code style fixes

headers/enduro2d/core/profiler.hpp

@@ -8,6 +8,8 @@
 
 #include "_core.hpp"
 
+#include "deferrer.hpp"
+
 namespace e2d
 {
     class profiler final : public module<profiler> {

samples/sources/sample_03/sample_03.cpp

@@ -36,6 +36,20 @@ namespace
             if ( k.is_key_pressed(keyboard_key::lsuper) && k.is_key_just_released(keyboard_key::enter) ) {
                 the<window>().toggle_fullscreen(!the<window>().fullscreen());
             }
+
+            if ( k.is_key_just_released(keyboard_key::space) ) {
+                the<profiler>().record_for(std::chrono::seconds(1))
+                .then([](const profiler::recording_info& info){
+                    the<debug>().trace("Profile done: %0", info.events.size());
+                    profilers::try_save_recording_info(info, the<vfs>().write({"desktop", "trace.json"}, false));
+                });
+                the<deferrer>().do_in_main_thread([](){
+                    the<library>().load_asset_async<prefab_asset>("scenes/spine_scene_prefab.json")
+                    .then([](const prefab_asset::load_result& prefab_data){
+                        the<world>().instantiate(prefab_data->content());
+                    });
+                });
+            }
         }
     };
 

sources/enduro2d/core/profiler.cpp

@@ -6,7 +6,6 @@
 
 #include <enduro2d/core/profiler.hpp>
 
-#include <enduro2d/core/deferrer.hpp>
 #include <enduro2d/core/engine.hpp>
 #include <enduro2d/core/vfs.hpp>
 

sources/enduro2d/core/vfs.cpp

@@ -179,7 +179,7 @@ namespace e2d
             {"url", url.schemepath()}
         });
         return load_async(url).then([](auto&& src){
-            return std::optional(std::forward<decltype(src)>(src));
+            return std::optional<buffer>(std::forward<decltype(src)>(src));
         }).get_or_default(std::nullopt);
     }
 
@@ -202,7 +202,7 @@ namespace e2d
             {"url", url.schemepath()}
         });
         return load_as_string_async(url).then([](auto&& src){
-            return std::optional(std::forward<decltype(src)>(src));
+            return std::optional<str>(std::forward<decltype(src)>(src));
         }).get_or_default(std::nullopt);
     }