Re^3: Common sub as method or function

I've reconsidered my answer, and I wonder if is there any functional difference between:

local *main::timestamp = *Module::Base::timestamp;
[download]

and:

use Module::Base qw(timestamp);
[download]

I think I would lean towards the latter being better practice. It is what I usually do, which makes me wonder why I came up with the local method first...

Comment on Re^3: Common sub as method or function Select or Download Code

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Re^4: Common sub as method or function by akho (Hermit) on Aug 15, 2007 at 16:50 UTC
`use Module::Base qw(timestamp);` [download] is functionally equivalent to `BEGIN { require Module::Base; Module::Base->import('timestamp'); }` [download] So it's at the very least wrapped in a BEGIN block (that is The Thing To Do when using your approach, anyway). It may actually do anything depending on how `Module::Base::import` was defined. It does what you mean when it was created by Exporter and `timestamp` is in `@EXPORT_OK`.	[reply] [d/l] [select]
Re^4: Common sub as method or function by akho (Hermit) on Aug 15, 2007 at 17:06 UTC
Oh, and also: if you only want to import a sub into `main::`, you should not import the whole typeglob. Also, there is probably no need to import into `main::` — `timestamp` is a rather generic name that may be used in some function/module you call, and things will soon get messy. Besides, `local` would be pretty much useless inside a BEGIN block (and that is very desirable). Use `BEGIN { *Module::Derived::timestamp = \&Module::Base::timestamp; }` [download] or something. All this means that symbol table tricks should be severely incapsulated so that no living soul ever sees them Exporter.pm can help remove this mess!	[reply] [d/l] [select]


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