summaryrefslogtreecommitdiffstatshomepage
path: root/src/lib/netlist/plib/ppmf.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/lib/netlist/plib/ppmf.h')
-rw-r--r--src/lib/netlist/plib/ppmf.h734
1 files changed, 411 insertions, 323 deletions
diff --git a/src/lib/netlist/plib/ppmf.h b/src/lib/netlist/plib/ppmf.h
index 4c175fe8b10..56f40bde922 100644
--- a/src/lib/netlist/plib/ppmf.h
+++ b/src/lib/netlist/plib/ppmf.h
@@ -8,7 +8,7 @@
/// \file ppmf.h
///
///
-/// PMF_TYPE_GNUC_PMF
+/// PMF_TYPE_PMF
/// Use standard pointer to member function syntax C++11
///
/// PMF_TYPE_GNUC_PMF_CONV
@@ -16,365 +16,378 @@
/// This is not standard compliant and needs
/// -Wno-pmf-conversions to compile.
///
-/// PMF_TYPE_INTERNAL
+/// PMF_TYPE_INTERNAL_*
/// Use the same approach as MAME for deriving the function pointer.
/// This is compiler-dependent as well
///
-/// Benchmarks for ./nltool -c run -f src/mame/machine/nl_pong.cpp -t 10 -n pong_fast
+/// Benchmarks for `./nltool -c run -t 10 -n pong src/mame/machine/nl_pong.cpp`
///
-/// PMF_TYPE_INTERNAL: 215% 215%
-/// PMF_TYPE_GNUC_PMF: 163% 196%
-/// PMF_TYPE_GNUC_PMF_CONV: 215% 215%
+/// PMF_TYPE_INTERNAL: 215% 215% 564% 580%
+/// PMF_TYPE_GNUC_PMF: 163% 196% 516% 490%
+/// PMF_TYPE_GNUC_PMF_CONV: 215% 215% 560% 575%
///
-/// The whole exercise was done to avoid virtual calls. In prior versions of
-/// netlist, the INTERNAL and GNUC_PMF_CONV approach provided significant improvement.
-/// Since than, "hot" was removed from functions declared as virtual.
-/// This may explain that the recent benchmarks show no difference at all.
///
+/// \brief Enable experimental code on Visual Studio builds and VS clang llvm builds
+///
+/// This enables experimental code which uses optimized builds the
+/// ppmf_type::INTERNAL_MSC path also for complex (struct/union) return types.
+/// This currently depends on whether the code can adequately determine on
+/// x64 builds if the return type is returned through registers or passed as a
+/// second argument as a pointer to the member function.
+///
+/// The experimental code uses a temporary storage for the return value. This a
+/// copy overhead for causes for large sized return types a copy overhead.
+/// It would be easier if we would be able to obtain the RDX register on entry
+/// to the call. On MSVC this seems not to be possible since on x64 inline
+/// assembly is not supported. Even with clang-cl inline assembly this was not
+/// successful when optimized code was compiled. Therefore we have to live with
+/// the limitations.
+///
+/// This code path is disabled by default currently.
+///
+#if !defined(PPMF_EXPERIMENTAL)
+#define PPMF_EXPERIMENTAL 0
+#endif
+
+/// brief Enable using MAME delegates as a replacement for ppmf.
+///
+/// This define enables the use of MAME delegates (src/lib/util/delegate.h
+/// as a replacement to ppmf. Enable this setting if you want to use the nltool
+/// test suite (nltool -c tests) to produce comparisons to ppmf.
+///
+#if !defined(PPMF_USE_MAME_DELEGATES)
+#define PPMF_USE_MAME_DELEGATES 0
+#endif
+
+#if PPMF_USE_MAME_DELEGATES
+
+#include "../../util/delegate.h"
+
+namespace plib {
+ template<typename Signature>
+ class pmfp : public delegate<Signature>
+ {
+ public:
+ using basetype = delegate<Signature>;
+ using basetype::basetype;
+ using basetype::object;
+ explicit operator bool() const { return !this->isnull(); }
+ };
+}
+#else
+
#include "pconfig.h"
#include "ptypes.h"
#include <algorithm>
+#include <cstddef> // ptrdiff_t
#include <cstdint> // uintptr_t
+#include <type_traits>
#include <utility>
//============================================================
// Macro magic
//============================================================
-//#define PPMF_TYPE 2
-
-#define PPMF_TYPE_PMF 0
-#define PPMF_TYPE_GNUC_PMF_CONV 1
-#define PPMF_TYPE_INTERNAL 2
-
-// FIXME: Remove this macro madmess latest after September, 2020
-// FIXME: Do we still need to support MINGW <= 4.6?
-
-#if defined(__clang__) && defined(__i386__) && defined(_WIN32)
- #define PHAS_PMF_INTERNAL 0
-#elif defined(__GNUC__) || defined(__clang__)
- // does not work in versions over 4.7.x of 32bit MINGW
- #if defined(__MINGW32__) && !defined(__x86_64) && defined(__i386__) && ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)))
- #define PHAS_PMF_INTERNAL 0
- #elif defined(__MINGW32__) && !defined(__x86_64) && defined(__i386__)
- #define PHAS_PMF_INTERNAL 1
- #define MEMBER_ABI _thiscall
- #elif defined(__arm__) || defined(__ARMEL__) || defined(__aarch64__) || defined(__MIPSEL__) || defined(__mips_isa_rev) || defined(__mips64) || defined(__EMSCRIPTEN__)
- #define PHAS_PMF_INTERNAL 2
- #else
- #define PHAS_PMF_INTERNAL 1
- #endif
-#elif defined(_MSC_VER) && defined (_M_X64)
- #define PHAS_PMF_INTERNAL 3
-#else
- #define PHAS_PMF_INTERNAL 0
-#endif
+//#define PPMF_FORCE_TYPE 1
-#ifndef MEMBER_ABI
- #define MEMBER_ABI
+#ifndef PPMF_FORCE_TYPE
+#define PPMF_FORCE_TYPE -1
#endif
-#ifndef PPMF_TYPE
- #if (PHAS_PMF_INTERNAL > 0)
- #define PPMF_TYPE PPMF_TYPE_INTERNAL
- #else
- #define PPMF_TYPE PPMF_TYPE_PMF
- #endif
-#else
- #if (PPMF_TYPE == PPMF_TYPE_INTERNAL)
- #if (PHAS_PMF_INTERNAL == 0)
- #error "Internal type not supported"
- #endif
- #else
- #undef PHAS_PMF_INTERNAL
- #define PHAS_PMF_INTERNAL 0
- #undef MEMBER_ABI
- #define MEMBER_ABI
- #endif
-#endif
+namespace plib {
-#if defined(__GNUC__) && !defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wpmf-conversions"
-#endif
+ enum class ppmf_type
+ {
+ PMF,
+ GNUC_PMF_CONV,
+ INTERNAL_ITANIUM,
+ INTERNAL_ARM,
+ INTERNAL_MSC
+ };
-namespace plib {
- struct ppmf_internal
+ struct ppmf_internal_selector
{
using ci = compile_info;
- enum { value =
+ constexpr static ppmf_type value =
+ (PPMF_FORCE_TYPE >= 0) ? static_cast<ppmf_type>(PPMF_FORCE_TYPE) :
(ci::type() == ci_compiler::CLANG && !ci::m64()
- && ci::os() == ci_os::WINDOWS) ? 0 :
- (ci::mingw() && !ci::m64() && ci::version() >= 407) ? 0 :
- (ci::mingw() && !ci::m64()) ? 1 :
+ && ci::os() == ci_os::WINDOWS) ? ppmf_type::PMF :
+ (ci::mingw() && !ci::m64() && ci::version::full() >= typed_version<4,7>::full()) ? ppmf_type::PMF :
+ (ci::mingw() && !ci::m64()) ? ppmf_type::PMF : // Dropped support for mingw32 < 407 ppmf_type::INTERNAL_ITANIUM :
+ (ci::env() == ci_env::MSVC && ci::m64()) ? ppmf_type::INTERNAL_MSC :
((ci::type() == ci_compiler::CLANG || ci::type() == ci_compiler::GCC)
&& (ci::arch() == ci_arch::MIPS
|| ci::arch() == ci_arch::ARM
- || ci::os() == ci_os::EMSCRIPTEN)) ? 2 :
- (ci::type() == ci_compiler::CLANG || ci::type() == ci_compiler::GCC) ? 1 :
- (ci::type() == ci_compiler::MSC && ci::m64()) ? 3 :
- 0
- };
+ || ci::os() == ci_os::EMSCRIPTEN)) ? ppmf_type::INTERNAL_ARM :
+ (ci::type() == ci_compiler::CLANG || ci::type() == ci_compiler::GCC) ? ppmf_type::INTERNAL_ITANIUM :
+ ppmf_type::PMF
+ ;
};
- // FIXME: on supported platforms we should consider using GNU PMF extensions
- // if no internal solution exists
+ static_assert(!(compile_info::type() == ci_compiler::CLANG && ppmf_internal_selector::value == (ppmf_type::GNUC_PMF_CONV)), "clang does not support ppmf_type::GNUC_PMF_CONV");
+ static_assert(!(compile_info::env() == ci_env::NVCC && ppmf_internal_selector::value == (ppmf_type::GNUC_PMF_CONV)), "nvcc does not support ppmf_type::GNUC_PMF_CONV");
+
+ template<typename R, typename... Targs>
+ struct mfp_traits
+ {
+ template<typename C> using specific_member_function = R (C::*)(Targs...);
+ template<typename C> using const_specific_member_function = R (C::*)(Targs...) const;
+ template<typename C> using member_static_ref = R (*)(C &, Targs...);
+ template<typename C> using member_static_ptr = R (*)(C *, Targs...);
+ };
- using ppmf_type = std::integral_constant<int, (ppmf_internal::value > 0 ? PPMF_TYPE_INTERNAL : PPMF_TYPE_PMF)>;
+ class mfp_generic_class;
- // check against previous implementation
- static_assert(ppmf_internal::value == PHAS_PMF_INTERNAL, "internal mismatch");
- static_assert(ppmf_type::value == PPMF_TYPE, "type mismatch");
///
/// \brief Used to derive a pointer to a member function.
///
/// The following class was derived from the MAME delegate.h code.
///
- template <int PMFINTERNAL>
- class mfp_raw
+ template <ppmf_type PMFINTERNAL>
+ class mfp_raw;
+
+ template <>
+ class mfp_raw<ppmf_type::INTERNAL_ITANIUM>
{
public:
// construct from any member function pointer
- class generic_class;
using generic_function = void (*)();
template<typename MemberFunctionType>
- mfp_raw(MemberFunctionType mftp)
- : m_function(0), m_this_delta(0), m_dummy1(0), m_dummy2(0), m_size(sizeof(mfp_raw))
- {
- static_assert(sizeof(*this) >= sizeof(MemberFunctionType), "size mismatch");
- *reinterpret_cast<MemberFunctionType *>(this) = mftp; // NOLINT
- // NOLINTNEXTLINE(clang-analyzer-optin.cplusplus.UninitializedObject)
- }
+ mfp_raw(MemberFunctionType mftp);
- //private:
// extract the generic function and adjust the object pointer
- void convert_to_generic(generic_function &func, generic_class *&object) const
- {
- if (PMFINTERNAL == 1)
- {
- // apply the "this" delta to the object first
- // NOLINTNEXTLINE(clang-analyzer-core.UndefinedBinaryOperatorResult,cppcoreguidelines-pro-type-reinterpret-cast)
- generic_class *o_p_delta = reinterpret_cast<generic_class *>(reinterpret_cast<std::uint8_t *>(object) + m_this_delta);
-
- // if the low bit of the vtable index is clear, then it is just a raw function pointer
- if ((m_function & 1) == 0)
- {
- // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
- func = reinterpret_cast<generic_function>(m_function);
- }
- else
- {
- // otherwise, it is the byte index into the vtable where the actual function lives
- // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
- std::uint8_t *vtable_base = *reinterpret_cast<std::uint8_t **>(o_p_delta);
- // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
- func = *reinterpret_cast<generic_function *>(vtable_base + m_function - 1);
- }
- object = o_p_delta;
- }
- else if (PMFINTERNAL == 2)
- {
- if ((m_this_delta & 1) == 0)
- {
- // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
- object = reinterpret_cast<generic_class *>(reinterpret_cast<std::uint8_t *>(object) + m_this_delta);
- // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
- func = reinterpret_cast<generic_function>(m_function);
- }
- else
- {
- // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
- object = reinterpret_cast<generic_class *>(reinterpret_cast<std::uint8_t *>(object));
-
- // otherwise, it is the byte index into the vtable where the actual function lives
- // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
- std::uint8_t *vtable_base = *reinterpret_cast<std::uint8_t **>(object);
- // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
- func = *reinterpret_cast<generic_function *>(vtable_base + m_function + m_this_delta - 1);
- }
- }
- else if (PMFINTERNAL == 3)
- {
- const int SINGLE_MEMFUNCPTR_SIZE = sizeof(void (generic_class::*)());
+ void convert_to_generic(generic_function &func, mfp_generic_class *&object) const;
+
+ /// \brief Byte offset into the vtable
+ ///
+ /// On x86-64, the vtable contains pointers to code, and function pointers
+ /// are pointers to code. To obtain a function pointer for a virtual
+ /// member function, you fetch a pointer to code from the vtable.
+ ///
+ /// On traditional PPC64, the vtable contains pointers to function
+ /// descriptors, and function pointers are pointers to function descriptors.
+ /// To obtain a function pointer for a virtual member function, you
+ /// fetch a pointer to a function descriptor from the vtable.
+ ///
+ /// On IA64, the vtable contains function descriptors, and function
+ /// pointers are pointers to function descriptors. To obtain a
+ /// function pointer for a virtual member function, you calculate
+ /// the address of the function descriptor in the vtable.
+ ///
+ /// Simply adding the byte offset to the vtable pointer creates a
+ /// function pointer on IA64 because the vtable contains function
+ /// descriptors; on most other targets, the vtable contains function
+ /// pointers, so you need to fetch the function pointer after
+ /// calculating its address in the vtable.
+ ///
+ uintptr_t m_function; // first item can be one of two things:
+ // if even, it's a function pointer
+ // if odd, it's the byte offset into the vtable
+ ptrdiff_t m_this_delta; // delta to apply to the 'this' pointer
+ };
- // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
- func = reinterpret_cast<generic_function>(m_function);
- if (m_size == SINGLE_MEMFUNCPTR_SIZE + sizeof(int))
- // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
- object = reinterpret_cast<generic_class *>(reinterpret_cast<std::uint8_t *>(object) + m_this_delta);
- }
- }
+ template <>
+ class mfp_raw<ppmf_type::INTERNAL_ARM>
+ {
+ public:
+ // construct from any member function pointer
+ using generic_function = void (*)();
+
+ template<typename MemberFunctionType>
+ mfp_raw(MemberFunctionType mftp);
+
+ // extract the generic function and adjust the object pointer
+ void convert_to_generic(generic_function &func, mfp_generic_class *&object) const;
// actual state
- uintptr_t m_function; // first item can be one of two things:
- // if even, it's a pointer to the function
- // if odd, it's the byte offset into the vtable
- int m_this_delta; // delta to apply to the 'this' pointer
-
- int m_dummy1; // only used for visual studio x64
- int m_dummy2;
- int m_size;
+ uintptr_t m_function; // first item can be a function pointer or a byte offset into the vtable
+ ptrdiff_t m_this_delta; // delta to apply to the 'this' pointer after right shifting by one bit
+ // if even, m_function is a fuction pointer
+ // if odd, m_function is the byte offset into the vtable
};
- template<int PMFTYPE, int PMFINTERNAL, typename R, typename... Targs>
+ template <>
+ class mfp_raw<ppmf_type::INTERNAL_MSC>
+ {
+ public:
+ // construct from any member function pointer
+ using generic_function = void (*)();
+ struct unknown_base_equiv { generic_function fptr; int thisdisp, vptrdisp, vtdisp; };
+ struct single_base_equiv { generic_function fptr; };
+
+ template<typename MemberFunctionType>
+ mfp_raw(MemberFunctionType mftp);
+
+ // extract the generic function and adjust the object pointer
+ void convert_to_generic(generic_function &func, mfp_generic_class *&object) const;
+
+ // actual state
+ uintptr_t m_function; // pointer to the function
+ int m_this_delta; // delta to apply to the 'this' pointer
+
+ int m_vptr_index; // index into the vptr table.
+ int m_vt_index; // offset to be applied after vptr table lookup.
+ unsigned m_size;
+ };
+
+ template <typename R>
+ using pmf_is_register_return_type = std::integral_constant<bool,
+ std::is_void_v<R> ||
+ std::is_scalar_v<R> ||
+ std::is_reference_v<R> ||
+ std::is_same_v<std::remove_cv_t<R>, compile_info::int128_type> ||
+ std::is_same_v<std::remove_cv_t<R>, compile_info::uint128_type> >;
+
+ template<ppmf_type PMFINTERNAL, typename R, typename... Targs>
struct mfp_helper
{
- static_assert(PMFTYPE == 2 && PMFINTERNAL >= 1 && PMFINTERNAL <=3, "Invalid PMF type");
+ protected:
+ static_assert(PMFINTERNAL >= ppmf_type::INTERNAL_ITANIUM && PMFINTERNAL <= ppmf_type::INTERNAL_MSC, "Invalid PMF type");
+
+ using traits = mfp_traits<R, Targs...>;
+ using generic_member_function = typename traits::template specific_member_function<mfp_generic_class>;
+ using generic_member_abi_function = typename traits::template member_static_ptr<mfp_generic_class>;
using raw_type = mfp_raw<PMFINTERNAL>;
using generic_function_storage = typename raw_type::generic_function;
- using generic_class = typename raw_type::generic_class;
- template <class C>
- using specific_member_function = R (C::*)(Targs...);
+ mfp_helper();
- template <class C>
- using const_specific_member_function = R (C::*)(Targs...) const;
+ template<typename O, typename F>
+ void bind(O *object, F *mftp);
- using generic_member_function = specific_member_function<generic_class>;
-
- template <class C>
- using member_abi_function = MEMBER_ABI R (*)(C *obj, Targs... args);
-
- template<typename FunctionType, typename MemberFunctionType, typename ObjectType>
- static std::pair<FunctionType, ObjectType *> get(MemberFunctionType mftp, ObjectType *object)
+ R call(Targs&&... args) const noexcept(true)
{
- raw_type mfpo(mftp);
- generic_function_storage rfunc(nullptr);
- // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
- auto *robject = reinterpret_cast<generic_class *>(object);
- mfpo.convert_to_generic(rfunc, robject);
+#if defined(_MSC_VER) && (PPMF_EXPERIMENTAL)
+ if constexpr (pmf_is_register_return_type<R>::value)
+ {
+ // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
+ const auto* func = reinterpret_cast<const generic_member_abi_function*>(&m_resolved);
+ return (*func)(m_obj, std::forward<Targs>(args)...);
+ }
+ else
+ {
+ using generic_member_abi_function_alt = void (*)(mfp_generic_class *,void *, Targs...);
+ // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
+ const auto* func = reinterpret_cast<const generic_member_abi_function_alt*>(&m_resolved);
+ std::uint8_t temp[sizeof(typename std::conditional<std::is_void_v<R>, void *, R>::type)];
+ (*func)(m_obj, &temp[0], std::forward<Targs>(args)...);
+ return *reinterpret_cast<R *>(&temp);
+ }
+#else
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
- return std::make_pair(reinterpret_cast<FunctionType>(rfunc), reinterpret_cast<ObjectType *>(robject));
- }
- template<typename O>
- static R call(const member_abi_function<O> *func, O *obj, Targs&&... args) noexcept(true)
- {
- return (*func)(obj, std::forward<Targs>(args)...);
+ const auto* func = reinterpret_cast<const generic_member_abi_function*>(&m_resolved);
+ return (*func)(m_obj, std::forward<Targs>(args)...);
+#endif
}
+
+ generic_function_storage m_resolved;
+ mfp_generic_class *m_obj;
};
template<typename R, typename... Targs>
- struct mfp_helper<PPMF_TYPE_PMF, 0, R, Targs...>
+ struct mfp_helper<ppmf_type::PMF, R, Targs...>
{
- template <class C>
- using specific_member_function = R (C::*)(Targs...);
+ protected:
+ using traits = mfp_traits<R, Targs...>;
+ using generic_member_function = typename traits::template specific_member_function<mfp_generic_class>;
template <class C>
- using const_specific_member_function = R (C::*)(Targs...) const;
+ using member_abi_function = typename traits::template specific_member_function<C>;
- class generic_class;
- using generic_member_function = specific_member_function<generic_class>;
+ mfp_helper();
- template <class C>
- using member_abi_function = specific_member_function<C>;
+ template<typename O, typename F>
+ void bind(O *object, F *mftp);
- using generic_function_storage = generic_member_function;
-
- template<typename FunctionType, typename MemberFunctionType, typename ObjectType>
- static std::pair<FunctionType, ObjectType *> get(MemberFunctionType mftp, ObjectType *object)
+ R call(Targs&&... args) const noexcept(true)
{
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
- return std::make_pair(reinterpret_cast<FunctionType>(mftp), reinterpret_cast<ObjectType *>(object));
+ auto* func = reinterpret_cast<const generic_member_function *>(&m_resolved);
+ return (*m_stub)(func, m_obj, std::forward<Targs>(args)...);
}
+ generic_member_function m_resolved;
+ mfp_generic_class *m_obj;
+ R (*m_stub)(const generic_member_function *funci, mfp_generic_class *obji, Targs&&... args);
+
+ private:
template<typename O>
- static R call(const member_abi_function<O> *func, O *obj, Targs&&... args) noexcept(true)
- {
- return (obj->*(*func))(std::forward<Targs>(args)...);
- }
+ static R stub(const generic_member_function* funci, mfp_generic_class* obji, Targs&&... args) noexcept(true);
};
template<typename R, typename... Targs>
- struct mfp_helper<PPMF_TYPE_GNUC_PMF_CONV, 0, R, Targs...>
+ struct mfp_helper<ppmf_type::GNUC_PMF_CONV, R, Targs...>
{
- template <class C>
- using specific_member_function = R (C::*)(Targs...);
+ protected:
+ using traits = mfp_traits<R, Targs...>;
template <class C>
- using const_specific_member_function = R (C::*)(Targs...) const;
-
- class generic_class;
- using generic_member_function = specific_member_function<generic_class>;
+ using member_abi_function = typename traits::template member_static_ptr<C>;
- template <class C>
- using member_abi_function = MEMBER_ABI R (*)(C *obj, Targs... args);
+ mfp_helper();
- using generic_function_storage = void (*)();
+ template<typename O, typename F>
+ void bind(O *object, F *mftp);
- template<typename FunctionType, typename MemberFunctionType, typename ObjectType>
- static std::pair<FunctionType, ObjectType *> get(MemberFunctionType mftp, ObjectType *object)
+ R call(Targs&&... args) const noexcept(true)
{
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
- return std::make_pair(reinterpret_cast<FunctionType>(object->*mftp), reinterpret_cast<ObjectType *>(object));
- }
- template<typename O>
- static R call(const member_abi_function<O> *func, O *obj, Targs&&... args) noexcept(true)
- {
- return (*func)(obj, std::forward<Targs>(args)...);
+ auto* func = reinterpret_cast<const member_abi_function<mfp_generic_class> *>(&m_resolved);
+ return (*func)(m_obj, std::forward<Targs>(args)...);
}
- };
- template<int PMFTYPE, int PMFINTERNAL, typename R, typename... Targs>
- class pmfp_base
- {
- public:
- using helper = mfp_helper<PMFTYPE, PMFINTERNAL, R, Targs...>;
-
- template <class C>
- using specific_member_function = typename helper::template specific_member_function<C>;
+ member_abi_function<mfp_generic_class> m_resolved;
+ mfp_generic_class *m_obj;
+ };
- template <class C>
- using const_specific_member_function = typename helper::template const_specific_member_function<C>;
+ template <ppmf_type PMFINTERNAL, typename R, typename... Targs>
+ using pmfp_helper_select = std::conditional<
+ pmf_is_register_return_type<R>::value
+ || PMFINTERNAL != ppmf_type::INTERNAL_MSC || (PPMF_EXPERIMENTAL),
+ mfp_helper<PMFINTERNAL, R, Targs...>, mfp_helper<ppmf_type::PMF, R, Targs...>>;
- using generic_class = typename helper::generic_class;
- using generic_member_function = typename helper::generic_member_function;
+ template<ppmf_type PMFINTERNAL, typename SIGNATURE> class pmfp_base;
- template <class C>
- using member_abi_function = typename helper::template member_abi_function<C>;
+ template<ppmf_type PMFINTERNAL, typename R, typename... Targs>
+ class pmfp_base<PMFINTERNAL, R (Targs...)> : public pmfp_helper_select<PMFINTERNAL, R, Targs...>::type
+ {
+ static_assert((compile_info::env::value != ci_env::NVCC) || (PMFINTERNAL != ppmf_type::GNUC_PMF_CONV), "GNUC_PMF_CONV not supported by nvcc");
+ public:
+ using helper = typename pmfp_helper_select<PMFINTERNAL, R, Targs...>::type;
- using generic_function_storage = typename helper::generic_function_storage;
+ using traits = mfp_traits<R, Targs...>;
pmfp_base()
- : m_obj(nullptr)
+ : helper()
{
- // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
- auto *s = reinterpret_cast<std::uint8_t *>(&m_resolved);
- std::fill(s, s + sizeof(m_resolved), 0);
}
- template<typename O>
- pmfp_base(specific_member_function<O> mftp, O *object)
- : m_obj(nullptr)
+ template<typename O, typename P>
+ pmfp_base(typename traits::template specific_member_function<O> mftp, P *object)
+ : helper()
{
- // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
- auto *s = reinterpret_cast<std::uint8_t *>(&m_resolved);
- std::fill(s, s + sizeof(m_resolved), 0);
- bind<specific_member_function<O>>(object, &mftp);
+ this->bind(static_cast<O*>(object), &mftp);
}
- template<typename O>
- pmfp_base(const_specific_member_function<O> mftp, O *object)
- : m_obj(nullptr)
+ template<typename O, typename P>
+ pmfp_base(typename traits::template const_specific_member_function<O> mftp, P *object)
+ : helper()
{
- // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
- auto *s = reinterpret_cast<std::uint8_t *>(&m_resolved);
- std::fill(s, s + sizeof(m_resolved), 0);
- bind<const_specific_member_function<O>>(object, &mftp);
+ this->bind(static_cast<O*>(object), &mftp);
}
- generic_class *object() const noexcept { return m_obj; }
- bool has_object() const noexcept { return m_obj != nullptr; }
+ mfp_generic_class *object() const noexcept { return this->m_obj; }
template<typename O>
- void set(specific_member_function<O> mftp, O *object)
+ void set(typename traits::template specific_member_function<O> mftp, O *object)
{
- bind<specific_member_function<O>>(object, &mftp);
+ this->bind(object, &mftp);
}
R operator()(Targs... args) const noexcept(true)
@@ -382,48 +395,17 @@ namespace plib {
return this->call(std::forward<Targs>(args)...);
}
- operator bool() const noexcept { return m_resolved != nullptr; }
- private:
- template<typename SPC, typename O, typename MF>
- void bind(O * object, MF *fraw)
- {
- SPC pFunc;
- static_assert(sizeof(pFunc) >= sizeof(MF), "size error");
- // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
- *reinterpret_cast<MF *>(&pFunc) = *fraw;
-
- auto r = helper::template get<member_abi_function<O>>(pFunc, object);
-
- static_assert(sizeof(m_resolved) >= sizeof(r.first), "size mismatch 1");
- static_assert(sizeof(m_resolved) >= sizeof(member_abi_function<O>), "size mismatch 2");
-
- //*reinterpret_cast<member_abi_function<O> *>(&m_resolved) = r.first;
- reinterpret_copy(r.first, m_resolved);
- // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
- m_obj = reinterpret_cast<generic_class *>(r.second);
- }
+ bool isnull() const noexcept { return this->m_resolved == nullptr; }
+ explicit operator bool() const noexcept { return !isnull(); }
+ bool has_object() const noexcept { return this->m_obj != nullptr; }
+ bool operator==(const pmfp_base &rhs) const { return this->m_resolved == rhs.m_resolved; }
+ bool operator!=(const pmfp_base &rhs) const { return !(*this == rhs); }
- template<typename O>
- R call(O *obj, Targs&&... args) const noexcept(true)
- {
- // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
- return helper::call(reinterpret_cast<member_abi_function<O> *>(&m_resolved),
- obj, std::forward<Targs>(args)...);
- }
-
- R call(Targs&&... args) const noexcept(true)
- {
- // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
- return helper::call(reinterpret_cast<const member_abi_function<generic_class> *>(&m_resolved),
- m_obj, std::forward<Targs>(args)...);
- }
-
- generic_function_storage m_resolved;
- generic_class *m_obj;
+ private:
};
- template<typename R, typename... Targs>
- using pmfp = pmfp_base<ppmf_type::value, ppmf_internal::value, R, Targs...>;
+ template<typename Signature>
+ using pmfp = pmfp_base<ppmf_internal_selector::value, Signature>;
///
/// \brief Class to support delegate late binding
@@ -432,68 +414,174 @@ namespace plib {
/// is virtual, the vtable may not yet be fully constructed. In these cases
/// the following class allows to construct the delegate later.
///
+ /// ```
/// plib::late_pmfp<plib::pmfp<void, pstring>> a(&nld_7493::printer);
/// // Store the a object somewhere
///
/// // After full construction ...
///
- /// auto dele = a(this);
- /// dele(pstring("Hello World!"));
- ///
+ /// auto delegate_obj = a(this);
+ /// delegate_obj(pstring("Hello World!"));
+ /// ```
template<typename T>
class late_pmfp
{
public:
using return_type = T;
-
- template <class C>
- using specific_member_function = typename return_type::template specific_member_function<C>; // noexcept(true) --> c++-17
-
- using generic_member_function = typename return_type::generic_member_function;
-
- class generic_class;
-
- using static_creator = return_type (*)(const generic_member_function *, generic_class *);
-
- late_pmfp() = default;
+ using traits = typename return_type::traits;
+ using generic_member_function = typename traits::template specific_member_function<mfp_generic_class>;
+ using static_creator = return_type (*)(const generic_member_function *, mfp_generic_class *);
template<typename O>
- late_pmfp(specific_member_function<O> mftp)
- {
- static_assert(sizeof(m_raw) >= sizeof(specific_member_function<O>), "size issue");
- // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
- *reinterpret_cast<specific_member_function<O> *>(&m_raw) = mftp;
- m_creator = creator<O>;
- }
+ late_pmfp(typename traits::template specific_member_function<O> mftp);
template<typename O>
return_type operator()(O *object) const
{
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
- return m_creator(&m_raw, reinterpret_cast<generic_class *>(object));
+ return m_creator(&m_raw, reinterpret_cast<mfp_generic_class *>(object));
}
private:
template <typename O>
- static return_type creator(const generic_member_function *raw, generic_class *obj)
- {
- // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
- auto p = reinterpret_cast<const specific_member_function<O> *>(raw);
- // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
- auto o = reinterpret_cast<O *>(obj);
- return return_type(*p, o);
- }
+ static return_type creator(const generic_member_function *raw, mfp_generic_class *obj);
generic_member_function m_raw;
static_creator m_creator;
};
-} // namespace plib
+ template<typename MemberFunctionType>
+ mfp_raw<ppmf_type::INTERNAL_ITANIUM>::mfp_raw(MemberFunctionType mftp)
+ : m_function(0), m_this_delta(0)
+ {
+ static_assert(sizeof(*this) >= sizeof(MemberFunctionType), "size mismatch");
+ *reinterpret_cast<MemberFunctionType *>(this) = mftp; // NOLINT
+ // NOLINTNEXTLINE(clang-analyzer-optin.cplusplus.UninitializedObject)
+ }
+
+ template<typename MemberFunctionType>
+ mfp_raw<ppmf_type::INTERNAL_ARM>::mfp_raw(MemberFunctionType mftp)
+ : m_function(0), m_this_delta(0)
+ {
+ static_assert(sizeof(*this) >= sizeof(MemberFunctionType), "size mismatch");
+ *reinterpret_cast<MemberFunctionType *>(this) = mftp; // NOLINT
+ }
-#if defined(__GNUC__) && !defined(__clang__)
-#pragma GCC diagnostic pop
+ template<typename MemberFunctionType>
+ mfp_raw<ppmf_type::INTERNAL_MSC>::mfp_raw(MemberFunctionType mftp)
+ : m_function(0), m_this_delta(0), m_vptr_index(0), m_vt_index(0), m_size(0)
+ {
+ static_assert(sizeof(*this) >= sizeof(MemberFunctionType), "size mismatch");
+ *reinterpret_cast<MemberFunctionType *>(this) = mftp; // NOLINT
+ m_size = sizeof(mftp); //NOLINT
+ }
+
+ template<ppmf_type PMFINTERNAL, typename R, typename... Targs>
+ mfp_helper<PMFINTERNAL, R, Targs...>::mfp_helper()
+ : m_obj(nullptr)
+ {
+ // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
+ auto *s = reinterpret_cast<std::uint8_t *>(&m_resolved);
+ std::fill(s, s + sizeof(m_resolved), 0);
+ }
+
+ template<ppmf_type PMFINTERNAL, typename R, typename... Targs>
+ template<typename O, typename F>
+ void mfp_helper<PMFINTERNAL, R, Targs...>::bind(O *object, F *mftp)
+ {
+ typename traits::template specific_member_function<O> pFunc;
+ static_assert(sizeof(pFunc) >= sizeof(F), "size error");
+ //# NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
+ //# *reinterpret_cast<F *>(&pFunc) = *mftp;
+ reinterpret_copy(*mftp, pFunc);
+ raw_type mfpo(pFunc);
+ generic_function_storage rfunc(nullptr);
+ // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
+ auto *robject = reinterpret_cast<mfp_generic_class *>(object);
+ mfpo.convert_to_generic(rfunc, robject);
+ reinterpret_copy(rfunc, this->m_resolved);
+ // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
+ m_obj = reinterpret_cast<mfp_generic_class *>(robject);
+ }
+
+ template<typename R, typename... Targs>
+ mfp_helper<ppmf_type::PMF, R, Targs...>::mfp_helper()
+ : m_obj(nullptr)
+ , m_stub(nullptr)
+ {
+ // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
+ auto *s = reinterpret_cast<std::uint8_t *>(&m_resolved);
+ std::fill(s, s + sizeof(m_resolved), 0);
+ }
+
+ template<typename R, typename... Targs>
+ template<typename O, typename F>
+ void mfp_helper<ppmf_type::PMF, R, Targs...>::bind(O *object, F *mftp)
+ {
+ reinterpret_copy(*mftp, this->m_resolved);
+ // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
+ m_obj = reinterpret_cast<mfp_generic_class *>(object);
+ m_stub = &stub<O>;
+ }
+
+ template<typename R, typename... Targs>
+ template<typename O>
+ R mfp_helper<ppmf_type::PMF, R, Targs...>::stub(const generic_member_function* funci, mfp_generic_class* obji, Targs&&... args) noexcept(true)
+ {
+ // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
+ auto* obj = reinterpret_cast<O*>(obji);
+ // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
+ auto* func = reinterpret_cast<const member_abi_function<O> *>(funci);
+ return (obj->*(*func))(std::forward<Targs>(args)...);
+ }
+
+ template<typename R, typename... Targs>
+ mfp_helper<ppmf_type::GNUC_PMF_CONV, R, Targs...>::mfp_helper()
+ : m_obj(nullptr)
+ {
+ // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
+ auto *s = reinterpret_cast<std::uint8_t *>(&m_resolved);
+ std::fill(s, s + sizeof(m_resolved), 0);
+ }
+
+ template<typename R, typename... Targs>
+ template<typename O, typename F>
+ void mfp_helper<ppmf_type::GNUC_PMF_CONV, R, Targs...>::bind(O *object, F *mftp)
+ {
+ // nvcc still tries to compile the code below - even when shielded with a `if constexpr`
+#if !defined(__NVCC__)
+ // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
+ member_abi_function<O> t = reinterpret_cast<member_abi_function<O>>(object->*(*mftp));
+ reinterpret_copy(t, this->m_resolved);
+ // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
+ m_obj = reinterpret_cast<mfp_generic_class *>(object);
#endif
+ }
+
+ template<typename T>
+ template<typename O>
+ late_pmfp<T>::late_pmfp(typename traits::template specific_member_function<O> mftp)
+ : m_creator(creator<O>)
+ {
+ static_assert(sizeof(m_raw) >= sizeof(typename traits::template specific_member_function<O>), "size issue");
+ // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
+ *reinterpret_cast<typename traits::template specific_member_function<O> *>(&m_raw) = mftp;
+ }
+ template<typename T>
+ template<typename O>
+ typename late_pmfp<T>::return_type late_pmfp<T>::creator(const typename late_pmfp<T>::generic_member_function *raw, mfp_generic_class *obj)
+ {
+ // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
+ auto p = reinterpret_cast<const typename late_pmfp<T>::traits::template specific_member_function<O> *>(raw);
+ // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
+ auto *o = reinterpret_cast<O *>(obj);
+ return return_type(*p, o);
+ }
+
+} // namespace plib
+
+#endif
#endif // PPMF_H_