ruma_common/serde/duration/
secs.rs

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1//! De-/serialization functions for `Option<std::time::Duration>` objects represented as
2//! milliseconds.
3//!
4//! Delegates to `js_int::UInt` to ensure integer size is within bounds.
5
6use std::time::Duration;
7
8use js_int::UInt;
9use serde::{
10    de::{Deserialize, Deserializer},
11    ser::{Error, Serialize, Serializer},
12};
13
14/// Serializes a Duration to an integer representing seconds.
15///
16/// Will fail if integer is greater than the maximum integer that can be
17/// unambiguously represented by an f64.
18pub fn serialize<S>(duration: &Duration, serializer: S) -> Result<S::Ok, S::Error>
19where
20    S: Serializer,
21{
22    match UInt::try_from(duration.as_secs()) {
23        Ok(uint) => uint.serialize(serializer),
24        Err(err) => Err(S::Error::custom(err)),
25    }
26}
27
28/// Deserializes an integer representing seconds into a Duration.
29///
30/// Will fail if integer is greater than the maximum integer that can be
31/// unambiguously represented by an f64.
32pub fn deserialize<'de, D>(deserializer: D) -> Result<Duration, D::Error>
33where
34    D: Deserializer<'de>,
35{
36    UInt::deserialize(deserializer).map(|secs| Duration::from_secs(secs.into()))
37}
38
39#[cfg(test)]
40mod tests {
41    use std::time::Duration;
42
43    use serde::{Deserialize, Serialize};
44    use serde_json::json;
45
46    #[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
47    struct DurationTest {
48        #[serde(with = "super")]
49        timeout: Duration,
50    }
51
52    #[test]
53    fn deserialize() {
54        let json = json!({ "timeout": 3 });
55
56        assert_eq!(
57            serde_json::from_value::<DurationTest>(json).unwrap(),
58            DurationTest { timeout: Duration::from_secs(3) },
59        );
60    }
61
62    #[test]
63    fn serialize() {
64        let test = DurationTest { timeout: Duration::from_millis(7000) };
65        assert_eq!(serde_json::to_value(test).unwrap(), json!({ "timeout": 7 }));
66    }
67}
ruma_common/serde/duration/secs.rs

ruma_common/serde/duration/
secs.rs
