Exemple #1
0
  /**
   * 参数代码转换,根据节点的信息将参数转换成数组放入JVM语句栈中。
   *
   * @param mv ASM方法访问对象
   * @param local ASM方法内部的语句栈局部变量起始位置
   * @param vm 变量管理器
   */
  public void parseAllParameters(MethodVisitorProxy mv, int local, VariableManager vm) {
    int len = PARAMETERS != null ? PARAMETERS.length : 0;

    if (allDesc.get(this.getClass().getName()) != null) {
      if (len > 0) {
        for (int i = 0; i < len; i++) {
          if (PARAMETERS[i] == null) {
            mv.visitLdcInsn(null);
          } else {
            PARAMETERS[i].parse(mv, local, vm);
          }
        }
      }
    } else {
      if (len == 0) {
        // 没有参数
        mv.visitLdcInsn(null);
      } else {
        mv.visitLdcInsn(PARAMETERS.length);
        mv.visitTypeInsn(ANEWARRAY, "java/lang/Object");

        for (int i = 0; i < len; i++) {
          if (PARAMETERS[i] == null) {
            continue;
          }
          mv.visitInsn(DUP);
          mv.visitLdcInsn(i);
          PARAMETERS[i].parseObject(mv, local, vm);
          mv.visitInsn(AASTORE);
        }
      }
    }
  }
 @Override
 public void parseSelf(MethodVisitorProxy mv, int local, VariableManager vm) {
   mv.visitTypeInsn(NEW, "java/util/HashMap");
   mv.visitInsn(DUP);
   mv.visitMethodInsn(INVOKESPECIAL, "java/util/HashMap", "<init>", "()V");
   for (Map.Entry<String, Expression> entry : value.entrySet()) {
     mv.visitInsn(DUP);
     mv.visitLdcInsn(entry.getKey());
     entry.getValue().parseObject(mv, local, vm);
     mv.visitMethodInsn(
         INVOKEVIRTUAL,
         "java/util/HashMap",
         "put",
         "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;");
     mv.visitInsn(POP);
   }
 }