//! Encoding support.
#[cfg(feature = "alloc")]
use alloc::vec::Vec;
/// Support for decoding/encoding signatures as bytes.
pub trait SignatureEncoding:
Clone + Sized + for<'a> TryFrom<&'a [u8]> + TryInto<Self::Repr>
{
/// Byte representation of a signature.
type Repr: 'static + AsRef<[u8]> + Clone + Send + Sync;
/// Encode signature as its byte representation.
fn to_bytes(&self) -> Self::Repr {
self.clone()
.try_into()
.ok()
.expect("signature encoding error")
}
/// Encode signature as a byte vector.
#[cfg(feature = "alloc")]
fn to_vec(&self) -> Vec<u8> {
self.to_bytes().as_ref().to_vec()
}
/// Get the length of this signature when encoded.
fn encoded_len(&self) -> usize {
self.to_bytes().as_ref().len()
}
}