-- Hoogle documentation, generated by Haddock
-- See Hoogle, http://www.haskell.org/hoogle/


-- | Dependency resolution for package management
--   
--   A library for resolving dependencies; uses a topological sort to
--   construct a build plan and then allows choice between all compatible
--   plans.
@package dependency
@version 0.1.0.2

module Data.Dependency

-- | Heuristics:
--   
--   <ol>
--   <li>Always use a newer version when possible</li>
--   <li>Obey constraints</li>
--   <li>Specify an error for circular dependencies</li>
--   <li>Specify an error for overconstrained builds</li>
--   <li>Specify an error if a package is not present.</li>
--   </ol>
--   
--   This doesn't do any package resolution beyond versioning.
resolveDependencies :: PackageSet Dependency -> [[Dependency]] -> Maybe [[Dependency]]
isPresent :: PackageSet Version -> Dependency -> Bool
buildSequence :: [Dependency] -> [[Dependency]]
asGraph :: [Dependency] -> (Graph, Vertex -> Dependency)
data Dependency
Dependency :: String -> Constraint Version -> [String] -> Dependency
[_libName] :: Dependency -> String
[_libConstraint] :: Dependency -> Constraint Version
[_libDependencies] :: Dependency -> [String]
newtype PackageSet a
PackageSet :: (Map String (Set a)) -> PackageSet a
newtype Version
Version :: [Integer] -> Version