Bosatsu

[matthew-piziak]

Project description

Bosatsu is a simple, non-turing complete language designed for configuration, queries and scripting.

Here is a working Bosatsu program to solve the first Project Euler problem:

package Euler/One

# see:
# https://projecteuler.net/problem=1
# Find the sum of all the multiples of 3 or 5 below 1000.

operator == = eq_Int
operator % = mod_Int

def operator ||(x, y):
  True if x else y

def keep(i):
  (i % 3 == 0) || (i % 5 == 0)

def sum(as): as.foldLeft(0, add)

# >>> sum(i for i in xrange(1000) if keep_fn(i))
# 233168
computed = [i for i in range(1000) if keep(i)].sum

test = Assertion(computed == 233168, "expected 233168")

Metadata

• homepage URL: https://github.com/johnynek/bosatsu
• source URL: https://github.com/johnynek/bosatsu
• license: Apache License Version 2.0
• platforms: Unix

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[AndersonTorres]

Do we have a stable programming environment for Scala packages?

[AndersonTorres]

I have no idea how to build it in Nixpkgs. I tried to open a simple shell, but the command sbt cli/assembly does a huge download of Maven libraries.

[AndersonTorres]

Chatting about it on Discord, there are two projects about building via SBT:

https://github.com/zaninime/sbt-derivation

https://github.com/gvolpe/sbt-nix.g8

[stale[bot]]

I marked this as stale due to inactivity. → More info