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Diffstat (limited to 'compiler/typecheck/TcTyClsDecls.hs')
| -rw-r--r-- | compiler/typecheck/TcTyClsDecls.hs | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/compiler/typecheck/TcTyClsDecls.hs b/compiler/typecheck/TcTyClsDecls.hs index d6f4148abb..b265315c04 100644 --- a/compiler/typecheck/TcTyClsDecls.hs +++ b/compiler/typecheck/TcTyClsDecls.hs @@ -830,7 +830,8 @@ swizzleTcTyConBndrs tc_infos | otherwise = updateVarType swizzle_ty v - swizzle_ty ty = runIdentity (mapType swizzleMapper () ty) + (map_type, _, _, _) = mapTyCo swizzleMapper + swizzle_ty ty = runIdentity (map_type ty) generaliseTcTyCon :: (TcTyCon, ScopedPairs, TcKind) -> TcM TcTyCon |