X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Ftypecheck%2FTcRnDriver.lhs;h=8638d9f5ec2bd5db3c36458a313d00e147eb7ca0;hb=1f4bc1f36380776c68431dbc3b5fa41dd6d2182e;hp=069446fb43504d6abbef56ae027840e745d729bb;hpb=de1a1f9f882cf1a5c81c4a152edc001aafd3f8a3;p=ghc-hetmet.git

diff --git a/compiler/typecheck/TcRnDriver.lhs b/compiler/typecheck/TcRnDriver.lhs
index 069446f..8638d9f 100644
--- a/compiler/typecheck/TcRnDriver.lhs
+++ b/compiler/typecheck/TcRnDriver.lhs
@@ -297,7 +297,7 @@ tcRnExtCore hsc_env (HsExtCore this_mod decls src_binds)
 	-- any mutually recursive types are done right
 	-- Just discard the auxiliary bindings; they are generated 
 	-- only for Haskell source code, and should already be in Core
-   (tcg_env, _aux_binds) <- tcTyAndClassDecls emptyModDetails rn_decls ;
+   (tcg_env, _aux_binds, _dm_ids) <- tcTyAndClassDecls emptyModDetails rn_decls ;
 
    setGblEnv tcg_env $ do {
 	-- Make the new type env available to stuff slurped from interface files
@@ -485,8 +485,10 @@ tcRnHsBootDecls decls
 
 		-- Typecheck type/class decls
 	; traceTc (text "Tc2")
-	; (tcg_env, aux_binds) <- tcTyAndClassDecls emptyModDetails tycl_decls
-	; setGblEnv tcg_env	$ do {
+	; (tcg_env, aux_binds, dm_ids) 
+               <- tcTyAndClassDecls emptyModDetails tycl_decls
+	; setGblEnv tcg_env    $ 
+          tcExtendIdEnv dm_ids $ do {
 
 		-- Typecheck instance decls
 		-- Family instance declarations are rejected here
@@ -821,10 +823,12 @@ tcTopSrcDecls boot_details
 		-- The latter come in via tycl_decls
         traceTc (text "Tc2") ;
 
-	(tcg_env, aux_binds) <- tcTyAndClassDecls boot_details tycl_decls ;
+	(tcg_env, aux_binds, dm_ids) <- tcTyAndClassDecls boot_details tycl_decls ;
 		-- If there are any errors, tcTyAndClassDecls fails here
 	
-	setGblEnv tcg_env	$ do {
+	setGblEnv tcg_env	$
+        tcExtendIdEnv dm_ids    $ do {
+
 		-- Source-language instances, including derivings,
 		-- and import the supporting declarations
         traceTc (text "Tc3") ;
@@ -854,13 +858,12 @@ tcTopSrcDecls boot_details
 	(tc_val_binds, tcl_env) <- setLclTypeEnv tcl_env $
 			 	   tcTopBinds val_binds;
 
+        setLclTypeEnv tcl_env $ do {	-- Environment doesn't change now
+
 	     	-- Second pass over class and instance declarations, 
         traceTc (text "Tc6") ;
-	(inst_binds, tcl_env) <- setLclTypeEnv tcl_env $ 
-                                 tcInstDecls2 tycl_decls inst_infos ;
-                                 	showLIE (text "after instDecls2") ;
-
-        setLclTypeEnv tcl_env $ do {	-- Environment doesn't change now
+	inst_binds <- tcInstDecls2 tycl_decls inst_infos ;
+        showLIE (text "after instDecls2") ;
 
 		-- Foreign exports
         traceTc (text "Tc7") ;