This reverts commit d810b63886f4006d01bca894982bbc867616f37c.
As resiter v0.4.0 does provide this extension now, we don't need it in
the codebase anymore.
This extension traits help transforming Result<Option<T>, E> to
Result<T, E> or transforming an iterator over the former type to an
iterator over the latter type.
Should be moved to resiter of course, but we need to implement this
first.
Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
With this patch we move the codebase to Rust-2018.
The diff was generated by executing
cargo fix --all --all-features --edition
on the codebase.
Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
I'm not sure why the author added this in the first place, but I bet we
don't need this.
So remove code we do not need. Feel free to prove me wrong and revert
this patch.
Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
When printing the error chain, we print the error and then iterate over
the causes. Hence, we have to increase the printed number by one here,
because 0 (zero) is already printed.
Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
This patch removes the magic constant we used when calling
`trace_unwrap_exit()` or `map_err_trace_exit_unwrap()`.
We used to call it with `1` as parameter, where the number was the exit
code to use. Now the implementation of the function does it
automatically (using 1 (one) as exit code).
All calls of these functions were fixed. Thanks to vim this was easy.
Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
The rust compiler does some fancy things for us: It automatically finds
the right fields if the name of the variable and the file is the same.
Lets use that to reduce boilerplate with this patch.
