.

json/json_functions.h

@@ -260,6 +260,28 @@ template <typename T> bool loadjson(const jsonval& parent, std::string key, T& i
     return true;
 }
 
+template <typename T> static bool loadjson(const jsonval& parent, const std::string& key, svalue<T>& value, const bool exist = true)
+{
+    jsonval::ConstMemberIterator itr;
+
+    bool* loaded = nullptr;
+    if (!extract_value(parent, key, exist, loaded, itr)) {
+        return false;
+    }
+
+    const jsonval& a = itr->value;
+
+    if (!a.IsObject()) {
+        throw Exp() << "error: element is not an object";
+    }
+
+    T val;
+    val.load(itr->value);
+    value = val;
+
+    return true;
+}
+
 template <typename T> bool loadjson(const jsonval& parent, const std::string& key, T& item, const bool exist = true, bool* loaded = nullptr)
 {
     jsonval::ConstMemberIterator itr;