From 842df74cf5bd4728481edd8a82a4e12e8e313925 Mon Sep 17 00:00:00 2001
From: krasimir <krasimir@chalmers.se>
Date: Mon, 6 Mar 2017 14:44:03 +0000
Subject: [PATCH] some missing patterns

---
 .../GF/Compile/TypeCheck/ConcreteNew.hs       | 22 ++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/src/compiler/GF/Compile/TypeCheck/ConcreteNew.hs b/src/compiler/GF/Compile/TypeCheck/ConcreteNew.hs
index 25f4e9c19..eb275a798 100644
--- a/src/compiler/GF/Compile/TypeCheck/ConcreteNew.hs
+++ b/src/compiler/GF/Compile/TypeCheck/ConcreteNew.hs
@@ -235,6 +235,9 @@ tcRho ge scope (Strs ss) mb_ty = do
            (t,_) <- tcRho ge scope t (Just vtypeStr)
            return t
   instSigma ge scope (Strs ss) vtypeStrs mb_ty
+tcRho ge scope (EPattType ty) mb_ty = do
+  (ty, _) <- tcRho ge scope ty (Just vtypeType)
+  instSigma ge scope (EPattType ty) vtypeType mb_ty
 tcRho gr scope t _ = unimplemented ("tcRho "++show t)
 
 tcCases ge scope []         p_ty mb_res_ty = return ([],mb_res_ty)
@@ -269,6 +272,8 @@ tcApp ge scope (QC id) =                                         -- VAR (global)
   mkTcA (lookupOverloadTypes (geGrammar ge) id) `bindTcA` \(t,ty) -> 
      do ty <- liftErr (eval ge [] ty)
         return (t,ty)
+tcApp ge scope t =
+  singleTcA (tcRho ge scope t Nothing)
 
 
 tcOverloadFailed t ttys =
@@ -319,10 +324,18 @@ tcPatt ge scope (PR rs) ty0 = do
   ltys <- mk_ltys rs
   subsCheckRho ge scope (EPatt (PR rs)) (VRecType [(l,ty) | (l,p,ty) <- ltys]) ty0
   go scope ltys
-tcPatt gr scope (PAlt p1 p2) ty0 = do
-  tcPatt gr scope p1 ty0
-  tcPatt gr scope p2 ty0
+tcPatt ge scope (PAlt p1 p2) ty0 = do
+  tcPatt ge scope p1 ty0
+  tcPatt ge scope p2 ty0
   return scope
+tcPatt ge scope (PM q) ty0 = do
+  case lookupResType (geGrammar ge) q of
+    Ok (EPattType ty)
+            -> do vty <- liftErr (eval ge [] ty)
+                  unify ge scope ty0 vty
+                  return scope
+    Ok ty   -> tcError ("Pattern type expected but " <+> pp ty <+> " found.")
+    Bad err -> tcError (pp err)
 tcPatt ge scope p ty = unimplemented ("tcPatt "++show p)
 
 inferRecFields ge scope rs = 
@@ -742,6 +755,9 @@ mkTcA f = case f of
             Ok  [x] -> TcSingle  (\ms msgs -> TcOk x ms msgs)
             Ok  xs  -> TcMany xs (\ms msgs -> [(x,ms,msgs) | x <- xs])
 
+singleTcA :: TcM a -> TcA x a
+singleTcA = TcSingle . unTcM
+
 bindTcA :: TcA x a -> (a -> TcM b) -> TcA x b
 bindTcA f g = case f of
                 TcSingle  f -> TcSingle (unTcM (TcM f >>= g))