module Elevate
  # A blank slate for hosting task blocks.
  #
  # Because task blocks run in another thread, it is dangerous to expose them
  # to the calling context. This class acts as a sandbox for task blocks. 
  #
  # @api private
  class TaskContext
    def initialize(args, &block)
      metaclass = class << self; self; end
      metaclass.send(:define_method, :execute, &block)

      args.each do |key, value|
        instance_variable_set("@#{key}", value)
      end
    end
  end
end