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#pragma once
#include "napi.h"
namespace Napi {
// Needs this here since the MaybeUnwrap() functions need to be in the
// same namespace as their arguments for C++ argument-dependent lookup
#ifdef NAPI_CPP_CUSTOM_NAMESPACE
namespace NAPI_CPP_CUSTOM_NAMESPACE {
#endif
// Use this when a variable or parameter is unused in order to explicitly
// silence a compiler warning about that.
template <typename T>
inline void USE(T&&) {}
/**
* A test helper that converts MaybeOrValue<T> to T by checking that
* MaybeOrValue is NOT an empty Maybe when NODE_ADDON_API_ENABLE_MAYBE is
* defined.
*
* Do nothing when NODE_ADDON_API_ENABLE_MAYBE is not defined.
*/
template <typename T>
inline T MaybeUnwrap(MaybeOrValue<T> maybe) {
#if defined(NODE_ADDON_API_ENABLE_MAYBE)
return maybe.Unwrap();
#else
return maybe;
#endif
}
/**
* A test helper that converts MaybeOrValue<T> to T by getting the value that
* wrapped by the Maybe or return the default_value if the Maybe is empty when
* NODE_ADDON_API_ENABLE_MAYBE is defined.
*
* Do nothing when NODE_ADDON_API_ENABLE_MAYBE is not defined.
*/
template <typename T>
inline T MaybeUnwrapOr(MaybeOrValue<T> maybe, const T& default_value) {
#if defined(NODE_ADDON_API_ENABLE_MAYBE)
return maybe.UnwrapOr(default_value);
#else
USE(default_value);
return maybe;
#endif
}
/**
* A test helper that converts MaybeOrValue<T> to T by getting the value that
* wrapped by the Maybe or return false if the Maybe is empty when
* NODE_ADDON_API_ENABLE_MAYBE is defined.
*
* Copying the value to out when NODE_ADDON_API_ENABLE_MAYBE is not defined.
*/
template <typename T>
inline bool MaybeUnwrapTo(MaybeOrValue<T> maybe, T* out) {
#if defined(NODE_ADDON_API_ENABLE_MAYBE)
return maybe.UnwrapTo(out);
#else
*out = maybe;
return true;
#endif
}
#ifdef NAPI_CPP_CUSTOM_NAMESPACE
} // namespace NAPI_CPP_CUSTOM_NAMESPACE
#endif
} // namespace Napi
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