Alias Object#instance_variable_names to Object#instance_variables for Ruby 1.8.x

2008-04-21 12:03:01 +01:00 · 2008-04-21 12:03:01 +01:00 · 6dbe90dd9b
parent a04f022877
commit 6dbe90dd9b
1 changed files with 6 additions and 2 deletions
--- a/activesupport/lib/active_support/core_ext/object/instance_variables.rb
+++ b/activesupport/lib/active_support/core_ext/object/instance_variables.rb
@ -33,8 +33,12 @@ class Object
  #   end
  #   
  #   C.new(0, 1).instance_variable_names # => ["@y", "@x"]
-  def instance_variable_names
-    instance_variables.map(&:to_s)
+  if RUBY_VERSION >= '1.9'
+    def instance_variable_names
+      instance_variables.map(&:to_s)
+    end
+  else
+    alias_method :instance_variable_names, :instance_variables
  end

  # Copies the instance variables of +object+ into +self+.