oak_core/
serde_range.rs

1//! Serde support for `core::range::Range`.
2
3#[cfg(feature = "serde")]
4use core::range::Range;
5#[cfg(feature = "serde")]
6use serde::{Deserialize, Deserializer, Serialize, Serializer};
7
8#[cfg(feature = "serde")]
9#[derive(Serialize, Deserialize)]
10struct RangeDef<T> {
11    start: T,
12    end: T,
13}
14
15#[cfg(feature = "serde")]
16#[derive(Serialize)]
17struct RangeDefRef<'a, T> {
18    start: &'a T,
19    end: &'a T,
20}
21
22/// Serializes a `Range<T>`.
23#[cfg(feature = "serde")]
24pub fn serialize<S, T>(value: &Range<T>, serializer: S) -> Result<S::Ok, S::Error>
25where
26    S: Serializer,
27    T: Serialize,
28{
29    RangeDefRef { start: &value.start, end: &value.end }.serialize(serializer)
30}
31
32/// Deserializes a `Range<T>`.
33#[cfg(feature = "serde")]
34pub fn deserialize<'de, D, T>(deserializer: D) -> Result<Range<T>, D::Error>
35where
36    D: Deserializer<'de>,
37    T: Deserialize<'de>,
38{
39    let def = RangeDef::<T>::deserialize(deserializer)?;
40    Ok(Range { start: def.start, end: def.end })
41}
42
43/// Serde support for `Option<Range<T>>`.
44#[cfg(feature = "serde")]
45pub mod option {
46    use super::{RangeDef, RangeDefRef};
47    use core::range::Range;
48    use serde::{Deserialize, Deserializer, Serialize, Serializer};
49
50    /// Serializes an `Option<Range<T>>`.
51    pub fn serialize<S, T>(value: &Option<Range<T>>, serializer: S) -> Result<S::Ok, S::Error>
52    where
53        S: Serializer,
54        T: Serialize,
55    {
56        match value {
57            Some(r) => Some(RangeDefRef { start: &r.start, end: &r.end }).serialize(serializer),
58            None => Option::<RangeDef<T>>::None.serialize(serializer),
59        }
60    }
61
62    /// Deserializes an `Option<Range<T>>`.
63    pub fn deserialize<'de, D, T>(deserializer: D) -> Result<Option<Range<T>>, D::Error>
64    where
65        D: Deserializer<'de>,
66        T: Deserialize<'de>,
67    {
68        let def = Option::<RangeDef<T>>::deserialize(deserializer)?;
69        Ok(def.map(|d| Range { start: d.start, end: d.end }))
70    }
71}
oak_core/serde_range.rs

oak_core/
serde_range.rs
