e51d85e078
useless conversion to the same type: `std::vec::Vec<u8>` Change-Id: Idcb16679bb2a3350784965d8d9bbb593c760634e Reviewed-on: https://cl.tvl.fyi/c/depot/+/8615 Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de> Reviewed-by: tazjin <tazjin@tvl.su>
49 lines
1.1 KiB
Rust
49 lines
1.1 KiB
Rust
use data_encoding::BASE64;
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use thiserror::Error;
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// FUTUREWORK: make generic
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#[derive(PartialEq, Eq, Hash, Debug)]
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pub struct B3Digest(Vec<u8>);
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// TODO: allow converting these errors to crate::Error
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#[derive(Error, Debug)]
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pub enum Error {
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#[error("invalid digest length: {0}")]
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InvalidDigestLen(usize),
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}
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impl B3Digest {
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// constructs a [B3Digest] from a [Vec<u8>].
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// Returns an error if the digest has the wrong length.
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pub fn from_vec(value: Vec<u8>) -> Result<Self, Error> {
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if value.len() != 32 {
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Err(Error::InvalidDigestLen(value.len()))
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} else {
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Ok(Self(value))
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}
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}
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// returns a copy of the inner [Vec<u8>].
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pub fn to_vec(&self) -> Vec<u8> {
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self.0.to_vec()
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}
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}
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impl From<&[u8; 32]> for B3Digest {
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fn from(value: &[u8; 32]) -> Self {
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Self(value.to_vec())
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}
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}
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impl Clone for B3Digest {
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fn clone(&self) -> Self {
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Self(self.0.to_owned())
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}
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}
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impl std::fmt::Display for B3Digest {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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write!(f, "b3:{}", BASE64.encode(self.0.as_slice()))
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}
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}
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