$obj->method will work on 5.004 at least, and I think on all 5.xxx versions.

As I recall, this feature was broken in a specific version of perl, caused by a wrong commit I think. But I couldn't locate something related to that now with a little Googling.

$foobj->method qw(b a) ;
Ah, that's interesting :) Recent perl (5.10 & 5.8.8) parses that as: 
C:\Users\burak>perl -MO=Deparse -e "$foobj->method  qw(b a)  ;"
$foobj->method('b', 'a');
-e syntax OK

[schultz]$ perl -MO=Deparse -e '$foobj->method  qw(b a)  ;'
$foobj->method('b', 'a');
-e syntax OK
[schultz]$

[download]
it looks like qw() has some magic in it in recent versions

In reply to Re^3: $obj->method v.s. $obj->method() by Burak
in thread $obj->method v.s. $obj->method() by perl5ever

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