code: /*
   * Copyright (C) 2010 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 tools.com.google.gson.stream;
  
  /**
   * A structure, name or value type in a JSON-encoded string.
   *
   * @author Jesse Wilson
   * @since 1.6
   */
  public enum JsonToken {
  
    /**
     * The opening of a JSON array. Written using {@link JsonWriter#beginArray}
     * and read using {@link JsonReader#beginArray}.
     */
    BEGIN_ARRAY,
  
    /**
     * The closing of a JSON array. Written using {@link JsonWriter#endArray}
     * and read using {@link JsonReader#endArray}.
     */
    END_ARRAY,
  
    /**
     * The opening of a JSON object. Written using {@link JsonWriter#beginObject}
     * and read using {@link JsonReader#beginObject}.
     */
    BEGIN_OBJECT,
  
    /**
     * The closing of a JSON object. Written using {@link JsonWriter#endObject}
     * and read using {@link JsonReader#endObject}.
     */
    END_OBJECT,
  
    /**
     * A JSON property name. Within objects, tokens alternate between names and
     * their values. Written using {@link JsonWriter#name} and read using {@link
     * JsonReader#nextName}
     */
    NAME,
  
    /**
     * A JSON string.
     */
    STRING,
  
    /**
     * A JSON number represented in this API by a Java {@code double}, {@code
     * long}, or {@code int}.
     */
    NUMBER,
  
    /**
     * A JSON {@code true} or {@code false}.
     */
    BOOLEAN,
  
    /**
     * A JSON {@code null}.
     */
    NULL,
  
    /**
     * The end of the JSON stream. This sentinel value is returned by {@link
     * JsonReader#peek()} to signal that the JSON-encoded value has no more
     * tokens.
     */
    END_DOCUMENT
  }
  