added isSuper() in MethodCall.

git-svn-id: http://anonsvn.jboss.org/repos/javassist/trunk@17 30ef5769-5b8d-40dd-aea6-55b5d6557bb3

Readme.html

@@ -245,6 +245,7 @@ see javassist.Dump.
   <li>CtClass.makeClassInitializer() has been added.
   <li>javassist.expr.Expr has been changed to a public class.
   <li>javassist.expr.Handler has been added.
+  <li>javassist.expr.MethodCall.isSuper() has been added.
   <li>CtMethod.isEmpty() and CtConstructor.isEmpty() have been added.
   <li>LoaderClassPath has been implemented.
 </ul>

src/main/javassist/expr/MethodCall.java

@@ -127,6 +127,15 @@ public class MethodCall extends Expr {
         return super.mayThrow();
     }
 
+    /**
+     * Returns true if the called method is of a superclass of the current
+     * class.
+     */
+    boolean isSuper() {
+        return iterator.byteAt(currentPos) == INVOKESPECIAL
+            && !where().getDeclaringClass().getName().equals(getClassName());
+    }
+
     /*
      * Returns the parameter types of the called method.