固体 - openzeppeling/utils/counters问题

发布于 2025-02-03 18:45:32 字数 577 浏览 4 评论 0原文

当我们使用计数器库时，我们通常会这样启动

 using Counters for Counters.Counter;
 Counters.Counter private _tokenIds;

。使用计数器库方法进行计数器。Counter（库中的结构），并分配_tokenIDS指向该结构。（+ - ？酷。）

是什么让我感到困惑的是计数器内部的函数定义？即

function current(Counter storage counter) internal view returns (uint256) {
  return counter._value;
}

function increment(Counter storage counter) internal {
  unchecked {
    counter._value += 1;
  }
}

功能所采用的可变称为计数器？它不是期望的论点吗？我们定义的_ tokenids与较小案例计数器之间的链接在哪里？我不知道为什么我觉得这么困惑，但似乎我缺少某些东西（即使我知道它没有缺少，只是没有理解）。

提前致谢。

原文

When we use the Counters library, we init it usually as such

 using Counters for Counters.Counter;
 Counters.Counter private _tokenIds;

so far all good. Using Counters library methods for Counters.Counter (the struct in the library) and assigning _tokenIds to point to that struct. (+-? cool.)

What confuses me is the function definitions inside Counters; i.e

function current(Counter storage counter) internal view returns (uint256) {
  return counter._value;
}

function increment(Counter storage counter) internal {
  unchecked {
    counter._value += 1;
  }
}

The function takes in a varaible called counter ? is it not expecting an argument ?
Where is the link between our defined _tokenIds to the smaller-case counter ?
I don't know why I find this so confusing but it seems like something's missing to me (even tho I know its not missing, just failing to understand).

Thanks in advance.

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