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This package is intended to ease the transition from GHC 7.6.3- to GHC 7.8+
by providing a backward-compatible role annotation syntax. The module
Language.Haskell.RoleAnnots exports backward-compatible declarations
usable to assign stricter roles to declarations. Proper role annotations
are preferred, but these work, too.
The module Language.Haskell.RoleAnnots.Check provides a way to check
that a datatype has a set of desired roles. This might be suitable for
use in a testsuite.
See the module documentation for details.
Note that this package works only with GHC 7.4 and up, because it depends
on the -XPolyKinds extension. If you need backward compatibility before
7.4, then please look at the source code and adapt the definitions to the
kinds of the variables in your program.
