevWasDeleted = true; \ |
| {action;} \ |
| } \ |
| (p)->m_selfDeletable.m_wasDeleted = prevWasDeleted; \ |
| } |
| |
| #define RETURN_IF_DELETED(func) \ |
| ACTION_IF_DELETED(this, func, return) |
| |
| #endif // QANIMATIONJOBUTIL_P_H |