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reflective-rapidjson
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Deserialize enums as well

This commit is contained in:
Martchus 2017-12-22 20:29:38 +01:00
parent 7b6fe57aac
commit 9a2c2cfef6
2 changed files with 20 additions and 1 deletions
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3
README.md
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@ -32,7 +32,8 @@ The following table shows the mapping of supported C++ types to supported JSON t
* Raw pointer are not supported. This prevents
forgetting to free memoery which would have to be allocated when deserializing.
* For the same reason `const char *` strings are only supported for serialization.
* Enums are only supported for serialization.
* Enums are (de)serialized as their underlying integer value. When deserializing, it is currently *not* checked
whether the present integer value is a valid enumeration item.
* For deserialization, iteratables must provide an `emplace_back` method. So deserialization of eg. `std::forward_list`
is currently not supported.
* The JSON type for smart pointer depends on the type the pointer refers to. It can also be `null`.

18
lib/json/reflector.h
View File

@ -359,6 +359,24 @@ inline void pull(
reflectable = value.Get<Type>();
}
/*!
* \brief Pulls the specified enumeration item from the specified value which is supposed and checked to be compatible with the underlying type.
* \remarks It is *not* checked, whether \a value is actually a valid enum item.
*/
template <typename Type, Traits::EnableIfAny<std::is_enum<Type>>...>
inline void pull(
Type &reflectable, const RAPIDJSON_NAMESPACE::GenericValue<RAPIDJSON_NAMESPACE::UTF8<char>> &value, JsonDeserializationErrors *errors)
{
using ExpectedType = Traits::Conditional<std::is_unsigned<typename std::underlying_type<Type>::type>, uint64, int64>;
if (!value.Is<ExpectedType>()) {
if (errors) {
errors->reportTypeMismatch<ExpectedType>(value.GetType());
}
return;
}
reflectable = static_cast<Type>(value.Get<ExpectedType>());
}
/*!
* \brief Pulls the std::string from the specified value which is supposed and checked to contain a string.
*/