content: package com.alibaba.fastjson2.writer;
  
  import com.alibaba.fastjson2.JSONB;
  import com.alibaba.fastjson2.JSONWriter;
  import com.alibaba.fastjson2.util.Fnv;
  import com.alibaba.fastjson2.util.TypeUtils;
  
  import java.lang.reflect.Type;
  import java.util.Currency;
  
  final class ObjectWriterImplCurrency
          extends ObjectWriterPrimitiveImpl {
      static final ObjectWriterImplCurrency INSTANCE = new ObjectWriterImplCurrency(null);
      static final ObjectWriterImplCurrency INSTANCE_FOR_FIELD = new ObjectWriterImplCurrency(null);
  
      static final byte[] JSONB_TYPE_NAME_BYTES = JSONB.toBytes(TypeUtils.getTypeName(Currency.class));
      static final long JSONB_TYPE_HASH = Fnv.hashCode64(TypeUtils.getTypeName(Currency.class));
  
      final Class defineClass;
  
      ObjectWriterImplCurrency(Class defineClass) {
          this.defineClass = defineClass;
      }
  
      @Override
      public void writeJSONB(JSONWriter jsonWriter, Object object, Object fieldName, Type fieldType, long features) {
          if (object == null) {
              jsonWriter.writeNull();
              return;
          }
  
          Currency currency = (Currency) object;
          if (jsonWriter.isWriteTypeInfo(currency) && defineClass == null) {
              jsonWriter.writeTypeName(JSONB_TYPE_NAME_BYTES, JSONB_TYPE_HASH);
          }
  
          jsonWriter.writeString(currency.getCurrencyCode());
      }
  
      @Override
      public void write(JSONWriter jsonWriter, Object object, Object fieldName, Type fieldType, long features) {
          if (jsonWriter.jsonb) {
              writeJSONB(jsonWriter, object, fieldName, fieldType, features);
              return;
          }
          if (object == null) {
              jsonWriter.writeNull();
              return;
          }
  
          Currency currency = (Currency) object;
          jsonWriter.writeString(currency.getCurrencyCode());
      }
  }
  