X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2Ftypecheck%2FFamInst.lhs;h=e2da7952a92291d4cd6d8e1f7faa7a6650b218e3;hp=b09f9a516da17b92c729e76708f9a9230f0286f1;hb=d2ce0f52d42edf32bb9f13796e6ba6edba8bd516;hpb=0084ab49ab3c0123c4b7f9523d092af45bccfd41

diff --git a/compiler/typecheck/FamInst.lhs b/compiler/typecheck/FamInst.lhs
index b09f9a5..e2da795 100644
--- a/compiler/typecheck/FamInst.lhs
+++ b/compiler/typecheck/FamInst.lhs
@@ -2,7 +2,7 @@ The @FamInst@ type: family instance heads
 
 \begin{code}
 module FamInst ( 
-        checkFamInstConsistency, tcExtendLocalFamInstEnv
+        checkFamInstConsistency, tcExtendLocalFamInstEnv, tcGetFamInstEnvs
     ) where
 
 import HscTypes
@@ -197,4 +197,17 @@ addFamInstLoc famInst thing_inside
   = setSrcSpan (mkSrcSpan loc loc) thing_inside
   where
     loc = getSrcLoc famInst
+\end{code} 
+
+\begin{code} 
+
+tcGetFamInstEnvs :: TcM (FamInstEnv, FamInstEnv)
+-- Gets both the external-package inst-env
+-- and the home-pkg inst env (includes module being compiled)
+tcGetFamInstEnvs 
+  = do { eps <- getEps; env <- getGblEnv
+       ; return (eps_fam_inst_env eps, tcg_fam_inst_env env) 
+       }
+
+
 \end{code}