Contents

# frozen_string_literal: true

class BCDD::Result
  class Error < ::StandardError
    def self.build(**_kargs)
      new
    end

    class NotImplemented < self
    end

    class MissingTypeArgument < self
      def initialize(_arg = nil)
        super('A type (argument) is required to invoke the #on/#on_type method')
      end
    end

    class UnexpectedOutcome < self
      def self.build(outcome:, origin:)
        message =
          "Unexpected outcome: #{outcome.inspect}. The #{origin} must return this object wrapped by " \
          'BCDD::Result::Success or BCDD::Result::Failure'

        new(message)
      end
    end

    class WrongResultSubject < self
      def self.build(given_result:, expected_subject:)
        message =
          "You cannot call #and_then and return a result that does not belong to the subject!\n" \
          "Expected subject: #{expected_subject.inspect}\n" \
          "Given subject: #{given_result.send(:subject).inspect}\n" \
          "Given result: #{given_result.inspect}"

        new(message)
      end
    end

    class WrongSubjectMethodArity < self
      def self.build(subject:, method:)
        new("#{subject.class}##{method.name} has unsupported arity (#{method.arity}). Expected 0 or 1.")
      end
    end
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
bcdd-result-0.3.0	lib/bcdd/result/error.rb
bcdd-result-0.2.0	lib/bcdd/result/error.rb