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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#include "LuaScream.h"
#include "LuaInclude.h"
#include "LuaHashString.h"
#include "System/Log/ILog.h"
/******************************************************************************/
/******************************************************************************/
LuaScream::LuaScream()
{
}
LuaScream::~LuaScream()
{
}
/******************************************************************************/
/******************************************************************************/
bool LuaScream::PushEntries(lua_State* L)
{
CreateMetatable(L);
#define REGISTER_LUA_CFUNC(x) \
lua_pushstring(L, #x); \
lua_pushcfunction(L, x); \
lua_rawset(L, -3)
REGISTER_LUA_CFUNC(CreateScream);
return true;
}
/******************************************************************************/
/******************************************************************************/
bool LuaScream::CreateMetatable(lua_State* L)
{
luaL_newmetatable(L, "Scream");
HSTR_PUSH_CFUNC(L, "__gc", meta_gc);
HSTR_PUSH_CFUNC(L, "__index", meta_index);
HSTR_PUSH_CFUNC(L, "__newindex", meta_newindex);
lua_pop(L, 1);
return true;
}
int LuaScream::meta_gc(lua_State* L)
{
int* refPtr = (int*)luaL_checkudata(L, 1, "Scream");
lua_rawgeti(L, LUA_REGISTRYINDEX, *refPtr);
if (lua_isfunction(L, -1)) {
const int error = lua_pcall(L, 0, 0, 0);
if (error != 0) {
LOG_L(L_ERROR, "Scream: error(%i) = %s",
error, lua_tostring(L, -1));
lua_pop(L, 1);
}
}
else if (lua_isstring(L, -1)) {
LOG("SCREAM: %s", lua_tostring(L, -1));
}
luaL_unref(L, LUA_REGISTRYINDEX, *refPtr);
return 0;
}
int LuaScream::meta_index(lua_State* L)
{
int* refPtr = (int*)luaL_checkudata(L, 1, "Scream");
const string key = luaL_checkstring(L, 2);
if (key == "func") {
lua_rawgeti(L, LUA_REGISTRYINDEX, *refPtr);
return 1;
}
return 0;
}
int LuaScream::meta_newindex(lua_State* L)
{
int* refPtr = (int*)luaL_checkudata(L, 1, "Scream");
const string key = luaL_checkstring(L, 2);
if (key == "func") {
lua_pushvalue(L, 3);
lua_rawseti(L, LUA_REGISTRYINDEX, *refPtr);
}
return 0;
}
/******************************************************************************/
/******************************************************************************/
int LuaScream::CreateScream(lua_State* L)
{
int* refPtr = (int*)lua_newuserdata(L, sizeof(int));
luaL_getmetatable(L, "Scream");
lua_setmetatable(L, -2);
lua_pushvalue(L, 1);
*refPtr = luaL_ref(L, LUA_REGISTRYINDEX);
return 1;
}
/******************************************************************************/
/******************************************************************************/
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