/*
 * Copyright 2008 Google Inc.
 * 
 * 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 com.google.gwt.dev.js.ast;

/**
 * The context in which a JsNode visitation occurs. This represents the set of possible operations a
 * JsVisitor subclass can perform on the currently visited node.
 */
public interface JsContext {

  boolean canInsert();

  boolean canRemove();

  void insertAfter(JsVisitable node);

  void insertBefore(JsVisitable node);

  boolean isLvalue();

  void removeMe();

  void replaceMe(JsVisitable node);
}