60 lines
2.0 KiB
Rust
60 lines
2.0 KiB
Rust
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/// Implement serde serialization based on the
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/// fmt::Display and std::FromStr traits.
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macro_rules! serde_string_impl {
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($name:ident, $expecting:expr) => {
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#[cfg(feature = "serde")]
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impl<'de> $crate::serde::Deserialize<'de> for $name {
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fn deserialize<D>(deserializer: D) -> Result<$name, D::Error>
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where
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D: $crate::serde::de::Deserializer<'de>,
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{
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use ::std::fmt::{self, Formatter};
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use ::std::str::FromStr;
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struct Visitor;
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impl<'de> $crate::serde::de::Visitor<'de> for Visitor {
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type Value = $name;
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fn expecting(&self, formatter: &mut Formatter) -> fmt::Result {
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formatter.write_str($expecting)
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}
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fn visit_str<E>(self, v: &str) -> Result<Self::Value, E>
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where
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E: $crate::serde::de::Error,
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{
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$name::from_str(v).map_err(E::custom)
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}
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fn visit_borrowed_str<E>(self, v: &'de str) -> Result<Self::Value, E>
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where
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E: $crate::serde::de::Error,
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{
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self.visit_str(v)
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}
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fn visit_string<E>(self, v: String) -> Result<Self::Value, E>
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where
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E: $crate::serde::de::Error,
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{
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self.visit_str(&v)
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}
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}
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deserializer.deserialize_str(Visitor)
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}
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}
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#[cfg(feature = "serde")]
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impl<'de> $crate::serde::Serialize for $name {
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fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
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where
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S: $crate::serde::Serializer,
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{
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serializer.collect_str(&self)
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}
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}
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};
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}
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