Typed declarations?

LanX has asked for the wisdom of the Perl Monks concerning the following question:

I was asked if there are any practical consequences of typed declarations like in the following snippet

my Gearman::Client $self = shift;

AFAI remember it's a placebo ...

(...but I thought it could be traced somehow in the Op-tree, so maybe any applications could be built on it ...)

Any insights?

Cheers Rolf

UPDATE: OK seems like from 5.10 on it's a deprecated fields feature and the syntax remains for backwards compability.

Comment on Typed declarations? Download Code

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Re: Typed declarations? by LanX (Saint) on Apr 28, 2012 at 14:05 UTC
Hmm at least there seems to be a compilation time check for the existance of the package: `lanx@nc10-ubuntu:~$ perl -c -e' my blabla $x;' No such class blabla at -e line 1, near "my blabla" -e had compilation errors.` [download] vs. `lanx@nc10-ubuntu:~$ perl -c -e'{package blabla;} my blabla $x;' -e syntax OK` [download] Cheers Rolf	[reply] [d/l] [select]