CtOrigin(..), EqOrigin(..),
WantedLoc, GivenLoc, GivenKind(..), pushErrCtxt,
- SkolemInfo(..),
+ SkolemInfo(..),
CtFlavor(..), pprFlavorArising, isWanted,
isGivenOrSolved, isGiven_maybe,
import HsSyn
import HscTypes
import Type
+import Id ( evVarPred )
import Class ( Class )
import DataCon ( DataCon, dataConUserType )
import TcType
-- plus which bit is currently being examined
if_tv_env :: UniqFM TyVar, -- Nested tyvar bindings
+ -- (and coercions)
if_id_env :: UniqFM Id -- Nested id binding
}
\end{code}
-- We still need the unsullied global name env so that
-- we can look up record field names
+ tcl_hetMetLevel :: [TyVar], -- The current environment classifier level (list-of-names)
tcl_env :: TcTypeEnv, -- The local type environment: Ids and
-- TyVars defined in this module
| ATcId { -- Ids defined in this module; may not be fully zonked
tct_id :: TcId,
- tct_level :: ThLevel }
+ tct_level :: ThLevel,
+ tct_hetMetLevel :: [TyVar]
+ }
| ATyVar Name TcType -- The type to which the lexically scoped type vaiable
-- is currently refined. We only need the Name
ppr elt@(ATcId {}) = text "Identifier" <>
brackets (ppr (tct_id elt) <> dcolon
<> ppr (varType (tct_id elt)) <> comma
- <+> ppr (tct_level elt))
+ <+> ppr (tct_level elt)
+ <+> ppr (tct_hetMetLevel elt))
ppr (ATyVar tv _) = text "Type variable" <+> quotes (ppr tv)
ppr (AThing k) = text "AThing" <+> ppr k
%************************************************************************
%* *
Wanted constraints
-
These are forced to be in TcRnTypes because
TcLclEnv mentions WantedConstraints
WantedConstraint mentions CtLoc
pprEvVarTheta ev_vars = pprTheta (map evVarPred ev_vars)
pprEvVarWithType :: EvVar -> SDoc
-pprEvVarWithType v = ppr v <+> dcolon <+> pprPred (evVarPred v)
+pprEvVarWithType v = ppr v <+> dcolon <+> pprPredTy (evVarPred v)
pprWantedsWithLocs :: WantedConstraints -> SDoc
pprWantedsWithLocs wcs