63 lines
1.4 KiB
C++
63 lines
1.4 KiB
C++
// https://github.com/vinniefalco/LuaBridge
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//
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// Copyright 2020, Dmitry Tarakanov
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// SPDX-License-Identifier: MIT
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#pragma once
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#include <LuaBridge/detail/Stack.h>
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#include <array>
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namespace luabridge {
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template<class T, std::size_t s>
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struct Stack<std::array<T, s>>
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{
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static void push(lua_State* L, std::array<T, s> const& array)
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{
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lua_createtable(L, static_cast<int>(s), 0);
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for (std::size_t i = 0; i < s; ++i)
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{
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lua_pushinteger(L, static_cast<lua_Integer>(i + 1));
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Stack<T>::push(L, array[i]);
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lua_settable(L, -3);
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}
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}
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static std::array<T, s> get(lua_State* L, int index)
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{
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if (!lua_istable(L, index))
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{
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luaL_error(L, "#%d argument must be table", index);
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}
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std::size_t const tableSize = static_cast<std::size_t>(get_length(L, index));
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if (tableSize != s)
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{
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luaL_error(L, "array size must be %d ", s);
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}
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std::array<T, s> array;
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int const absindex = lua_absindex(L, index);
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lua_pushnil(L);
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int arrayIndex = 0;
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while (lua_next(L, absindex) != 0)
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{
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array[arrayIndex] = Stack<T>::get(L, -1);
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lua_pop(L, 1);
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++arrayIndex;
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}
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return array;
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}
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static bool isInstance(lua_State* L, int index)
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{
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return lua_istable(L, index) && get_length(L, index) == s;
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}
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};
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} // namespace luabridge
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