From 655114600f02bd2d0ed5571cdb1670b357b3fa41 Mon Sep 17 00:00:00 2001
From: Camil Staps
Date: Mon, 18 May 2015 14:47:30 +0200
Subject: RefactorX camil

---
 fp2/week45/camil/RefactorX.dcl | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 fp2/week45/camil/RefactorX.dcl

(limited to 'fp2/week45/camil/RefactorX.dcl')

diff --git a/fp2/week45/camil/RefactorX.dcl b/fp2/week45/camil/RefactorX.dcl
new file mode 100644
index 0000000..3ddc8a4
--- /dev/null
+++ b/fp2/week45/camil/RefactorX.dcl
@@ -0,0 +1,18 @@
+definition module RefactorX
+
+import StdEnv
+
+::	Expr			= NR   Int
+					| VAR  Name
+					| OP   Expr Operator Expr
+					| LET  Name     Expr Expr
+::	Name		  :== String
+::	Operator		= PLUS | MIN | MUL | DIV
+::	Val				= Result Int | Undef
+
+from StdClass import class toString
+
+instance toString Expr
+free				:: Expr -> [Name]
+remove_unused_lets	:: Expr -> Expr
+eval				:: Expr -> Val
-- 
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