replace E with in

[proglang.git] / Printsyntax.hs

diff --git a/Printsyntax.hs b/Printsyntax.hs
index feb0b2332dce7a464f6db733404e1df969d77f70..d1b4c4962d5b0a37e4d40bfec23c249040213763 100644 (file)
--- a/Printsyntax.hs
+++ b/Printsyntax.hs
@@ -87,13 +87,25 @@ instance Print Bool where
    False  -> prPrec i 0 (concatD [doc (showString "false")])
 
 
+instance Print Type where
+  prt i e = case e of
+   TInt  -> prPrec i 0 (concatD [doc (showString "int")])
+   TBool  -> prPrec i 0 (concatD [doc (showString "bool")])
+
+
+instance Print Stms where
+  prt i e = case e of
+   Program stms -> prPrec i 0 (concatD [prt 0 stms])
+
+
 instance Print Stm where
   prt i e = case e of
-   SDecl type' id exp -> prPrec i 0 (concatD [prt 0 type' , prt 0 id , doc (showString "=") , prt 0 exp , doc (showString ";")])
    SExp exp -> prPrec i 0 (concatD [prt 0 exp , doc (showString ";")])
    SBlock stms -> prPrec i 0 (concatD [doc (showString "{") , prt 0 stms , doc (showString "}")])
-   SIf exp stm0 stm -> prPrec i 0 (concatD [doc (showString "if") , doc (showString "(") , prt 0 exp , doc (showString ")") , prt 0 stm0 , doc (showString "else") , prt 0 stm])
+   SDecl type' id exp -> prPrec i 0 (concatD [prt 0 type' , prt 0 id , doc (showString "=") , prt 0 exp , doc (showString ";")])
+   SDeclD type' id -> prPrec i 0 (concatD [prt 0 type' , prt 0 id , doc (showString ";")])
    SWhile exp stm -> prPrec i 0 (concatD [doc (showString "while") , doc (showString "(") , prt 0 exp , doc (showString ")") , prt 0 stm])
+   SIf exp stm0 stm -> prPrec i 0 (concatD [doc (showString "if") , doc (showString "(") , prt 0 exp , doc (showString ")") , prt 0 stm0 , doc (showString "else") , prt 0 stm])
    SPrint exp -> prPrec i 0 (concatD [doc (showString "print") , prt 0 exp , doc (showString ";")])
    SNoop  -> prPrec i 0 (concatD [])
 
@@ -106,21 +118,15 @@ instance Print Exp where
    EAss id exp -> prPrec i 0 (concatD [prt 0 id , doc (showString "=") , prt 0 exp])
    EVar id -> prPrec i 3 (concatD [prt 0 id])
    EInt n -> prPrec i 3 (concatD [prt 0 n])
-   ENeg exp -> prPrec i 3 (concatD [doc (showString "-") , prt 3 exp])
    EBool bool -> prPrec i 3 (concatD [prt 0 bool])
+   ENeg exp -> prPrec i 3 (concatD [doc (showString "-") , prt 3 exp])
+   ENot exp -> prPrec i 3 (concatD [doc (showString "!") , prt 3 exp])
    EReadI  -> prPrec i 3 (concatD [doc (showString "readInt")])
    EReadB  -> prPrec i 3 (concatD [doc (showString "readBool")])
-   ExpT type' exp -> prPrec i 0 (concatD [prt 0 type' , prt 0 exp])
-   EDefault  -> prPrec i 0 (concatD [])
    BiOpExp exp0 op exp -> prPrec i 0 (concatD [prt 0 exp0 , prt 0 op , prt 0 exp])
    EPost id op -> prPrec i 0 (concatD [prt 0 id , prt 1 op])
 
 
-instance Print Stms where
-  prt i e = case e of
-   Program stms -> prPrec i 0 (concatD [prt 0 stms])
-
-
 instance Print Op where
   prt i e = case e of
    Lt  -> prPrec i 0 (concatD [doc (showString "<")])
@@ -135,11 +141,4 @@ instance Print Op where
    Div  -> prPrec i 2 (concatD [doc (showString "/")])
 
 
-instance Print Type where
-  prt i e = case e of
-   TInt  -> prPrec i 0 (concatD [doc (showString "int")])
-   TBool  -> prPrec i 0 (concatD [doc (showString "bool")])
-   NoType  -> prPrec i 0 (concatD [])
-
-