From 1fb6f3f08565e29f2f00e172dbe4752e50b9e27f Mon Sep 17 00:00:00 2001
From: Apoorva Ranade <apoorvaranade02@gmail.com>
Date: Wed, 28 Apr 2021 15:32:07 +0530
Subject: [PATCH] While loop

---
 src/main/java/chocopy/pa3/CodeGenImpl.java | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/src/main/java/chocopy/pa3/CodeGenImpl.java b/src/main/java/chocopy/pa3/CodeGenImpl.java
index bd0626c..ec55c3f 100644
--- a/src/main/java/chocopy/pa3/CodeGenImpl.java
+++ b/src/main/java/chocopy/pa3/CodeGenImpl.java
@@ -381,7 +381,19 @@ public class CodeGenImpl extends CodeGenBase
         {
             return null;
         }
-        
+        @Override
+        public Void analyze(WhileStmt node) 
+        {
+            Label startLoop = generateLocalLabel(); 
+            backend.emitLocalLabel(startLoop, "Beginning of while loop");
+            node.condition.dispatch(this);
+            Label endLoop = elseBlock;
+            for(Stmt stmt:node.body)
+                stmt.dispatch(this);
+            backend.emitJ(startLoop, "Jump to beginning of loop");
+            backend.emitLocalLabel(endLoop, "End of while loop");
+            return null;
+        }
          @Override
          public Void analyze(ForStmt node) {
                  // control flow
@@ -415,11 +427,7 @@ public class CodeGenImpl extends CodeGenBase
 
     
 
-    @Override
-    public Void analyze(WhileStmt node) {
-    		// control flow
-        return defaultAction(node);
-    }
+    
     }
 
     /**