moduleNameSlashes,
mkModuleName,
mkModuleNameFS,
+ stableModuleNameCmp,
-- * The PackageId type
PackageId,
packageIdFS,
stringToPackageId,
packageIdString,
+ stablePackageIdCmp,
-- * Wired-in PackageIds
primPackageId,
put_ bh (ModuleName fs) = put_ bh fs
get bh = do fs <- get bh; return (ModuleName fs)
+stableModuleNameCmp :: ModuleName -> ModuleName -> Ordering
+-- Compare lexically, not by unique
+stableModuleNameCmp n1 n2 = moduleNameFS n1 `compare` moduleNameFS n2
+
pprModuleName :: ModuleName -> SDoc
pprModuleName (ModuleName nm) =
getPprStyle $ \ sty ->
moduleNameSlashes :: ModuleName -> String
moduleNameSlashes = dots_to_slashes . moduleNameString
where dots_to_slashes = map (\c -> if c == '.' then pathSeparator else c)
-
\end{code}
%************************************************************************
-- not be stable from run to run of the compiler.
stableModuleCmp :: Module -> Module -> Ordering
stableModuleCmp (Module p1 n1) (Module p2 n2)
- = (packageIdFS p1 `compare` packageIdFS p2) `thenCmp`
- (moduleNameFS n1 `compare` moduleNameFS n2)
+ = (p1 `stablePackageIdCmp` p2) `thenCmp`
+ (n1 `stableModuleNameCmp` n2)
mkModule :: PackageId -> ModuleName -> Module
mkModule = Module
instance Ord PackageId where
nm1 `compare` nm2 = getUnique nm1 `compare` getUnique nm2
+stablePackageIdCmp :: PackageId -> PackageId -> Ordering
+stablePackageIdCmp p1 p2 = packageIdFS p1 `compare` packageIdFS p2
+
instance Outputable PackageId where
ppr pid = text (packageIdString pid)