first class values on the jvm are objects On Sat, Nov 4, 2017 at 5:57 PM Didier <didi...@gmail.com> wrote:
> > That said, metadata and its relationship to an object is immutable - an >>> object with different metadata is a different object. One consequence of >>> this is that applying metadata to a lazy sequence will realize the head of >>> the sequence so that both objects can share the same sequence. >>> >> >> What confuses you about it? Is it the "realize the head of the sequence" >> part? >> > > I think I'm firstly confused by the use of the word object. I'm guessing > in this case it refers to things that implement IObj? I'm then confused by > what is meant that an object with different meta is a different object, if > they are still equal? I'm guessing it means that if you change the meta on > an IObj, you get a copy? And then I'm confused as to why that would cause > lazy-seq to realize their head? Can't two lazy-seq share the same head? > > On Saturday, 4 November 2017 11:40:54 UTC-7, James Reeves wrote: > >> On 3 November 2017 at 06:57, Didier <did...@gmail.com> wrote: >> >>> Okay, I can see how I can maybe infer some of that by piecing together >>> the code base, but if there was a book, or a reference somewhere describing >>> more the implementation of Clojure itself I'd be interested to read it, if >>> there is one out there. I'd understand if there's not, I know Clojure has >>> no formal semantic spec. >>> >> >> I don't know of one, I'm afraid. >> >> >>> Also, I guess I'm still confused about that bit: >>> >>> > That said, metadata and its relationship to an object is immutable - >>> an object with different metadata is a different object. One consequence of >>> this is that applying metadata to a lazy sequence will realize the head of >>> the sequence so that both objects can share the same sequence. >>> >> >> What confuses you about it? Is it the "realize the head of the sequence" >> part? >> >> -- >> 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 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. > -- 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.
