others

Functions as Objects, in Ruby

Let's say you need an object that consists of a single function:

require 'others'
x = others(foo: 42) do |*args|
  @foo + args[1]
end
assert(x.bar(10) == 52)

You can also do this in a class:

require 'others'
class Foo
  def foo(a)
    a + 1
  end
  others do |*args|
    args[1] + 10
  end
end
x = Foo.new
assert(x.foo(10) == 11)
assert(x.bar(42) == 52)

For example, you can create a decorator that intercepts all method calls and logs them:

logger = others(base: original_object) do |*args, &block|
  puts "Method #{args[0]} called with #{args[1..-1].inspect}"
  @base.__send__(*args, &block)
end

It also supports forwarding blocks:

x = others(foo: 42) do |*args|
  @foo + args.last.call # this is the block, as the last argument
end
puts x.bar { 12 }  # => 54

How to contribute

Read these guidelines. Make sure your build is green before you contribute your pull request. You will need to have Ruby 3.2+ and Bundler installed. Then:

bundle update
bundle exec rake

If it's clean and you don't see any error messages, submit your pull request.