Div-by-1 peep

1 files changed, 6 insertions, 1 deletions

diff --git a/chapter15/src/main/java/com/seaofnodes/simple/node/DivNode.java b/chapter15/src/main/java/com/seaofnodes/simple/node/DivNode.java
index 0d169cda..76e98678 100644
--- a/chapter15/src/main/java/com/seaofnodes/simple/node/DivNode.java
+++ b/chapter15/src/main/java/com/seaofnodes/simple/node/DivNode.java
@@ -35,7 +35,12 @@ public class DivNode extends Node {
     }
 
     @Override
-    public Node idealize() { return null; }
+    public Node idealize() {
+        // Div of 1.
+        if( in(2)._type == TypeInteger.TRUE )
+            return in(1);
+        return null;
+    }
 
     @Override Node copy(Node lhs, Node rhs) { return new DivNode(lhs,rhs); }
     @Override Node copyF() { return new DivFNode(null,null); }