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module Concurrent
module Synchronization
if Concurrent.on_jruby? && Concurrent.java_extensions_loaded?
# @!visibility private
module JRubyAttrVolatile
def self.included(base)
base.extend(ClassMethods)
end
module ClassMethods
def attr_volatile(*names)
names.each do |name|
ivar = :"@volatile_#{name}"
class_eval <<-RUBY, __FILE__, __LINE__ + 1
def #{name}
instance_variable_get_volatile(:#{ivar})
end
def #{name}=(value)
instance_variable_set_volatile(:#{ivar}, value)
end
RUBY
end
names.map { |n| [n, :"#{n}="] }.flatten
end
end
end
# @!visibility private
# @!macro internal_implementation_note
class JRubyObject < AbstractObject
include JRubyAttrVolatile
def initialize
# nothing to do
end
end
end
end
end
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