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Move cpp_version_in_use() from cast.h to pybind11_tests.cpp

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This commit is contained in:
Ralf W. Grosse-Kunstleve 2022-06-21 18:12:22 -07:00
parent 369a3905fa
commit a34771aeda
4 changed files with 134 additions and 102 deletions
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68
include/pybind11/cast.h
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@ -14,6 +14,7 @@
#include "detail/descr.h"
#include "detail/smart_holder_sfinae_hooks_only.h"
#include "detail/type_caster_base.h"
#include "detail/type_caster_odr_guard.h"
#include "detail/typeid.h"
#include "pytypes.h"
@ -49,69 +50,8 @@ class type_caster : public type_caster_for_class_<type> {};
#ifdef PYBIND11_TYPE_CASTER_ODR_GUARD_ON
inline std::unordered_map<std::type_index, std::string> &odr_guard_registry() {
static std::unordered_map<std::type_index, std::string> reg;
return reg;
}
inline const char *cpp_version_in_use() {
return
# if defined(PYBIND11_CPP20)
"C++20";
# elif defined(PYBIND11_CPP17)
"C++17";
# elif defined(PYBIND11_CPP14)
"C++14";
# else
"C++11";
# endif
}
inline const char *source_file_line_basename(const char *sfl) {
unsigned i_base = 0;
for (unsigned i = 0; sfl[i] != '\0'; i++) {
if (sfl[i] == '/' || sfl[i] == '\\') {
i_base = i + 1;
}
}
return sfl + i_base;
}
namespace {
template <typename IntrinsicType>
bool odr_guard_impl(const std::type_index &it_ti, const char *source_file_line) {
// std::cout cannot be used here: static initialization could be incomplete.
# define PYBIND11_DETAIL_ODR_GUARD_IMPL_PRINTF_OFF
# ifdef PYBIND11_DETAIL_ODR_GUARD_IMPL_PRINTF_ON
fprintf(
stdout, "\nODR_GUARD_IMPL %s %s\n", type_id<IntrinsicType>().c_str(), source_file_line);
fflush(stdout);
# endif
std::string sflbn_str{source_file_line_basename(source_file_line)};
auto ins = odr_guard_registry().insert({it_ti, source_file_line});
auto reg_iter = ins.first;
auto added = ins.second;
if (!added
&& strcmp(source_file_line_basename(reg_iter->second.c_str()),
source_file_line_basename(source_file_line))
!= 0) {
std::system_error err(std::make_error_code(std::errc::state_not_recoverable),
"ODR VIOLATION DETECTED (" + std::string(cpp_version_in_use())
+ "): pybind11::detail::type_caster<" + type_id<IntrinsicType>()
+ ">: SourceLocation1=\"" + reg_iter->second
+ "\", SourceLocation2=\"" + source_file_line + "\"");
# define PYBIND11_TYPE_CASTER_ODR_GUARD_THROW_OFF
# ifdef PYBIND11_TYPE_CASTER_ODR_GUARD_THROW_ON
throw err;
# else
fprintf(stderr, "\nDISABLED std::system_error: %s\n", err.what());
fflush(stderr);
# endif
}
return true;
}
template <typename IntrinsicType>
struct type_caster_odr_guard : type_caster<IntrinsicType> {
static int translation_unit_local;
@ -129,17 +69,11 @@ int type_caster_odr_guard<IntrinsicType>::translation_unit_local = []() {
template <typename type>
using make_caster = type_caster_odr_guard<intrinsic_t<type>>;
# define PYBIND11_DETAIL_TYPE_CASTER_ACCESS_TRANSLATION_UNIT_LOCAL(...) \
if (::pybind11::detail::make_caster<__VA_ARGS__>::translation_unit_local) { \
}
#else // !PYBIND11_TYPE_CASTER_ODR_GUARD_ON
template <typename type>
using make_caster = type_caster<intrinsic_t<type>>;
# define PYBIND11_DETAIL_TYPE_CASTER_ACCESS_TRANSLATION_UNIT_LOCAL(...)
#endif
template <typename T>

35
include/pybind11/detail/type_caster_base.h
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@ -13,6 +13,7 @@
#include "common.h"
#include "descr.h"
#include "internals.h"
#include "type_caster_odr_guard.h"
#include "typeid.h"
#include <cstdint>
@ -904,40 +905,6 @@ struct polymorphic_type_hook : public polymorphic_type_hook_base<itype> {};
PYBIND11_NAMESPACE_BEGIN(detail)
#if !defined(PYBIND11_TYPE_CASTER_ODR_GUARD_ON) && !defined(PYBIND11_TYPE_CASTER_ODR_GUARD_OFF) \
&& (defined(_MSC_VER) || defined(PYBIND11_CPP20) \
|| (defined(PYBIND11_CPP17) && defined(__clang__)))
# define PYBIND11_TYPE_CASTER_ODR_GUARD_ON
#endif
#ifdef PYBIND11_TYPE_CASTER_ODR_GUARD_ON
namespace {
template <size_t N, typename... Ts>
struct tu_local_descr : descr<N, Ts...> {
using descr_t = descr<N, Ts...>;
using descr_t::descr_t;
};
template <size_t N>
constexpr tu_local_descr<N - 1> tu_local_const_name(char const (&text)[N]) {
return tu_local_descr<N - 1>(text);
}
constexpr tu_local_descr<0> tu_local_const_name(char const (&)[1]) { return {}; }
} // namespace
# define PYBIND11_TYPE_CASTER_SOURCE_FILE_LINE \
static constexpr auto source_file_line \
= ::pybind11::detail::tu_local_const_name(__FILE__ ":" PYBIND11_TOSTRING(__LINE__));
#else // !PYBIND11_TYPE_CASTER_ODR_GUARD_ON
# define PYBIND11_TYPE_CASTER_SOURCE_FILE_LINE
#endif
/// Generic type caster for objects stored on the heap
template <typename type>
class type_caster_base : public type_caster_generic {

118
include/pybind11/detail/type_caster_odr_guard.h Normal file
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@ -0,0 +1,118 @@
// Copyright (c) 2022 The Pybind Development Team.
// All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#pragma once
#if !defined(PYBIND11_TYPE_CASTER_ODR_GUARD_ON) && !defined(PYBIND11_TYPE_CASTER_ODR_GUARD_OFF) \
&& (defined(_MSC_VER) || defined(PYBIND11_CPP20) \
|| (defined(PYBIND11_CPP17) && defined(__clang__)))
# define PYBIND11_TYPE_CASTER_ODR_GUARD_ON
#endif
#ifndef PYBIND11_TYPE_CASTER_ODR_GUARD_ON
# define PYBIND11_TYPE_CASTER_SOURCE_FILE_LINE
# define PYBIND11_DETAIL_TYPE_CASTER_ACCESS_TRANSLATION_UNIT_LOCAL(...)
#else
# include "common.h"
# include "descr.h"
# include "typeid.h"
# include <array>
# include <cstring>
# include <functional>
# include <iosfwd>
# include <iterator>
# include <memory>
# include <string>
# include <system_error>
# include <tuple>
# include <type_traits>
# include <typeindex>
# include <unordered_map>
# include <utility>
# include <vector>
PYBIND11_NAMESPACE_BEGIN(PYBIND11_NAMESPACE)
PYBIND11_NAMESPACE_BEGIN(detail)
inline std::unordered_map<std::type_index, std::string> &odr_guard_registry() {
static std::unordered_map<std::type_index, std::string> reg;
return reg;
}
inline const char *source_file_line_basename(const char *sfl) {
unsigned i_base = 0;
for (unsigned i = 0; sfl[i] != '\0'; i++) {
if (sfl[i] == '/' || sfl[i] == '\\') {
i_base = i + 1;
}
}
return sfl + i_base;
}
template <typename IntrinsicType>
bool odr_guard_impl(const std::type_index &it_ti, const char *source_file_line) {
// std::cout cannot be used here: static initialization could be incomplete.
# define PYBIND11_DETAIL_ODR_GUARD_IMPL_PRINTF_OFF
# ifdef PYBIND11_DETAIL_ODR_GUARD_IMPL_PRINTF_ON
fprintf(
stdout, "\nODR_GUARD_IMPL %s %s\n", type_id<IntrinsicType>().c_str(), source_file_line);
fflush(stdout);
# endif
std::string sflbn_str{source_file_line_basename(source_file_line)};
auto ins = odr_guard_registry().insert({it_ti, source_file_line});
auto reg_iter = ins.first;
auto added = ins.second;
if (!added
&& strcmp(source_file_line_basename(reg_iter->second.c_str()),
source_file_line_basename(source_file_line))
!= 0) {
std::system_error err(std::make_error_code(std::errc::state_not_recoverable),
"ODR VIOLATION DETECTED: pybind11::detail::type_caster<"
+ type_id<IntrinsicType>() + ">: SourceLocation1=\""
+ reg_iter->second + "\", SourceLocation2=\"" + source_file_line
+ "\"");
# define PYBIND11_TYPE_CASTER_ODR_GUARD_THROW_OFF
# ifdef PYBIND11_TYPE_CASTER_ODR_GUARD_THROW_ON
throw err;
# else
fprintf(stderr, "\nDISABLED std::system_error: %s\n", err.what());
fflush(stderr);
# endif
}
return true;
}
namespace {
template <size_t N, typename... Ts>
struct tu_local_descr : descr<N, Ts...> {
using descr_t = descr<N, Ts...>;
using descr_t::descr_t;
};
template <size_t N>
constexpr tu_local_descr<N - 1> tu_local_const_name(char const (&text)[N]) {
return tu_local_descr<N - 1>(text);
}
constexpr tu_local_descr<0> tu_local_const_name(char const (&)[1]) { return {}; }
} // namespace
PYBIND11_NAMESPACE_END(detail)
PYBIND11_NAMESPACE_END(PYBIND11_NAMESPACE)
# define PYBIND11_TYPE_CASTER_SOURCE_FILE_LINE \
static constexpr auto source_file_line \
= ::pybind11::detail::tu_local_const_name(__FILE__ ":" PYBIND11_TOSTRING(__LINE__));
# define PYBIND11_DETAIL_TYPE_CASTER_ACCESS_TRANSLATION_UNIT_LOCAL(...) \
if (::pybind11::detail::make_caster<__VA_ARGS__>::translation_unit_local) { \
}
#endif

15
tests/pybind11_tests.cpp
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@ -62,10 +62,23 @@ void bind_ConstructorStats(py::module_ &m) {
});
}
const char *cpp_version_in_use() {
return
#if defined(PYBIND11_CPP20)
"C++20";
#elif defined(PYBIND11_CPP17)
"C++17";
#elif defined(PYBIND11_CPP14)
"C++14";
#else
"C++11";
#endif
}
PYBIND11_MODULE(pybind11_tests, m) {
m.doc() = "pybind11 test module";
m.attr("cpp_version_in_use") = py::detail::cpp_version_in_use();
m.attr("cpp_version_in_use") = cpp_version_in_use();
m.attr("PYBIND11_INTERNALS_ID") = PYBIND11_INTERNALS_ID;
bind_ConstructorStats(m);