Index - O
| OK | HsLua, HsLua.Core, HsLua.Core.Types | 
| openbase | HsLua, HsLua.Core | 
| opendebug | HsLua, HsLua.Core | 
| openio | HsLua, HsLua.Core | 
| openlibs | HsLua, HsLua.Core | 
| openmath | HsLua, HsLua.Core | 
| openos | HsLua, HsLua.Core | 
| openpackage | HsLua, HsLua.Core | 
| openstring | HsLua, HsLua.Core | 
| opentable | HsLua, HsLua.Core | 
| Operation | HsLua, HsLua.ObjectOrientation, HsLua.Packaging, HsLua.Packaging.Module | 
| operation | HsLua, HsLua.Packaging | 
| opt | HsLua, HsLua.Packaging, HsLua.Packaging.Function | 
| Optional | |
| 1 (Type/Class) | HsLua, HsLua.Class.Util | 
| 2 (Data Constructor) | HsLua, HsLua.Class.Util | 
| optionalParameter | HsLua, HsLua.Packaging, HsLua.Packaging.Function |