/*
 * Copyright (C) 2011 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.jboss.errai.codegen.builder.impl;

import org.jboss.errai.codegen.builder.callstack.CallElement;

/**
 * @author Mike Brock <cbrock@redhat.com>
 */
public class CallElementBuilder {
  protected CallElement rootElement;
  protected CallElement callElement;

  public void appendCallElement(final CallElement element) {
    if (callElement == null) {
      rootElement = callElement = element;
    }
    else {
      callElement = callElement.setNext(element);
    }
  }

  public CallElement getRootElement() {
    return rootElement;
  }

  public CallElement getCallElement() {
    return callElement;
  }

  @Override
  public String toString() {
    return rootElement == null ? "<empty>" : rootElement.toString();
  }
}