From 2c6cd7dda8fd06c4457efc8751df343b83616b11 Mon Sep 17 00:00:00 2001
From: Mart Lubbers <mart@martlubbers.net>
Date: Thu, 14 Apr 2016 11:21:07 +0200
Subject: [PATCH] hoi' git push oi

---
 examples/Markus/overloading.spl |  2 ++
 sem.icl                         | 27 +++++++++++++++++++--------
 2 files changed, 21 insertions(+), 8 deletions(-)

diff --git a/examples/Markus/overloading.spl b/examples/Markus/overloading.spl
index 754da17..4d8c615 100644
--- a/examples/Markus/overloading.spl
+++ b/examples/Markus/overloading.spl
@@ -1,6 +1,8 @@
 // At this point you maybe don't see what the problem is.
 // Wait until you try to implement your code generator.
 
+var a = equal(1, 2);
+
 equal(x, y)
 {
   return x == y;
diff --git a/sem.icl b/sem.icl
index 3438810..820e45d 100644
--- a/sem.icl
+++ b/sem.icl
@@ -42,13 +42,13 @@ where
     m :: Env ([VarDecl], [FunDecl])
     m = mapM semVarDecl vd >>= \vd1 ->
         mapM semFunDecl fd >>= \fd1 -> 
-    	mapM semVarDecl vd1 >>= \vd2 ->
-        mapM semFunDecl fd1 >>= \fd2 -> 
-    	mapM semVarDecl vd2 >>= \vd3 ->
-        mapM semFunDecl fd2 >>= \fd3 -> 
-    	mapM semVarDecl vd3 >>= \vd4 ->
-        mapM semFunDecl fd3 >>= \fd4 ->  //Dit is puur om te proberen
-        pure (vd4, fd4)
+//    	mapM semVarDecl vd1 >>= \vd2 ->
+//        mapM semFunDecl fd1 >>= \fd2 -> 
+//    	mapM semVarDecl vd2 >>= \vd3 ->
+//        mapM semFunDecl fd2 >>= \fd3 -> 
+//    	mapM semVarDecl vd3 >>= \vd4 ->
+//        mapM semFunDecl fd3 >>= \fd4 ->  //Dit is puur om te proberen
+        pure (vd1, fd1)
 
 semFunDecl :: FunDecl -> Env FunDecl
 semFunDecl fd=:(FunDecl p f args mt vds stmts) = 
@@ -59,15 +59,26 @@ semFunDecl fd=:(FunDecl p f args mt vds stmts) =
  	matchFunctions args ft >>= \tres->
     mapM semVarDecl vds >>= \newvds->
     mapM (checkStmt tres) stmts >>= \newstmts->
-	inferReturnType stmts >>= \returntype->
+	inferReturnType stmts >>= \returntype`->
+	unify returntype` tres >>= \returntype->
 	case mt of
 		Nothing = reconstructType args tres
+			>>= \ftype`->recoverType ftype`
 			>>= \ftype->restoreGamma gamma 
 			>>| putIdent f ftype >>| pure (
 			FunDecl p f args (Just ftype) newvds newstmts)
 		Just t = restoreGamma gamma >>| updateFunType t returntype
 			>>= \tt-> pure (FunDecl p f args (Just tt) newvds newstmts) 
 
+recoverType :: Type -> Env Type
+recoverType (IdType ident) = gets (\(st, r)->'Map'.get ident st)
+	>>= \mt->case mt of
+		Nothing = pure (IdType ident)
+		Just t = pure t
+recoverType (t1 ->> t2) = recoverType t1 >>= \t1`->recoverType t2 
+	>>= \t2`->pure (t1` ->> t2`) 
+recoverType t = pure t
+
 updateFunType :: Type Type -> Env Type
 updateFunType t1 t2 = unify t1 t2
 updateFunType (t1 ->> t2) t3 = t1 ->> (updateFunType t2 t3)
-- 
2.20.1