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Single-item padrange?

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From:
Father Chrysostomos
Date:
October 11, 2014 08:27
Subject:
Single-item padrange?
Message ID:
20141011082726.2219.qmail@lists-nntp.develooper.com
$ ./perl -Ilib -MO=Concise -e 'join my $foo, @_;'
7  <@> leave[1 ref] vKP/REFC ->(end)
1     <0> enter ->2
2     <;> nextstate(main 1 -e:1) v:{ ->3
6     <@> join[t4] vK/2 ->7
3        <0> padrange[$foo:1,2] s/LVINTRO,1 ->4
-        <0> padsv[$foo:1,2] sM/LVINTRO ->4
5        <1> rv2av[t3] lK/1 ->6
4           <#> gv[*_] s ->5
-e syntax OK

What is that padrange for?  Isn't a single padrange slower than a
padsv?  Shouldn't we skip padrange for just 1 var?  (Or 2 maybe?)


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