content: // ASM: a very small and fast Java bytecode manipulation framework
  // Copyright (c) 2000-2011 INRIA, France Telecom
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  //
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  // modification, are permitted provided that the following conditions
  // are met:
  // 1. Redistributions of source code must retain the above copyright
  //    notice, this list of conditions and the following disclaimer.
  // 2. Redistributions in binary form must reproduce the above copyright
  //    notice, this list of conditions and the following disclaimer in the
  //    documentation and/or other materials provided with the distribution.
  // 3. Neither the name of the copyright holders nor the names of its
  //    contributors may be used to endorse or promote products derived from
  //    this software without specific prior written permission.
  //
  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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  // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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  // THE POSSIBILITY OF SUCH DAMAGE.
  package com.alibaba.fastjson2.internal.asm;
  
  /**
   * @author Eric Bruneton
   */
  public final class FieldWriter {
      FieldWriter fv;
  
      /**
       * Where the constants used in this FieldWriter must be stored.
       */
  //    private final SymbolTable symbolTable;
  
      // Note: fields are ordered as in the field_info structure, and those related to attributes are
      // ordered as in Section 4.7 of the JVMS.
  
      private final int accessFlags;
  
      /**
       * The name_index field of the field_info JVMS structure.
       */
      private final int nameIndex;
  
      /**
       * The descriptor_index field of the field_info JVMS structure.
       */
      private final int descriptorIndex;
  
      /**
       * Constructs a new {@link FieldWriter}.
       *
       * @param symbolTable where the constants used in this FieldWriter must be stored.
       * @param access      the field's access flags (see {@link Opcodes}).
       * @param name        the field's name.
       * @param descriptor  the field's descriptor (see {@link Type}).
       */
      FieldWriter(
              final SymbolTable symbolTable,
              final int access,
              final String name,
              final String descriptor) {
  //        this.symbolTable = symbolTable;
          this.accessFlags = access;
          this.nameIndex = symbolTable.addConstantUtf8(name);
          this.descriptorIndex = symbolTable.addConstantUtf8(descriptor);
      }
  
      /**
       * Puts the content of the field_info JVMS structure generated by this FieldWriter into the given
       * ByteVector.
       *
       * @param output where the field_info structure must be put.
       */
      void putFieldInfo(final ByteVector output) {
          // Put the access_flags, name_index and descriptor_index fields.
          int mask = 0;
          output.putShort(accessFlags & ~mask).putShort(nameIndex).putShort(descriptorIndex);
          // Compute and put the attributes_count field.
          // For ease of reference, we use here the same attribute order as in Section 4.7 of the JVMS.
          int attributesCount = 0;
          output.putShort(attributesCount);
      }
  }
  