content: package com.alibaba.fastjson2.internal.asm;
  
  /**
   * Created by wenshao on 05/08/2017.
   */
  public class MethodCollector {
      private final int paramCount;
  
      private final int ignoreCount;
  
      private int currentParameter;
  
      private final StringBuilder result;
  
      protected boolean debugInfoPresent;
  
      protected MethodCollector(int ignoreCount, int paramCount) {
          this.ignoreCount = ignoreCount;
          this.paramCount = paramCount;
          this.result = new StringBuilder();
          this.currentParameter = 0;
          // if there are 0 parameters, there is no need for debug info
          this.debugInfoPresent = paramCount == 0;
      }
  
      protected void visitLocalVariable(String name, int index) {
          if (index >= ignoreCount && index < ignoreCount + paramCount) {
              if (!("arg" + currentParameter).equals(name)) {
                  debugInfoPresent = true;
              }
              result.append(',');
              result.append(name);
              currentParameter++;
          }
      }
  
      protected String getResult() {
          return result.length() != 0 ? result.substring(1) : "";
      }
  }
  