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use crate::Error;
use eyre::{Result, WrapErr};
use serde::{de, Deserialize};
use std::convert::TryInto;
use subtle_encoding::bech32;
pub const ADDRESS_SIZE: usize = 20;
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
pub struct Address(pub [u8; ADDRESS_SIZE]);
impl Address {
pub fn from_bech32(addr_bech32: impl AsRef<str>) -> Result<(String, Address)> {
let (hrp, addr) = bech32::decode(addr_bech32.as_ref())?;
if addr.len() != ADDRESS_SIZE {
return Err(Error::Address).wrap_err_with(|| {
format!(
"invalid length for decoded address: {} (expected {})",
addr.len(),
ADDRESS_SIZE
)
});
}
Ok((hrp, Address(addr.as_slice().try_into().unwrap())))
}
pub fn to_bech32(&self, hrp: &str) -> String {
bech32::encode(hrp, &self.0)
}
}
impl AsRef<[u8]> for Address {
fn as_ref(&self) -> &[u8] {
&self.0
}
}
impl From<[u8; ADDRESS_SIZE]> for Address {
fn from(addr: [u8; ADDRESS_SIZE]) -> Address {
Address(addr)
}
}
impl From<Address> for [u8; ADDRESS_SIZE] {
fn from(addr: Address) -> [u8; ADDRESS_SIZE] {
addr.0
}
}
impl<'de> Deserialize<'de> for Address {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where
D: de::Deserializer<'de>,
{
let bech32_addr = String::deserialize(deserializer)?;
let (_, addr) = Self::from_bech32(&bech32_addr).map_err(|_| {
de::Error::custom(format!("invalid bech32-encoded address: {}", bech32_addr))
})?;
Ok(addr)
}
}