[project @ 2001-05-21 09:19:14 by simonpj]

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

diff --git a/ghc/compiler/typecheck/TcType.lhs b/ghc/compiler/typecheck/TcType.lhs
index 4df862c..3f6831b 100644 (file)
--- a/ghc/compiler/typecheck/TcType.lhs
+++ b/ghc/compiler/typecheck/TcType.lhs
@@ -23,7 +23,7 @@ module TcType (
   tcSplitRhoTy,
 
   tcInstTyVar, tcInstTyVars,
-  tcInstSigVar,
+  tcInstSigVars,
   tcInstType,
 
   --------------------------------
@@ -171,14 +171,14 @@ tcInstTyVar tyvar
     in
     tcNewMutTyVar name (tyVarKind tyvar)
 
-tcInstSigVar tyvar     -- Very similar to tcInstTyVar
-  = tcGetUnique        `thenNF_Tc` \ uniq ->
-    let 
-       name = setNameUnique (tyVarName tyvar) uniq
-       kind = tyVarKind tyvar
-    in
-    ASSERT( not (kind == openTypeKind) )       -- Shouldn't happen
-    tcNewSigTyVar name kind
+tcInstSigVars tyvars   -- Very similar to tcInstTyVar
+  = tcGetUniques       `thenNF_Tc` \ uniqs ->
+    listTc [ ASSERT( not (kind == openTypeKind) )      -- Shouldn't happen
+            tcNewSigTyVar name kind 
+          | (tyvar, uniq) <- tyvars `zip` uniqs,
+            let name = setNameUnique (tyVarName tyvar) uniq, 
+            let kind = tyVarKind tyvar
+          ]
 \end{code}
 
 @tcInstType@ instantiates the outer-level for-alls of a TcType with