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[repair.git] / Repair / RepairCompiler / MCC / IR / Expr.java

diff --git a/Repair/RepairCompiler/MCC/IR/Expr.java b/Repair/RepairCompiler/MCC/IR/Expr.java
index 655004b4190edebf9711979dbdbb6372dc8fb225..766ae20ebd4e02b7b9e7d240eddc942a9ed2ff2a 100755 (executable)
--- a/Repair/RepairCompiler/MCC/IR/Expr.java
+++ b/Repair/RepairCompiler/MCC/IR/Expr.java
@@ -85,4 +85,12 @@ public abstract class Expr {
     public boolean isSafe() {
        return true;
     }
+
+    public Expr getLower() {
+       return null;
+    }
+
+    public Expr getUpper() {
+       return null;
+    }
 }