File Linked - 控制直接与文件链接的对象

这个库提供了一组对象包装，并将数据绑定到文件。目前使用serde和bincode进行文件序列化和反序列化。

示例

use file_linked::*;
use serde::{Deserialize, Serialize};
use std::fmt;
use std::string::ToString;
use std::path::PathBuf;

#[derive(Deserialize, Serialize)]
struct Test {
    pub a: u32,
    pub b: String,
    pub c: f64
}

let test = Test {
    a: 1,
    b: String::from("two"),
    c: 3.0
};

let file_path = PathBuf::from("./file");

// Object is consumed and can only be interacted with through the FileLinked object
let mut linked_test = FileLinked::new(test, &file_path)?;

// You can obtain a readonly reference of the underlying data
assert_eq!(linked_test.readonly().b, String::from("two"));

// Whenever a mutable operation is performed, the changed data is rewritten to the file
linked_test.mutate(|x| x.a += 1)?;
assert_eq!(linked_test.readonly().a, 2);

drop(linked_test);

// You can also initialize an object from a file
let from_file = FileLinked::<Test>::from_file(&file_path)?;

assert_eq!(from_file.readonly().a, 2);
assert_eq!(from_file.readonly().b, String::from("two"));
assert_eq!(from_file.readonly().c, 3.0);

这个库仍在开发中，缺少一些功能，可能不够稳定

• 目前，在执行任何可变操作后，FileLinked对象将重写整个文件
• 尚未实现自定义序列化器的选择，目前使用的序列化器只是bincode