Cool, thanks!
-Palmer Cox
On Mon, Feb 3, 2014 at 10:36 PM, Steven Fackler <sfack...@gmail.com> wrote:
> You can also use a nested pattern:
>
> match reader.read(buf) {
> Ok(cnt) => { /* stuff */ }
> Err(IoError { kind: EndOfFile, .. } => { /* eof stuff */ }
> Err(e) => return Err(e)
> }
>
> Steven Fackler
>
>
> On Mon, Feb 3, 2014 at 10:32 PM, Alex Crichton <a...@crichton.co> wrote:
>
>> I'd recommend one of two solutions, one is a match guard:
>>
>> match reader.read(buf) {
>> Ok(cnt) => { /* ... */ }
>> Err(ref e) if e.kind == io::EndOfFile => { /* ... */ }
>> Err(e) => return Err(e)
>> }
>>
>> and the other would be to home-grow your own macro if you find
>> yourself writing the same pattern frequently.
>>
>> On Mon, Feb 3, 2014 at 7:25 PM, Palmer Cox <palmer...@gmail.com> wrote:
>> > I like this change quite a bit. However, is there a more succinct way
>> than
>> > the following to take an action on EOF:
>> >
>> > match reader.read(buff) {
>> > Ok(cnt) => {
>> > // Do something
>> > }
>> > Err(io_error) => match io_error.kind {
>> > EndOfFile => {
>> > // Do something for EOF
>> > }
>> > _ => return Err(io_error)
>> > }
>> > }
>> >
>> > -Palmer Cox
>> >
>> >
>> >
>> > On Mon, Feb 3, 2014 at 9:19 PM, Alex Crichton <a...@crichton.co> wrote:
>> >>
>> >> > By returning a Result from all function calls, it's not much cleaner
>> >> > to handle errors
>> >>
>> >> Oops, wrong word there, I meant to indicate that it *is* much cleaner
>> >> to handle errors with Result rather than conditions.
>> >> _______________________________________________
>> >> Rust-dev mailing list
>> >> Rust-dev@mozilla.org
>> >> https://mail.mozilla.org/listinfo/rust-dev
>> >
>> >
>> _______________________________________________
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>>
>
>
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