...

1 files changed, 41 insertions, 0 deletions

diff --git a/include/cru/platform/check.hpp b/include/cru/platform/check.hpp
new file mode 100644
index 00000000..8e60e848
--- /dev/null
+++ b/include/cru/platform/check.hpp
@@ -0,0 +1,41 @@
+#pragma once
+#include "cru/common/format.hpp"
+#include "exception.hpp"
+#include "resource.hpp"
+
+#include <cassert>
+#include <memory>
+#include <type_traits>
+
+namespace cru::platform {
+template <typename TTarget>
+TTarget* CheckPlatform(INativeResource* resource,
+                       const std::string_view& target_platform) {
+  assert(resource);
+  const auto result = dynamic_cast<TTarget*>(resource);
+  if (result == nullptr) {
+    throw UnsupportPlatformException(util::Format(
+        "Try to convert resource to target platform failed. Platform id of "
+        "resource to convert: {} . Target platform id: {} .",
+        resource->GetPlatformId(), target_platform));
+  }
+  return result;
+}
+
+template <typename TTarget, typename TSource>
+std::shared_ptr<TTarget> CheckPlatform(
+    const std::shared_ptr<TSource>& resource,
+    const std::string_view& target_platform) {
+  static_assert(std::is_base_of_v<INativeResource, TSource>,
+                "TSource must be a subclass of INativeResource.");
+  assert(resource);
+  const auto result = std::dynamic_pointer_cast<TTarget>(resource);
+  if (result == nullptr) {
+    throw UnsupportPlatformException(util::Format(
+        "Try to convert resource to target platform failed. Platform id of "
+        "resource to convert: {} . Target platform id: {} .",
+        resource->GetPlatformId(), target_platform));
+  }
+  return result;
+}
+}  // namespace cru::platform