Remove use of root level namespace within the lib

This allows the easy creation of Zombie to mutate Mutant.

lib/mutant.rb

@@ -10,36 +10,10 @@ require 'pp'
 
 # Library namespace
 module Mutant
-
-  # Return deep clone of object
-  #
-  # @param [Object] object
-  #
-  # @return [Object] object
-  #
-  # @api private
-  #
-  def self.deep_clone(object)
-    Marshal.load(Marshal.dump(object))
-  end
-  
-  # Check for ruby-1.8 mode
-  #
-  # @return [true]
-  #   returns true if running under 1.8 mode
-  #
-  # @return [false]
-  #   returns false otherwise
-  #
-  # @api private
-  #
-  def self.on_18?
-    RUBY_VERSION == '1.8.7'
-  end
 end
 
 require 'mutant/support/method_object'
-
+require 'mutant/helper'
 require 'mutant/random'
 require 'mutant/mutator'
 require 'mutant/mutation'

lib/mutant/helper.rb

@@ -0,0 +1,37 @@
+module Mutant
+  # Module for support methods
+  #
+  # They would normally be defined on the root namespace.
+  # But it is easier to create the Zombie when there are no
+  # References to the root namespace name within the library.
+  #
+  module Helper
+
+    # Return deep clone of object
+    #
+    # @param [Object] object
+    #
+    # @return [Object] object
+    #
+    # @api private
+    #
+    def self.deep_clone(object)
+      Marshal.load(Marshal.dump(object))
+    end
+    
+    # Check for ruby-1.8 mode
+    #
+    # @return [true]
+    #   returns true if running under 1.8 mode
+    #
+    # @return [false]
+    #   returns false otherwise
+    #
+    # @api private
+    #
+    def self.on_18?
+      RUBY_VERSION == '1.8.7'
+    end
+
+  end
+end

lib/mutant/loader.rb

@@ -24,7 +24,7 @@ module Mutant
     # @api private
     #
     def initialize(root)
-      @root = Mutant.deep_clone(root)
+      @root = Helper.deep_clone(root)
       Rubinius.run_script(compiled_code)
     end
 

lib/mutant/mutator.rb

@@ -44,7 +44,7 @@ module Mutant
     # @api private
     #
     def initialize(node, block)
-      @node, @block = Mutant.deep_clone(node), block
+      @node, @block = Helper.deep_clone(node), block
       IceNine.deep_freeze(@node)
       dispatch
     end

lib/mutant/mutator/if_statement.rb

@@ -65,11 +65,11 @@ module Mutant
       #
       # @api private
       #
-      # Using '!' instead of :! since syntax highlighting in vim does not 
+      # Using :'!' instead of :! since syntax highlighting in vim does not 
       # capture literal symbol.
       #
       def invert(node)
-        if Mutant.on_18?
+        if Helper.on_18?
           return new(Rubinius::AST::Not,node)
         end
 

lib/mutant/runner.rb

@@ -55,9 +55,7 @@ module Mutant
       end
 
       @reporter = options.fetch(:reporter, Reporter::Null)
-
       @errors = []
-
       run
     end
 

spec/unit/mutant/mutator/if_statement/mutation_spec.rb

@@ -10,7 +10,7 @@ describe Mutant::Mutator, 'if statement' do
     mutants << 'if condition; true; else false; end'
 
     # Invert condition
-    if Mutant.on_18?
+    if Mutant::Helper.on_18?
       # Explicitly define ast as 18-mode does swap if and else on parsing when negation condition is 
       # present in condition.
       mutants << [:if, [:not, [:call, [:self], :condition, [:arglist]]], [:true], [:false]]