There's probably also a difference in what happens if the form is empty. The current impl results in a compile error about calling nil, whereas the suggested implementation would result in calling the current thread value as a function, I think.
On Saturday, January 26, 2019 at 5:13:23 PM UTC-6, Sean Corfield wrote: > > I suspect it’s done for consistency with the source of -> (which has to > use first/next because it threads the expression between them) – using > first/next/x in ->> is therefore a closer parallel to using first/x/next in > -> so it’s easier to see the similarity (and correctness) of the code. > > > > Sean Corfield -- (970) FOR-SEAN -- (904) 302-SEAN > An Architect's View -- http://corfield.org/ > > "If you're not annoying somebody, you're not really alive." > -- Margaret Atwood > > > ------------------------------ > *From:* clo...@googlegroups.com <javascript:> <clo...@googlegroups.com > <javascript:>> on behalf of James Reeves <ja...@booleanknot.com > <javascript:>> > *Sent:* Saturday, January 26, 2019 11:08:25 AM > *To:* clo...@googlegroups.com <javascript:> > *Subject:* Re: Noob question on the --> macro implementation > > I believe he's just saying it's simpler and possibly more efficient. > > Unless I'm missing something subtle in the way this is resolved, I believe > Ujjwal is right that: > > `(~(first form) ~@(next form) ~x) > > Is equivalent to: > > `(~@form ~x) > > On Sat, 26 Jan 2019 at 19:04, Andy Fingerhut <andy.fi...@gmail.com > <javascript:>> wrote: > >> When you ask "am I right?" about your proposed change, what is it that >> the current behavior does not do, that your change would do? Do you have >> some use case in mind that works with your change, but doesn't with the >> current implementation? >> >> Andy >> >> On Sat, Jan 26, 2019 at 10:50 AM Ujjwal Thaakar <ujjwal...@gmail.com >> <javascript:>> wrote: >> >>> Hi, >>> I'm trying to learn Clojure and I just curiously typed >>> (source ->>) >>> in the REPL and was wondering about this: >>> https://github.com/clojure/clojure/commit/749a0ad8b66c781d8176833f0ad26cfe6b9b24e3#r32075784 >>> >>> Am I missing something? >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Clojure" group. >>> To post to this group, send email to clo...@googlegroups.com >>> <javascript:> >>> Note that posts from new members are moderated - please be patient with >>> your first post. >>> To unsubscribe from this group, send email to >>> clojure+u...@googlegroups.com <javascript:> >>> For more options, visit this group at >>> http://groups.google.com/group/clojure?hl=en >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "Clojure" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to clojure+u...@googlegroups.com <javascript:>. >>> For more options, visit https://groups.google.com/d/optout. >>> >> -- >> You received this message because you are subscribed to the Google >> Groups "Clojure" group. >> To post to this group, send email to clo...@googlegroups.com >> <javascript:> >> Note that posts from new members are moderated - please be patient with >> your first post. >> To unsubscribe from this group, send email to >> clojure+u...@googlegroups.com <javascript:> >> For more options, visit this group at >> http://groups.google.com/group/clojure?hl=en >> --- >> You received this message because you are subscribed to the Google Groups >> "Clojure" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to clojure+u...@googlegroups.com <javascript:>. >> For more options, visit https://groups.google.com/d/optout. >> > > > -- > James Reeves > booleanknot.com > > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clo...@googlegroups.com <javascript:> > Note that posts from new members are moderated - please be patient with > your first post. > To unsubscribe from this group, send email to > clojure+u...@googlegroups.com <javascript:> > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en > --- > You received this message because you are subscribed to the Google Groups > "Clojure" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to clojure+u...@googlegroups.com <javascript:>. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
