src/macros.rs

   1 /// Like failure's `format_err` but producing a `std::io::Error`.
   2 macro_rules! io_format_err {
   3     ($($msg:tt)+) => {
   4         ::std::io::Error::new(::std::io::ErrorKind::Other, format!($($msg)+))
   5     };
   6 }
   7
   8 /// Like failure's `bail` but producing a `std::io::Error`.
   9 macro_rules! io_bail {
  10     ($($msg:tt)+) => {{
  11         return Err(io_format_err!($($msg)+));
  12     }};
  13 }
  14
  15 /// Our dependency on `futures` is optional.
  16 macro_rules! ready {
  17     ($expr:expr) => {{
  18         match $expr {
  19             std::task::Poll::Ready(r) => r,
  20             std::task::Poll::Pending => return std::task::Poll::Pending,
  21         }
  22     }};
  23 }