tanzim_source/
serde.rs

1//! [`serde`] support (`serde` Cargo feature).
2//!
3//! [`Source`] serializes and deserializes as its canonical string form.
4
5use crate::Source;
6use serde::{
7    Deserialize, Deserializer, Serialize, Serializer,
8    de::{self, Visitor},
9};
10use std::fmt;
11
12impl Serialize for Source {
13    fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
14        serializer.serialize_str(&self.to_string())
15    }
16}
17
18impl<'de> Deserialize<'de> for Source {
19    fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
20        deserializer.deserialize_str(SourceVisitor)
21    }
22}
23
24struct SourceVisitor;
25
26impl<'de> Visitor<'de> for SourceVisitor {
27    type Value = Source;
28
29    fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
30        formatter.write_str("a configuration source string such as `env(prefix=APP)`")
31    }
32
33    fn visit_str<E: de::Error>(self, value: &str) -> Result<Self::Value, E> {
34        Source::parse(value).map_err(|error| E::custom(error.to_string()))
35    }
36
37    fn visit_string<E: de::Error>(self, value: String) -> Result<Self::Value, E> {
38        self.visit_str(value.as_str())
39    }
40}
tanzim_source/serde.rs

tanzim_source/
serde.rs
