From 2933a3a29a229d21b61d90cb73e2b67a935b2076 Mon Sep 17 00:00:00 2001
From: Martchus <martchus@gmx.net>
Date: Fri, 27 Oct 2017 15:36:09 +0200
Subject: [PATCH] WIP: Add toJsonAs()

---
 generator/tests/jsongenerator.cpp |  2 +-
 lib/jsonserializable.h            | 10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/generator/tests/jsongenerator.cpp b/generator/tests/jsongenerator.cpp
index 274a9f9..e043ed6 100644
--- a/generator/tests/jsongenerator.cpp
+++ b/generator/tests/jsongenerator.cpp
@@ -126,7 +126,7 @@ void OverallTests::testSingleInheritence()
         "{\"someInt\":42,\"someString\":\"the answer\",\"yetAnotherString\":\"but what was the question\",\"someBool\":false}");
 
     // test serialization
-    CPPUNIT_ASSERT_EQUAL(expectedJSONForBase, string(static_cast<const JSONSerializable<TestStruct> &>(test).toJson().GetString()));
+    CPPUNIT_ASSERT_EQUAL(expectedJSONForBase, string(test.toJsonAs<TestStruct>().GetString()));
     CPPUNIT_ASSERT_EQUAL(expectedJSONForDerived, string(static_cast<const JSONSerializable<DerivedTestStruct> &>(test).toJson().GetString()));
 
     // test deserialization
diff --git a/lib/jsonserializable.h b/lib/jsonserializable.h
index f20cf01..6e43c8b 100644
--- a/lib/jsonserializable.h
+++ b/lib/jsonserializable.h
@@ -29,6 +29,9 @@ template <typename Type> struct JSONSerializable {
     static Type fromJson(const char *json);
     static Type fromJson(const std::string &json);
 
+    template<typename ViewType, Traits::EnableIf<std::is_same<ViewType, Type>>...>
+    RAPIDJSON_NAMESPACE::StringBuffer toJsonAs() const;
+
     static constexpr const char *qualifiedName = "ReflectiveRapidJSON::JSONSerializable";
 };
 
@@ -81,6 +84,13 @@ template <typename Type> Type JSONSerializable<Type>::fromJson(const std::string
     return Reflector::fromJson<Type>(json.data(), json.size());
 }
 
+template<typename Type>
+template<typename ViewType, Traits::EnableIf<std::is_same<ViewType, Type>>...>
+RAPIDJSON_NAMESPACE::StringBuffer JSONSerializable<Type>::toJsonAs() const
+{
+    return static_cast<const ViewType *>(this)->toJson();
+}
+
 } // namespace ReflectiveRapidJSON
 
 #endif // REFLECTIVE_RAPIDJSON_JSON_SERIALIZABLE_H