Re: write string requires an object with REPR MVMOSHandle

[Elizabeth Mattijsen]

> On 29 Mar 2017, at 12:36, Shlomi Fish  wrote:
> 
> On Wed, 29 Mar 2017 12:10:15 +0200
> Timo Paulssen  wrote:
> 
>> As part of the IOwesome grant, zoffix is going to fix this error. It's
>> what you get when you try to write to or read from or do anything with a
>> closed IO::Handle.
>> 
>> When you use "LEAVE:" you're just declaring a label called "LEAVE".
>> There are no labels with special function, so your code is equivalent to
>> 
>> sub save {
>>my $fh = open('data.txt', :w);
>>ohai: $fh.close;
>>$fh.print("hello\n");
>> }
>> 
>> so you're opening the file, closing the file, then writing to it. That
>> can't work, of course, but the error is also clearly LTA.
>> 
> 
> Hi Timo!
> 
> What does "LTA" stand for in this context? One thing I learned is to avoid
> acronyms as much as possible.

Less Than Awesome



Liz

Re: write string requires an object with REPR MVMOSHandle

[Shlomi Fish]

On Wed, 29 Mar 2017 12:10:15 +0200
Timo Paulssen  wrote:

> As part of the IOwesome grant, zoffix is going to fix this error. It's
> what you get when you try to write to or read from or do anything with a
> closed IO::Handle.
> 
> When you use "LEAVE:" you're just declaring a label called "LEAVE".
> There are no labels with special function, so your code is equivalent to
> 
> sub save {
> my $fh = open('data.txt', :w);
> ohai: $fh.close;
> $fh.print("hello\n");
> }
> 
> so you're opening the file, closing the file, then writing to it. That
> can't work, of course, but the error is also clearly LTA.
> 

Hi Timo!

What does "LTA" stand for in this context? One thing I learned is to avoid
acronyms as much as possible.

Regards,

Shlomi

> HTH
>   - Timo

Re: write string requires an object with REPR MVMOSHandle

[Timo Paulssen]

As part of the IOwesome grant, zoffix is going to fix this error. It's
what you get when you try to write to or read from or do anything with a
closed IO::Handle.

When you use "LEAVE:" you're just declaring a label called "LEAVE".
There are no labels with special function, so your code is equivalent to

sub save {
my $fh = open('data.txt', :w);
ohai: $fh.close;
$fh.print("hello\n");
}

so you're opening the file, closing the file, then writing to it. That
can't work, of course, but the error is also clearly LTA.

HTH
  - Timo

write string requires an object with REPR MVMOSHandle

[Gabor Szabo]

I was running the following buggy code:

sub save {
my $fh = open('data.txt', :w);
LEAVE: $fh.close;
$fh.print("hello\n");
}

save();

(note the : after the LEAVE)
Which if I am not mistaken is basically the same as:


sub save {
my $fh = open('data.txt', :w);
$fh.close;
$fh.print("hello\n");
}

save();


and I kept getting the error in the subject which greatly confused me.

Shouldn't this be something like a "print of closed filehandle" error?

Gabor