Did anyone mention operators definition/overloading? I think currently in ATS2, one can only overload a symbol with a function. But I actually prefer how OCaml and Haskell handles operators: they are just functions whose names happen to be symbols instead of alphabets. One use parenthesis around the symbols to define it, and use the symbol without parenthesis to invoke it. I hope ATS3 can have better support for first-class user-defined operators without relying on overloading.
// something like this for any infix operators would be nice fun (?op) (arg1:type1, arg2:type2): type3 = ... val x = y ?op z // use it as infix op by default val x = (?op)(y, z) // temporarily use it as prefix op On Friday, February 9, 2018 at 1:15:22 PM UTC-5, gmhwxi wrote: > > For the moment, I just want to open a thread for ATS3. > > I decided to pick ATS/Xanadu for the full project name. I like the name > Xanadu > because it is poetic and brings a feel of exoticness. > > ATS3 is supposed to be compiled to ATS2. At least at the beginning. I will > try to > write more about what I have in mind regarding ATS3. > > I know that a lot of people have been complaining about the syntax of > ATS2. So > we can start the effort of designing some "nice" syntax for ATS3. Please > feel free > to post here if you would like share your opinions and ideas. > > I will be happy to take the lead but we definitely need to have some form > of community > effort on this project given its size and scope. > > Cheers! > > --Hongwei > > PS: I felt rushed every time up to now when implementing ATS. This time I > am hoping > to have the luxury of thinking about implementation a bit before actually > doing it :) > > -- You received this message because you are subscribed to the Google Groups "ats-lang-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to ats-lang-users+unsubscr...@googlegroups.com. To post to this group, send email to ats-lang-users@googlegroups.com. Visit this group at https://groups.google.com/group/ats-lang-users. To view this discussion on the web visit https://groups.google.com/d/msgid/ats-lang-users/07fc31bd-21c0-4d84-bed0-283bd9b40fb8%40googlegroups.com.
