wrenpp/src/vm_fun.cpp
King_DuckZ eadd25b827 Foreign function callbacks now receive a ModuleAndName parameter too.
This commit breaks the ARM64 version, I will fix it next.

Lots going on here. DynafuncMaker got updated to store strings
to back the ModuleAndName objects that get hardcoded in the
assembly glue function.
ModuleAndName is not a typedef to a tuple anymore, because I
discovered that tuples suck. They get always pushed on the stack
when passed as parameter, instead the new implementation gets
passed into 2 registers being it a standard layout type.

dhandy::bt::string got updated so it can be used as a literal
value for non-type template parameters, which allowed for a
really easy to use `wren::MN<>` helper. Code now fully requires
c++20.
2022-05-17 01:06:36 +02:00

92 lines
2.9 KiB
C++

/* Copyright 2020-2022, Michele Santullo
* This file is part of wrenpp.
*
* Wrenpp is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Wrenpp is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with wrenpp. If not, see <http://www.gnu.org/licenses/>.
*/
#include "wrenpp/vm_fun.hpp"
#include <cassert>
#include <iterator>
#include <utility>
namespace wren {
namespace detail {
} //namespace detail
void set (VM& vm, int slot_num, const char* beg, const char* end) {
vm.set_slot_bytes(slot_num, beg, std::distance(beg, end));
}
std::string_view slot_string_view (VM& vm, int slot_num) {
assert(SlotType::String == vm.slot_type(slot_num));
auto ptr = vm.slot_bytes(slot_num);
return {ptr.first, static_cast<std::size_t>(ptr.second)};
}
template<> const char* get<const char*> (VM& vm, int slot_num) {
return vm.slot_string(slot_num);
}
template <> double get<double> (VM& vm, int slot_num) {
return vm.slot_double(slot_num);
}
template <> bool get<bool> (VM& vm, int slot_num) {
return vm.slot_bool(slot_num);
}
template <> std::pair<const char*, int> get<std::pair<const char*,int>> (VM& vm, int slot_num) {
return vm.slot_bytes(slot_num);
}
template<> int get<int> (VM& vm, int slot_num) {
return static_cast<int>(vm.slot_double(slot_num));
}
template<> std::size_t get<std::size_t> (VM& vm, int slot_num) {
return static_cast<std::size_t>(vm.slot_double(slot_num));
}
template<> std::string get<std::string> (VM& vm, int slot_num) {
return {vm.slot_string(slot_num)};
}
template <> std::string_view get<std::string_view> (VM& vm, int slot_num) {
auto arr = get<std::pair<const char*, int>>(vm, slot_num);
return std::string_view{arr.first, static_cast<std::size_t>(arr.second)};
}
template <> std::vector<char> get<std::vector<char>> (VM& vm, int slot_num) {
auto arr = get<std::pair<const char*, int>>(vm, slot_num);
return std::vector<char>{arr.first, arr.first + arr.second};
}
void variable(VM& vm, ModuleAndName mod_and_name, int slot) {
vm.variable_or_throw(mod_and_name.module_name_char(), mod_and_name.class_name_char(), slot);
}
void variable (VM& vm, const Handle& handle, int slot) {
vm.set_slot_handle(handle, slot);
}
void variable_ensure_slot(VM& vm, ModuleAndName mod_and_name, int slot) {
vm.ensure_slots(1);
variable(vm, mod_and_name, slot);
}
void variable_ensure_slot (VM& vm, const Handle& handle, int slot) {
vm.ensure_slots(1);
variable(vm, handle, slot);
}
} //namespace wren