Contents

# These extensions allow properly serializing and autoloading of
# Classes, Modules and Structs

require 'yaml'
YAML::ENGINE.yamler = "syck" if defined?(YAML::ENGINE)

class Module
  yaml_as "tag:ruby.yaml.org,2002:module"

  def self.yaml_new(klass, tag, val)
    val.constantize
  end

  def to_yaml( opts = {} )
    YAML::quick_emit( nil, opts ) { |out|
      out.scalar(taguri, self.name, :plain)
    }
  end
  
  def yaml_tag_read_class(name)
    # Constantize the object so that ActiveSupport can attempt
    # its auto loading magic. Will raise LoadError if not successful.
    name.constantize
    name
  end
  
end

class Class
  yaml_as "tag:ruby.yaml.org,2002:class"
  remove_method :to_yaml if respond_to?(:to_yaml) && method(:to_yaml).owner == Class # use Module's to_yaml
end

class Struct
  def self.yaml_tag_read_class(name)
    # Constantize the object so that ActiveSupport can attempt
    # its auto loading magic. Will raise LoadError if not successful.
    name.constantize
    "Struct::#{ name }"
  end
end

Version data entries

2 entries across 2 versions & 2 rubygems

Version	Path
delayed_job_hooked-2.1.5	lib/delayed/yaml_ext.rb
delayed_job-2.1.4	lib/delayed/yaml_ext.rb