ikegami++, thanks for pointing out very clearly what the problem was, in terms of contexts.
But as almut++ also pointed out, i'm still thinking it's more a matter of non-DWIM behaviour.
You'd say, well, we've got warnings for that. :)

One of the problems is, if these are equivalent (because of the context imposed on X): 
perl -Mstrict -wE'use constant X => qw(a b c); say "ok" if "a" ~~ X'

[download]
and 
perl -Mstrict -wE'use constant X => qw(a b c); say "ok" if "a" == X'

[download]
that smart match breaks the warning:
Argument "a" isn't numeric in numeric eq (==) at -e line 1.

We could at least work towards a fix for this, maybe ? 

-- 

perl -MLWP::Simple -e'print$_[rand(split(q|%%\n|,
get(q=http://cpan.org/misc/japh=)))]'

[download]

In reply to Re^3: 5.10 smart match behaviour by zgrim
in thread 5.10 smart match behaviour by zgrim

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.