use sbor::rust::borrow::ToOwned;
use sbor::rust::fmt;
use sbor::rust::str::FromStr;
use sbor::rust::string::String;
use sbor::rust::vec::Vec;
use sbor::*;
use utils::copy_u8_array;
#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
#[derive(Clone, Copy, PartialEq, Eq, Hash, Sbor)]
pub struct Ed25519Signature(
#[cfg_attr(feature = "serde", serde(with = "hex::serde"))] pub [u8; Self::LENGTH],
);
impl Ed25519Signature {
pub const LENGTH: usize = 64;
pub fn to_vec(&self) -> Vec<u8> {
self.0.to_vec()
}
}
impl TryFrom<&[u8]> for Ed25519Signature {
type Error = ParseEd25519SignatureError;
fn try_from(slice: &[u8]) -> Result<Self, Self::Error> {
if slice.len() != Ed25519Signature::LENGTH {
return Err(ParseEd25519SignatureError::InvalidLength(slice.len()));
}
Ok(Ed25519Signature(copy_u8_array(slice)))
}
}
#[derive(Debug, Clone, PartialEq, Eq)]
pub enum ParseEd25519SignatureError {
InvalidHex(String),
InvalidLength(usize),
}
#[cfg(not(feature = "alloc"))]
impl std::error::Error for ParseEd25519SignatureError {}
#[cfg(not(feature = "alloc"))]
impl fmt::Display for ParseEd25519SignatureError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{:?}", self)
}
}
impl FromStr for Ed25519Signature {
type Err = ParseEd25519SignatureError;
fn from_str(s: &str) -> Result<Self, Self::Err> {
let bytes =
hex::decode(s).map_err(|_| ParseEd25519SignatureError::InvalidHex(s.to_owned()))?;
Self::try_from(bytes.as_slice())
}
}
impl fmt::Display for Ed25519Signature {
fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
write!(f, "{}", hex::encode(self.to_vec()))
}
}
impl fmt::Debug for Ed25519Signature {
fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
write!(f, "{}", self)
}
}