Something like this has also passed through my head. What about use Test :ALL<&is &ok> or use Test :SOME-TAG<&foo &bar>.
so you can filter out what you want with arguments to the tag. This seems to be better and more backwards-compy because with current rakudo use Test :ALL<&is &ok> will still work (it will just do a normal :ALL import). Zoffix++ for bringing this up. also, I think that require could be adapted to work like this. Right now require can only import from DEFAULT which seems like a needless restriction (the design docs seem a little confused on this point). require Test <&is &ok>, :SOME-TAG<&foo &bar>; I think it's a good feature and importing would be much more consistent. LL On Sat, May 7, 2016 at 11:12 AM Zoffix Znet <perl6-bugs-follo...@perl.org> wrote: > # New Ticket Created by Zoffix Znet > # Please include the string: [perl #128090] > # in the subject line of all future correspondence about this issue. > # <URL: https://rt.perl.org/Ticket/Display.html?id=128090 > > > > Currently, there seems to be no easy way to import only specific symbols > from a module *at compile time*. > > For example, if I want to use a module that exports a whole ton of > functions but I only one just one, I have to write something complicated > like this: > > need Test; > my &is := &Test::EXPORT::DEFAULT::is; > > This difficulty will result in many programmers trashing their namespaces > out of convenience, resulting in hard-to-find bugs, especially when newer > version of `use`d module introduces new subs. > > I propose we create another reserved import tag :SYM that will take a list > of SYMbols we want to import, eg: > > use Test :SYM<&is &ok>; > > Although I'm ignorant of the implementation of the :ALL tag, I'd think > implementing :SYM would be similar (you'd just grep for wanted symbols). > > Relevant IRC conversation: > http://irclog.perlgeek.de/perl6/2016-05-07#i_12446098 >
