| // This code exercises the surface area that we expect of the Error generic |
| // member access API. If the current toolchain is able to compile it, then |
| // thiserror is able to provide backtrace support. |
| |
| #![feature(error_generic_member_access)] |
| |
| use std::error::{Error, Request}; |
| use std::fmt::{self, Debug, Display}; |
| |
| struct MyError(Thing); |
| struct Thing; |
| |
| impl Debug for MyError { |
| fn fmt(&self, _formatter: &mut fmt::Formatter) -> fmt::Result { |
| unimplemented!() |
| } |
| } |
| |
| impl Display for MyError { |
| fn fmt(&self, _formatter: &mut fmt::Formatter) -> fmt::Result { |
| unimplemented!() |
| } |
| } |
| |
| impl Error for MyError { |
| fn provide<'a>(&'a self, request: &mut Request<'a>) { |
| request.provide_ref(&self.0); |
| } |
| } |
| |
| // Include in sccache cache key. |
| const _: Option<&str> = option_env!("RUSTC_BOOTSTRAP"); |