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Factor out pybind11/conduit/pybind11_platform_abi_id.h (#5375)
* Factor out pybind11/compat/wrap_include_python_h.h * Fixes to resolve tests_packaging failures. * Factor out pybind11/compat/pybind11_platform_abi_id.h * Add pybind11/compat/README.txt and a couple source code comments. * Minor changes to comments. * Factor out pybind11/compat/pybind11_conduit_v1.h * Add long comment to pybind11/compat/pybind11_conduit_v1.h * Add pybind11/compat/README.txt to wheels. * Add `-fno-exceptions` to compiler options for exo_planet_c_api * 1. Move `target_compile_options()` into loop over test targets, in case the `"exo_planet_c_api"` target does not exist. 2. Add `-fno-exceptions` option also for `NVHPC`. 3. Also check for `__cpp_exceptions` in exo_planet_c_api.cpp. * 1. Fix accident (forgot to undo temporary change). 2. Special-case __EMSCRIPTEN__ in exo_planet_c_api.cpp * Give up on compiling exo_planet_c_api.cpp with MSVC `/EHs-c-`: There was one trouble maker (all other jobs worked): Visual Studio 15 2017: ``` cl : Command line warning D9025: overriding '/EHc' with '/EHc-' [C:\projects\pybind11\tests\exo_planet_c_api.vcxproj] ... C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.16.27023\include\xlocale(319): error C2220: warning treated as error - no 'object' file generated [C:\projects\pybind11\tests\exo_planet_c_api.vcxproj] C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.16.27023\include\xlocale(319): warning C4530: C++ exception handler used, but unwind semantics are not enabled. Specify /EHsc ``` * Move pybind11/compat to pybind11/conduit as suggested by @henryiii: https://github.com/pybind/pybind11/pull/5375#pullrequestreview-2329006001
This commit is contained in:
Ralf W. Grosse-Kunstleve
committed by
GitHub
GitHub
parent
ec9c26817f
commit
a90e2af88d
15
include/pybind11/conduit/README.txt
Normal file
15
include/pybind11/conduit/README.txt
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@@ -0,0 +1,15 @@
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NOTE
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----
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The C++ code here
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** only depends on <Python.h> **
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and nothing else.
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DO NOT ADD CODE WITH OTHER EXTERNAL DEPENDENCIES TO THIS DIRECTORY.
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Read on:
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pybind11_conduit_v1.h — Type-safe interoperability between different
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independent Python/C++ bindings systems.
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111
include/pybind11/conduit/pybind11_conduit_v1.h
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111
include/pybind11/conduit/pybind11_conduit_v1.h
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@@ -0,0 +1,111 @@
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// Copyright (c) 2024 The pybind Community.
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/* The pybind11_conduit_v1 feature enables type-safe interoperability between
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* different independent Python/C++ bindings systems,
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* including pybind11 versions with different PYBIND11_INTERNALS_VERSION's.
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The naming of the feature is a bit misleading:
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* The feature is in no way tied to pybind11 internals.
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* It just happens to originate from pybind11 and currently still lives there.
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* The only external dependency is <Python.h>.
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The implementation is a VERY light-weight dependency. It is designed to be
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compatible with any ISO C++11 (or higher) compiler, and does NOT require
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C++ Exception Handling to be enabled.
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Please see https://github.com/pybind/pybind11/pull/5296 for more background.
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The implementation involves a
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def _pybind11_conduit_v1_(
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self,
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pybind11_platform_abi_id: bytes,
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cpp_type_info_capsule: capsule,
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pointer_kind: bytes) -> capsule
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method that is meant to be added to Python objects wrapping C++ objects
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(e.g. pybind11::class_-wrapped types).
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The design of the _pybind11_conduit_v1_ feature provides two layers of
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protection against C++ ABI mismatches:
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* The first and most important layer is that the pybind11_platform_abi_id's
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must match between extensions. — This will never be perfect, but is the same
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pragmatic approach used in pybind11 since 2017
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(https://github.com/pybind/pybind11/commit/96997a4b9d4ec3d389a570604394af5d5eee2557,
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PYBIND11_INTERNALS_ID).
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* The second layer is that the typeid(std::type_info).name()'s must match
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between extensions.
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The implementation below (which is shorter than this comment!), serves as a
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battle-tested specification. The main API is this one function:
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auto *cpp_pointer = pybind11_conduit_v1::get_type_pointer_ephemeral<YourType>(py_obj);
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It is meant to be a minimalistic reference implementation, intentionally
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without comprehensive error reporting. It is expected that major bindings
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systems will roll their own, compatible implementations, potentially with
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system-specific error reporting. The essential specifications all bindings
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systems need to agree on are merely:
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* PYBIND11_PLATFORM_ABI_ID (const char* literal).
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* The cpp_type_info capsule (see below: a void *ptr and a const char *name).
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* The cpp_conduit capsule (see below: a void *ptr and a const char *name).
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* "raw_pointer_ephemeral" means: the lifetime of the pointer is the lifetime
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of the py_obj.
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*/
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// THIS MUST STAY AT THE TOP!
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#include "pybind11_platform_abi_id.h"
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#include <Python.h>
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#include <typeinfo>
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namespace pybind11_conduit_v1 {
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inline void *get_raw_pointer_ephemeral(PyObject *py_obj, const std::type_info *cpp_type_info) {
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PyObject *cpp_type_info_capsule
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= PyCapsule_New(const_cast<void *>(static_cast<const void *>(cpp_type_info)),
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typeid(std::type_info).name(),
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nullptr);
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if (cpp_type_info_capsule == nullptr) {
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return nullptr;
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}
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PyObject *cpp_conduit = PyObject_CallMethod(py_obj,
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"_pybind11_conduit_v1_",
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"yOy",
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PYBIND11_PLATFORM_ABI_ID,
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cpp_type_info_capsule,
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"raw_pointer_ephemeral");
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Py_DECREF(cpp_type_info_capsule);
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if (cpp_conduit == nullptr) {
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return nullptr;
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}
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void *raw_ptr = PyCapsule_GetPointer(cpp_conduit, cpp_type_info->name());
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Py_DECREF(cpp_conduit);
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if (PyErr_Occurred()) {
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return nullptr;
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}
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return raw_ptr;
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}
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template <typename T>
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T *get_type_pointer_ephemeral(PyObject *py_obj) {
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void *raw_ptr = get_raw_pointer_ephemeral(py_obj, &typeid(T));
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if (raw_ptr == nullptr) {
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return nullptr;
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}
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return static_cast<T *>(raw_ptr);
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}
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} // namespace pybind11_conduit_v1
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88
include/pybind11/conduit/pybind11_platform_abi_id.h
Normal file
88
include/pybind11/conduit/pybind11_platform_abi_id.h
Normal file
@@ -0,0 +1,88 @@
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#pragma once
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// Copyright (c) 2024 The pybind Community.
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// To maximize reusability:
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// DO NOT ADD CODE THAT REQUIRES C++ EXCEPTION HANDLING.
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#include "wrap_include_python_h.h"
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// Implementation details. DO NOT USE ELSEWHERE. (Unfortunately we cannot #undef them.)
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// This is duplicated here to maximize portability.
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#define PYBIND11_PLATFORM_ABI_ID_STRINGIFY(x) #x
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#define PYBIND11_PLATFORM_ABI_ID_TOSTRING(x) PYBIND11_PLATFORM_ABI_ID_STRINGIFY(x)
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// On MSVC, debug and release builds are not ABI-compatible!
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#if defined(_MSC_VER) && defined(_DEBUG)
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# define PYBIND11_BUILD_TYPE "_debug"
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#else
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# define PYBIND11_BUILD_TYPE ""
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#endif
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// Let's assume that different compilers are ABI-incompatible.
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// A user can manually set this string if they know their
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// compiler is compatible.
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#ifndef PYBIND11_COMPILER_TYPE
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# if defined(_MSC_VER)
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# define PYBIND11_COMPILER_TYPE "_msvc"
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# elif defined(__INTEL_COMPILER)
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# define PYBIND11_COMPILER_TYPE "_icc"
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# elif defined(__clang__)
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# define PYBIND11_COMPILER_TYPE "_clang"
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# elif defined(__PGI)
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# define PYBIND11_COMPILER_TYPE "_pgi"
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# elif defined(__MINGW32__)
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# define PYBIND11_COMPILER_TYPE "_mingw"
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# elif defined(__CYGWIN__)
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# define PYBIND11_COMPILER_TYPE "_gcc_cygwin"
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# elif defined(__GNUC__)
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# define PYBIND11_COMPILER_TYPE "_gcc"
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# else
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# define PYBIND11_COMPILER_TYPE "_unknown"
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# endif
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#endif
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// Also standard libs
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#ifndef PYBIND11_STDLIB
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# if defined(_LIBCPP_VERSION)
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# define PYBIND11_STDLIB "_libcpp"
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# elif defined(__GLIBCXX__) || defined(__GLIBCPP__)
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# define PYBIND11_STDLIB "_libstdcpp"
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# else
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# define PYBIND11_STDLIB ""
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# endif
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#endif
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#ifndef PYBIND11_BUILD_ABI
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# if defined(__GXX_ABI_VERSION) // Linux/OSX.
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# define PYBIND11_BUILD_ABI "_cxxabi" PYBIND11_PLATFORM_ABI_ID_TOSTRING(__GXX_ABI_VERSION)
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# elif defined(_MSC_VER) // See PR #4953.
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# if defined(_MT) && defined(_DLL) // Corresponding to CL command line options /MD or /MDd.
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# if (_MSC_VER) / 100 == 19
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# define PYBIND11_BUILD_ABI "_md_mscver19"
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# else
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# error "Unknown major version for MSC_VER: PLEASE REVISE THIS CODE."
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# endif
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# elif defined(_MT) // Corresponding to CL command line options /MT or /MTd.
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# define PYBIND11_BUILD_ABI "_mt_mscver" PYBIND11_PLATFORM_ABI_ID_TOSTRING(_MSC_VER)
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# else
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# if (_MSC_VER) / 100 == 19
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# define PYBIND11_BUILD_ABI "_none_mscver19"
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# else
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# error "Unknown major version for MSC_VER: PLEASE REVISE THIS CODE."
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# endif
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# endif
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# elif defined(__NVCOMPILER) // NVHPC (PGI-based).
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# define PYBIND11_BUILD_ABI "" // TODO: What should be here, to prevent UB?
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# else
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# error "Unknown platform or compiler: PLEASE REVISE THIS CODE."
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# endif
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#endif
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#ifndef PYBIND11_INTERNALS_KIND
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# define PYBIND11_INTERNALS_KIND ""
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#endif
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#define PYBIND11_PLATFORM_ABI_ID \
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PYBIND11_INTERNALS_KIND PYBIND11_COMPILER_TYPE PYBIND11_STDLIB PYBIND11_BUILD_ABI \
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PYBIND11_BUILD_TYPE
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72
include/pybind11/conduit/wrap_include_python_h.h
Normal file
72
include/pybind11/conduit/wrap_include_python_h.h
Normal file
@@ -0,0 +1,72 @@
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#pragma once
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// Copyright (c) 2024 The pybind Community.
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// STRONG REQUIREMENT:
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// This header is a wrapper around `#include <Python.h>`, therefore it
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// MUST BE INCLUDED BEFORE ANY STANDARD HEADERS are included.
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// See also:
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// https://docs.python.org/3/c-api/intro.html#include-files
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// Quoting from there:
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// Note: Since Python may define some pre-processor definitions which affect
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// the standard headers on some systems, you must include Python.h before
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// any standard headers are included.
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// To maximize reusability:
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// DO NOT ADD CODE THAT REQUIRES C++ EXCEPTION HANDLING.
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// Disable linking to pythonX_d.lib on Windows in debug mode.
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#if defined(_MSC_VER) && defined(_DEBUG) && !defined(Py_DEBUG)
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// Workaround for a VS 2022 issue.
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// See https://github.com/pybind/pybind11/pull/3497 for full context.
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// NOTE: This workaround knowingly violates the Python.h include order
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// requirement (see above).
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# include <yvals.h>
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# if _MSVC_STL_VERSION >= 143
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# include <crtdefs.h>
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# endif
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# define PYBIND11_DEBUG_MARKER
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# undef _DEBUG
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#endif
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// Don't let Python.h #define (v)snprintf as macro because they are implemented
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// properly in Visual Studio since 2015.
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#if defined(_MSC_VER)
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# define HAVE_SNPRINTF 1
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#endif
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#if defined(_MSC_VER)
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# pragma warning(push)
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# pragma warning(disable : 4505)
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// C4505: 'PySlice_GetIndicesEx': unreferenced local function has been removed
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#endif
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#include <Python.h>
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#include <frameobject.h>
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#include <pythread.h>
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#if defined(_MSC_VER)
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# pragma warning(pop)
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#endif
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#if defined(PYBIND11_DEBUG_MARKER)
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# define _DEBUG
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# undef PYBIND11_DEBUG_MARKER
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#endif
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// Python #defines overrides on all sorts of core functions, which
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// tends to wreak havok in C++ codebases that expect these to work
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// like regular functions (potentially with several overloads).
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#if defined(isalnum)
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# undef isalnum
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# undef isalpha
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# undef islower
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# undef isspace
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# undef isupper
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# undef tolower
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# undef toupper
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#endif
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#if defined(copysign)
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# undef copysign
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#endif
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@@ -9,6 +9,11 @@
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#pragma once
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#include <pybind11/conduit/wrap_include_python_h.h>
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#if PY_VERSION_HEX < 0x03080000
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# error "PYTHON < 3.8 IS UNSUPPORTED. pybind11 v2.13 was the last to support Python 3.7."
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#endif
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#define PYBIND11_VERSION_MAJOR 2
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#define PYBIND11_VERSION_MINOR 14
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#define PYBIND11_VERSION_PATCH 0.dev1
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@@ -204,31 +209,6 @@
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# define PYBIND11_MAYBE_UNUSED __attribute__((__unused__))
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#endif
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/* Don't let Python.h #define (v)snprintf as macro because they are implemented
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properly in Visual Studio since 2015. */
|
||||
#if defined(_MSC_VER)
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# define HAVE_SNPRINTF 1
|
||||
#endif
|
||||
|
||||
/// Include Python header, disable linking to pythonX_d.lib on Windows in debug mode
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||||
#if defined(_MSC_VER)
|
||||
PYBIND11_WARNING_PUSH
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PYBIND11_WARNING_DISABLE_MSVC(4505)
|
||||
// C4505: 'PySlice_GetIndicesEx': unreferenced local function has been removed (PyPy only)
|
||||
# if defined(_DEBUG) && !defined(Py_DEBUG)
|
||||
// Workaround for a VS 2022 issue.
|
||||
// NOTE: This workaround knowingly violates the Python.h include order requirement:
|
||||
// https://docs.python.org/3/c-api/intro.html#include-files
|
||||
// See https://github.com/pybind/pybind11/pull/3497 for full context.
|
||||
# include <yvals.h>
|
||||
# if _MSVC_STL_VERSION >= 143
|
||||
# include <crtdefs.h>
|
||||
# endif
|
||||
# define PYBIND11_DEBUG_MARKER
|
||||
# undef _DEBUG
|
||||
# endif
|
||||
#endif
|
||||
|
||||
// https://en.cppreference.com/w/c/chrono/localtime
|
||||
#if defined(__STDC_LIB_EXT1__) && !defined(__STDC_WANT_LIB_EXT1__)
|
||||
# define __STDC_WANT_LIB_EXT1__
|
||||
@@ -263,30 +243,6 @@ PYBIND11_WARNING_DISABLE_MSVC(4505)
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#include <Python.h>
|
||||
#if PY_VERSION_HEX < 0x03080000
|
||||
# error "PYTHON < 3.8 IS UNSUPPORTED. pybind11 v2.13 was the last to support Python 3.7."
|
||||
#endif
|
||||
#include <frameobject.h>
|
||||
#include <pythread.h>
|
||||
|
||||
/* Python #defines overrides on all sorts of core functions, which
|
||||
tends to weak havok in C++ codebases that expect these to work
|
||||
like regular functions (potentially with several overloads) */
|
||||
#if defined(isalnum)
|
||||
# undef isalnum
|
||||
# undef isalpha
|
||||
# undef islower
|
||||
# undef isspace
|
||||
# undef isupper
|
||||
# undef tolower
|
||||
# undef toupper
|
||||
#endif
|
||||
|
||||
#if defined(copysign)
|
||||
# undef copysign
|
||||
#endif
|
||||
|
||||
#if defined(PYBIND11_NUMPY_1_ONLY)
|
||||
# define PYBIND11_INTERNAL_NUMPY_1_ONLY_DETECTED
|
||||
#endif
|
||||
@@ -295,14 +251,6 @@ PYBIND11_WARNING_DISABLE_MSVC(4505)
|
||||
# define PYBIND11_SIMPLE_GIL_MANAGEMENT
|
||||
#endif
|
||||
|
||||
#if defined(_MSC_VER)
|
||||
# if defined(PYBIND11_DEBUG_MARKER)
|
||||
# define _DEBUG
|
||||
# undef PYBIND11_DEBUG_MARKER
|
||||
# endif
|
||||
PYBIND11_WARNING_POP
|
||||
#endif
|
||||
|
||||
#include <cstddef>
|
||||
#include <cstring>
|
||||
#include <exception>
|
||||
|
||||
@@ -15,6 +15,7 @@
|
||||
# include <pybind11/gil.h>
|
||||
#endif
|
||||
|
||||
#include <pybind11/conduit/pybind11_platform_abi_id.h>
|
||||
#include <pybind11/pytypes.h>
|
||||
|
||||
#include <exception>
|
||||
@@ -269,81 +270,6 @@ struct type_info {
|
||||
bool module_local : 1;
|
||||
};
|
||||
|
||||
/// On MSVC, debug and release builds are not ABI-compatible!
|
||||
#if defined(_MSC_VER) && defined(_DEBUG)
|
||||
# define PYBIND11_BUILD_TYPE "_debug"
|
||||
#else
|
||||
# define PYBIND11_BUILD_TYPE ""
|
||||
#endif
|
||||
|
||||
/// Let's assume that different compilers are ABI-incompatible.
|
||||
/// A user can manually set this string if they know their
|
||||
/// compiler is compatible.
|
||||
#ifndef PYBIND11_COMPILER_TYPE
|
||||
# if defined(_MSC_VER)
|
||||
# define PYBIND11_COMPILER_TYPE "_msvc"
|
||||
# elif defined(__INTEL_COMPILER)
|
||||
# define PYBIND11_COMPILER_TYPE "_icc"
|
||||
# elif defined(__clang__)
|
||||
# define PYBIND11_COMPILER_TYPE "_clang"
|
||||
# elif defined(__PGI)
|
||||
# define PYBIND11_COMPILER_TYPE "_pgi"
|
||||
# elif defined(__MINGW32__)
|
||||
# define PYBIND11_COMPILER_TYPE "_mingw"
|
||||
# elif defined(__CYGWIN__)
|
||||
# define PYBIND11_COMPILER_TYPE "_gcc_cygwin"
|
||||
# elif defined(__GNUC__)
|
||||
# define PYBIND11_COMPILER_TYPE "_gcc"
|
||||
# else
|
||||
# define PYBIND11_COMPILER_TYPE "_unknown"
|
||||
# endif
|
||||
#endif
|
||||
|
||||
/// Also standard libs
|
||||
#ifndef PYBIND11_STDLIB
|
||||
# if defined(_LIBCPP_VERSION)
|
||||
# define PYBIND11_STDLIB "_libcpp"
|
||||
# elif defined(__GLIBCXX__) || defined(__GLIBCPP__)
|
||||
# define PYBIND11_STDLIB "_libstdcpp"
|
||||
# else
|
||||
# define PYBIND11_STDLIB ""
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#ifndef PYBIND11_BUILD_ABI
|
||||
# if defined(__GXX_ABI_VERSION) // Linux/OSX.
|
||||
# define PYBIND11_BUILD_ABI "_cxxabi" PYBIND11_TOSTRING(__GXX_ABI_VERSION)
|
||||
# elif defined(_MSC_VER) // See PR #4953.
|
||||
# if defined(_MT) && defined(_DLL) // Corresponding to CL command line options /MD or /MDd.
|
||||
# if (_MSC_VER) / 100 == 19
|
||||
# define PYBIND11_BUILD_ABI "_md_mscver19"
|
||||
# else
|
||||
# error "Unknown major version for MSC_VER: PLEASE REVISE THIS CODE."
|
||||
# endif
|
||||
# elif defined(_MT) // Corresponding to CL command line options /MT or /MTd.
|
||||
# define PYBIND11_BUILD_ABI "_mt_mscver" PYBIND11_TOSTRING(_MSC_VER)
|
||||
# else
|
||||
# if (_MSC_VER) / 100 == 19
|
||||
# define PYBIND11_BUILD_ABI "_none_mscver19"
|
||||
# else
|
||||
# error "Unknown major version for MSC_VER: PLEASE REVISE THIS CODE."
|
||||
# endif
|
||||
# endif
|
||||
# elif defined(__NVCOMPILER) // NVHPC (PGI-based).
|
||||
# define PYBIND11_BUILD_ABI "" // TODO: What should be here, to prevent UB?
|
||||
# else
|
||||
# error "Unknown platform or compiler: PLEASE REVISE THIS CODE."
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#ifndef PYBIND11_INTERNALS_KIND
|
||||
# define PYBIND11_INTERNALS_KIND ""
|
||||
#endif
|
||||
|
||||
#define PYBIND11_PLATFORM_ABI_ID \
|
||||
PYBIND11_INTERNALS_KIND PYBIND11_COMPILER_TYPE PYBIND11_STDLIB PYBIND11_BUILD_ABI \
|
||||
PYBIND11_BUILD_TYPE
|
||||
|
||||
#define PYBIND11_INTERNALS_ID \
|
||||
"__pybind11_internals_v" PYBIND11_TOSTRING(PYBIND11_INTERNALS_VERSION) \
|
||||
PYBIND11_PLATFORM_ABI_ID "__"
|
||||
|
||||
Reference in New Issue
Block a user