hmaddocks

class Memo
  def initialize
    @mutex = Mutex.new
    @values = {}
  end

  def memoize(key = :_default_key)
    raise ArgumentError, "Block is required" unless block_given?

    @mutex.synchronize do

hmaddocks

# frozen_string_literal: true

# Represents an immutable Result object that can contain either a successful value
# or an error message. This implements the Result pattern for handling success/failure
# scenarios in a functional way.
Result = Data.define(:value, :error_message, :creation_location) do
  def self.ok(value)
    new(value: value, error_message: nil, creation_location: caller_locations(1, 1).first)
  end

hmaddocks

# Case 2: Refactor code
class ProjectsCount
  def initialize(projects)
    @projects = projects
  end

  def self.call(projects)
    new(projects).call
  end