I'm looking for the equivalent of getfenv(1) in the C API, to find
out in what environment a function that in turn calls C was called.
say I have a function:
function test()
print("my calling environment", getfenv(1))
cprintenv()
end
cprintenv is a lua_CFunction:
int cprintenv(lua_State * L)
{
printf("LUA_ENVIRONINDEX %p\n", lua_topointer(L, LUA_ENVIRONINDEX));
}
now if I call in C:
lua_getglobal(L, "test");
// create a new environment table
lua_newtable(L);
printf("new environment table %p\n", lua_topointer(L,
LUA_ENVIRONINDEX));
lua_pushstring(L, "__index");
lua_pushvalue(L, LUA_GLOBALSINDEX);
lua_settable(L, -3);
// setfenv(test)
lua_setfenv(L, -2);
// call it
lua_pcall(L, 0, 0, 0);
The result is that the current environment as stated in C
(LUA_ENVIRONINDEX) is the global table, not the current environment
(the new table applied to the function test). If this is expected
behaviour, then how can I get the current environment in which a
lua_CFunction was called, the equivalent of getfenv(1) in the C API?
Thanks.