Module: TrackBallast::Callable

Defined in:
lib/track_ballast/callable.rb

Overview

A module for building callable service classes where exactly one method will ever be called and only the return value of that method matters, not the class instance itself.

Usage

  • Define initialize with the desired arguments

  • Define call with the desired logic

  • Extend the class with this module

Example

class DivideByTwo
  extend TrackBallast::Callable

  def initialize(int)
    @int = int
  end

  def call
    int / 2
  end

  private

  attr_reader :int
end

DivideByTwo.call(10) # => 5

Instance Method Summary collapse

Instance Method Details

#call ⇒ Object 



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# File 'lib/track_ballast/callable.rb', line 37

def call(...)
  new(...).call { yield }
end