flix

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1/2 The next version of Flix will feature significantly improved effect error messages:

We have moved to Zulip, come talk to us 👇

2/2 As usual, the full changelog is available on GitHub: github.com/flix/flix/rele…

1/2 We are pleased to announce the release of Flix 0.71.0! This is a major release which brings significantly improved Java interoperability, improved pattern match compilation, and other bytecode optimizations.

2/2 Example (B): Flix does not have classes, but we can always implement/extend any Java interface/class using a new object expression, even generic classes. Here we implement Comparator for String:

1/2 There was a lot of interest in our improved Java interoperability, so here are two more examples: Example (A) Flix functions automatically implement appropriate Java functional interfaces, so can be passed as Java SAMs: Here a Flix function is passed to Stream's map:

@__dwr__ It infers the generic types correctly.

@flixlang does it infer by subsequent usage that K=String,V=Integer? or it's just Object,Object?

1/2 We have significantly improved Java interoperability which makes using Java from within Flix near seamless:

2/2 That said, we recommended that Flix programs are written using algebraic effects and handlers, and that Java interoperability is only used to implement effect handlers. Here is a simple example of this idea:

The new syntax is already available today!

After much soul searching and internal deliberations, we have decided to update the Flix syntax to give it a more timeless aesthetic. Here is the new Flix!:

4/4 As usual, the full changelog is available on GitHub: github.com/flix/flix/rele…

3/4 Fs middleware in action:

1/4 We are pleased to announce the release of Flix 0.70.0! This is a major release which introduces a rich set of standard library effects, handlers, and middleware.

2/2 Here withConflictCheck detects whether files are modified between reads and writes, withBackup maintains a .bak file, and `withAtomicWrite` writes to temp file and then moves into place.

1/2 New filesystem effects and middleware coming in the next version:

The Flix VSCode extension now supports single-file, i.e. its possible to open and work on a singe file without having to work within a project.