34 lines
1017 B
C++
34 lines
1017 B
C++
#include "luastack.hpp"
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#include "globaldb.hpp"
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LuaDefine(global, "globalname", "get a table where global data can be stored") {
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LuaArg globalname;
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LuaRet globaltab;
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LuaVar globaldb;
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LuaStack LS(L, globalname, globaltab, globaldb);
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// Get a pointer to the globaldb.
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LS.rawget(globaldb, LuaRegistry, "globaldb");
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if (!LS.istable(globaldb)) {
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luaL_error(L, "globaldb is not enabled");
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}
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LS.checkstring(globalname);
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// Get the globaltab from the globaldb, sanity check it.
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LS.rawget(globaltab, globaldb, globalname);
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if (LS.istable(globaltab)) {
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return LS.result();
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} else if (!LS.isnil(globaltab)) {
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luaL_error(L, "%s is not a global", LS.ckstring(globalname).c_str());
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}
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// Create a new globaltab and store it in the globaldb.
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LS.newtable(globaltab);
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LS.rawset(globaldb, globalname, globaltab);
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LS.rawset(globaltab, "__global", globalname);
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LS.settabletype(globaltab, LUA_TT_GLOBALDB);
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return LS.result();
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}
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