Add ᐅ piping method to Ruby for an Elixir feel. First parameter must be an object that responds to :call.
MIT License
This adds the ᐅ
method to Ruby. It pipes in the returned value of the left as the first parameter of the
Proc (or anything with :call
defined) on the right.
To enter ᐅ you need to:
Add this line to your application's Gemfile:
gem 'elixirize'
And then execute:
$ bundle
Or install it yourself as:
$ gem install elixirize
def add a, b
a + b
end
subtract = ->a, b{ a - b }
add(4, 5).ᐅ subtract, 15
# => -6
def divide a, b
a / b
end
add(40, 60).ᐅ method(:divide), 20
# => 5
Since Ruby is designed largely to call methods on the object that was returned
I've written the ~
method on Symbol
to allow method calls on the returned
object rather than only being the first parameter passed in.
Example:
s = "a b c d"
val = s.
ᐅ(~:split, " ").
ᐅ(~:join, "-").
ᐅ ~:capitalize
val
# => "A-b-c-d"
You can mix both behaviors without any issue.
This may seem counter intuitive as it's the same thing as just calling the method on the object, but consider this a noticeable refactoring step. If you're designing a project in a manner where you want results piped in as the first parameter then the tilde-symbol will be your TODO reminder to convert/refactor how your code base is implemented.
After checking out the repo, run bin/setup
to install dependencies. Then, run rake test
to run the tests. You can also run bin/console
for an interactive prompt that will allow you to experiment.
To install this gem onto your local machine, run bundle exec rake install
. To release a new version, update the version number in version.rb
, and then run bundle exec rake release
, which will create a git tag for the version, push git commits and tags, and push the .gem
file to rubygems.org.
Bug reports and pull requests are welcome on GitHub at https://github.com/danielpclark/elixirize.
The gem is available as open source under the terms of the MIT License.