pub trait BitIO {
// Required methods
fn to_bit(&self) -> Vec<u8> ⓘ;
fn from_bit(a: &[u8]) -> Self;
}Expand description
将数据从原来的形式与字节形式之间进行转换
对基础的数字类型、Vec、String进行了实现
对于其他自定义类型，需要手动实现该trait，如：
use network_flow::io::BitIO;
use std::mem::size_of;
struct MyStruct {
a : String,
b : u32,
c : Vec<String>
}
impl BitIO for MyStruct {
fn to_bit(&self) -> Vec<u8> {
let mut temp = self.a.to_bit();
let mut res = temp.len().to_bit();
res.append(&mut temp);
res.append(&mut self.b.to_bit());
res.append(&mut self.c.to_bit());
res
}
fn from_bit(a : &[u8]) -> Self {
let mut temp = size_of::<usize>();
let len = usize::from_bit(a);
let temp1 = String::from_bit(&a[temp..]);
temp = temp + len;
let temp2 = u32::from_bit(&a[temp..]);
temp = temp + size_of::<u32>();
let temp3 = Vec::<String>::from_bit(&a[temp..]);
MyStruct { a: temp1, b: temp2, c: temp3 }
}
}使用实现了该trait的类型构建的图，可以进行自动的文件输入输出，保存当前图中的状态或者读取原来的图的状态。
Required Methods§
Dyn Compatibility§
This trait is not dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.