Add case over int.

1 files changed, 16 insertions, 0 deletions

diff --git a/syntax.sml b/syntax.sml
index b91e0a2..f85e6f2 100644
--- a/syntax.sml
+++ b/syntax.sml
@@ -10,6 +10,7 @@ struct
   datatype pat =
     PWild
   | PVar of string
+  | PInt of int
 
   datatype expr =
     EIdent of string list
@@ -37,6 +38,9 @@ struct
   | PSub
   | PMul
   | PDiv
+  | PLess
+  | PEq
+  | PIf
 
   datatype lexp =
     LVar of var
@@ -47,6 +51,7 @@ struct
   | LString of string
   | LRecord of lexp list
   | LPrim of primop
+  | LSwitch of lexp * (int * lexp) list * lexp
 
   (* CPS *)
   datatype value =
@@ -73,6 +78,9 @@ struct
   | OSub of var * value * value
   | OMul of var * value * value
   | ODiv of var * value * value
+  | OLess of var * value * value
+  | OEq of var * value * value
+  | OIf of value * var
   | OLabel of var
 
   fun listToString (show : 'a -> string) (l : 'a list) =
@@ -100,6 +108,7 @@ struct
     case p of
       PWild => "PWild"
     | PVar v => "PVar " ^ quote v
+    | PInt i => "PInt " ^ Int.toString i
 
   fun exprToStringI (indent : string) (x : expr) : string =
     let val self = exprToStringI indent
@@ -134,6 +143,9 @@ struct
     | PSub => "PSub"
     | PMul => "PMul"
     | PDiv => "PDiv"
+    | PLess => "PLess"
+    | PEq => "PEq"
+    | PIf => "PIf"
 
   fun lexpToString (x : lexp) : string =
     case x of
@@ -145,6 +157,7 @@ struct
     | LString s => "LString " ^ quote s
     | LRecord l => "LRecord " ^ listToString lexpToString l
     | LPrim p => "LPrim " ^ primopToString p
+    | LSwitch (e, arms, otherwise) => "LSwitch (" ^ lexpToString e ^ ", " ^ listToString (fn (x, e) => "(" ^ Int.toString x ^ ", " ^ lexpToString e ^ ")") arms ^ ", " ^ lexpToString otherwise ^ ")"
 
   fun valueToString (x : value) : string =
     case x of
@@ -179,5 +192,8 @@ struct
     | OSub (r, v1, v2) => "Var " ^ Int.toString r ^ " = OSub (" ^ valueToString v1 ^ ", " ^ valueToString v2 ^ ")"
     | OMul (r, v1, v2) => "Var " ^ Int.toString r ^ " = OMul (" ^ valueToString v1 ^ ", " ^ valueToString v2 ^ ")"
     | ODiv (r, v1, v2) => "Var " ^ Int.toString r ^ " = ODiv (" ^ valueToString v1 ^ ", " ^ valueToString v2 ^ ")"
+    | OLess (r, v1, v2) => "Var " ^ Int.toString r ^ " = OLess (" ^ valueToString v1 ^ ", " ^ valueToString v2 ^ ")"
+    | OEq (r, v1, v2) => "Var " ^ Int.toString r ^ " = OEq (" ^ valueToString v1 ^ ", " ^ valueToString v2 ^ ")"
+    | OIf (condition, target) => "OIf (" ^ valueToString condition ^ ") goto " ^ Int.toString target
     | OLabel l => "OLabel " ^ Int.toString l
 end