Copyright	© 2017-2020 Albert Krewinkel
License	MIT
Maintainer	Albert Krewinkel <tarleb+hslua@zeitkraut.de>
Stability	beta
Portability	ForeignFunctionInterface
Safe Haskell	None
Language	Haskell2010

Foreign.Lua.Raw.Userdata

Description

Bindings to HsLua-specific functions used to push Haskell values as userdata.

Synopsis

hslua_fromuserdata :: State -> StackIndex -> CString -> IO (Maybe a)
hslua_newhsuserdata :: State -> a -> IO ()
hslua_newudmetatable :: State -> CString -> IO LuaBool

Documentation

hslua_fromuserdata Source #

Arguments

:: State
-> StackIndex	userdata index
-> CString	name
-> IO (Maybe a)

Retrieves a Haskell object from userdata at the given index. The userdata must have the given name.

hslua_newhsuserdata :: State -> a -> IO () Source #

Creates a new userdata wrapping the given Haskell object.

hslua_newudmetatable Source #

Arguments

:: State	Lua state
-> CString	Userdata name (__name)
-> IO LuaBool	True iff new metatable was created.

Creates and registers a new metatable for a userdata-wrapped Haskell value; checks whether a metatable of that name has been registered yet and uses the registered table if possible.