ravinggenius

See https://cesquivias.github.io/blog/2014/10/13/writing-a-language-in-truffle-part-1-a-simple-slow-interpreter/.

Also https://mitpress.mit.edu/sicp/full-text/book/book-Z-H-11.html#%_sec_1.2.1.

Usage

(fibonacci 10)

ravinggenius

URL = class {
	@.initialize = => {
		-> (scheme, user, password, host, port, path, query, fragment) {
			@.scheme = scheme
			@.user = user
			@.password = password
			@.host = host
			@.port = port
			@.path = path
			@.query = query

ravinggenius

/**
 * HSL clock
 */

height: 100%;
font: bold 5em/1 Helvetica Neue, sans-serif;
display: flex;
text-align: center;
align-items: center;
justify-content: center;

ravinggenius

[1] module > foo = -> (a, b, c) { a + b + c }
=> {
	-> (a<#< System.Object >>, b<#< System.Object >>, c<#< System.Object >>) { ... }
}

[2] module > foo4 = foo(4)
=> {
	-> (b<#< System.Object >>, c<#< System.Object >>) { ... }
}

ravinggenius

test = System.require('test')

test.group('group name', -> (t) {
  t.test('test name', -> (t) {
    t.expect(1 + 1) toEqual 2
  })

  t.test('failing test', -> (t) {
    t.expect(1 + 1) toEqual 1
  })

ravinggenius

Types And Signatures

All objects have a single .type. Lambdas also have a list of .signatures, each unique, one for each overload. Each signature is a type.

a = 42
b = :rip
c = -> (a) { a + a }
d = -> (a<System.Integer>, b<System.Integer> = 0) { a + b }

ravinggenius

var Hapi = require('hapi');

var server = new Hapi.Server('localhost', 5000);

server.route({
    method: 'GET',
    path: '/',
    handler: function (request, reply) {
        reply('hello world');
    }

ravinggenius

## config/initializers/conf_conf.rb

# load user-specific environment files
# (env* should be added to .gitignore)
[
  Rails.root + "env_#{Rails.env}.rb",
  Rails.root + 'env.rb'
].each do |env_file|
  require env_file if env_file.file?
end

ravinggenius

class FunctionalArray
  attr_reader :head
  attr_reader :tail

  def initialize(*items)
    @head = items.first
    tail = items[1..-1]
    @tail = (tail.count > 0) ? self.class.new(items[1..-1]) : []
  end
  

ravinggenius

Run $ ruby logo.rb in a directory with rip.txt.