fjall_cli/types/prefix_kind.rs
1use fjall::Slice;
2
3#[derive(clap::ValueEnum, Copy, Clone, Debug)]
4#[clap(rename_all = "kebab")]
5pub enum PrefixKind {
6 LenU64Le,
7 LenU64Be,
8}
9
10impl PrefixKind {
11 pub fn write(self, slice: &Slice) -> Vec<u8> {
12 use PrefixKind::*;
13 let len = slice.len();
14 match self {
15 LenU64Le => (len as u64).to_le_bytes().to_vec(),
16 LenU64Be => (len as u64).to_be_bytes().to_vec(),
17 }
18 }
19}