diff options
Diffstat (limited to 'compiler/GHC/Tc/Utils/TcMType.hs')
| -rw-r--r-- | compiler/GHC/Tc/Utils/TcMType.hs | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/compiler/GHC/Tc/Utils/TcMType.hs b/compiler/GHC/Tc/Utils/TcMType.hs index 1e82be0f0e..a3cda06cac 100644 --- a/compiler/GHC/Tc/Utils/TcMType.hs +++ b/compiler/GHC/Tc/Utils/TcMType.hs @@ -1793,6 +1793,10 @@ defaultTyVar default_kind tv = do { traceTc "Defaulting a RuntimeRep var to LiftedRep" (ppr tv) ; writeMetaTyVar tv liftedRepTy ; return True } + | isLevityVar tv + = do { traceTc "Defaulting a Levity var to Lifted" (ppr tv) + ; writeMetaTyVar tv liftedDataConTy + ; return True } | isMultiplicityVar tv = do { traceTc "Defaulting a Multiplicty var to Many" (ppr tv) ; writeMetaTyVar tv manyDataConTy |