Merge pull request #44 from sferik/delegate_explicit_conversions

Delegate explicit conversions to nil instead of defining them explicitly

.travis.yml

@@ -1,2 +1,10 @@
-env:
-  - TRAVIS=true
+bundler_args: --without development
+language: ruby
+rvm:
+  - 2.0.0
+  - 2.1.0
+  - ruby-head
+matrix:
+  allow_failures:
+    - rvm: ruby-head
+  fast_finish: true

Gemfile

@@ -3,7 +3,16 @@ source 'https://rubygems.org'
 # Specify your gem's dependencies in naught.gemspec
 gemspec
 
+gem 'rake'
+
+group :development do
+  gem 'guard'
+  gem 'guard-rspec'
+  gem 'guard-bundler'
+end
+
 group :test do
   gem "libnotify"
   gem 'coveralls', require: false
+  gem 'rspec', '~> 2.14'
 end

lib/naught/null_class_builder/commands/define_explicit_conversions.rb

@@ -1,17 +1,13 @@
+require 'forwardable'
 require 'naught/null_class_builder/command'
 
 module Naught::NullClassBuilder::Commands
   class DefineExplicitConversions < ::Naught::NullClassBuilder::Command
     def call
       defer do |subject|
         subject.module_eval do
-          def to_s; ""; end
-          def to_i; 0; end
-          def to_f; 0.0; end
-          def to_c; 0.to_c; end
-          def to_r; 0.to_r; end
-          def to_a; []; end
-          def to_h; {}; end
+          extend Forwardable
+          def_delegators :nil, :to_a, :to_c, :to_f, :to_h, :to_i, :to_r, :to_s
         end
       end
     end

naught.gemspec

@@ -19,9 +19,4 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_development_dependency "bundler", "~> 1.3"
-  spec.add_development_dependency "rake"
-  spec.add_development_dependency "rspec", "~> 2.14"
-  spec.add_development_dependency "guard"
-  spec.add_development_dependency "guard-rspec"
-  spec.add_development_dependency "guard-bundler"
 end