Squashed 'external/entt/entt/' content from commit fef92113

git-subtree-dir: external/entt/entt
git-subtree-split: fef921132cae7588213d0f9bcd2fb9c8ffd8b7fc

test/lib/meta/lib.cpp

@@ -0,0 +1,38 @@
+#include <entt/core/attribute.h>
+#include <entt/core/hashed_string.hpp>
+#include <entt/meta/factory.hpp>
+#include <entt/meta/meta.hpp>
+#include "types.h"
+
+position create_position(int x, int y) {
+    return position{x, y};
+}
+
+ENTT_API void share(entt::locator<entt::meta_ctx>::node_type handle) {
+    entt::locator<entt::meta_ctx>::reset(handle);
+}
+
+ENTT_API void set_up() {
+    using namespace entt::literals;
+
+    entt::meta<position>()
+        .type("position"_hs)
+        .ctor<&create_position>()
+        .data<&position::x>("x"_hs)
+        .data<&position::y>("y"_hs);
+
+    entt::meta<velocity>()
+        .type("velocity"_hs)
+        .ctor<>()
+        .data<&velocity::dx>("dx"_hs)
+        .data<&velocity::dy>("dy"_hs);
+}
+
+ENTT_API void tear_down() {
+    entt::meta_reset<position>();
+    entt::meta_reset<velocity>();
+}
+
+ENTT_API entt::meta_any wrap_int(int value) {
+    return value;
+}