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| 1 | +use crate::serialization::{Bech32Conversion, Bech32WithHrp}; |
| 2 | +use anyhow::Error; |
| 3 | +use hex::{FromHex, FromHexError}; |
| 4 | +use serde_with::{hex::Hex, serde_as}; |
| 5 | +use std::ops::Deref; |
| 6 | + |
| 7 | +macro_rules! declare_byte_array_type { |
| 8 | + ($name:ident, $size:expr) => { |
| 9 | + /// $name |
| 10 | + #[serde_as] |
| 11 | + #[derive( |
| 12 | + Default, Debug, Clone, Copy, PartialEq, Eq, Hash, serde::Serialize, serde::Deserialize, |
| 13 | + )] |
| 14 | + pub struct $name(#[serde_as(as = "Hex")] pub [u8; $size]); |
| 15 | + |
| 16 | + impl From<[u8; $size]> for $name { |
| 17 | + fn from(bytes: [u8; $size]) -> Self { |
| 18 | + Self(bytes) |
| 19 | + } |
| 20 | + } |
| 21 | + |
| 22 | + impl FromHex for $name { |
| 23 | + type Error = FromHexError; |
| 24 | + |
| 25 | + fn from_hex<T: AsRef<[u8]>>(hex: T) -> Result<Self, Self::Error> { |
| 26 | + Ok(match Self::try_from(Vec::<u8>::from_hex(hex)?) { |
| 27 | + Ok(b) => Ok(b), |
| 28 | + Err(_) => Err(FromHexError::InvalidStringLength), |
| 29 | + }?) |
| 30 | + } |
| 31 | + } |
| 32 | + |
| 33 | + impl TryFrom<Vec<u8>> for $name { |
| 34 | + type Error = Vec<u8>; |
| 35 | + fn try_from(vec: Vec<u8>) -> Result<Self, Self::Error> { |
| 36 | + Ok($name(vec.try_into()?)) |
| 37 | + } |
| 38 | + } |
| 39 | + |
| 40 | + impl TryFrom<&[u8]> for $name { |
| 41 | + type Error = std::array::TryFromSliceError; |
| 42 | + fn try_from(arr: &[u8]) -> Result<Self, Self::Error> { |
| 43 | + Ok($name(arr.try_into()?)) |
| 44 | + } |
| 45 | + } |
| 46 | + |
| 47 | + impl AsRef<[u8]> for $name { |
| 48 | + fn as_ref(&self) -> &[u8] { |
| 49 | + &self.0 |
| 50 | + } |
| 51 | + } |
| 52 | + |
| 53 | + impl Deref for $name { |
| 54 | + type Target = [u8; $size]; |
| 55 | + fn deref(&self) -> &Self::Target { |
| 56 | + &self.0 |
| 57 | + } |
| 58 | + } |
| 59 | + }; |
| 60 | +} |
| 61 | + |
| 62 | +macro_rules! declare_byte_array_type_with_bech32 { |
| 63 | + ($name:ident, $size:expr, $hrp:expr) => { |
| 64 | + declare_byte_array_type!($name, $size); |
| 65 | + impl Bech32Conversion for $name { |
| 66 | + fn to_bech32(&self) -> Result<String, anyhow::Error> { |
| 67 | + self.0.to_vec().to_bech32_with_hrp($hrp) |
| 68 | + } |
| 69 | + fn from_bech32(s: &str) -> Result<Self, anyhow::Error> { |
| 70 | + match Vec::<u8>::from_bech32_with_hrp(s, $hrp) { |
| 71 | + Ok(v) => match Self::try_from(v) { |
| 72 | + Ok(s) => Ok(s), |
| 73 | + Err(_) => Err(Error::msg(format!( |
| 74 | + "Bad vector input to {}", |
| 75 | + stringify!($name) |
| 76 | + ))), |
| 77 | + }, |
| 78 | + Err(e) => Err(e), |
| 79 | + } |
| 80 | + } |
| 81 | + } |
| 82 | + }; |
| 83 | +} |
| 84 | + |
| 85 | +declare_byte_array_type!(BlockHash, 32); |
| 86 | + |
| 87 | +declare_byte_array_type!(TxHash, 32); |
| 88 | + |
| 89 | +declare_byte_array_type_with_bech32!(VRFKey, 32, "vrf_vk"); |
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