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-rw-r--r--src/codec-json/json.tmpl.h76
1 files changed, 76 insertions, 0 deletions
diff --git a/src/codec-json/json.tmpl.h b/src/codec-json/json.tmpl.h
index 38959b2..0d1c7f0 100644
--- a/src/codec-json/json.tmpl.h
+++ b/src/codec-json/json.tmpl.h
@@ -227,5 +227,81 @@ struct json_encode<schema::Struct<schema::Member<T,Key>...>, RootSchema, FromEnc
return void_t{};
}
};
+
+template<typename... T, string_literal... Key, typename RootSchema, typename FromEncode>
+struct json_encode<schema::Union<schema::Member<T,Key>...>, RootSchema, FromEncode> {
+
+ template<size_t i>
+ static error_or<void> encode_element(const data<schema::Union<schema::Member<T,Key>...>, FromEncode>& from, buffer& to){
+ if(from.template holds_alternative<typename parameter_key_pack_type<i, Key...>::literal>()){
+ // Encode the name
+ {
+ std::string_view view = parameter_key_pack_type<i, Key...>::literal.view();
+ error err = to.push('"');
+ if(!err.template is_type<err::no_error>()){
+ return err;
+ }
+ err = to.push(*reinterpret_cast<const uint8_t *>(view.data()), view.size());
+ if(!err.template is_type<err::no_error>()){
+ return err;
+ }
+ err = to.push('"');
+ if(!err.template is_type<err::no_error>()){
+ return err;
+ }
+ }
+ // Add the separator
+ {
+ auto eov_ele = to.push(':');
+ if(!eov_ele.template is_type<err::no_error>()){
+ return eov_ele;
+ }
+ }
+
+ // Encode the value
+ auto eov = json_encode<typename parameter_pack_type<i, T...>::type, RootSchema, FromEncode>::encode(from.template get<parameter_key_pack_type<i, Key...>::literal>(), to);
+ }
+ // Go to the next element
+ if constexpr ( (i+1) < sizeof...(T)){
+ {
+ auto eov_ele = encode_element<i+1>(from, to);
+ if(eov_ele.is_error()){
+ return eov_ele;
+ }
+ }
+
+
+ }
+
+ return void_t{};
+ }
+ static error_or<void> encode(const data<schema::Union<schema::Member<T,Key>...>, FromEncode>& from, buffer& to) {
+ {
+ auto err = to.push('{');
+ if(!err.template is_type<err::no_error>()){
+ return err;
+ }
+ }
+ if constexpr ( sizeof...(T) > 0 ){
+ auto eov = encode_element<0>(from, to);
+ if(eov.is_error()){
+ return eov;
+ }
+ }
+ {
+ auto err = to.push('}');
+ if(!err.template is_type<err::no_error>()){
+ return err;
+ }
+ }
+
+ return void_t{};
+ }
+};
+
+template<typename Schema, typename RootSchema, typename ToDecode>
+struct json_decode;
+
+
}
}