content: package com.alibaba.fastjson.serializer;
  
  import com.alibaba.fastjson2.JSONWriter;
  
  import java.io.IOException;
  import java.lang.reflect.Type;
  
  public final class ToStringSerializer
          implements ObjectSerializer {
      public static final ToStringSerializer instance = new ToStringSerializer();
  
      @Override
      public void write(JSONWriter jsonWriter, Object object, Object fieldName, Type fieldType, long features) {
          if (object == null) {
              jsonWriter.writeNull();
              return;
          }
  
          String strVal = object.toString();
          jsonWriter.writeString(strVal);
      }
  
      @Override
      public void write(
              JSONSerializer serializer,
              Object object,
              Object fieldName,
              Type fieldType,
              int features) throws IOException {
          JSONWriter jsonWriter = serializer.out.raw;
          if (object == null) {
              jsonWriter.writeNull();
              return;
          }
  
          String strVal = object.toString();
          jsonWriter.writeString(strVal);
      }
  }
  