mvp

.rubocop.yml

@@ -1,5 +1,6 @@
 require:
   - rubocop-minitest
+  - rubocop-rake
 
 AllCops:
   NewCops: enable

Gemfile

@@ -11,4 +11,5 @@ group :development do
   gem 'rake'
   gem 'rubocop'
   gem 'rubocop-minitest'
+  gem 'rubocop-rake'
 end

Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    simple_monads (0.1.1)
+    simple_monads (0.1.2)
 
 GEM
   remote: https://rubygems.org/
@@ -44,6 +44,8 @@ GEM
     rubocop-minitest (0.35.1)
       rubocop (>= 1.61, < 2.0)
       rubocop-ast (>= 1.31.1, < 2.0)
+    rubocop-rake (0.6.0)
+      rubocop (~> 1.0)
     ruby-progressbar (1.13.0)
     strscan (3.1.0)
     unicode-display_width (2.5.0)
@@ -59,6 +61,7 @@ DEPENDENCIES
   rake
   rubocop
   rubocop-minitest
+  rubocop-rake
   simple_monads!
 
 BUNDLED WITH

Rakefile

@@ -9,6 +9,7 @@ Rake::TestTask.new(:test) do |t|
   t.test_files = FileList['test/**/*_test.rb']
 end
 
+desc 'build and push gem versions'
 task :build_and_push do
   puts "build simple_monads #{SimpleMonads::VERSION}"
   system 'gem build simple_monads.gemspec'

lib/simple_monads.rb

@@ -1,4 +1,15 @@
 # frozen_string_literal: true
 
+require_relative 'simple_monads/failure_object'
+require_relative 'simple_monads/success_object'
+
+# Main module
 module SimpleMonads
+  def Success(object) # rubocop:disable Naming/MethodName
+    SuccessObject.new(object)
+  end
+
+  def Failure(object) # rubocop:disable Naming/MethodName
+    FailureObject.new(object)
+  end
 end

lib/simple_monads/failure_object.rb

@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+module SimpleMonads
+  # failure object
+  class FailureObject
+    attr_reader :object
+
+    def initialize(object)
+      @object = object
+    end
+
+    def failure?
+      true
+    end
+
+    def success?
+      false
+    end
+
+    def inspect
+      "Failure(#{object})"
+    end
+  end
+end

lib/simple_monads/success_object.rb

@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+module SimpleMonads
+  # success object
+  class SuccessObject
+    attr_reader :object
+
+    def initialize(object)
+      @object = object
+    end
+
+    def failure?
+      false
+    end
+
+    def success?
+      true
+    end
+
+    def inspect
+      "Success(#{object})"
+    end
+  end
+end

lib/simple_monads/version.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module SimpleMonads
-  VERSION = '0.1.1'
+  VERSION = '0.1.2'
 end