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Postings from June 2021
On Sun, 27 Jun 2021 09:55:24 +0000
Nicholas Clark <nick@ccl4.org> wrote:
> ## Minimum perl versions (and encouraging adoption of our new
> features)
>
> We discussed how it's frustrating that each year we ship a new
> version of Perl, but the take up of the improvements is limited
> because folks shipping code to CPAN are reluctant to use them because
> they favour supporting the long tail of older versions. At some
> level, this conflict of incentives actually makes it arguably
> pointless to try to add features/fix the deficiencies of the
> language, which isn't what we want.
Frustrating, indeed.
My personal thoughts on this for my own code are:
New modules: perl >= 5.26. That version chosen because it added
enough core ops to allow `Object::Pad` to support signatures on
methods. Combined with Future::AsyncAwait this combo enables some
seriously nice powerful code like
has $_read_f;
async method read_idx ($idx) {
return (await $_read_f //= $self->_read_rgb)[$idx];
}
Existing modules: perl >= 5.16, for the most part. A few exceptions
exist for really high-river ones (e.g. List::Util, IO::Socket::IP)
but for most of these, taking 5.16 onwards means at least basic
support of try/catch, async/await, Object::Pad via syntax modules,
even though the signatures aren't yet available.
I have so far not yet encountered a case where anyone cared about a
perl older than 5.16.
> ## Footnote - "retroactively disable experimental warnings"
...
Yes - I like the sound of this.
--
Paul "LeoNerd" Evans
leonerd@leonerd.org.uk | https://metacpan.org/author/PEVANS
http://www.leonerd.org.uk/ | https://www.tindie.com/stores/leonerd/
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