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use std::error::Error;
use std::fmt;
use thiserror::Error;
#[non_exhaustive]
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub enum Unreal4ErrorKind {
Empty,
BadCompression,
BadData,
TrailingData,
InvalidLogEntry,
InvalidXml,
}
impl fmt::Display for Unreal4ErrorKind {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
Self::Empty => write!(f, "empty crash"),
Self::BadCompression => write!(f, "bad compression"),
Self::BadData => write!(f, "invalid crash file contents"),
Self::TrailingData => write!(f, "unexpected trailing data"),
Self::InvalidLogEntry => write!(f, "invalid log entry"),
Self::InvalidXml => write!(f, "invalid xml"),
}
}
}
#[derive(Debug, Error)]
#[error("{kind}")]
pub struct Unreal4Error {
kind: Unreal4ErrorKind,
#[source]
source: Option<Box<dyn Error + Send + Sync + 'static>>,
}
impl Unreal4Error {
pub(crate) fn new<E>(kind: Unreal4ErrorKind, source: E) -> Self
where
E: Into<Box<dyn Error + Send + Sync>>,
{
let source = Some(source.into());
Self { kind, source }
}
pub fn kind(&self) -> Unreal4ErrorKind {
self.kind
}
}
impl From<Unreal4ErrorKind> for Unreal4Error {
fn from(kind: Unreal4ErrorKind) -> Self {
Self { kind, source: None }
}
}
impl From<elementtree::Error> for Unreal4Error {
fn from(source: elementtree::Error) -> Self {
Self::new(Unreal4ErrorKind::InvalidXml, source)
}
}
impl From<scroll::Error> for Unreal4Error {
fn from(source: scroll::Error) -> Self {
Self::new(Unreal4ErrorKind::BadData, source)
}
}