| Safe Haskell | None |
|---|---|
| Language | Haskell2010 |
Data.Dependency
- resolveDependencies :: [[Dependency]] -> PackageSet -> Maybe [[(String, Version)]]
- isPresent :: PackageSet -> Dependency -> Bool
- buildSequence :: [Dependency] -> [[Dependency]]
- asGraph :: [Dependency] -> (Graph, Vertex -> Dependency)
- data Dependency = Dependency {
- _libName :: String
- _libConstraint :: Constraint Version
- _libDependencies :: [String]
- newtype PackageSet = PackageSet (Map String (Set Version))
- newtype Version = Version [Integer]
Functions
resolveDependencies :: [[Dependency]] -> PackageSet -> Maybe [[(String, Version)]] Source #
Heuristics:
- Always use a newer version when possible
- Obey constraints
- Specify an error for circular dependencies
- Specify an error for overconstrained builds
- Specify an error if a package is not present.
This doesn't do any package resolution beyond versioning.
isPresent :: PackageSet -> Dependency -> Bool Source #
buildSequence :: [Dependency] -> [[Dependency]] Source #
asGraph :: [Dependency] -> (Graph, Vertex -> Dependency) Source #
Types
data Dependency Source #
Constructors
| Dependency | |
Fields
| |
Instances