Is it an absolute requirement to have all the code within the while/for expression? I.e. is the following acceptable: 
my $iter = TQDM::tqdm(1..10);

while (<$iter>) {
    print "got [$_]\n";
}

[download]
If so, then the behaviour you want is easily achieved using overloaded '<>'.

Otherwise, I think you need a custom iterator function, e.g. 

sub iterate ($&) {
    my ($ary, $code) = @_;
    for (@$ary) {
        print "progress bar: $_\n";
        $code->();
    }
}

sub tqdm { bless [ @_ ] }

iterate tqdm(1..10), sub {
    print "got [$_]\n";
};

[download]

Dave.

In reply to Re: Getting for() to accept a tied array in one statement by dave_the_m
in thread Getting for() to accept a tied array in one statement by perlancar

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