tinymist_std/concepts/
marker.rs

1use std::borrow::{Borrow, Cow};
2
3use serde::{Deserializer, Serializer};
4use serde_with::base64::{Base64, Standard};
5use serde_with::formats::Padded;
6use serde_with::{DeserializeAs, SerializeAs};
7
8/// A marker type for serializing and deserializing `Cow<[u8]>` as base64.
9pub struct AsCowBytes;
10
11type StdBase64 = Base64<Standard, Padded>;
12
13impl<'b> SerializeAs<Cow<'b, [u8]>> for AsCowBytes {
14    fn serialize_as<S>(source: &Cow<'b, [u8]>, serializer: S) -> Result<S::Ok, S::Error>
15    where
16        S: Serializer,
17    {
18        let t: &[u8] = source.borrow();
19        StdBase64::serialize_as(&t, serializer)
20    }
21}
22
23impl<'b, 'de> DeserializeAs<'de, Cow<'b, [u8]>> for AsCowBytes {
24    fn deserialize_as<D>(deserializer: D) -> Result<Cow<'b, [u8]>, D::Error>
25    where
26        D: Deserializer<'de>,
27    {
28        let buf: Vec<u8> = StdBase64::deserialize_as(deserializer)?;
29        Ok(Cow::Owned(buf))
30    }
31}
tinymist_std/concepts/marker.rs

tinymist_std/concepts/
marker.rs
