4 files changed, 98 insertions, 1 deletions

diff --git a/modules/lang/c++/c_common.hpp b/modules/lang/c++/c_common.hpp
index 6999126..968c4c0 100644
--- a/modules/lang/c++/c_common.hpp
+++ b/modules/lang/c++/c_common.hpp
@@ -4,4 +4,53 @@ namespace saw {
 namespace lang {
 struct RemoteC {};
 }
+
+namespace lang_c {
+struct config {
+	std::string prefix;
+};
+
+struct transfer_binding_state {
+	struct info {
+		std::string type;
+	};
+
+	std::map<uint32_t, binding_state::info> hashes;
+
+	struct transpiled_element {
+		uint32_t crc32;
+		std::string header;
+		std::string source;
+	};
+
+	std::vector<transfer_binding_state::transpiled_element> tp_elements;
+
+	error_or<uint64_t> find_id_by_crc32(uint32_t hash){
+		for(uint64_t iter = 0; iter < tp_elements.size(); ++iter){
+			if(tp_elements.at(iter).crc32 == hash){
+				return iter;
+			}
+		}
+
+		return make_error<err::not_found>();
+	}
+
+	error_or<uint64_t> add_tp_element(uint32_t hash){
+		uint64_t id{};
+
+		try {
+			language_binding_state::transpiled_element ele;
+
+			ele.crc32 = hash;
+
+			id = tp_elements.size();
+			tp_elements.emplace_back(std::move(ele));
+		}catch(const std::exception&){
+			return make_error<err::out_of_memory>();
+		}
+
+		return id;
+	}
+};
+}
 }
diff --git a/modules/lang/c++/c_language.hpp b/modules/lang/c++/c_language.hpp
index c4b1d48..db3c97e 100644
--- a/modules/lang/c++/c_language.hpp
+++ b/modules/lang/c++/c_language.hpp
@@ -1,7 +1,7 @@
 #pragma once
 
-#include "c_transfer.hpp"
 #include "c_helper.hpp"
+#include "c_transfer.hpp"
 #include "c_rpc.hpp"
 
 namespace saw {
@@ -12,6 +12,11 @@ public:
 		std::string prefix;
 	};
 public:
+	error_or<void> generate_transfer(const config& cfg){
+
+		return make_error<err::not_implemented>();
+	}
+
 	error_or<void> generate_rpc(const config& cfg){
 		return make_error<err::not_implemented>();
 	}
diff --git a/modules/lang/c++/c_transfer.hpp b/modules/lang/c++/c_transfer.hpp
index 5de204c..953f732 100644
--- a/modules/lang/c++/c_transfer.hpp
+++ b/modules/lang/c++/c_transfer.hpp
@@ -4,4 +4,43 @@
 #include "c_types.hpp"
 
 namespace saw {
+namespace impl {
+template<typename T, typename Enc>
+struct c_transfer_generater;
+
+template<typename T, typename Enc>
+struct c_transfer_generater<T,Enc> {
+public:
+	static error_or<void> apply (const lang_c::config& cfg, lang_c::transfer_binding_state& state){
+
+		return make_error<err::not_implemented>();
+	}
+};
+
+template<typename... TransTypes, typename Enc>
+struct c_transfer_generater<tmpl_group<TransTypes...>, Enc> {
+private:
+	// Not used currently
+	using ReducedTmplGroup = typename tmpl_reduce<tmpl_group<TransTypes...>>::type;
+private:
+	template<uint64_t i>
+	static error_or<void> apply_ele(const lang_c::config& cfg, lang_c::transfer_binding_state& state){
+		if constexpr ( i < sizeof...(TransTypes)){
+			{
+				using pType = typename parameter_pack_type<i, TransTypes...>::type;
+				auto eov = c_transfer_generater<pType, Enc>::apply(cfg,state);
+				if(eov.is_error()){
+					return eov;
+				}
+			}
+			return apply_ele<i+1u>(cfg,state);
+		}
+		return make_void();
+	}
+public:
+	static error_or<void> apply(const lang_c::config& cfg, lang_c::transfer_binding_state& state){
+		return apply_ele<0u>(cfg, state);
+	}
+};
+}
 }
diff --git a/modules/lang/c++/c_types.hpp b/modules/lang/c++/c_types.hpp
index ff3f5a8..16829f4 100644
--- a/modules/lang/c++/c_types.hpp
+++ b/modules/lang/c++/c_types.hpp
@@ -18,6 +18,10 @@ struct c_is_primitive<schema::Primitive<T,N>> {
 		static constexpr bool value = true;
 };
 
+/**
+ * Returns the string of the name and type of the primitive in C
+ * The name value provides information on how that element should be named.
+ */
 template<typename Schema>
 struct c_primitive_string {
 	static_assert(always_false<Schema>, "Not supported");