diff options
Diffstat (limited to 'activesupport/lib/active_support/core_ext/class/attribute.rb')
| -rw-r--r-- | activesupport/lib/active_support/core_ext/class/attribute.rb | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/class/attribute.rb b/activesupport/lib/active_support/core_ext/class/attribute.rb index 1c3d26ead4..1504e18839 100644 --- a/activesupport/lib/active_support/core_ext/class/attribute.rb +++ b/activesupport/lib/active_support/core_ext/class/attribute.rb @@ -72,6 +72,9 @@ class Class instance_reader = options.fetch(:instance_accessor, true) && options.fetch(:instance_reader, true) instance_writer = options.fetch(:instance_accessor, true) && options.fetch(:instance_writer, true) + # We use class_eval here rather than define_method because class_attribute + # may be used in a performance sensitive context therefore the overhead that + # define_method introduces may become significant. attrs.each do |name| class_eval <<-RUBY, __FILE__, __LINE__ + 1 def self.#{name}() nil end |