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Contents
# frozen_string_literal: true
require_relative "constants"
require_relative "errors"
module Hanami
# Calls `configure_for_slice(slice)` on the extended class whenever it is first
# subclassed within a module namespace corresponding to a slice.
#
# @example
# class BaseClass
# extend Hanami::SliceConfigurable
# end
#
# # slices/main/lib/my_class.rb
# module Main
# class MyClass < BaseClass
# # Will be called with `Main::Slice`
# def self.configure_for_slice(slice)
# # ...
# end
# end
# end
#
# @api private
# @since 2.0.0
module SliceConfigurable
class << self
def extended(klass)
slice_for = method(:slice_for)
inherited_mod = Module.new do
define_method(:inherited) do |subclass|
unless Hanami.app?
raise ComponentLoadError, "Class #{klass} must be defined within an Hanami app"
end
super(subclass)
subclass.instance_variable_set(:@configured_for_slices, configured_for_slices.dup)
slice = slice_for.(subclass)
return unless slice
unless subclass.configured_for_slice?(slice)
subclass.configure_for_slice(slice)
subclass.configured_for_slices << slice
end
end
end
klass.singleton_class.prepend(inherited_mod)
end
private
def slice_for(klass)
return unless klass.name
slices = Hanami.app.slices.with_nested + [Hanami.app]
slices.detect { |slice| klass.name.start_with?("#{slice.namespace}#{MODULE_DELIMITER}") }
end
end
def configure_for_slice(slice); end
def configured_for_slice?(slice)
configured_for_slices.include?(slice)
end
def configured_for_slices
@configured_for_slices ||= []
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems