mirror of
https://git.proxmox.com/git/rustc
synced 2026-02-04 01:59:04 +00:00
26 lines
727 B
Rust
26 lines
727 B
Rust
use scroll::{ctx, Endian, Pread, BE};
|
|
|
|
#[derive(Debug)]
|
|
struct Data<'a> {
|
|
name: &'a str,
|
|
id: u32,
|
|
}
|
|
|
|
impl<'a> ctx::TryFromCtx<'a, Endian> for Data<'a> {
|
|
type Error = scroll::Error;
|
|
fn try_from_ctx (src: &'a [u8], endian: Endian)
|
|
-> Result<(Self, usize), Self::Error> {
|
|
let name = src.pread::<&'a str>(0)?;
|
|
let id = src.pread_with(name.len()+1, endian)?;
|
|
Ok((Data { name: name, id: id }, name.len()+4))
|
|
}
|
|
}
|
|
|
|
fn main() {
|
|
let bytes = b"UserName\x00\x01\x02\x03\x04";
|
|
let data = bytes.pread_with::<Data>(0, BE).unwrap();
|
|
assert_eq!(data.id, 0x01020304);
|
|
assert_eq!(data.name.to_string(), "UserName".to_string());
|
|
println!("Data: {:?}", &data);
|
|
}
|