#![cfg_attr(fbcode_build, feature(error_generic_member_access))]
#![deny(warnings, missing_docs, clippy::all, rustdoc::broken_intra_doc_links)]
use std::error::Error as StdError;
use std::fmt;
use std::fmt::Debug;
use std::fmt::Display;
use anyhow::Error;
mod slogkv;
pub use crate::slogkv::cause_workaround as cause;
pub use crate::slogkv::SlogKVError;
pub use crate::slogkv::SlogKVErrorKey;
pub use crate::slogkv::SlogKVErrorWithoutBackTrace;
pub mod prelude {
pub use crate::FutureErrorContext;
pub use crate::StreamErrorContext;
}
#[macro_use]
mod macros;
mod context_futures;
mod context_streams;
pub use crate::context_futures::FutureErrorContext;
pub use crate::context_streams::StreamErrorContext;
pub struct DisplayChain<'a>(&'a Error);
impl<'a> From<&'a Error> for DisplayChain<'a> {
fn from(e: &'a Error) -> Self {
DisplayChain(e)
}
}
impl Display for DisplayChain<'_> {
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
let e = self.0;
writeln!(fmt, "Error: {e}")?;
for c in e.chain().skip(1) {
writeln!(fmt, "Caused by: {c}")?;
}
Ok(())
}
}
pub struct Compat<T>(pub T);
impl StdError for Compat<Error> {
fn source(&self) -> Option<&(dyn StdError + 'static)> {
self.0.source()
}
#[cfg(fbcode_build)]
fn provide<'a>(&'a self, request: &mut std::error::Request<'a>) {
request.provide_ref::<std::backtrace::Backtrace>(self.0.backtrace());
}
}
impl Display for Compat<Error> {
fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
Display::fmt(&self.0, formatter)
}
}
impl Debug for Compat<Error> {
fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
Debug::fmt(&self.0, formatter)
}
}