This is the main module to be included by code using the Labeled IO (LIO) library. This module exports the core library (documented in LIO.Core), with support for labeled values (documented in LIO.Labeled) and privileges (documented in LIO.Privs).
Certain symbols in the lio library, particularly those in
LIO.Exception, use the same names as their
IO equivalents in the
system libraries. Hence main modules that mostly include
and only need to invoke
LIO code should import LIO.Run (or
LIO.DCLabel) to avoid polluting their namespaces.
Most code will need to use a particular label format, which needs to be imported separately. For instance:
import LIO -- Import your favorite label format: import LIO.DCLabel
WARNING: For security, untrusted code must always be compiled with
-fpackage-trust SafeHaskell flags. See
http://hackage.haskell.org/trac/ghc/wiki/SafeHaskell for more
details on the guarantees provided by SafeHaskell.