mirror of
https://github.com/pocketpy/pocketpy
synced 2025-10-20 19:40:18 +00:00
2773b9993e
* lazy cpp_function and capsule. * remove retv. * remove type_map. * remove object pool from initialize. * support dynamic library. * remove vector_bool. * remove unused header. * fix export name. * fix test name. * some fix * some fix * ... --------- Co-authored-by: blueloveTH <blueloveth@foxmail.com>
670 lines
23 KiB
C++
670 lines
23 KiB
C++
#pragma once
|
|
|
|
#include "cast.h"
|
|
|
|
namespace pkbind {
|
|
|
|
namespace impl {
|
|
|
|
template <typename... Args>
|
|
struct constructor {};
|
|
|
|
template <typename Fn, typename Args = callable_args_t<Fn>>
|
|
struct factory;
|
|
|
|
template <typename Fn, typename... Args>
|
|
struct factory<Fn, std::tuple<Args...>> {
|
|
Fn fn;
|
|
|
|
auto make() {
|
|
using Self = callable_return_t<Fn>;
|
|
return [fn = std::move(fn)](Self* self, Args... args) {
|
|
new (self) Self(fn(args...));
|
|
};
|
|
}
|
|
};
|
|
|
|
} // namespace impl
|
|
|
|
template <typename... Args>
|
|
impl::constructor<Args...> init() {
|
|
return {};
|
|
}
|
|
|
|
template <typename Fn>
|
|
impl::factory<Fn> init(Fn&& fn) {
|
|
return {std::forward<Fn>(fn)};
|
|
}
|
|
|
|
struct arg_with_default {
|
|
const char* name;
|
|
object value;
|
|
};
|
|
|
|
struct arg {
|
|
const char* name;
|
|
|
|
arg(const char* name) : name(name) {}
|
|
|
|
template <typename T>
|
|
arg_with_default operator= (T&& value) {
|
|
return arg_with_default{name, cast(std::forward<T>(value))};
|
|
}
|
|
};
|
|
|
|
struct kwargs_proxy {
|
|
handle value;
|
|
};
|
|
|
|
struct args_proxy {
|
|
handle value;
|
|
|
|
kwargs_proxy operator* () { return kwargs_proxy{value}; }
|
|
};
|
|
|
|
template <typename Derived>
|
|
args_proxy interface<Derived>::operator* () const {
|
|
return args_proxy{handle(this->ptr())};
|
|
}
|
|
|
|
template <typename Derived>
|
|
template <return_value_policy policy, typename... Args>
|
|
object interface<Derived>::operator() (Args&&... args) const {
|
|
py_push(ptr());
|
|
py_pushnil();
|
|
|
|
int argc = 0;
|
|
int kwargsc = 0;
|
|
|
|
auto foreach = [&](auto&& argument) {
|
|
using type = std::decay_t<decltype(argument)>;
|
|
if constexpr(std::is_constructible_v<handle, type>) {
|
|
argc += 1;
|
|
py_push(handle(argument).ptr());
|
|
} else if constexpr(std::is_same_v<type, arg_with_default>) {
|
|
kwargsc += 1;
|
|
arg_with_default& default_ = argument;
|
|
py_pushname(name(default_.name).index());
|
|
py_push(default_.value.ptr());
|
|
} else if constexpr(std::is_same_v<type, args_proxy>) {
|
|
tuple args = argument.value.template cast<tuple>();
|
|
for(auto arg: args) {
|
|
argc += 1;
|
|
py_push(arg.ptr());
|
|
}
|
|
} else if constexpr(std::is_same_v<type, kwargs_proxy>) {
|
|
dict kwargs = argument.value.template cast<dict>();
|
|
kwargs.apply([&](handle key, handle value) {
|
|
kwargsc += 1;
|
|
name name = key.cast<std::string_view>();
|
|
py_pushname(name.index());
|
|
py_push(value.ptr());
|
|
});
|
|
} else {
|
|
argc += 1;
|
|
py_push(pkbind::cast(std::forward<decltype(argument)>(argument), policy).ptr());
|
|
}
|
|
};
|
|
|
|
(foreach(std::forward<Args>(args)), ...);
|
|
|
|
raise_call<py_vectorcall>(argc, kwargsc);
|
|
|
|
return object::from_ret();
|
|
}
|
|
|
|
class function : public object {
|
|
PKBIND_TYPE_IMPL(object, function, tp_function);
|
|
};
|
|
|
|
namespace impl {
|
|
|
|
template <typename Callable,
|
|
typename Extra,
|
|
typename Args = callable_args_t<Callable>,
|
|
typename IndexSequence = std::make_index_sequence<std::tuple_size_v<Args>>>
|
|
struct template_parser;
|
|
|
|
class function_record {
|
|
template <typename C, typename E, typename A, typename I>
|
|
friend struct template_parser;
|
|
|
|
using destructor_t = void (*)(function_record*);
|
|
using wrapper_t = bool (*)(function_record&,
|
|
std::vector<handle>&,
|
|
std::vector<std::pair<handle, handle>>&,
|
|
bool convert,
|
|
handle parent);
|
|
|
|
struct arguments_t {
|
|
std::vector<std::string> names;
|
|
std::vector<object> defaults;
|
|
};
|
|
|
|
public:
|
|
template <typename Fn, typename... Extras>
|
|
function_record(Fn&& f, const Extras&... extras) {
|
|
using Callable = std::decay_t<Fn>;
|
|
|
|
if constexpr(std::is_trivially_copyable_v<Callable> && sizeof(Callable) <= sizeof(buffer)) {
|
|
// if the callable object is trivially copyable and the size is less than 16 bytes,
|
|
// store it in the buffer
|
|
new (buffer) auto(std::forward<Fn>(f));
|
|
destructor = [](function_record* self) {
|
|
reinterpret_cast<Callable*>(self->buffer)->~Callable();
|
|
};
|
|
} else {
|
|
// otherwise, store it in the heap
|
|
data = new auto(std::forward<Fn>(f));
|
|
destructor = [](function_record* self) {
|
|
delete static_cast<Callable*>(self->data);
|
|
};
|
|
}
|
|
|
|
using Parser = template_parser<Callable, std::tuple<Extras...>>;
|
|
Parser::initialize(*this, extras...);
|
|
wrapper = Parser::call;
|
|
}
|
|
|
|
function_record(const function_record&) = delete;
|
|
|
|
function_record& operator= (const function_record&) = delete;
|
|
|
|
function_record(function_record&& other) noexcept {
|
|
std::memcpy(this, &other, sizeof(function_record));
|
|
std::memset(&other, 0, sizeof(function_record));
|
|
}
|
|
|
|
function_record& operator= (function_record&&) = delete;
|
|
|
|
~function_record() {
|
|
if(destructor) { destructor(this); }
|
|
if(arguments) { delete arguments; }
|
|
if(next) { delete next; }
|
|
if(signature) { delete[] signature; }
|
|
}
|
|
|
|
void append(function_record* record) {
|
|
function_record* p = this;
|
|
while(p->next) {
|
|
p = p->next;
|
|
}
|
|
p->next = record;
|
|
}
|
|
|
|
template <typename T>
|
|
T& as() {
|
|
if constexpr(std::is_trivially_copyable_v<T> && sizeof(T) <= sizeof(buffer)) {
|
|
return *reinterpret_cast<T*>(buffer);
|
|
} else {
|
|
return *static_cast<T*>(data);
|
|
}
|
|
}
|
|
|
|
static function_record& from(handle h) {
|
|
auto slot = py_getslot(h.ptr(), 0);
|
|
return *static_cast<function_record*>(py_touserdata(slot));
|
|
}
|
|
|
|
void operator() (int argc, handle stack) {
|
|
function_record* p = this;
|
|
|
|
bool has_self = argc == 3;
|
|
std::vector<handle> args;
|
|
handle self = py_offset(stack.ptr(), 0);
|
|
if(has_self) { args.push_back(self); }
|
|
|
|
auto tuple = py_offset(stack.ptr(), 0 + has_self);
|
|
for(int i = 0; i < py_tuple_len(tuple); ++i) {
|
|
args.push_back(py_tuple_getitem(tuple, i));
|
|
}
|
|
|
|
auto dict = steal<pkbind::dict>(py_offset(stack.ptr(), 1 + has_self));
|
|
|
|
std::vector<std::pair<handle, handle>> kwargs;
|
|
dict.apply([&](handle key, handle value) {
|
|
kwargs.emplace_back(key, value);
|
|
});
|
|
|
|
// foreach function record and call the function with not convert
|
|
while(p != nullptr) {
|
|
auto result = p->wrapper(*p, args, kwargs, false, self);
|
|
if(result) { return; }
|
|
p = p->next;
|
|
}
|
|
|
|
p = this;
|
|
// foreach function record and call the function with convert
|
|
while(p != nullptr) {
|
|
auto result = p->wrapper(*p, args, kwargs, true, self);
|
|
if(result) { return; }
|
|
p = p->next;
|
|
}
|
|
|
|
std::string msg = "no matching function found, function signature:\n";
|
|
p = this;
|
|
while(p != nullptr) {
|
|
msg += " ";
|
|
msg += p->signature;
|
|
msg += "\n";
|
|
p = p->next;
|
|
}
|
|
throw std::runtime_error(msg);
|
|
}
|
|
|
|
private:
|
|
union {
|
|
void* data;
|
|
char buffer[16];
|
|
};
|
|
|
|
wrapper_t wrapper = nullptr;
|
|
function_record* next = nullptr;
|
|
arguments_t* arguments = nullptr;
|
|
destructor_t destructor = nullptr;
|
|
const char* signature = nullptr;
|
|
return_value_policy policy = return_value_policy::automatic;
|
|
};
|
|
|
|
template <typename Fn, std::size_t... Is, typename... Args>
|
|
void invoke(Fn&& fn,
|
|
std::index_sequence<Is...>,
|
|
std::tuple<type_caster<Args>...>& casters,
|
|
return_value_policy policy,
|
|
handle parent) {
|
|
using underlying_type = std::decay_t<Fn>;
|
|
using return_type = callable_return_t<underlying_type>;
|
|
|
|
constexpr bool is_void = std::is_void_v<return_type>;
|
|
constexpr bool is_member_function_pointer = std::is_member_function_pointer_v<underlying_type>;
|
|
|
|
if constexpr(is_member_function_pointer) {
|
|
// helper function to unpack the arguments to call the member pointer
|
|
auto unpack = [&](class_type_t<underlying_type>& self, auto&... args) {
|
|
return (self.*fn)(args...);
|
|
};
|
|
|
|
if constexpr(!is_void) {
|
|
py_assign(py_retval(),
|
|
pkbind::cast(unpack(std::get<Is>(casters).value()...), policy, parent).ptr());
|
|
} else {
|
|
unpack(std::get<Is>(casters).value()...);
|
|
py_newnone(py_retval());
|
|
}
|
|
} else {
|
|
if constexpr(!is_void) {
|
|
py_assign(py_retval(),
|
|
pkbind::cast(fn(std::get<Is>(casters).value()...), policy, parent).ptr());
|
|
} else {
|
|
fn(std::get<Is>(casters).value()...);
|
|
py_newnone(py_retval());
|
|
}
|
|
}
|
|
}
|
|
|
|
template <typename Callable, typename... Extras, typename... Args, std::size_t... Is>
|
|
struct template_parser<Callable,
|
|
std::tuple<Extras...>,
|
|
std::tuple<Args...>,
|
|
std::index_sequence<Is...>> {
|
|
using types = type_list<Args...>;
|
|
|
|
/// count of the Callable parameters.
|
|
constexpr inline static auto argc = types::size;
|
|
|
|
// count the number of py::args and py::kwargs
|
|
constexpr inline static auto args_count = types::template count<pkbind::args>;
|
|
constexpr inline static auto kwargs_count = types::template count<pkbind::kwargs>;
|
|
static_assert(args_count <= 1, "py::args can occur at most once");
|
|
static_assert(kwargs_count <= 1, "py::kwargs can occur at most once");
|
|
|
|
/// find the position of py::args and py::kwargs
|
|
constexpr inline static auto args_pos = types::template find<pkbind::args>;
|
|
constexpr inline static auto kwargs_pos = types::template find<pkbind::kwargs>;
|
|
|
|
// FIXME: temporarily, args and kwargs must be at the end of the arguments list
|
|
/// if have py::kwargs, it must be at the end of the arguments list.
|
|
static_assert(kwargs_count == 0 || kwargs_pos == argc - 1,
|
|
"py::kwargs must be the last parameter");
|
|
/// if have py::args, it must be before py::kwargs or at the end of the arguments list.
|
|
static_assert(args_count == 0 || args_pos == kwargs_pos - 1 || args_pos == argc - 1,
|
|
"py::args must be before py::kwargs or at the end of the parameter list");
|
|
|
|
using extras = type_list<Extras...>;
|
|
|
|
// count the number of py::doc and py::return_value_policy
|
|
constexpr inline static auto doc_count = extras::template count<const char*>;
|
|
constexpr inline static auto policy_count = extras::template count<pkbind::return_value_policy>;
|
|
static_assert(doc_count <= 1, "doc can occur at most once");
|
|
static_assert(policy_count <= 1, "return_value_policy can occur at most once");
|
|
|
|
constexpr inline static auto policy_pos = extras::template find<pkbind::return_value_policy>;
|
|
|
|
constexpr inline static auto last_arg_without_default_pos =
|
|
types::template find_last<pkbind::arg>;
|
|
constexpr inline static auto first_arg_with_default_pos =
|
|
types::template find<pkbind::arg_with_default>;
|
|
static_assert(last_arg_without_default_pos < first_arg_with_default_pos ||
|
|
first_arg_with_default_pos == -1,
|
|
"parameter with default value must be after parameter without default value");
|
|
|
|
/// count of named parameters(explicit with name).
|
|
constexpr inline static auto named_only_argc = extras::template count<pkbind::arg>;
|
|
constexpr inline static auto named_default_argc =
|
|
extras::template count<pkbind::arg_with_default>;
|
|
constexpr inline static auto named_argc = named_only_argc + named_default_argc;
|
|
|
|
/// count of normal parameters(which are not py::args or py::kwargs).
|
|
constexpr inline static auto normal_argc = argc - (args_pos != -1) - (kwargs_pos != -1);
|
|
|
|
/// all parameters must either have no names or all must have names.
|
|
static_assert(named_argc == 0 || named_argc == normal_argc,
|
|
"all parameters must either have no names or all must have names.");
|
|
|
|
static void initialize(function_record& record, const Extras&... extras) {
|
|
auto extras_tuple = std::make_tuple(extras...);
|
|
constexpr static bool has_named_args = (named_argc > 0);
|
|
if constexpr(policy_pos != -1) { record.policy = std::get<policy_pos>(extras_tuple); }
|
|
|
|
// TODO: set others
|
|
|
|
// set default arguments
|
|
if constexpr(has_named_args) {
|
|
record.arguments = new function_record::arguments_t();
|
|
|
|
auto add_arguments = [&](const auto& default_) {
|
|
using type = remove_cvref_t<decltype(default_)>;
|
|
if constexpr(std::is_same_v<arg, type>) {
|
|
auto& arguments = *record.arguments;
|
|
arguments.names.emplace_back(default_.name);
|
|
arguments.defaults.emplace_back();
|
|
} else if constexpr(std::is_same_v<arg_with_default, type>) {
|
|
auto& arguments = *record.arguments;
|
|
arguments.names.emplace_back(default_.name);
|
|
arguments.defaults.emplace_back(std::move(default_.value));
|
|
}
|
|
};
|
|
|
|
(add_arguments(extras), ...);
|
|
}
|
|
|
|
// set signature
|
|
{
|
|
std::string sig = "(";
|
|
std::size_t index = 0;
|
|
auto append = [&](auto _t) {
|
|
using T = remove_cvref_t<typename decltype(_t)::type>;
|
|
if constexpr(std::is_same_v<T, args>) {
|
|
sig += "*args";
|
|
} else if constexpr(std::is_same_v<T, kwargs>) {
|
|
sig += "**kwargs";
|
|
} else if constexpr(has_named_args) {
|
|
sig += record.arguments->names[index].c_str();
|
|
sig += ": ";
|
|
sig += type_info::of<T>().name;
|
|
if(!record.arguments->defaults[index].empty()) {
|
|
sig += " = ";
|
|
sig += record.arguments->defaults[index]
|
|
.attr("__repr__")()
|
|
.cast<std::string_view>();
|
|
}
|
|
} else {
|
|
sig += "_: ";
|
|
sig += type_info::of<T>().name;
|
|
}
|
|
if(index + 1 < argc) { sig += ", "; }
|
|
index++;
|
|
};
|
|
(append(type_identity<Args>{}), ...);
|
|
sig += ")";
|
|
char* buffer = new char[sig.size() + 1];
|
|
std::memcpy(buffer, sig.data(), sig.size());
|
|
buffer[sig.size()] = '\0';
|
|
record.signature = buffer;
|
|
}
|
|
}
|
|
|
|
/// try to call a C++ function(store in function_record) with the arguments which are from
|
|
/// Python. if success, return true, otherwise return false.
|
|
static bool call(function_record& record,
|
|
std::vector<handle>& args,
|
|
std::vector<std::pair<handle, handle>>& kwargs,
|
|
bool convert,
|
|
handle parent) {
|
|
// first, we try to load arguments into the stack.
|
|
// use argc + 1 to avoid compile error when argc is 0.
|
|
handle stack[argc + 1] = {};
|
|
|
|
// if have default arguments, load them
|
|
if constexpr(named_default_argc > 0) {
|
|
auto& defaults = record.arguments->defaults;
|
|
for(std::size_t i = named_only_argc; i < named_argc; ++i) {
|
|
stack[i] = defaults[i];
|
|
}
|
|
}
|
|
|
|
// load arguments from call arguments
|
|
if(args.size() > normal_argc) {
|
|
if constexpr(args_pos == -1) { return false; }
|
|
}
|
|
|
|
for(std::size_t i = 0; i < std::min(normal_argc, (int)args.size()); ++i) {
|
|
stack[i] = args[i];
|
|
}
|
|
|
|
object repack_args;
|
|
// pack the args
|
|
if constexpr(args_pos != -1) {
|
|
const auto n =
|
|
static_cast<int>(args.size() > normal_argc ? args.size() - normal_argc : 0);
|
|
auto pack = tuple(n);
|
|
for(int i = 0; i < n; ++i) {
|
|
pack[i] = args[normal_argc + i];
|
|
}
|
|
repack_args = std::move(pack);
|
|
stack[args_pos] = repack_args;
|
|
}
|
|
|
|
// pack the kwargs
|
|
int index = 0;
|
|
if constexpr(named_argc != 0) {
|
|
int arg_index = 0;
|
|
while(arg_index < named_argc && index < kwargs.size()) {
|
|
const auto name = kwargs[index].first;
|
|
const auto value = kwargs[index].second;
|
|
if(name.cast<std::string_view>() == record.arguments->names[arg_index]) {
|
|
stack[arg_index] = value;
|
|
index += 1;
|
|
}
|
|
arg_index += 1;
|
|
}
|
|
}
|
|
|
|
object repacked_kwargs;
|
|
if constexpr(kwargs_pos != -1) {
|
|
auto pack = dict();
|
|
while(index < kwargs.size()) {
|
|
pack[kwargs[index].first] = kwargs[index].second;
|
|
index += 1;
|
|
}
|
|
repacked_kwargs = std::move(pack);
|
|
stack[kwargs_pos] = repacked_kwargs;
|
|
}
|
|
|
|
// check if all the arguments are valid
|
|
for(std::size_t i = 0; i < argc; ++i) {
|
|
if(!stack[i]) { return false; }
|
|
}
|
|
|
|
// ok, all the arguments are valid, call the function
|
|
std::tuple<type_caster<Args>...> casters;
|
|
|
|
if(((std::get<Is>(casters).load(stack[Is], convert)) && ...)) {
|
|
invoke(record.as<Callable>(),
|
|
std::index_sequence<Is...>{},
|
|
casters,
|
|
record.policy,
|
|
parent);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
};
|
|
|
|
} // namespace impl
|
|
|
|
class cpp_function : public function {
|
|
PKBIND_TYPE_IMPL(function, cpp_function, tp_function);
|
|
|
|
inline static lazy<py_Type> tp_function_record = +[](py_Type& type) {
|
|
type = py_newtype("function_record", tp_object, nullptr, [](void* data) {
|
|
static_cast<impl::function_record*>(data)->~function_record();
|
|
});
|
|
};
|
|
|
|
static bool is_function_record(handle h) {
|
|
if(isinstance<function>(h)) {
|
|
auto slot = py_getslot(h.ptr(), 0);
|
|
if(slot) { return py_typeof(slot) == tp_function_record; }
|
|
}
|
|
return false;
|
|
}
|
|
|
|
template <typename Fn, typename... Extras>
|
|
cpp_function(bool is_method, const char* name, Fn&& fn, const Extras&... extras) :
|
|
function(alloc_t{}) {
|
|
// bind the function
|
|
std::string sig = name;
|
|
sig += is_method ? "(self, *args, **kwargs)" : "(*args, **kwargs)";
|
|
|
|
py_newfunction(m_ptr, sig.c_str(), call, nullptr, 1);
|
|
auto slot = py_getslot(m_ptr, 0);
|
|
void* data = py_newobject(slot, tp_function_record, 0, sizeof(impl::function_record));
|
|
new (data) impl::function_record(std::forward<Fn>(fn), extras...);
|
|
}
|
|
|
|
private:
|
|
static bool call(int argc, py_Ref stack) {
|
|
handle func = py_inspect_currentfunction();
|
|
auto data = py_touserdata(py_getslot(func.ptr(), 0));
|
|
auto& record = *static_cast<impl::function_record*>(data);
|
|
try {
|
|
record(argc, stack);
|
|
return true;
|
|
} catch(std::domain_error& e) {
|
|
py_exception(tp_ValueError, e.what());
|
|
} catch(std::invalid_argument& e) {
|
|
py_exception(tp_ValueError, e.what());
|
|
} catch(std::length_error& e) {
|
|
py_exception(tp_ValueError, e.what());
|
|
} catch(std::out_of_range& e) {
|
|
py_exception(tp_IndexError, e.what());
|
|
} catch(std::range_error& e) {
|
|
py_exception(tp_ValueError, e.what());
|
|
} catch(stop_iteration&) { StopIteration(); } catch(index_error& e) {
|
|
py_exception(tp_IndexError, e.what());
|
|
} catch(key_error& e) { py_exception(tp_KeyError, e.what()); } catch(value_error& e) {
|
|
py_exception(tp_ValueError, e.what());
|
|
} catch(type_error& e) { py_exception(tp_TypeError, e.what()); } catch(import_error& e) {
|
|
py_exception(tp_ImportError, e.what());
|
|
} catch(attribute_error& e) {
|
|
py_exception(tp_AttributeError, e.what());
|
|
} catch(std::exception& e) { py_exception(tp_RuntimeError, e.what()); }
|
|
return false;
|
|
};
|
|
};
|
|
|
|
class property : public object {
|
|
PKBIND_TYPE_IMPL(object, property, tp_property);
|
|
|
|
property(handle getter, handle setter = none()) :
|
|
object(type::of<property>()(getter, setter)) {}
|
|
};
|
|
|
|
class staticmethod : public object {
|
|
PKBIND_TYPE_IMPL(object, staticmethod, tp_staticmethod);
|
|
|
|
staticmethod(handle method) : object(type::of<staticmethod>()(method)) {}
|
|
};
|
|
|
|
namespace impl {
|
|
|
|
template <bool is_method, bool is_static, typename Fn, typename... Extras>
|
|
void bind_function(handle obj, const char* name_, Fn&& fn, const Extras&... extras) {
|
|
constexpr bool has_named_args =
|
|
((std::is_same_v<Extras, arg> || std::is_same_v<Extras, arg_with_default>) || ...);
|
|
auto name = py_name(name_);
|
|
auto func = py_getdict(obj.ptr(), name);
|
|
|
|
if(func && cpp_function::is_function_record(func)) {
|
|
auto slot = py_getslot(func, 0);
|
|
auto& record = *static_cast<function_record*>(py_touserdata(slot));
|
|
if constexpr(has_named_args && is_method) {
|
|
record.append(new function_record(std::forward<Fn>(fn), arg("self"), extras...));
|
|
} else {
|
|
record.append(new function_record(std::forward<Fn>(fn), extras...));
|
|
}
|
|
} else {
|
|
if constexpr(is_static) {
|
|
py_setdict(
|
|
obj.ptr(),
|
|
name,
|
|
staticmethod(cpp_function(is_method, name_, std::forward<Fn>(fn), extras...).ptr())
|
|
.ptr());
|
|
} else {
|
|
if constexpr(has_named_args && is_method) {
|
|
py_setdict(
|
|
obj.ptr(),
|
|
name,
|
|
cpp_function(is_method, name_, std::forward<Fn>(fn), arg("self"), extras...)
|
|
.ptr());
|
|
} else {
|
|
py_setdict(obj.ptr(),
|
|
name,
|
|
cpp_function(is_method, name_, std::forward<Fn>(fn), extras...).ptr());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
template <typename Getter, typename Setter, typename... Extras>
|
|
void bind_property(handle obj,
|
|
const char* name,
|
|
Getter&& getter_,
|
|
Setter&& setter_,
|
|
const Extras&... extras) {
|
|
if constexpr(std::is_same_v<std::decay_t<Setter>, std::nullptr_t>) {
|
|
cpp_function getter(true,
|
|
name,
|
|
std::forward<Getter>(getter_),
|
|
return_value_policy::reference_internal,
|
|
extras...);
|
|
property prop(getter.ptr());
|
|
setattr(obj, name, prop);
|
|
} else {
|
|
cpp_function getter(true,
|
|
name,
|
|
std::forward<Getter>(getter_),
|
|
return_value_policy::reference_internal,
|
|
extras...);
|
|
cpp_function setter(true,
|
|
name,
|
|
std::forward<Setter>(setter_),
|
|
return_value_policy::reference_internal,
|
|
extras...);
|
|
property prop(getter.ptr(), setter.ptr());
|
|
setattr(obj, name, prop);
|
|
}
|
|
}
|
|
|
|
} // namespace impl
|
|
|
|
inline dict::dict(std::initializer_list<arg_with_default> args) : dict() {
|
|
for(auto& arg: args) {
|
|
this->operator[] (arg.name) = arg.value;
|
|
}
|
|
}
|
|
|
|
} // namespace pkbind
|