On Sunday, February 18, 2018 at 12:47:09 AM UTC-7, Krzysztof Kowalczyk
wrote:
>
> Even simpler:
>
> r, err := try os.Open("blah.text")
>
> Similar to Swift and what Rust used to have.
>
> "try foo()" means: if "foo()" returns an error, return the error to the
> caller.
> If function returns multiple values, it would return zero value for
> non-error values.
>
> I believe now Rust has the following syntax:
>
> r, err := os.Open("blah.text")?
>
> Either way, even less boilerplate.
>
Since the intention is to return on an error, it should only return if the
last return value is a pointer and non-nill, not if any value does not have
its zero value.
There are 8 suggestions under Error Handling in the Go Experience Reports.
This should be written up and posted there if it isn't already covered.
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