Re^4: Last Line Read? (Any way to use IO::Handle methods on a "First-Class" Filehandle?)

OK, how about this?

$ cat /tmp/io.pl
#!/usr/bin/perl

use strict;
use warnings;
use IO::Handle;

my $filename = shift || $0;
my $fh = IO::Handle->new;
open $fh, $filename or die "failed on $filename: $!\n";
print((\$fh)->input_line_number, "\n") while <$fh>; #1
#print $fh->input_line_number, "\n" while <$fh>; #2
$ perl /tmp/io.pl
Can't call method "input_line_number" on unblessed reference at /tmp/i
+o.pl line 10, <GEN0> line 1.
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The #2 prints the line numbers correctly. Did I miss something? Please shed some light.

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Re^5: Last Line Read? (Any way to use IO::Handle methods on a "First-Class" Filehandle?) by ysth (Canon) on Jun 08, 2007 at 09:11 UTC
Did I miss something? Just that I was trying to answer the parenthetical question in the title. `$ perl - foo use strict; use warnings; use IO::Handle; my $filename = shift \|\| $0; my $fh = do {local *FH}; open $fh, $filename or die "failed on $filename: $!\n"; print((\$fh)->input_line_number, "\n") while <$fh>; #1 #print $fh->input_line_number, "\n" while <$fh>; #2 __END__ Name "main::FH" used only once: possible typo at - line 6. 1 2 3 4 5 6 7 8 9 10` [download]	[reply] [d/l]

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Re^5: Last Line Read? (Any way to use IO::Handle methods on a "First-Class" Filehandle?)
by ysth (Canon) on Jun 08, 2007 at 09:11 UTC

Did I miss something?

$ perl - foo
use strict;
use warnings;
use IO::Handle;

my $filename = shift || $0;
my $fh = do {local *FH};
open $fh, $filename or die "failed on $filename: $!\n";
print((\$fh)->input_line_number, "\n") while <$fh>; #1
#print $fh->input_line_number, "\n" while <$fh>; #2
__END__
Name "main::FH" used only once: possible typo at - line 6.
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