/** @deprecated using deprecated code */
  public void testPostfixExpression() throws Exception {
    IPackageFragment pack1 = this.sourceFolder.createPackageFragment("test1", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("    function foo() {\n");
    buf.append("        i= x--;\n");
    buf.append("    }\n");
    IJavaScriptUnit cu = pack1.createCompilationUnit("E.js", buf.toString(), false, null);

    JavaScriptUnit astRoot = createAST(cu);
    ASTRewrite rewrite = ASTRewrite.create(astRoot.getAST());

    AST ast = astRoot.getAST();

    assertTrue("Parse errors", (astRoot.getFlags() & ASTNode.MALFORMED) == 0);
    //		TypeDeclaration type= findTypeDeclaration(astRoot, "E");
    FunctionDeclaration methodDecl = findMethodDeclaration(astRoot, "foo");
    Block block = methodDecl.getBody();
    List statements = block.statements();
    assertTrue("Number of statements not 1", statements.size() == 1);
    { // modify operand and operation
      ExpressionStatement stmt = (ExpressionStatement) statements.get(0);
      Assignment assignment = (Assignment) stmt.getExpression();

      PostfixExpression postExpression = (PostfixExpression) assignment.getRightHandSide();

      NumberLiteral newOperation = ast.newNumberLiteral("10");
      rewrite.replace(postExpression.getOperand(), newOperation, null);

      rewrite.set(
          postExpression,
          PostfixExpression.OPERATOR_PROPERTY,
          PostfixExpression.Operator.INCREMENT,
          null);
    }

    String preview = evaluateRewrite(cu, rewrite);

    buf = new StringBuffer();
    buf.append("    function foo() {\n");
    buf.append("        i= 10++;\n");
    buf.append("    }\n");
    assertEqualString(preview, buf.toString());
  }
 /*
  * @see ASTVisitor#visit(PostfixExpression)
  */
 public boolean visit(PostfixExpression node) {
   node.getOperand().accept(this);
   this.fBuffer.append(node.getOperator().toString());
   return false;
 }