addOperand, isConstant

git-svn-id: https://svn.code.sf.net/p/jode/code/trunk@394 379699f6-c40d-0410-875b-85095c16579e

jode/jode/expr/NopOperator.java

@@ -41,10 +41,18 @@ public class NopOperator extends SimpleOperator {
         return 0;
     }
 
+    public Expression addOperand(Expression op) {
+	return op;
+    }
+
     public int getOperandPriority(int i) {
         return 0;
     }
 
+    public boolean isConstant() {
+	return false;
+    }
+
     public boolean equals(Object o) {
 	return (o instanceof NopOperator);
     }