initial

external/entt/test/lib/meta/plugin_std/main.cpp

@@ -0,0 +1,51 @@
+#define CR_HOST
+
+#include <gtest/gtest.h>
+#include <cr.h>
+#include <entt/core/hashed_string.hpp>
+#include <entt/locator/locator.hpp>
+#include <entt/meta/context.hpp>
+#include <entt/meta/meta.hpp>
+#include <entt/meta/resolve.hpp>
+#include "userdata.h"
+
+TEST(Lib, Meta) {
+    using namespace entt::literals;
+
+    ASSERT_FALSE(entt::resolve("boxed_int"_hs));
+
+    userdata ud{};
+    ud.ctx = entt::locator<entt::meta_ctx>::handle();
+
+    cr_plugin ctx;
+    ctx.userdata = &ud;
+
+    cr_plugin_load(ctx, PLUGIN);
+    cr_plugin_update(ctx);
+
+    ASSERT_TRUE(entt::resolve("boxed_int"_hs));
+    ASSERT_TRUE(entt::resolve("empty"_hs));
+
+    auto boxed_int = entt::resolve("boxed_int"_hs).construct(4.);
+    auto empty = entt::resolve("empty"_hs).construct();
+
+    ASSERT_TRUE(boxed_int);
+    ASSERT_TRUE(empty);
+
+    ASSERT_EQ(boxed_int.type().data("value"_hs).type(), entt::resolve<int>());
+    ASSERT_NE(boxed_int.get("value"_hs).try_cast<int>(), nullptr);
+    ASSERT_EQ(boxed_int.get("value"_hs).cast<int>(), 4);
+
+    ASSERT_EQ(ud.any.type(), entt::resolve<int>());
+    ASSERT_EQ(ud.any.cast<int>(), 4);
+
+    // these objects have been initialized from a different context
+    boxed_int.emplace<void>();
+    empty.emplace<void>();
+    ud.any.emplace<void>();
+
+    cr_plugin_close(ctx);
+
+    ASSERT_FALSE(entt::resolve("boxed_int"_hs));
+    ASSERT_FALSE(entt::resolve("empty"_hs));
+}

external/entt/test/lib/meta/plugin_std/plugin.cpp

@@ -0,0 +1,49 @@
+#include <cr.h>
+#include <entt/core/hashed_string.hpp>
+#include <entt/locator/locator.hpp>
+#include <entt/meta/context.hpp>
+#include <entt/meta/factory.hpp>
+#include <entt/meta/meta.hpp>
+#include "../../../common/boxed_type.h"
+#include "../../../common/empty.h"
+#include "userdata.h"
+
+test::boxed_int create_boxed_int(int value) {
+    return test::boxed_int{value};
+}
+
+void set_up() {
+    using namespace entt::literals;
+
+    entt::meta_factory<test::boxed_int>{}
+        .type("boxed_int"_hs)
+        .ctor<&create_boxed_int>()
+        .data<&test::boxed_int::value>("value"_hs);
+
+    entt::meta_factory<test::empty>{}
+        .type("empty"_hs)
+        .ctor<>();
+}
+
+void tear_down() {
+    entt::meta_reset<test::boxed_int>();
+    entt::meta_reset<test::empty>();
+}
+
+CR_EXPORT int cr_main(cr_plugin *ctx, cr_op operation) {
+    switch(operation) {
+    case CR_LOAD:
+        entt::locator<entt::meta_ctx>::reset(static_cast<userdata *>(ctx->userdata)->ctx);
+        set_up();
+        break;
+    case CR_STEP:
+        static_cast<userdata *>(ctx->userdata)->any = 4;
+        break;
+    case CR_UNLOAD:
+    case CR_CLOSE:
+        tear_down();
+        break;
+    }
+
+    return 0;
+}

external/entt/test/lib/meta/plugin_std/userdata.h

@@ -0,0 +1,32 @@
+#ifndef ENTT_LIB_META_PLUGIN_STD_USERDATA_H
+#define ENTT_LIB_META_PLUGIN_STD_USERDATA_H
+
+#include <type_traits>
+#include <entt/core/hashed_string.hpp>
+#include <entt/core/type_info.hpp>
+#include <entt/meta/context.hpp>
+#include <entt/meta/meta.hpp>
+#include "../../../common/boxed_type.h"
+#include "../../../common/empty.h"
+
+#define ASSIGN_TYPE_ID(clazz) \
+    template<> \
+    struct entt::type_hash<clazz> { \
+        static constexpr entt::id_type value() noexcept { \
+            return entt::basic_hashed_string<std::remove_const_t<std::remove_pointer_t<std::decay_t<decltype(#clazz)>>>>{#clazz}; \
+        } \
+    }
+
+struct userdata {
+    entt::locator<entt::meta_ctx>::node_type ctx{};
+    entt::meta_any any{};
+};
+
+ASSIGN_TYPE_ID(void);
+ASSIGN_TYPE_ID(std::size_t);
+ASSIGN_TYPE_ID(test::boxed_int);
+ASSIGN_TYPE_ID(test::empty);
+ASSIGN_TYPE_ID(double);
+ASSIGN_TYPE_ID(int);
+
+#endif