Cider Isn't Darwin Emulation, Really
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338// -*- C++ -*-//===-------------------------- exception ---------------------------------===////// The LLVM Compiler Infrastructure//// This file is dual licensed under the MIT and the University of Illinois Open// Source Licenses. See LICENSE.TXT for details.////===----------------------------------------------------------------------===//#ifndef _LIBCPP_EXCEPTION#define _LIBCPP_EXCEPTION/* exception synopsisnamespace std{class exception{public: exception() noexcept; exception(const exception&) noexcept; exception& operator=(const exception&) noexcept; virtual ~exception() noexcept; virtual const char* what() const noexcept;};class bad_exception : public exception{public: bad_exception() noexcept; bad_exception(const bad_exception&) noexcept; bad_exception& operator=(const bad_exception&) noexcept; virtual ~bad_exception() noexcept; virtual const char* what() const noexcept;};typedef void (*unexpected_handler)();unexpected_handler set_unexpected(unexpected_handler f ) noexcept;unexpected_handler get_unexpected() noexcept;[[noreturn]] void unexpected();typedef void (*terminate_handler)();terminate_handler set_terminate(terminate_handler f ) noexcept;terminate_handler get_terminate() noexcept;[[noreturn]] void terminate() noexcept;bool uncaught_exception() noexcept;int uncaught_exceptions() noexcept; // C++17typedef unspecified exception_ptr;exception_ptr current_exception() noexcept;void rethrow_exception [[noreturn]] (exception_ptr p);template<class E> exception_ptr make_exception_ptr(E e) noexcept;class nested_exception{public: nested_exception() noexcept; nested_exception(const nested_exception&) noexcept = default; nested_exception& operator=(const nested_exception&) noexcept = default; virtual ~nested_exception() = default; // access functions [[noreturn]] void rethrow_nested() const; exception_ptr nested_ptr() const noexcept;};template <class T> [[noreturn]] void throw_with_nested(T&& t);template <class E> void rethrow_if_nested(const E& e);} // std*/#include <__config>#include <cstddef>#include <cstdlib>#include <type_traits>#if defined(_LIBCPP_ABI_MICROSOFT)#include <vcruntime_exception.h>#endif#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)#pragma GCC system_header#endifnamespace std // purposefully not using versioning namespace{#if !defined(_LIBCPP_ABI_MICROSOFT)class _LIBCPP_EXCEPTION_ABI exception{public: _LIBCPP_INLINE_VISIBILITY exception() _NOEXCEPT {} virtual ~exception() _NOEXCEPT; virtual const char* what() const _NOEXCEPT;};class _LIBCPP_EXCEPTION_ABI bad_exception : public exception{public: _LIBCPP_INLINE_VISIBILITY bad_exception() _NOEXCEPT {} virtual ~bad_exception() _NOEXCEPT; virtual const char* what() const _NOEXCEPT;};#endif // !_LIBCPP_ABI_MICROSOFT#if _LIBCPP_STD_VER <= 14 \ || defined(_LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS) \ || defined(_LIBCPP_BUILDING_LIBRARY)typedef void (*unexpected_handler)();_LIBCPP_FUNC_VIS unexpected_handler set_unexpected(unexpected_handler) _NOEXCEPT;_LIBCPP_FUNC_VIS unexpected_handler get_unexpected() _NOEXCEPT;_LIBCPP_NORETURN _LIBCPP_FUNC_VIS void unexpected();#endiftypedef void (*terminate_handler)();_LIBCPP_FUNC_VIS terminate_handler set_terminate(terminate_handler) _NOEXCEPT;_LIBCPP_FUNC_VIS terminate_handler get_terminate() _NOEXCEPT;_LIBCPP_NORETURN _LIBCPP_FUNC_VIS void terminate() _NOEXCEPT;_LIBCPP_FUNC_VIS bool uncaught_exception() _NOEXCEPT;_LIBCPP_FUNC_VIS _LIBCPP_AVAILABILITY_UNCAUGHT_EXCEPTIONS int uncaught_exceptions() _NOEXCEPT;class _LIBCPP_TYPE_VIS exception_ptr;_LIBCPP_FUNC_VIS exception_ptr current_exception() _NOEXCEPT;_LIBCPP_NORETURN _LIBCPP_FUNC_VIS void rethrow_exception(exception_ptr);#ifndef _LIBCPP_ABI_MICROSOFTclass _LIBCPP_TYPE_VIS exception_ptr{ void* __ptr_;public: _LIBCPP_INLINE_VISIBILITY exception_ptr() _NOEXCEPT : __ptr_() {} _LIBCPP_INLINE_VISIBILITY exception_ptr(nullptr_t) _NOEXCEPT : __ptr_() {} exception_ptr(const exception_ptr&) _NOEXCEPT; exception_ptr& operator=(const exception_ptr&) _NOEXCEPT; ~exception_ptr() _NOEXCEPT; _LIBCPP_INLINE_VISIBILITY _LIBCPP_EXPLICIT operator bool() const _NOEXCEPT {return __ptr_ != nullptr;} friend _LIBCPP_INLINE_VISIBILITY bool operator==(const exception_ptr& __x, const exception_ptr& __y) _NOEXCEPT {return __x.__ptr_ == __y.__ptr_;} friend _LIBCPP_INLINE_VISIBILITY bool operator!=(const exception_ptr& __x, const exception_ptr& __y) _NOEXCEPT {return !(__x == __y);} friend _LIBCPP_FUNC_VIS exception_ptr current_exception() _NOEXCEPT; friend _LIBCPP_FUNC_VIS void rethrow_exception(exception_ptr);};template<class _Ep>exception_ptrmake_exception_ptr(_Ep __e) _NOEXCEPT{#ifndef _LIBCPP_NO_EXCEPTIONS try { throw __e; } catch (...) { return current_exception(); }#else ((void)__e); _VSTD::abort();#endif}#else // _LIBCPP_ABI_MICROSOFTclass _LIBCPP_TYPE_VIS exception_ptr{#if defined(__clang__)#pragma clang diagnostic push#pragma clang diagnostic ignored "-Wunused-private-field"#endif void* __ptr1_; void* __ptr2_;#if defined(__clang__)#pragma clang diagnostic pop#endifpublic: exception_ptr() _NOEXCEPT; exception_ptr(nullptr_t) _NOEXCEPT; exception_ptr(const exception_ptr& __other) _NOEXCEPT; exception_ptr& operator=(const exception_ptr& __other) _NOEXCEPT; exception_ptr& operator=(nullptr_t) _NOEXCEPT; ~exception_ptr() _NOEXCEPT; _LIBCPP_EXPLICIT operator bool() const _NOEXCEPT;};_LIBCPP_FUNC_VISbool operator==(const exception_ptr& __x, const exception_ptr& __y) _NOEXCEPT;inline _LIBCPP_INLINE_VISIBILITYbool operator!=(const exception_ptr& __x, const exception_ptr& __y) _NOEXCEPT {return !(__x == __y);}_LIBCPP_FUNC_VIS void swap(exception_ptr&, exception_ptr&) _NOEXCEPT;_LIBCPP_FUNC_VIS exception_ptr __copy_exception_ptr(void *__except, const void* __ptr);_LIBCPP_FUNC_VIS exception_ptr current_exception() _NOEXCEPT;_LIBCPP_NORETURN _LIBCPP_FUNC_VIS void rethrow_exception(exception_ptr p);// This is a built-in template function which automagically extracts the required// information.template <class _E> void *__GetExceptionInfo(_E);template<class _Ep>exception_ptrmake_exception_ptr(_Ep __e) _NOEXCEPT{ return __copy_exception_ptr(_VSTD::addressof(__e), __GetExceptionInfo(__e));}#endif // _LIBCPP_ABI_MICROSOFT// nested_exceptionclass _LIBCPP_EXCEPTION_ABI nested_exception{ exception_ptr __ptr_;public: nested_exception() _NOEXCEPT;// nested_exception(const nested_exception&) noexcept = default;// nested_exception& operator=(const nested_exception&) noexcept = default; virtual ~nested_exception() _NOEXCEPT; // access functions _LIBCPP_NORETURN void rethrow_nested() const; _LIBCPP_INLINE_VISIBILITY exception_ptr nested_ptr() const _NOEXCEPT {return __ptr_;}};template <class _Tp>struct __nested : public _Tp, public nested_exception{ _LIBCPP_INLINE_VISIBILITY explicit __nested(const _Tp& __t) : _Tp(__t) {}};#ifndef _LIBCPP_NO_EXCEPTIONStemplate <class _Tp, class _Up, bool>struct __throw_with_nested;template <class _Tp, class _Up>struct __throw_with_nested<_Tp, _Up, true> { _LIBCPP_NORETURN static inline _LIBCPP_ALWAYS_INLINE void#ifndef _LIBCPP_CXX03_LANG __do_throw(_Tp&& __t)#else __do_throw (_Tp& __t)#endif // _LIBCPP_CXX03_LANG { throw __nested<_Up>(_VSTD::forward<_Tp>(__t)); }};template <class _Tp, class _Up>struct __throw_with_nested<_Tp, _Up, false> { _LIBCPP_NORETURN static inline _LIBCPP_ALWAYS_INLINE void#ifndef _LIBCPP_CXX03_LANG __do_throw(_Tp&& __t)#else __do_throw (_Tp& __t)#endif // _LIBCPP_CXX03_LANG { throw _VSTD::forward<_Tp>(__t); }};#endiftemplate <class _Tp>_LIBCPP_NORETURNvoid#ifndef _LIBCPP_CXX03_LANGthrow_with_nested(_Tp&& __t)#elsethrow_with_nested (_Tp& __t)#endif // _LIBCPP_CXX03_LANG{#ifndef _LIBCPP_NO_EXCEPTIONS typedef typename decay<_Tp>::type _Up; static_assert( is_copy_constructible<_Up>::value, "type thrown must be CopyConstructible"); __throw_with_nested<_Tp, _Up, is_class<_Up>::value && !is_base_of<nested_exception, _Up>::value && !__libcpp_is_final<_Up>::value>:: __do_throw(_VSTD::forward<_Tp>(__t));#else ((void)__t); // FIXME: Make this abort#endif}template <class _From, class _To>struct __can_dynamic_cast : public _LIBCPP_BOOL_CONSTANT( is_polymorphic<_From>::value && (!is_base_of<_To, _From>::value || is_convertible<const _From*, const _To*>::value)) {};template <class _Ep>inline _LIBCPP_INLINE_VISIBILITYvoidrethrow_if_nested(const _Ep& __e, typename enable_if< __can_dynamic_cast<_Ep, nested_exception>::value>::type* = 0){ const nested_exception* __nep = dynamic_cast<const nested_exception*>(_VSTD::addressof(__e)); if (__nep) __nep->rethrow_nested();}template <class _Ep>inline _LIBCPP_INLINE_VISIBILITYvoidrethrow_if_nested(const _Ep&, typename enable_if<!__can_dynamic_cast<_Ep, nested_exception>::value>::type* = 0){}} // std#endif // _LIBCPP_EXCEPTION