Re: Missing comma between maps results in merge
Björn-Egil Dahlberg <[email protected]>
| Newsgroups | gmane.comp.lang.erlang.bugs |
|---|---|
| Message-ID | <[email protected]> |
On 2014-07-01 16:26, Knut Nesheim wrote:
> Hi,
>
> I was recently bitten by a combination of my own mistakes and a
> unexpected syntax with maps. I'm not sure if this is a bug or intended
> behaviour.
>
> 1> #{foo => bar, foo => quux}.
> #{foo => quux}
> 2> #{foo => bar} #{foo => quux}.
> #{foo => quux}
>
> In the second case, two maps are merged due to missing a separating
> comma between them. I would expect it to fail with a syntax error.
It is the same behaviour as for records:
3> rr(t).
[rec]
4> [#rec{foo=bar} #rec{foo=baz}].
[#rec{foo = baz}]
>
> Is this intended behaviour?
The similarity with records is intentional .. but I agree that this
behaviour should be revisited. I'm not convinced of it usefulness.
Thank you for your feedback!
>
> Regards
> Knut
>
>
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