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-// The MIT License (MIT)
-
-// Copyright (c) 2013-2016 Rapptz, ThePhD and contributors
-
-// Permission is hereby granted, free of charge, to any person obtaining a copy of
-// this software and associated documentation files (the "Software"), to deal in
-// the Software without restriction, including without limitation the rights to
-// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
-// the Software, and to permit persons to whom the Software is furnished to do so,
-// subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in all
-// copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
-// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
-// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
-// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-#ifndef SOL_STACK_GUARD_HPP
-#define SOL_STACK_GUARD_HPP
-
-#include "compatibility/version.hpp"
-#include "error.hpp"
-#include <functional>
-
-namespace sol {
- namespace detail {
- inline void stack_fail(int, int) {
-#ifndef SOL_NO_EXCEPTIONS
- throw error(detail::direct_error, "imbalanced stack after operation finish");
-#else
- // Lol, what do you want, an error printout? :3c
- // There's no sane default here. The right way would be C-style abort(), and that's not acceptable, so
- // hopefully someone will register their own stack_fail thing for the `fx` parameter of stack_guard.
-#endif // No Exceptions
- }
- } // detail
-
- struct stack_guard {
- lua_State* L;
- int top;
- std::function<void(int, int)> on_mismatch;
-
- stack_guard(lua_State* L) : stack_guard(L, lua_gettop(L)) {}
- stack_guard(lua_State* L, int top, std::function<void(int, int)> fx = detail::stack_fail) : L(L), top(top), on_mismatch(std::move(fx)) {}
- bool check_stack(int modification = 0) const {
- int bottom = lua_gettop(L) + modification;
- if (top == bottom) {
- return true;
- }
- on_mismatch(top, bottom);
- return false;
- }
- ~stack_guard() {
- check_stack();
- }
- };
-} // sol
-
-#endif // SOL_STACK_GUARD_HPP