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CommonPlatform.h
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225 lines (178 loc) · 6.39 KB
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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT license.
#pragma once
//-----------------------------------------------------------------------------
// standard library headers
//-----------------------------------------------------------------------------
#define _SILENCE_CXX17_CODECVT_HEADER_DEPRECATION_WARNING
#define _ITERATOR_DEBUG_LEVEL 0
#include <algorithm>
#include <array>
#include <cassert>
#include <cmath>
#include <codecvt>
#include <cstdint>
#include <functional>
#include <list>
#include <locale>
#include <memory>
#include <queue>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <vector>
//-----------------------------------------------------------------------------
// compiler support
//-----------------------------------------------------------------------------
#if defined(_MSC_VER)
#define MANAGED_METHOD(TYPE) TYPE __stdcall
#define NATIVE_ENTRY_POINT(TYPE) extern "C" __declspec(dllexport) TYPE __stdcall
#define DISABLE_WARNING(ID) __pragma(warning(disable:ID))
#define DEFAULT_WARNING(ID) __pragma(warning(default:ID))
#define NORETURN __declspec(noreturn)
#elif defined(__clang__)
#define MANAGED_METHOD(TYPE) TYPE __stdcall
#define NATIVE_ENTRY_POINT(TYPE) extern "C" __attribute__((visibility("default"))) TYPE __stdcall
#define DISABLE_WARNING(ID)
#define DEFAULT_WARNING(ID)
#define NORETURN __attribute__((noreturn))
#define _ASSERTE assert
#else
#error "ClearScript does not support this compiler"
#endif
//-----------------------------------------------------------------------------
// global macros
//-----------------------------------------------------------------------------
#define PROHIBIT_CONSTRUCT(CLASS) \
CLASS() = delete;
//-----------------------------------------------------------------------------
#define PROHIBIT_HEAP(CLASS) \
void* operator new(size_t size) = delete; \
void operator delete(void*, size_t) = delete;
//-----------------------------------------------------------------------------
#define PROHIBIT_COPY(CLASS) \
CLASS(const CLASS& that) = delete; \
const CLASS& operator=(const CLASS& that) = delete;
//-----------------------------------------------------------------------------
#define IGNORE_UNUSED(NAME) ((void)(NAME))
#ifdef _DEBUG
#define ASSERT_EVAL _ASSERTE
#define DEBUG_EVAL IGNORE_UNUSED
#else // !_DEBUG
#define ASSERT_EVAL IGNORE_UNUSED
#define DEBUG_EVAL _ASSERTE
#endif // !_DEBUG
//-----------------------------------------------------------------------------
#define BEGIN_COMPOUND_MACRO \
do \
{
#define END_COMPOUND_MACRO \
DISABLE_WARNING(4127) /* conditional expression is constant */ \
} \
while (false) \
DEFAULT_WARNING(4127)
//-----------------------------------------------------------------------------
// global helper functions
//-----------------------------------------------------------------------------
template <typename TFlag>
inline bool HasFlag(TFlag mask, TFlag flag)
{
using TUnderlying = std::underlying_type_t<TFlag>;
return (static_cast<TUnderlying>(mask) & static_cast<TUnderlying>(flag)) != 0;
}
//-----------------------------------------------------------------------------
template <typename TFlag>
inline TFlag CombineFlags(TFlag flag1, TFlag flag2)
{
using TUnderlying = std::underlying_type_t<TFlag>;
return static_cast<TFlag>(static_cast<TUnderlying>(flag1) | static_cast<TUnderlying>(flag2));
}
//-----------------------------------------------------------------------------
template <typename TFlag, typename... TOthers>
inline TFlag CombineFlags(TFlag flag1, TFlag flag2, TOthers... others)
{
return CombineFlags(flag1, CombineFlags(flag2, others...));
}
//-----------------------------------------------------------------------------
// StaticBase
//-----------------------------------------------------------------------------
struct StaticBase
{
PROHIBIT_CONSTRUCT(StaticBase)
};
//-----------------------------------------------------------------------------
// Disposer
//-----------------------------------------------------------------------------
template <typename T>
struct Disposer final
{
void operator()(T* pObject) const
{
if (pObject != nullptr)
{
pObject->Dispose();
}
}
};
//-----------------------------------------------------------------------------
template <typename T>
using UniqueDisposePtr = std::unique_ptr<T, Disposer<T>>;
//-----------------------------------------------------------------------------
// Deleter
//-----------------------------------------------------------------------------
template <typename T>
struct Deleter final
{
void operator()(T* pObject) const
{
if (pObject != nullptr)
{
pObject->Delete();
}
}
};
//-----------------------------------------------------------------------------
template <typename T>
using UniqueDeletePtr = std::unique_ptr<T, Deleter<T>>;
//-----------------------------------------------------------------------------
// PulseValueScope
//-----------------------------------------------------------------------------
template <typename T>
class PulseValueScope final
{
PROHIBIT_COPY(PulseValueScope)
PROHIBIT_HEAP(PulseValueScope)
public:
PulseValueScope(T* pValue, const T& value):
m_pValue(pValue),
m_OriginalValue(std::move(*pValue))
{
*m_pValue = value;
}
PulseValueScope(T* pValue, T&& value):
m_pValue(pValue),
m_OriginalValue(std::move(*pValue))
{
*m_pValue = std::move(value);
}
~PulseValueScope()
{
*m_pValue = std::move(m_OriginalValue);
}
private:
T* m_pValue;
T m_OriginalValue;
};
//-----------------------------------------------------------------------------
#define BEGIN_PULSE_VALUE_SCOPE(ADDRESS, VALUE) \
{ \
DISABLE_WARNING(4456) /* declaration hides previous local declaration */ \
PulseValueScope<std::remove_reference<decltype(*(ADDRESS))>::type> t_PulseValueScope((ADDRESS), (VALUE)); \
DEFAULT_WARNING(4456)
#define END_PULSE_VALUE_SCOPE \
IGNORE_UNUSED(t_PulseValueScope); \
}
//-----------------------------------------------------------------------------
// StdBool - a blittable Boolean type for use with P/Invoke
//-----------------------------------------------------------------------------
using StdBool = int8_t;