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#ifndef SLANG_CORE_COMMON_H
#define SLANG_CORE_COMMON_H
#include "../../slang.h"
#include <assert.h>
#include <stdint.h>
#include "slang-signal.h"
#define VARIADIC_TEMPLATE
namespace Slang
{
typedef int32_t Int32;
typedef uint32_t UInt32;
typedef int64_t Int64;
typedef uint64_t UInt64;
// Define
typedef SlangUInt UInt;
typedef SlangInt Int;
static const UInt kMaxUInt = ~UInt(0);
static const Int kMaxInt = Int(kMaxUInt >> 1);
// typedef unsigned short Word;
typedef intptr_t PtrInt;
// TODO(JS): It looks like Index is actually 64 bit on 64 bit targets(!)
// Previous discussions landed on Index being int32_t.
// Type used for indexing, in arrays/views etc. Signed.
typedef Int Index;
typedef UInt UIndex;
typedef Int Count;
typedef UInt UCount;
static const Index kMaxIndex = kMaxInt;
typedef uint8_t Byte;
// TODO(JS):
// Perhaps these should be named Utf8, Utf16 and UnicodePoint/Rune/etc? For now, just keep it simple
//
typedef char Char8;
// 16 bit character. Note much like in utf8, a character may or may not represent a code point (it can be part of a code point).
typedef uint16_t Char16;
// Can always hold a unicode code point.
typedef uint32_t Char32;
template <typename T>
inline T&& _Move(T & obj)
{
return static_cast<T&&>(obj);
}
template <typename T>
inline void Swap(T & v0, T & v1)
{
T tmp = _Move(v0);
v0 = _Move(v1);
v1 = _Move(tmp);
}
// Make these interfaces have more convenient names
typedef ISlangCastable ICastable;
typedef ISlangClonable IClonable;
// Convenience function for using clonable
template <typename T>
SLANG_FORCE_INLINE T* clone(IClonable* clonable) { return (T*)clonable->clone(T::getTypeGuid()); }
template <typename T>
inline bool isBitSet(T value, T bitToTest)
{
static_assert(sizeof(T) <= sizeof(uint32_t), "Only support up to 32 bit enums");
return (T)((uint32_t)value & (uint32_t)bitToTest) == bitToTest;
}
}
// SLANG_DEFER
template<typename F>
class SlangDeferImpl
{
F f;
public:
SlangDeferImpl(F&& f)
: f(Slang::_Move(f))
{}
~SlangDeferImpl()
{
f();
}
};
#ifndef SLANG_DEFER_LAMBDA
#define SLANG_DEFER_LAMBDA(x) auto SLANG_CONCAT(slang_defer_, __LINE__) = SlangDeferImpl(x)
#define SLANG_DEFER(x) auto SLANG_CONCAT(slang_defer_,__LINE__) = SlangDeferImpl([&](){x;})
#endif
//
// Some macros for avoiding boilerplate
// TODO: could probably deduce the size with templates, and move the whole
// thing into a template
//
#if __cplusplus >= 202002L
#define SLANG_COMPONENTWISE_EQUALITY_1(type) bool operator==(const type& other) const = default;
#define SLANG_COMPONENTWISE_EQUALITY_2(type) bool operator==(const type& other) const = default;
#define SLANG_COMPONENTWISE_EQUALITY_3(type) bool operator==(const type& other) const = default;
#else
#define SLANG_COMPONENTWISE_EQUALITY_1(type) \
bool operator==(const type& other) const \
{ \
const auto& [m1] = *this; \
const auto& [o1] = other; \
return m1 == o1; \
} \
bool operator!=(const type& other) const \
{ \
return !(*this == other); \
}
#define SLANG_COMPONENTWISE_EQUALITY_2(type) \
bool operator==(const type& other) const \
{ \
const auto& [m1, m2] = *this; \
const auto& [o1, o2] = other; \
return m1 == o1 && m2 == o2; \
} \
bool operator!=(const type& other) const \
{ \
return !(*this == other); \
}
#define SLANG_COMPONENTWISE_EQUALITY_3(type) \
bool operator==(const type& other) const \
{ \
const auto& [m1, m2, m3] = *this; \
const auto& [o1, o2, o3] = other; \
return m1 == o1 && m2 == o2 && m3 == o3; \
} \
bool operator!=(const type& other) const \
{ \
return !(*this == other); \
}
#endif
// TODO: Shouldn't these be SLANG_ prefixed?
#ifdef _MSC_VER
#define UNREACHABLE_RETURN(x)
#else
#define UNREACHABLE_RETURN(x) return x;
#endif
//
// Use `SLANG_ASSUME(myBoolExpression);` to inform the compiler that the condition is true.
// Do not rely on side effects of the condition being performed.
//
#if defined(__cpp_assume)
# define SLANG_ASSUME(X) [[assume(X)]]
#elif SLANG_GCC
# define SLANG_ASSUME(X) do{if(!(X)) __builtin_unreachable();} while(0)
#elif SLANG_CLANG
# define SLANG_ASSUME(X) __builtin_assume(X)
#elif SLANG_VC
# define SLANG_ASSUME(X) __assume(X)
#else
[[noreturn]] inline void invokeUndefinedBehaviour() {}
# define SLANG_ASSUME(X) do{if(!(X)) invokeUndefinedBehaviour();} while(0)
#endif
//
// Assertions abort in debug builds, but inform the compiler of true
// assumptions in release builds
//
#ifdef _DEBUG
#define SLANG_ASSERT(VALUE) do{if(!(VALUE)) SLANG_ASSERT_FAILURE(#VALUE);} while(0)
#else
#define SLANG_ASSERT(VALUE) SLANG_ASSUME(VALUE)
#endif
#define SLANG_RELEASE_ASSERT(VALUE) if(VALUE) {} else SLANG_ASSERT_FAILURE(#VALUE)
template<typename T> void slang_use_obj(T&) {}
#define SLANG_UNREFERENCED_PARAMETER(P) slang_use_obj(P)
#define SLANG_UNREFERENCED_VARIABLE(P) slang_use_obj(P)
#endif
#if defined(SLANG_RT_DYNAMIC)
#if defined(_MSC_VER)
# ifdef SLANG_RT_DYNAMIC_EXPORT
# define SLANG_RT_API SLANG_DLL_EXPORT
# else
# define SLANG_RT_API __declspec(dllimport)
# endif
#else
// TODO: need to consider compiler capabilities
//# ifdef SLANG_RT_DYNAMIC_EXPORT
# define SLANG_RT_API SLANG_DLL_EXPORT
//# endif
#endif
#endif
#if defined(_MSC_VER)
# define SLANG_ATTR_PRINTF(string_index, varargs_index)
#else
# define SLANG_ATTR_PRINTF(string_index, varargs_index) __attribute__((format(printf, string_index, varargs_index)))
#endif
#ifndef SLANG_RT_API
#define SLANG_RT_API
#endif
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