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Fixing up cast.h and smart_holder.h after rebase.

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Ralf W. Grosse-Kunstleve 2021-02-01 18:31:40 -08:00
parent b9eb2a46c4
commit c8eb29c8f5
2 changed files with 38 additions and 31 deletions
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68
include/pybind11/cast.h
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@ -14,6 +14,7 @@
#include "detail/typeid.h" #include "detail/typeid.h"
#include "detail/descr.h" #include "detail/descr.h"
#include "detail/internals.h" #include "detail/internals.h"
#include "detail/smart_holder_poc.h"
#include <array> #include <array>
#include <limits> #include <limits>
#include <tuple> #include <tuple>
@ -37,6 +38,9 @@
#endif #endif
PYBIND11_NAMESPACE_BEGIN(PYBIND11_NAMESPACE) PYBIND11_NAMESPACE_BEGIN(PYBIND11_NAMESPACE)
using pybindit::memory::smart_holder;
PYBIND11_NAMESPACE_BEGIN(detail) PYBIND11_NAMESPACE_BEGIN(detail)
/// A life support system for temporary objects created by `type_caster::load()`. /// A life support system for temporary objects created by `type_caster::load()`.
@ -1231,8 +1235,10 @@ struct smart_holder_type_caster_load {
return std::shared_ptr<T>(void_ptr, convert_type(void_ptr.get())); return std::shared_ptr<T>(void_ptr, convert_type(void_ptr.get()));
} }
std::unique_ptr<T> loaded_as_unique_ptr() { template <typename D = std::default_delete<T>>
holder().ensure_can_release_ownership(); std::unique_ptr<T, D> loaded_as_unique_ptr(const char *context = "loaded_as_unique_ptr") {
holder().template ensure_compatible_rtti_uqp_del<T, D>(context);
holder().ensure_use_count_1(context);
auto raw_void_ptr = holder().template as_raw_ptr_unowned<void>(); auto raw_void_ptr = holder().template as_raw_ptr_unowned<void>();
// MISSING: Safety checks for type conversions // MISSING: Safety checks for type conversions
// (T must be polymorphic or meet certain other conditions). // (T must be polymorphic or meet certain other conditions).
@ -1240,7 +1246,7 @@ struct smart_holder_type_caster_load {
// Critical transfer-of-ownership section. This must stay together. // Critical transfer-of-ownership section. This must stay together.
holder().release_ownership(); holder().release_ownership();
auto result = std::unique_ptr<T>(raw_type_ptr); auto result = std::unique_ptr<T, D>(raw_type_ptr);
void *value_void_ptr void *value_void_ptr
= load_impl.loaded_v_h.value_ptr(); // Expected to be identical to raw_void_ptr. = load_impl.loaded_v_h.value_ptr(); // Expected to be identical to raw_void_ptr.
@ -1495,12 +1501,12 @@ struct smart_holder_type_caster<std::shared_ptr<T const>> : smart_holder_type_ca
operator std::shared_ptr<T const>() { return this->loaded_as_shared_ptr(); } // Mutbl2Const operator std::shared_ptr<T const>() { return this->loaded_as_shared_ptr(); } // Mutbl2Const
}; };
template <typename T> template <typename T, typename D>
struct smart_holder_type_caster<std::unique_ptr<T>> : smart_holder_type_caster_load<T>, struct smart_holder_type_caster<std::unique_ptr<T, D>> : smart_holder_type_caster_load<T>,
smart_holder_type_caster_class_hooks { smart_holder_type_caster_class_hooks {
static constexpr auto name = _<std::unique_ptr<T>>(); static constexpr auto name = _<std::unique_ptr<T, D>>();
static handle cast(std::unique_ptr<T> &&src, return_value_policy policy, handle parent) { static handle cast(std::unique_ptr<T, D> &&src, return_value_policy policy, handle parent) {
if (policy != return_value_policy::automatic if (policy != return_value_policy::automatic
&& policy != return_value_policy::reference_internal) { && policy != return_value_policy::reference_internal) {
// IMPROVABLE: Error message. // IMPROVABLE: Error message.
@ -1533,27 +1539,28 @@ struct smart_holder_type_caster<std::unique_ptr<T>> : smart_holder_type_caster_l
} }
template <typename> template <typename>
using cast_op_type = std::unique_ptr<T>; using cast_op_type = std::unique_ptr<T, D>;
operator std::unique_ptr<T>() { return this->loaded_as_unique_ptr(); } operator std::unique_ptr<T, D>() { return this->template loaded_as_unique_ptr<D>(); }
}; };
template <typename T> template <typename T, typename D>
struct smart_holder_type_caster<std::unique_ptr<T const>> : smart_holder_type_caster_load<T>, struct smart_holder_type_caster<std::unique_ptr<T const, D>>
smart_holder_type_caster_class_hooks { : smart_holder_type_caster_load<T>, smart_holder_type_caster_class_hooks {
static constexpr auto name = _<std::unique_ptr<T const>>(); static constexpr auto name = _<std::unique_ptr<T const, D>>();
static handle cast(std::unique_ptr<T const> &&src, return_value_policy policy, handle parent) { static handle
return smart_holder_type_caster<std::unique_ptr<T>>::cast( cast(std::unique_ptr<T const, D> &&src, return_value_policy policy, handle parent) {
std::unique_ptr<T>(const_cast<T *>(src.release())), // Const2Mutbl return smart_holder_type_caster<std::unique_ptr<T, D>>::cast(
std::unique_ptr<T, D>(const_cast<T *>(src.release())), // Const2Mutbl
policy, policy,
parent); parent);
} }
template <typename> template <typename>
using cast_op_type = std::unique_ptr<T const>; using cast_op_type = std::unique_ptr<T const, D>;
operator std::unique_ptr<T const>() { return this->loaded_as_unique_ptr(); } operator std::unique_ptr<T const, D>() { return this->template loaded_as_unique_ptr<D>(); }
}; };
#ifndef PYBIND11_USE_SMART_HOLDER_AS_DEFAULT #ifndef PYBIND11_USE_SMART_HOLDER_AS_DEFAULT
@ -1568,12 +1575,12 @@ struct smart_holder_type_caster<std::unique_ptr<T const>> : smart_holder_type_ca
template <> \ template <> \
class type_caster<std::shared_ptr<T const>> \ class type_caster<std::shared_ptr<T const>> \
: public smart_holder_type_caster<std::shared_ptr<T const>> {}; \ : public smart_holder_type_caster<std::shared_ptr<T const>> {}; \
template <> \ template <typename D> \
class type_caster<std::unique_ptr<T>> : public smart_holder_type_caster<std::unique_ptr<T>> { \ class type_caster<std::unique_ptr<T, D>> \
}; \ : public smart_holder_type_caster<std::unique_ptr<T, D>> {}; \
template <> \ template <typename D> \
class type_caster<std::unique_ptr<T const>> \ class type_caster<std::unique_ptr<T const, D>> \
: public smart_holder_type_caster<std::unique_ptr<T const>> {}; \ : public smart_holder_type_caster<std::unique_ptr<T const, D>> {}; \
} \ } \
} }
#endif #endif
@ -1595,12 +1602,13 @@ template <typename T>
class type_caster<std::shared_ptr<T const>> class type_caster<std::shared_ptr<T const>>
: public smart_holder_type_caster<std::shared_ptr<T const>> {}; : public smart_holder_type_caster<std::shared_ptr<T const>> {};
template <typename T> template <typename T, typename D>
class type_caster<std::unique_ptr<T>> : public smart_holder_type_caster<std::unique_ptr<T>> {}; class type_caster<std::unique_ptr<T, D>>
: public smart_holder_type_caster<std::unique_ptr<T, D>> {};
template <typename T> template <typename T, typename D>
class type_caster<std::unique_ptr<T const>> class type_caster<std::unique_ptr<T const, D>>
: public smart_holder_type_caster<std::unique_ptr<T const>> {}; : public smart_holder_type_caster<std::unique_ptr<T const, D>> {};
#define PYBIND11_SMART_HOLDER_TYPE_CASTERS(T) #define PYBIND11_SMART_HOLDER_TYPE_CASTERS(T)

1
include/pybind11/smart_holder.h
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@ -4,7 +4,6 @@
#pragma once #pragma once
#include "detail/smart_holder_type_casters.h"
#include "pybind11.h" #include "pybind11.h"
PYBIND11_NAMESPACE_BEGIN(PYBIND11_NAMESPACE) PYBIND11_NAMESPACE_BEGIN(PYBIND11_NAMESPACE)