chromium/third_party/dawn/src/dawn/tests/unittests/ToBackendTests.cpp

// Copyright 2017 The Dawn & Tint Authors
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#include <type_traits>

#include "gtest/gtest.h"

#include "dawn/common/Ref.h"
#include "dawn/common/RefCounted.h"
#include "dawn/native/ToBackend.h"

// Make our own Base - Backend object pair, reusing the MyObjectBase name
namespace dawn::native {

class MyObjectBase : public RefCounted { … };

class MyObject : public MyObjectBase { … };

struct MyBackendTraits { … };

ToBackendTraits<MyObjectBase, BackendTraits>;

// Instantiate ToBackend for our "backend"
template <typename T>
auto ToBackend(T&& common) -> decltype(ToBackendBase<MyBackendTraits>(common)) { … }

// Test that ToBackend correctly converts pointers to base classes.
TEST(ToBackend, Pointers) { … }

// Test that ToBackend correctly converts Refs to base classes.
TEST(ToBackend, Ref) { … }
}  // namespace dawn::native