ReferenceCounter.h
1.32 KB
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#pragma once
#include <utility>
#include <hstring.h>
#include <Unknwn.h>
namespace il2cpp
{
namespace winrt
{
template<typename T, bool isIUnknown = std::is_base_of<IUnknown, std::remove_pointer<T>::type>::value>
struct ReferenceCounter;
template<typename T>
struct ReferenceCounter<T, false>
{
static inline void AddRef(T& value)
{
}
static inline void Release(T& value)
{
}
};
template<typename T>
struct ReferenceCounter<T, true>
{
static inline void AddRef(T& value)
{
if (value == nullptr)
return;
value->AddRef();
}
static inline void Release(T& value)
{
if (value == nullptr)
return;
value->Release();
}
};
template<>
struct ReferenceCounter<HSTRING, false>
{
static inline void AddRef(HSTRING& value)
{
if (value == nullptr)
return;
auto hr = WindowsDuplicateString(value, &value);
Assert(SUCCEEDED(hr));
}
static inline void Release(HSTRING& value)
{
if (value == nullptr)
return;
auto hr = WindowsDeleteString(value);
Assert(SUCCEEDED(hr));
}
};
}
}