diff options
Diffstat (limited to 'compiler/GHC/Types/Var.hs')
| -rw-r--r-- | compiler/GHC/Types/Var.hs | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/compiler/GHC/Types/Var.hs b/compiler/GHC/Types/Var.hs index 397bc7ed77..4bb0b27ac8 100644 --- a/compiler/GHC/Types/Var.hs +++ b/compiler/GHC/Types/Var.hs @@ -68,8 +68,9 @@ module GHC.Types.Var ( -- * ArgFlags ArgFlag(Invisible,Required,Specified,Inferred), - isVisibleArgFlag, isInvisibleArgFlag, sameVis, AnonArgFlag(..), Specificity(..), + isVisibleArgFlag, isInvisibleArgFlag, isInferredArgFlag, + sameVis, -- * TyVar's VarBndr(..), TyCoVarBinder, TyVarBinder, InvisTVBinder, ReqTVBinder, @@ -468,12 +469,17 @@ pattern Specified = Invisible SpecifiedSpec -- | Does this 'ArgFlag' classify an argument that is written in Haskell? isVisibleArgFlag :: ArgFlag -> Bool -isVisibleArgFlag Required = True -isVisibleArgFlag _ = False +isVisibleArgFlag af = not (isInvisibleArgFlag af) -- | Does this 'ArgFlag' classify an argument that is not written in Haskell? isInvisibleArgFlag :: ArgFlag -> Bool -isInvisibleArgFlag = not . isVisibleArgFlag +isInvisibleArgFlag (Invisible {}) = True +isInvisibleArgFlag Required = False + +isInferredArgFlag :: ArgFlag -> Bool +-- More restrictive than isInvisibleArgFlag +isInferredArgFlag (Invisible InferredSpec) = True +isInferredArgFlag _ = False -- | Do these denote the same level of visibility? 'Required' -- arguments are visible, others are not. So this function |