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// Copyright (c) The camino Contributors
// SPDX-License-Identifier: MIT OR Apache-2.0
//! Serde implementations for `Utf8Path`.
//!
//! The Serde implementations for `Utf8PathBuf` are derived, but `Utf8Path` is an unsized type which
//! the derive impls can't handle. Implement these by hand.
use crate::Utf8Path;
use serde::{de, Deserialize, Deserializer, Serialize, Serializer};
use std::fmt;
struct Utf8PathVisitor;
impl<'a> de::Visitor<'a> for Utf8PathVisitor {
type Value = &'a Utf8Path;
fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
formatter.write_str("a borrowed path")
}
fn visit_borrowed_str<E>(self, v: &'a str) -> Result<Self::Value, E>
where
E: de::Error,
{
Ok(v.as_ref())
}
fn visit_borrowed_bytes<E>(self, v: &'a [u8]) -> Result<Self::Value, E>
where
E: de::Error,
{
std::str::from_utf8(v)
.map(AsRef::as_ref)
.map_err(|_| de::Error::invalid_value(de::Unexpected::Bytes(v), &self))
}
}
#[cfg(feature = "serde1")]
impl<'de: 'a, 'a> Deserialize<'de> for &'a Utf8Path {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where
D: Deserializer<'de>,
{
deserializer.deserialize_str(Utf8PathVisitor)
}
}
#[cfg(feature = "serde1")]
impl Serialize for Utf8Path {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
self.as_str().serialize(serializer)
}
}
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