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49 lines
783 B
C++
49 lines
783 B
C++
/*
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* LuaReference.cpp, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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#include "StdInc.h"
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#include "LuaReference.h"
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VCMI_LIB_NAMESPACE_BEGIN
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namespace scripting
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{
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LuaReference::LuaReference(lua_State * L)
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: l(L),
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doCleanup(true)
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{
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key = luaL_ref(l, LUA_REGISTRYINDEX);
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}
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LuaReference::LuaReference(LuaReference && other) noexcept
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: l(other.l),
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key(other.key),
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doCleanup(false)
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{
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std::swap(doCleanup, other.doCleanup);
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}
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LuaReference::~LuaReference()
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{
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if(doCleanup)
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luaL_unref(l, LUA_REGISTRYINDEX, key);
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}
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void LuaReference::push()
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{
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lua_rawgeti(l, LUA_REGISTRYINDEX, key);
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}
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}
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VCMI_LIB_NAMESPACE_END
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