2022-09-13: Fuzion September Update

Hi,

Here is this month's update:

Mostly language cleanup, removing old syntax for generics using </>, removing lambda declarations using fun, adding syntax for tuple types, etc.

• Fuzion language
  • tuple types now can be using (A,B,C) syntax, e.g.,

      triple(T type, v T) (T,T,T) is
        (v,v,v)

    is equivalent to

      triple(T type, v T) tuple T T T is
        (v,v,v)

  • function types and lambda expressions can no longer be declared using the fun keyword, but syntax like (i32, bool) -> string or (x,y) -> x + y*3
  • Fuzion grammar cleanup: new rule actual for actual arguments, which could be an expression for a value argument or a type for a type argument
  • Cleanup and simplification in indentation rules for actual arguments and cases in a match-expression.
  • ASCII control codes HT, VT, FF and stray CR are now rejected in the source code.
• base library
  • support for file I/O: adding exists, delete, move, create_dir, etc.
  • added ctrie hash tries.
  • added ascii for ASCII control codes.
  • generally replace generics using </> by type parameters.
  • improved syntax of type-expressions: Now using (list i32).type instead of the awkward list i32 .type. Same for .env.
  • added cache effect to allow a simple caching of results.
• tests
  • Added tests/indentation/indentation and tests/indentation_negative/indentation_negative to illustrate and check Fuzion's indentation rules for code blocks and arguments.
• benchmarks
  • updated to use new syntax for type parameters instead of generics using </>
• language server extension
  • v0.78.1 fixes vast memory usage
• fuziondoc
  • updated to use new syntax for type parameters instead of generics using </>
• general
  • New tokiwa.software website went online.

  • Tokiwa will present Fuzion at this month's Bits & Pretzels Founders Festival!

    

    Meet us in Munich on Monday, September 26
    Cluster: Security & Identity
    Booth number: ST39

Cheers,

--Fridtjof.