[eeps] EEP XXX: Pattern-test operator

[Michael Truog]

Your idea is interesting.  However, doesn't it ruin the simplicity of guards?  It seems as if this proposal would make guards generate side-effects which should impact both testability and optimization opportunities.  Isn't this a concern?

On 04/12/2012 04:51 PM, Erik Søe Sørensen wrote:
> Hello all -
>
> Attached is a proposal to add to the Erlang language an operator which allows for pattern matching to be used in new contexts, in particular within guard expressions.
>
> I hope the writeup to be in the expected format, as well as describing a sufficiently interesting idea.
>
> Regards,
> Erik Søe Sørensen
>
>
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