/
inheritable.rb
54 lines (51 loc) · 1004 Bytes
/
inheritable.rb
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module Lotus
module Mailer
# Inheriting mechanisms
#
# @since 0.1.0
module Inheritable
# Register a mailer subclass
#
# @api private
# @since 0.1.0
#
# @example
# require 'lotus/mailer'
#
# class IndexMailer
# include Lotus::Mailer
# end
#
# class JsonIndexMailer < IndexMailer
# end
def inherited(base)
subclasses.add base
end
# Set of registered subclasses
#
# @api private
# @since 0.1.0
def subclasses
@@subclasses ||= Set.new
end
protected
# Loading mechanism hook.
#
# @api private
# @since 0.1.0
#
# @see Lotus::Mailer.load!
def load!
subclasses.freeze
mailers.freeze
end
# Registered mailers
#
# @api private
# @since 0.1.0
def mailers
@@mailers ||= [ self ] + subclasses.to_a
end
end
end
end