| Safe Haskell | None |
|---|---|
| Language | Haskell2010 |
GHC.Iface.Recomp
Description
Module for detecting if recompilation is required
Synopsis
- checkOldIface :: HscEnv -> ModSummary -> SourceModified -> Maybe ModIface -> IO (RecompileRequired, Maybe ModIface)
- data RecompileRequired
- recompileRequired :: RecompileRequired -> Bool
- addFingerprints :: HscEnv -> PartialModIface -> IO ModIface
Documentation
checkOldIface :: HscEnv -> ModSummary -> SourceModified -> Maybe ModIface -> IO (RecompileRequired, Maybe ModIface) Source #
Top level function to check if the version of an old interface file is equivalent to the current source file the user asked us to compile. If the same, we can avoid recompilation. We return a tuple where the first element is a bool saying if we should recompile the object file and the second is maybe the interface file, where Nothing means to rebuild the interface file and not use the existing one.
data RecompileRequired Source #
Constructors
| UpToDate | everything is up to date, recompilation is not required |
| MustCompile | The .hs file has been touched, or the .o/.hi file does not exist |
| RecompBecause String | The .o/.hi files are up to date, but something else has changed to force recompilation; the String says what (one-line summary) |
Instances
| Eq RecompileRequired # | |
Defined in GHC.Iface.Recomp Methods (==) :: RecompileRequired -> RecompileRequired -> Bool # (/=) :: RecompileRequired -> RecompileRequired -> Bool # | |
| Semigroup RecompileRequired # | |
Defined in GHC.Iface.Recomp Methods (<>) :: RecompileRequired -> RecompileRequired -> RecompileRequired Source # sconcat :: NonEmpty RecompileRequired -> RecompileRequired Source # stimes :: Integral b => b -> RecompileRequired -> RecompileRequired Source # | |
| Monoid RecompileRequired # | |
Defined in GHC.Iface.Recomp Methods mempty :: RecompileRequired Source # mappend :: RecompileRequired -> RecompileRequired -> RecompileRequired Source # mconcat :: [RecompileRequired] -> RecompileRequired Source # | |
addFingerprints :: HscEnv -> PartialModIface -> IO ModIface Source #
Add fingerprints for top-level declarations to a ModIface.
See Note [Fingerprinting IfaceDecls]