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Diffstat (limited to 'compiler/hsSyn/HsTypes.hs')
| -rw-r--r-- | compiler/hsSyn/HsTypes.hs | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/compiler/hsSyn/HsTypes.hs b/compiler/hsSyn/HsTypes.hs index b186b36abb..130e39efab 100644 --- a/compiler/hsSyn/HsTypes.hs +++ b/compiler/hsSyn/HsTypes.hs @@ -62,6 +62,7 @@ module HsTypes ( mkHsOpTy, mkHsAppTy, mkHsAppTys, mkHsAppKindTy, ignoreParens, hsSigType, hsSigWcType, hsLTyVarBndrToType, hsLTyVarBndrsToTypes, + hsConDetailsArgs, -- Printing pprHsType, pprHsForAll, pprHsForAllExtra, pprHsExplicitForAll, @@ -912,6 +913,14 @@ instance (Outputable arg, Outputable rec) ppr (RecCon rec) = text "RecCon:" <+> ppr rec ppr (InfixCon l r) = text "InfixCon:" <+> ppr [l, r] +hsConDetailsArgs :: + HsConDetails (LHsType a) (Located [LConDeclField a]) + -> [LHsType a] +hsConDetailsArgs details = case details of + InfixCon a b -> [a,b] + PrefixCon xs -> xs + RecCon r -> map (cd_fld_type . unLoc) (unLoc r) + {- Note [ConDeclField passs] ~~~~~~~~~~~~~~~~~~~~~~~~~ |