Re: This is not a pipe

by hardburn (Abbot)

on Mar 11, 2005 at 19:26 UTC ( [id://438766]=note: print w/replies, xml )

Need Help??

! $this->isa("pipe")
[download]

Syntax is correct, though it will die in runtime because $this is not declared.

"There is no shame in being self-taught, only in not trying to learn in the first place." -- Atrus, Myst: The Book of D'ni.

Comment on Re: This is not a pipe Select or Download Code

Replies are listed 'Best First'.
Re^2: This is not a pipe by jhourcle (Prior) on Mar 13, 2005 at 23:59 UTC
If you're worried about errors, I recommend instead: `! UNIVERSAL::isa($this, 'pipe')` Just in case there's a possibility that `$this` might be undef, or an unblessed scalar.	[reply] [d/l] [select]
Re^3: This is not a pipe by hardburn (Abbot) on Mar 14, 2005 at 14:13 UTC
For poetry, I'm not worried about it. Syntax correctness is all that matters, and putting `UNIVERSAL` in there just adds clutter. "There is no shame in being self-taught, only in not trying to learn in the first place." -- Atrus, Myst: The Book of D'ni.	[reply] [d/l]
Re^2: This is not a pipe by Revelation (Deacon) on Mar 16, 2005 at 22:49 UTC
I think an easier way to prevent it from die-ing, would be to change that to: `!this->isa('pipe');` or `this->isa(!'pipe');` is another possibility. I agree the `Universal::` just add clutter. Gyan Kapur	[reply] [d/l] [select]

In Section Perl Poetry

Domain Nodelet^?

Node Status^?

node history
Node Type: note [id://438766]
help

Chatterbox^?

How do I use this? • Last hour • Other CB clients

Other Users^?

Others meditating upon the Monastery: (7)

As of 2024-04-24 11:31 GMT

Sections^?

Information^?

Find Nodes^?

Leftovers^?

Voting Booth^?

No recent polls found