X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2FbasicTypes%2FNameSet.lhs;h=bef9e928fda04721e208bb05be703a18c0398a21;hp=a20d8abb010de352efb6b1a1ae8b2b5cff4d7074;hb=c648345e3d82c0c40333bfd8ddea2633e21b08dc;hpb=93b6e53272695a66d97bd2672dd366797176d5c5 diff --git a/compiler/basicTypes/NameSet.lhs b/compiler/basicTypes/NameSet.lhs index a20d8ab..bef9e92 100644 --- a/compiler/basicTypes/NameSet.lhs +++ b/compiler/basicTypes/NameSet.lhs @@ -181,7 +181,7 @@ duDefs dus = foldr get emptyNameSet dus get (Just d1, _u1) d2 = d1 `unionNameSets` d2 allUses :: DefUses -> Uses --- ^ Just like 'allUses', but 'Defs' are not eliminated from the 'Uses' returned +-- ^ Just like 'duUses', but 'Defs' are not eliminated from the 'Uses' returned allUses dus = foldr get emptyNameSet dus where get (_d1, u1) u2 = u1 `unionNameSets` u2 @@ -189,8 +189,7 @@ allUses dus = foldr get emptyNameSet dus duUses :: DefUses -> Uses -- ^ Collect all 'Uses', regardless of whether the group is itself used, -- but remove 'Defs' on the way -duUses dus - = foldr get emptyNameSet dus +duUses dus = foldr get emptyNameSet dus where get (Nothing, rhs_uses) uses = rhs_uses `unionNameSets` uses get (Just defs, rhs_uses) uses = (rhs_uses `unionNameSets` uses)