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//! XML is awful.
//!
//! # Examples
//! ```
//! use std::convert::Infallible;
//!
//! use xml_stinks::deserializer::buffered::Buffered as BufferedDeserializer;
//! use xml_stinks::deserializer::{Deserializer, IgnoreEnd};
//! use xml_stinks::tagged::TagStart;
//! use xml_stinks::DeserializeTagged;
//!
//! let mut deserializer =
//! BufferedDeserializer::new("<foo>Baz<bar>DF</bar></foo>".as_bytes());
//!
//! let foo = deserializer.de_tag::<Foo>("foo", IgnoreEnd::No).unwrap();
//!
//! assert_eq!(&foo.name, "Baz");
//! assert_eq!(foo.bar.num, 223);
//!
//! struct Foo
//! {
//! name: String,
//! bar: Bar,
//! }
//!
//! impl DeserializeTagged for Foo
//! {
//! type Error = Infallible;
//!
//! fn deserialize<TDeserializer: Deserializer>(
//! start: &TagStart,
//! deserializer: &mut TDeserializer,
//! ) -> Result<Self, Self::Error>
//! {
//! let name = deserializer.de_text().unwrap();
//!
//! let bar = deserializer.de_tag::<Bar>("bar", IgnoreEnd::No).unwrap();
//!
//! Ok(Self { name, bar })
//! }
//! }
//!
//! struct Bar
//! {
//! num: u32,
//! }
//!
//! impl DeserializeTagged for Bar
//! {
//! type Error = Infallible;
//!
//! fn deserialize<TDeserializer: Deserializer>(
//! start: &TagStart,
//! deserializer: &mut TDeserializer,
//! ) -> Result<Self, Self::Error>
//! {
//! let num = u32::from_str_radix(&deserializer.de_text().unwrap(), 16).unwrap();
//!
//! Ok(Self { num })
//! }
//! }
//! ```
#![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`.
///
/// # Errors
/// Returns `Err` if a `Deserializer` error occurs.
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)),
)
}
}
|
