From: simonpj <unknown>
Date: Thu, 7 Sep 2000 16:27:55 +0000 (+0000)
Subject: [project @ 2000-09-07 16:27:55 by simonpj]
X-Git-Tag: Approximately_9120_patches~3772
X-Git-Url: http://git.megacz.com/?a=commitdiff_plain;h=5439bab7664bafc3f085af00739dba49cba1f19e;p=ghc-hetmet.git

[project @ 2000-09-07 16:27:55 by simonpj]
Add comment
---

diff --git a/ghc/compiler/typecheck/TcPat.lhs b/ghc/compiler/typecheck/TcPat.lhs
index e5b8847..cedbd56 100644
--- a/ghc/compiler/typecheck/TcPat.lhs
+++ b/ghc/compiler/typecheck/TcPat.lhs
@@ -42,7 +42,6 @@ import Unique		( eqClassOpKey, geClassOpKey, minusClassOpKey,
 			)
 import BasicTypes	( isBoxed )
 import Bag
-import Util		( zipEqual )
 import Outputable
 \end{code}
 
@@ -213,7 +212,7 @@ tcPat tc_bndr pat@(RecPatIn name rpats) pat_ty
  	-- Check the constructor itself
     tcConstructor pat name pat_ty	`thenTc` \ (data_con, ex_tvs, dicts, lie_avail1, arg_tys) ->
     let
-	-- not zipEqual: if the constructor isn't really a record, then
+	-- Don't use zipEqual! If the constructor isn't really a record, then
 	-- dataConFieldLabels will be empty (and each field in the pattern
 	-- will generate an error below).
 	field_tys = zip (map fieldLabelName (dataConFieldLabels data_con))