new basic version

untests/examples/method_example.cpp

@@ -0,0 +1,48 @@
+/*******************************************************************************
+ * This file is part of the "https://github.com/blackmatov/meta.hpp"
+ * For conditions of distribution and use, see copyright notice in LICENSE.md
+ * Copyright (C) 2021, by Matvey Cherevko (blackmatov@gmail.com)
+ ******************************************************************************/
+
+#include "../meta_tests.hpp"
+
+namespace
+{
+    struct ivec2 final {
+        int x{};
+        int y{};
+
+        int dot(const ivec2& other) const noexcept {
+            return x * other.x + y * other.y;
+        }
+
+        int length2() const noexcept {
+            return dot(*this);
+        }
+    };
+}
+
+TEST_CASE("meta/examples/method") {
+    namespace meta = meta_hpp;
+
+    meta::class_<ivec2>()
+        .member_("x", &ivec2::x)
+        .member_("y", &ivec2::y)
+        .method_("dot", &ivec2::dot)
+        .method_("length2", &ivec2::length2);
+
+    const meta::class_type ivec2_type = meta::resolve_type<ivec2>();
+    REQUIRE(ivec2_type);
+
+    CHECK(ivec2_type.get_methods().size() == 2);
+
+    const meta::method ivec2_dot = ivec2_type.get_method("dot");
+    REQUIRE(ivec2_dot);
+
+    CHECK(ivec2_dot.get_index().name == "dot");
+    CHECK(ivec2_dot.get_type() == meta::resolve_type<decltype(&ivec2::dot)>());
+
+    CHECK(ivec2_dot.get_type().get_arity() == 1);
+    CHECK(ivec2_dot.get_type().get_return_type() == meta::resolve_type<int>());
+    CHECK(ivec2_dot.get_type().get_argument_type(0) == meta::resolve_type<const ivec2&>());
+}