add dv::value.object(...), .list(...)

src/data/dv.hpp

@@ -228,6 +228,14 @@ namespace dv {
         value& operator[](size_t index);
 
         const value& operator[](size_t index) const;
+
+        value& object(const key_t& key);
+        
+        value& list(const key_t& key);
+
+        value& object();
+        
+        value& list();
     };
 
     using reference = value&;
@@ -355,4 +363,24 @@ namespace dv {
         }
         throw std::runtime_error("value is not a list");
     }
+
+    value& value::object(const key_t& key) {
+        reference ref = this->operator[](key);
+        ref = dv::object();
+        return ref;
+    }
+
+    value& value::list(const key_t& key) {
+        reference ref = this->operator[](key);
+        ref = dv::list();
+        return ref;
+    }
+
+    value& value::object() {
+        return add(dv::object());
+    }
+
+    value& value::list() {
+        return add(dv::list());
+    }
 }

test/data/dv.cpp

@@ -1,14 +1,33 @@
 #include <gtest/gtest.h>
 
 #include "data/dv.hpp"
+#include "data/dynamic.hpp"
+#include "util/timeutil.hpp"
 
 TEST(dv, dv) {
-    auto value = dv::object({
-        {"d", "test"}
-    });
-    auto list = dv::list({
-        561, 52, "hello"
-    });
-    list.add("world");
-    value["a"] = 51;
+    // speed comparsion with data/dynamic
+
+    {
+        timeutil::ScopeLogTimer log(444);
+        auto map = dynamic::create_map();
+        auto& list = map->putList("elements");
+        for (int i = 0; i < 10000; i++) {
+            auto& obj = list.putMap();
+            obj.put("name", "user");
+            obj.put("age", 90);
+            auto pos = dynamic::create_list({40, -41, 52});
+            obj.put("position", pos);
+        }
+    }
+    {
+        timeutil::ScopeLogTimer log(555);
+        auto value = dv::object();
+        auto& list = value.list("elements");
+        for (int i = 0; i < 10000; i++) {
+            auto& obj = list.object();
+            obj["name"] = "user";
+            obj["age"] = 90;
+            obj["position"] = dv::list({40, -41, 52});
+        }
+    }
 }