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//! XML is awful.
#![deny(clippy::all, clippy::pedantic, unsafe_code, missing_docs)]
use crate::deserializer::{Deserializer, Error as DeserializerError, MaybeStatic};
use crate::tagged::TagStart;
pub mod attribute;
pub mod deserializer;
pub mod escape;
pub mod tagged;
mod event;
mod util;
/// Trait implemented by types that want to be deserializable from tagged XML elements.
pub trait DeserializeTagged: Sized + MaybeStatic
{
/// Error type.
type Error: std::error::Error + Send + Sync + 'static;
/// Deserializes into a new `Self`.
///
/// # Errors
/// When or if a error is returned is decided by the type implementing this trait.
fn deserialize<TDeserializer: Deserializer>(
start: &TagStart,
deserializer: &mut TDeserializer,
) -> Result<Self, Self::Error>;
}
/// Result extension.
pub trait ResultExt<Value, DeError>
{
/// Returns `Ok(None)` if `Err` is `DeserializerError::UnexpectedEvent`.
fn try_event(self) -> Result<Option<Value>, DeserializerError<DeError>>;
}
impl<Value, DeError> ResultExt<Value, DeError>
for Result<Value, DeserializerError<DeError>>
{
fn try_event(self) -> Result<Option<Value>, DeserializerError<DeError>>
{
self.map_or_else(
|err| {
if let DeserializerError::UnexpectedEvent {
expected_event_name: _,
found_event: _,
} = err
{
return Ok(None);
}
Err(err)
},
|value| Ok(Some(value)),
)
}
}
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