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use std::fmt;
#[cfg(feature = "serde-config")]
use serde::{Deserialize, Serialize};
use crate::error::*;
use crate::serialize::binary::*;
#[cfg_attr(feature = "serde-config", derive(Deserialize, Serialize))]
#[derive(Default, Debug, PartialEq, Eq, Hash, Clone)]
pub struct NULL {
anything: Vec<u8>,
}
impl NULL {
pub const fn new() -> Self {
Self {
anything: Vec::new(),
}
}
pub fn with(anything: Vec<u8>) -> Self {
debug_assert!(!anything.is_empty());
Self { anything }
}
pub fn anything(&self) -> &[u8] {
&self.anything
}
}
pub fn read(decoder: &mut BinDecoder<'_>, rdata_length: Restrict<u16>) -> ProtoResult<NULL> {
let rdata_length = rdata_length.map(|u| u as usize).unverified();
if rdata_length > 0 {
let anything = decoder.read_vec(rdata_length)?.unverified();
Ok(NULL::with(anything))
} else {
Ok(NULL::new())
}
}
pub fn emit(encoder: &mut BinEncoder<'_>, nil: &NULL) -> ProtoResult<()> {
for b in nil.anything() {
encoder.emit(*b)?;
}
Ok(())
}
impl fmt::Display for NULL {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
f.write_str(&data_encoding::BASE64.encode(&self.anything))
}
}
#[cfg(test)]
mod tests {
#![allow(clippy::dbg_macro, clippy::print_stdout)]
use super::*;
#[test]
fn test() {
let rdata = NULL::with(vec![0, 1, 2, 3, 4, 5, 6, 7]);
let mut bytes = Vec::new();
let mut encoder: BinEncoder<'_> = BinEncoder::new(&mut bytes);
assert!(emit(&mut encoder, &rdata).is_ok());
let bytes = encoder.into_bytes();
println!("bytes: {:?}", bytes);
let mut decoder: BinDecoder<'_> = BinDecoder::new(bytes);
let restrict = Restrict::new(bytes.len() as u16);
let read_rdata = read(&mut decoder, restrict).expect("Decoding error");
assert_eq!(rdata, read_rdata);
}
}