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Fix constraint handling for lazy patterns
[ghc-hetmet.git]
/
compiler
/
types
/
Coercion.lhs
diff --git
a/compiler/types/Coercion.lhs
b/compiler/types/Coercion.lhs
index
672deae
..
e17d0b0
100644
(file)
--- a/
compiler/types/Coercion.lhs
+++ b/
compiler/types/Coercion.lhs
@@
-39,7
+39,7
@@
module Coercion (
import TypeRep
import Type
import TyCon
import TypeRep
import Type
import TyCon
-import Var hiding (isCoVar)
+import Var
import Name
import OccName
import PrelNames
import Name
import OccName
import PrelNames
@@
-91,9
+91,6
@@
splitCoercionKind_maybe co | Just co' <- kindView co = splitCoercionKind_maybe c
splitCoercionKind_maybe (PredTy (EqPred ty1 ty2)) = Just (ty1, ty2)
splitCoercionKind_maybe other = Nothing
splitCoercionKind_maybe (PredTy (EqPred ty1 ty2)) = Just (ty1, ty2)
splitCoercionKind_maybe other = Nothing
-isCoVar :: Var -> Bool
-isCoVar tv = isTyVar tv && isCoercionKind (tyVarKind tv)
-
type Coercion = Type
type CoercionKind = Kind -- A CoercionKind is always of form (ty1 :=: ty2)
type Coercion = Type
type CoercionKind = Kind -- A CoercionKind is always of form (ty1 :=: ty2)