[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index] [Thread Index] - Subject: Re: Packaging and importing
- From: Mark Hamburg <mhamburg@...>
- Date: Sun, 14 Aug 2005 21:02:50 -0700
One problem with having module auto-populate the global namespace is that it encourages the creation of inefficient and fragile Lua code. The efficient path: local foo = require "foo" for k = 1, 10 do foo.bar( k ) end The inefficient path: require "foo" for k = 1, 10 do foo.bar( k ) end The fragile path: -- Fortunately, someone else seems to have always required foo. for k = 1, 10 do foo.bar( k ) end And, to end on a positive note, the really efficient path: local foo = require "foo" local bar = foo.bar for k = 1, 10 do bar( k ) end I don't have a good answer for how to encourage people to use the last form, but it's a simple change to module to get them to use the first form. If we're going to worry about Lua efficiency and how well it does on shootouts, it might be a good idea to try to promote the writing of efficient Lua code. Mark
