X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2Ftypecheck%2FTcType.lhs;h=94ea3f9b07cb78c5ed359b9583b1b8a79c2226e7;hp=a53c9ed2fc9801b054a0bb645da5ef689c6a08ff;hb=138b885a335734039daf7debb0a7dfc3dc947c00;hpb=a835e9faf19400aa6b7999b6f64e60cb1c7737dd;ds=sidebyside

diff --git a/compiler/typecheck/TcType.lhs b/compiler/typecheck/TcType.lhs
index a53c9ed..94ea3f9 100644
--- a/compiler/typecheck/TcType.lhs
+++ b/compiler/typecheck/TcType.lhs
@@ -344,6 +344,7 @@ data SkolemInfo
 	-- The rest are for non-scoped skolems
   | ClsSkol Class	-- Bound at a class decl
   | InstSkol Id		-- Bound at an instance decl
+  | FamInstSkol TyCon	-- Bound at a family instance decl
   | PatSkol DataCon	-- An existential type variable bound by a pattern for
 	    SrcSpan	-- a data constructor with an existential type. E.g.
 			--	data T = forall a. Eq a => MkT a
@@ -486,8 +487,13 @@ pprSkolTvBinding tv
 pprSkolInfo :: SkolemInfo -> SDoc
 pprSkolInfo (SigSkol ctxt)   = ptext SLIT("is bound by") <+> pprUserTypeCtxt ctxt
 pprSkolInfo (ClsSkol cls)    = ptext SLIT("is bound by the class declaration for") <+> quotes (ppr cls)
-pprSkolInfo (InstSkol df)    = ptext SLIT("is bound by the instance declaration at") <+> ppr (getSrcLoc df)
-pprSkolInfo (ArrowSkol loc)  = ptext SLIT("is bound by the arrow form at") <+> ppr loc
+pprSkolInfo (InstSkol df)    = 
+  ptext SLIT("is bound by the instance declaration at") <+> ppr (getSrcLoc df)
+pprSkolInfo (FamInstSkol tc) = 
+  ptext SLIT("is bound by the family instance declaration at") <+> 
+  ppr (getSrcLoc tc)
+pprSkolInfo (ArrowSkol loc)  = 
+  ptext SLIT("is bound by the arrow form at") <+> ppr loc
 pprSkolInfo (PatSkol dc loc) = sep [ptext SLIT("is bound by the pattern for") <+> quotes (ppr dc),
            		            nest 2 (ptext SLIT("at") <+> ppr loc)]
 pprSkolInfo (GenSkol tvs ty loc) = sep [sep [ptext SLIT("is bound by the polymorphic type"),