Refactor (again) the handling of default methods

[ghc-hetmet.git] / compiler / typecheck / TcInstDcls.lhs

diff --git a/compiler/typecheck/TcInstDcls.lhs b/compiler/typecheck/TcInstDcls.lhs
index 1bc7099..55fc342 100644 (file)
--- a/compiler/typecheck/TcInstDcls.lhs
+++ b/compiler/typecheck/TcInstDcls.lhs
@@ -21,7 +21,6 @@ import FamInst
 import FamInstEnv
 import TcDeriv
 import TcEnv
-import RnEnv   ( lookupGlobalOccRn )
 import RnSource ( addTcgDUs )
 import TcHsType
 import TcUnify
@@ -1026,7 +1025,7 @@ tcInstanceMethod loc standalone_deriv clas tyvars dfun_dicts inst_tys
                 = do { meth_bind <- mkGenericDefMethBind clas inst_tys sel_id local_meth_name
                      ; tc_body meth_bind }
                  
-             tc_default DefMeth        -- An polymorphic default method
+             tc_default (DefMeth dm_name)      -- An polymorphic default method
                = do {   -- Build the typechecked version directly, 
                         -- without calling typecheck_method; 
                         -- see Note [Default methods in instances]
@@ -1034,8 +1033,7 @@ tcInstanceMethod loc standalone_deriv clas tyvars dfun_dicts inst_tys
                          --                      in $dm inst_tys this
                         -- The 'let' is necessary only because HsSyn doesn't allow
                         -- you to apply a function to a dictionary *expression*.
-                      dm_name <- lookupGlobalOccRn (mkDefMethRdrName sel_name)
-                                       -- Might not be imported, but will be an OrigName
+
                     ; dm_id <- tcLookupId dm_name
                      ; let dm_inline_prag = idInlinePragma dm_id
                            rhs = HsWrap (WpApp (instToId this_dict) <.> mkWpTyApps inst_tys) $