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Move must_be_member_function_pointer to the detail namespace.

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Ralf W. Grosse-Kunstleve 2024-07-14 21:39:33 -07:00
parent ff3693f1bb
commit 0f874deee2
1 changed files with 17 additions and 14 deletions
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31
include/pybind11/pybind11.h
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@ -1586,6 +1586,8 @@ auto method_adaptor(Return (Class::*pmf)(Args...) const) -> Return (Derived::*)(
return pmf;
}
PYBIND11_NAMESPACE_BEGIN(detail)
// Helper for the property_cpp_function static member functions below.
// The only purpose of these functions is to support .def_readonly & .def_readwrite.
// In this context, the PM template parameter is certain to be a Pointer to a Member.
@ -1593,8 +1595,9 @@ auto method_adaptor(Return (Class::*pmf)(Args...) const) -> Return (Derived::*)(
// against accidents. As a side-effect, it also explains why the syntactical overhead for
// perfect forwarding is not needed.
template <typename PM>
using must_be_member_function_pointer
= detail::enable_if_t<std::is_member_pointer<PM>::value, int>;
using must_be_member_function_pointer = enable_if_t<std::is_member_pointer<PM>::value, int>;
PYBIND11_NAMESPACE_END(detail)
// Note that property_cpp_function is intentionally in the main pybind11 namespace,
// because user-defined specializations could be useful.
@ -1607,17 +1610,17 @@ using must_be_member_function_pointer
// This implementation works as-is (and safely) for smart_holder std::shared_ptr members.
template <typename T, typename D, typename SFINAE = void>
struct property_cpp_function {
template <typename PM, must_be_member_function_pointer<PM> = 0>
template <typename PM, detail::must_be_member_function_pointer<PM> = 0>
static cpp_function readonly(PM pm, const handle &hdl) {
return cpp_function([pm](const T &c) -> const D & { return c.*pm; }, is_method(hdl));
}
template <typename PM, must_be_member_function_pointer<PM> = 0>
template <typename PM, detail::must_be_member_function_pointer<PM> = 0>
static cpp_function read(PM pm, const handle &hdl) {
return readonly(pm, hdl);
}
template <typename PM, must_be_member_function_pointer<PM> = 0>
template <typename PM, detail::must_be_member_function_pointer<PM> = 0>
static cpp_function write(PM pm, const handle &hdl) {
return cpp_function([pm](T &c, const D &value) { c.*pm = value; }, is_method(hdl));
}
@ -1656,7 +1659,7 @@ struct property_cpp_function<
using drp = typename std::remove_pointer<D>::type;
template <typename PM, must_be_member_function_pointer<PM> = 0>
template <typename PM, detail::must_be_member_function_pointer<PM> = 0>
static cpp_function readonly(PM pm, const handle &hdl) {
detail::type_info *tinfo = detail::get_type_info(typeid(T), /*throw_if_missing=*/true);
if (tinfo->default_holder) {
@ -1672,12 +1675,12 @@ struct property_cpp_function<
return cpp_function([pm](const T &c) -> const D & { return c.*pm; }, is_method(hdl));
}
template <typename PM, must_be_member_function_pointer<PM> = 0>
template <typename PM, detail::must_be_member_function_pointer<PM> = 0>
static cpp_function read(PM pm, const handle &hdl) {
return readonly(pm, hdl);
}
template <typename PM, must_be_member_function_pointer<PM> = 0>
template <typename PM, detail::must_be_member_function_pointer<PM> = 0>
static cpp_function write(PM pm, const handle &hdl) {
detail::type_info *tinfo = detail::get_type_info(typeid(T), /*throw_if_missing=*/true);
if (tinfo->default_holder) {
@ -1703,7 +1706,7 @@ struct property_cpp_function<T,
detail::is_instantiation<std::shared_ptr, D>>,
detail::both_t_and_d_use_type_caster_base<T, D>>::value>> {
template <typename PM, must_be_member_function_pointer<PM> = 0>
template <typename PM, detail::must_be_member_function_pointer<PM> = 0>
static cpp_function readonly(PM pm, const handle &hdl) {
detail::type_info *tinfo = detail::get_type_info(typeid(T), /*throw_if_missing=*/true);
if (tinfo->default_holder) {
@ -1719,7 +1722,7 @@ struct property_cpp_function<T,
return cpp_function([pm](const T &c) -> const D & { return c.*pm; }, is_method(hdl));
}
template <typename PM, must_be_member_function_pointer<PM> = 0>
template <typename PM, detail::must_be_member_function_pointer<PM> = 0>
static cpp_function read(PM pm, const handle &hdl) {
detail::type_info *tinfo = detail::get_type_info(typeid(T), /*throw_if_missing=*/true);
if (tinfo->default_holder) {
@ -1734,7 +1737,7 @@ struct property_cpp_function<T,
return cpp_function([pm](const T &c) -> const D & { return c.*pm; }, is_method(hdl));
}
template <typename PM, must_be_member_function_pointer<PM> = 0>
template <typename PM, detail::must_be_member_function_pointer<PM> = 0>
static cpp_function write(PM pm, const handle &hdl) {
detail::type_info *tinfo = detail::get_type_info(typeid(T), /*throw_if_missing=*/true);
if (tinfo->default_holder) {
@ -1759,14 +1762,14 @@ struct property_cpp_function<
detail::is_instantiation<std::unique_ptr, D>,
detail::both_t_and_d_use_type_caster_base<T, typename D::element_type>>::value>> {
template <typename PM, must_be_member_function_pointer<PM> = 0>
template <typename PM, detail::must_be_member_function_pointer<PM> = 0>
static cpp_function readonly(PM, const handle &) {
static_assert(!detail::is_instantiation<std::unique_ptr, D>::value,
"def_readonly cannot be used for std::unique_ptr members.");
return cpp_function{}; // Unreachable.
}
template <typename PM, must_be_member_function_pointer<PM> = 0>
template <typename PM, detail::must_be_member_function_pointer<PM> = 0>
static cpp_function read(PM pm, const handle &hdl) {
detail::type_info *tinfo = detail::get_type_info(typeid(T), /*throw_if_missing=*/true);
if (tinfo->default_holder) {
@ -1781,7 +1784,7 @@ struct property_cpp_function<
return cpp_function([pm](const T &c) -> const D & { return c.*pm; }, is_method(hdl));
}
template <typename PM, must_be_member_function_pointer<PM> = 0>
template <typename PM, detail::must_be_member_function_pointer<PM> = 0>
static cpp_function write(PM pm, const handle &hdl) {
return cpp_function([pm](T &c, D &&value) { c.*pm = std::move(value); }, is_method(hdl));
}