mirror of
https://github.com/pocketpy/pocketpy
synced 2025-10-26 14:30:17 +00:00
257 lines
8.5 KiB
C++
257 lines
8.5 KiB
C++
#pragma once
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#include "kernel.h"
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namespace pybind11 {
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class handle;
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class object;
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class attr_accessor;
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class item_accessor;
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class iterator;
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class str;
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class bytes;
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class iterable;
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class tuple;
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class dict;
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class list;
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class set;
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class function;
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class module;
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class type;
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class bool_;
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class int_;
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class float_;
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class str;
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class bytes;
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template <typename T>
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T& _builtin_cast(const handle& obj);
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template <typename T>
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T reinterpret_borrow(const handle& h);
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template <typename T>
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T reinterpret_steal(const handle& h);
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class handle {
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protected:
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pkpy::PyVar m_ptr = nullptr;
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mutable int* ref_count = nullptr;
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public:
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handle() = default;
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handle(const handle& h) = default;
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handle& operator= (const handle& other) = default;
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handle(pkpy::PyVar ptr) : m_ptr(ptr) {}
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pkpy::PyVar ptr() const { return m_ptr; }
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int reference_count() const { return ref_count == nullptr ? 0 : *ref_count; }
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const handle& inc_ref() const {
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PK_DEBUG_ASSERT(m_ptr != nullptr);
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if(ref_count == nullptr) {
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auto iter = _ref_counts_map->find(m_ptr);
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if(iter == _ref_counts_map->end()) {
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ref_count = ::new int(1);
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_ref_counts_map->insert({m_ptr, ref_count});
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} else {
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ref_count = iter->second;
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*ref_count += 1;
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}
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} else {
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*ref_count += 1;
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}
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return *this;
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}
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const handle& dec_ref() const {
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PK_DEBUG_ASSERT(m_ptr != nullptr);
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PK_DEBUG_ASSERT(ref_count != nullptr);
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*ref_count -= 1;
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try {
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if(*ref_count == 0) {
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_ref_counts_map->erase(m_ptr);
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::delete ref_count;
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ref_count = nullptr;
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}
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} catch(std::exception& e) { std::cerr << "Error: " << e.what() << std::endl; }
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return *this;
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}
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public:
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template <typename T>
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T cast() const;
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explicit operator bool () const { return m_ptr.operator bool (); }
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bool is(const handle& other) const { return m_ptr == other.m_ptr; }
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bool is_none() const { return m_ptr == vm->None; }
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bool in(const handle& other) const {
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return pkpy::py_cast<bool>(vm, vm->call(vm->py_op("contains"), other.m_ptr, m_ptr));
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}
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bool contains(const handle& other) const {
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return pkpy::py_cast<bool>(vm, vm->call(vm->py_op("contains"), m_ptr, other.m_ptr));
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}
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iterator begin() const;
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iterator end() const;
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str doc() const;
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attr_accessor attr(const char* name) const;
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attr_accessor attr(const handle& name) const;
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attr_accessor attr(object&& name) const;
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item_accessor operator[] (int64_t key) const;
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item_accessor operator[] (const char* key) const;
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item_accessor operator[] (const handle& key) const;
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item_accessor operator[] (object&& key) const;
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object operator- () const;
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object operator~() const;
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template <return_value_policy policy = return_value_policy::automatic, typename... Args>
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object operator() (Args&&... args) const;
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private:
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friend object operator+ (const handle& lhs, const handle& rhs);
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friend object operator- (const handle& lhs, const handle& rhs);
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friend object operator* (const handle& lhs, const handle& rhs);
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friend object operator% (const handle& lhs, const handle& rhs);
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friend object operator/ (const handle& lhs, const handle& rhs);
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friend object operator| (const handle& lhs, const handle& rhs);
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friend object operator& (const handle& lhs, const handle& rhs);
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friend object operator^ (const handle& lhs, const handle& rhs);
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friend object operator<< (const handle& lhs, const handle& rhs);
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friend object operator>> (const handle& lhs, const handle& rhs);
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friend object operator+= (const handle& lhs, const handle& rhs);
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friend object operator-= (const handle& lhs, const handle& rhs);
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friend object operator*= (const handle& lhs, const handle& rhs);
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friend object operator/= (const handle& lhs, const handle& rhs);
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friend object operator%= (const handle& lhs, const handle& rhs);
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friend object operator|= (const handle& lhs, const handle& rhs);
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friend object operator&= (const handle& lhs, const handle& rhs);
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friend object operator^= (const handle& lhs, const handle& rhs);
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friend object operator<<= (const handle& lhs, const handle& rhs);
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friend object operator>>= (const handle& lhs, const handle& rhs);
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friend object operator== (const handle& lhs, const handle& rhs);
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friend object operator!= (const handle& lhs, const handle& rhs);
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friend object operator< (const handle& lhs, const handle& rhs);
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friend object operator> (const handle& lhs, const handle& rhs);
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friend object operator<= (const handle& lhs, const handle& rhs);
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friend object operator>= (const handle& lhs, const handle& rhs);
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template <typename T>
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friend T& _builtin_cast(const handle& obj) {
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// FIXME: 2.0 does not use Py_<T> anymore
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static_assert(!std::is_reference_v<T>, "T must not be a reference type.");
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return obj.ptr().obj_get<T>();
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}
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};
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static_assert(std::is_trivially_copyable_v<handle>);
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class object : public handle {
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public:
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object(const object& other) : handle(other) { inc_ref(); }
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object(object&& other) noexcept : handle(other) {
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other.m_ptr = nullptr;
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other.ref_count = nullptr;
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}
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object& operator= (const object& other) {
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if(this != &other) {
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dec_ref();
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m_ptr = other.m_ptr;
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ref_count = other.ref_count;
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inc_ref();
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}
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return *this;
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}
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object& operator= (object&& other) noexcept {
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if(this != &other) {
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dec_ref();
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m_ptr = other.m_ptr;
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ref_count = other.ref_count;
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other.m_ptr = nullptr;
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other.ref_count = nullptr;
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}
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return *this;
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}
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~object() {
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if(m_ptr != nullptr) {
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dec_ref();
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}
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}
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protected:
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object(const handle& h, bool borrow) : handle(h) {
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if(borrow) {
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inc_ref();
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}
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}
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template <typename T>
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friend T reinterpret_borrow(const handle& h) {
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return {h, true};
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}
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template <typename T>
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friend T reinterpret_steal(const handle& h) {
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return {h, false};
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}
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};
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inline void setattr(const handle& obj, const handle& name, const handle& value);
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inline void setitem(const handle& obj, const handle& key, const handle& value);
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#define PYBIND11_BINARY_OPERATOR(OP, NAME) \
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inline object operator OP (const handle& lhs, const handle& rhs) { \
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return reinterpret_borrow<object>(vm->call(vm->py_op(NAME), lhs.m_ptr, rhs.m_ptr)); \
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}
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PYBIND11_BINARY_OPERATOR(+, "add");
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PYBIND11_BINARY_OPERATOR(-, "sub");
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PYBIND11_BINARY_OPERATOR(*, "mul");
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PYBIND11_BINARY_OPERATOR(/, "truediv");
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PYBIND11_BINARY_OPERATOR(%, "mod");
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PYBIND11_BINARY_OPERATOR(|, "or_");
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PYBIND11_BINARY_OPERATOR(&, "and_");
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PYBIND11_BINARY_OPERATOR(^, "xor");
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PYBIND11_BINARY_OPERATOR(<<, "lshift");
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PYBIND11_BINARY_OPERATOR(>>, "rshift");
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PYBIND11_BINARY_OPERATOR(+=, "iadd");
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PYBIND11_BINARY_OPERATOR(-=, "isub");
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PYBIND11_BINARY_OPERATOR(*=, "imul");
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PYBIND11_BINARY_OPERATOR(/=, "itruediv");
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PYBIND11_BINARY_OPERATOR(%=, "imod");
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PYBIND11_BINARY_OPERATOR(|=, "ior");
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PYBIND11_BINARY_OPERATOR(&=, "iand");
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PYBIND11_BINARY_OPERATOR(^=, "ixor");
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PYBIND11_BINARY_OPERATOR(<<=, "ilshift");
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PYBIND11_BINARY_OPERATOR(>>=, "irshift");
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PYBIND11_BINARY_OPERATOR(==, "eq");
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PYBIND11_BINARY_OPERATOR(!=, "ne");
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PYBIND11_BINARY_OPERATOR(<, "lt");
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PYBIND11_BINARY_OPERATOR(>, "gt");
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PYBIND11_BINARY_OPERATOR(<=, "le");
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PYBIND11_BINARY_OPERATOR(>=, "ge");
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#undef PYBIND11_BINARY_OPERATOR
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} // namespace pybind11
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