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Added operator for QFlags

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This commit is contained in:
Klaus Basan
2016-05-24 00:08:33 +02:00
parent 2df190514f
commit 2e4d5fd40e
1 changed files with 31 additions and 4 deletions
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35
src/blackmisc/json.h
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@@ -77,6 +77,15 @@ std::enable_if_t<std::is_enum<ENUM>::value, QJsonObject>
return json; return json;
} }
//! \brief Specialized JSON serialization for QFlags generated enum
//! \ingroup JSON
template<class ENUM>
QJsonObject &operator<<(QJsonObject &json, std::pair<QString, const QFlags<ENUM> &> value)
{
json.insert(value.first, QJsonValue(static_cast<int>(value.second)));
return json;
}
//! \brief Specialized JSON deserialization for enum //! \brief Specialized JSON deserialization for enum
//! \ingroup JSON //! \ingroup JSON
template<class ENUM> template<class ENUM>
@@ -87,6 +96,15 @@ const &operator>>(const QJsonValue &json, ENUM &value)
return json; return json;
} }
//! \brief Specialized JSON deserialization for QFlags enum
//! \ingroup JSON
template<class ENUM>
const QJsonValue &operator>>(const QJsonValue &json, QFlags<ENUM> &value)
{
value = static_cast<QFlags<ENUM>>(json.toInt());
return json;
}
//! \brief Specialized JSON deserialization for enum //! \brief Specialized JSON deserialization for enum
//! \ingroup JSON //! \ingroup JSON
template<class ENUM> template<class ENUM>
@@ -97,6 +115,15 @@ const &operator>>(const QJsonValueRef &json, ENUM &value)
return json; return json;
} }
//! \brief Specialized JSON deserialization for QFlags enum
//! \ingroup JSON
template<class ENUM>
const QJsonValueRef &operator>>(const QJsonValueRef &json, QFlags<ENUM> &value)
{
value = static_cast<QFlags<ENUM>>(json.toInt());
return json;
}
//! \brief Specialized JSON deserialization for pair //! \brief Specialized JSON deserialization for pair
//! \ingroup JSON //! \ingroup JSON
template<class FIRST, class SECOND> template<class FIRST, class SECOND>
@@ -257,7 +284,7 @@ namespace BlackMisc
{ {
QJsonObject json; QJsonObject json;
auto meta = introspect<Derived>().without(MetaFlags<DisabledForJson>()); auto meta = introspect<Derived>().without(MetaFlags<DisabledForJson>());
meta.forEachMemberName(*derived(), [ & ](const auto &member, const QString &name) meta.forEachMemberName(*derived(), [ & ](const auto & member, const QString & name)
{ {
json << std::pair<QString, const std::decay_t<decltype(member)> &>(name, member); // std::make_pair causes an ambiguous operator<< json << std::pair<QString, const std::decay_t<decltype(member)> &>(name, member); // std::make_pair causes an ambiguous operator<<
}); });
@@ -276,7 +303,7 @@ namespace BlackMisc
{ {
baseConvertFromJson(static_cast<BaseOfT<Derived> *>(derived()), json); baseConvertFromJson(static_cast<BaseOfT<Derived> *>(derived()), json);
auto meta = introspect<Derived>().without(MetaFlags<DisabledForJson>()); auto meta = introspect<Derived>().without(MetaFlags<DisabledForJson>());
meta.forEachMemberName(*derived(), [ & ](auto &member, const QString &name) { json.value(name) >> member; }); meta.forEachMemberName(*derived(), [ & ](auto & member, const QString & name) { json.value(name) >> member; });
} }
//! Assign from JSON object string //! Assign from JSON object string
@@ -302,8 +329,8 @@ namespace BlackMisc
* the derived class uses this macro to disambiguate the inherited members. * the derived class uses this macro to disambiguate the inherited members.
*/ */
# define BLACKMISC_DECLARE_USING_MIXIN_JSON(DERIVED) \ # define BLACKMISC_DECLARE_USING_MIXIN_JSON(DERIVED) \
using ::BlackMisc::Mixin::JsonByMetaClass<DERIVED>::toJson; \ using ::BlackMisc::Mixin::JsonByMetaClass<DERIVED>::toJson; \
using ::BlackMisc::Mixin::JsonByMetaClass<DERIVED>::convertFromJson; using ::BlackMisc::Mixin::JsonByMetaClass<DERIVED>::convertFromJson;
} // Mixin } // Mixin
} // BlackMisc } // BlackMisc