[dev] Problems with Readonly.pm

[Oliver Tappe]

Hi there,

trying to conform to 'Perl Best Practices', I have made use of the 'Readonly' 
module in order to declare two constants (page 55 in [the English version of] 
PBP).

However, even after Thomas has fixed a related problem in the CVS-filter, 
that code is still being rejected, because Readonly.pm does not seem to be 
installed on the CVS server.

After having read the complete perldoc of 'Readonly', I am not so sure if we 
should in fact use the module at all, as it seems to impose a considerable 
performance hit (factor 20!) when accessing such constants.

What do you guys think: should we use Readonly (and thus install it on the 
CVS-server) or should we simply dump it and stick with normal package 
variables (which are of course not constant)?

cheers,
	Oliver

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