diff options
Diffstat (limited to 'compiler/basicTypes/VarEnv.hs')
| -rw-r--r-- | compiler/basicTypes/VarEnv.hs | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/compiler/basicTypes/VarEnv.hs b/compiler/basicTypes/VarEnv.hs index f8ab574bc5..2c50e8dcbf 100644 --- a/compiler/basicTypes/VarEnv.hs +++ b/compiler/basicTypes/VarEnv.hs @@ -34,7 +34,7 @@ module VarEnv ( extendDVarEnvList, lookupDVarEnv, elemDVarEnv, isEmptyDVarEnv, foldDVarEnv, - mapDVarEnv, + mapDVarEnv, filterDVarEnv, modifyDVarEnv, alterDVarEnv, plusDVarEnv, plusDVarEnv_C, @@ -557,6 +557,9 @@ foldDVarEnv = foldUDFM mapDVarEnv :: (a -> b) -> DVarEnv a -> DVarEnv b mapDVarEnv = mapUDFM +filterDVarEnv :: (a -> Bool) -> DVarEnv a -> DVarEnv a +filterDVarEnv = filterUDFM + alterDVarEnv :: (Maybe a -> Maybe a) -> DVarEnv a -> Var -> DVarEnv a alterDVarEnv = alterUDFM |