mirror of
https://github.com/ThePhD/sol2.git
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fcdb471167
add coroutine tests for new xmove copy and move constructors cry tears because Lua does not kill the variables on the thread before killing the thread
104 lines
3.8 KiB
C++
104 lines
3.8 KiB
C++
// The MIT License (MIT)
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// Copyright (c) 2013-2017 Rapptz, ThePhD and contributors
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// Permission is hereby granted, free of charge, to any person obtaining a copy of
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// this software and associated documentation files (the "Software"), to deal in
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// the Software without restriction, including without limitation the rights to
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// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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// the Software, and to permit persons to whom the Software is furnished to do so,
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// subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#ifndef SOL_STATE_HPP
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#define SOL_STATE_HPP
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#include "state_view.hpp"
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#include "thread.hpp"
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namespace sol {
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namespace detail {
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inline int default_at_panic(lua_State* L) {
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#ifdef SOL_NO_EXCEPTIONS
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(void)L;
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return -1;
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#else
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size_t messagesize;
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const char* message = lua_tolstring(L, -1, &messagesize);
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if (message) {
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std::string err(message, messagesize);
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lua_settop(L, 0);
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throw error(err);
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}
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lua_settop(L, 0);
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throw error(std::string("An unexpected error occurred and forced the lua state to call atpanic"));
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#endif
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}
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inline int default_traceback_error_handler(lua_State*L) {
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using namespace sol;
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std::string msg = "An unknown error has triggered the default error handler";
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optional<string_view> maybetopmsg = stack::check_get<string_view>(L, 1);
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if (maybetopmsg) {
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const string_view& topmsg = maybetopmsg.value();
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msg.assign(topmsg.data(), topmsg.size());
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}
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luaL_traceback(L, L, msg.c_str(), 1);
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optional<string_view> maybetraceback = stack::check_get<string_view>(L, -1);
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if (maybetraceback) {
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const string_view& traceback = maybetraceback.value();
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msg.assign(traceback.data(), traceback.size());
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}
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return stack::push(L, msg);
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}
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} // detail
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class state : private std::unique_ptr<lua_State, void(*)(lua_State*)>, public state_view {
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private:
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typedef std::unique_ptr<lua_State, void(*)(lua_State*)> unique_base;
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public:
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state(lua_CFunction panic = detail::default_at_panic) : unique_base(luaL_newstate(), lua_close),
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state_view(unique_base::get()) {
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set_panic(panic);
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lua_CFunction f = c_call<decltype(&detail::default_traceback_error_handler), &detail::default_traceback_error_handler>;
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protected_function::set_default_handler(sol::object(lua_state(), in_place, f));
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stack::register_main_thread(unique_base::get());
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stack::luajit_exception_handler(unique_base::get());
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}
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state(lua_CFunction panic, lua_Alloc alfunc, void* alpointer = nullptr) : unique_base(lua_newstate(alfunc, alpointer), lua_close),
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state_view(unique_base::get()) {
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set_panic(panic);
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lua_CFunction f = c_call<decltype(&detail::default_traceback_error_handler), &detail::default_traceback_error_handler>;
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protected_function::set_default_handler(sol::object(lua_state(), in_place, f));
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stack::register_main_thread(unique_base::get());
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stack::luajit_exception_handler(unique_base::get());
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}
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state(const state&) = delete;
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state(state&&) = default;
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state& operator=(const state&) = delete;
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state& operator=(state&& that) {
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state_view::operator=(std::move(that));
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unique_base::operator=(std::move(that));
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return *this;
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}
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using state_view::get;
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~state() {}
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};
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} // sol
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#endif // SOL_STATE_HPP
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