Class: Tensai::Util::Initializer

Inherits:
Module
  • Object
show all
Defined in:
lib/tensai/util/initializer.rb

Overview

Include in classes to insert boilerplate constructor, dry-types typecheck and getters

Defined Under Namespace

Classes: InitializeMethod

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(**args) ⇒ Initializer

Returns a new instance of Initializer.



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# File 'lib/tensai/util/initializer.rb', line 13

def initialize(**args)
  @args = args
end

Instance Attribute Details

#args ⇒ Object (readonly)

Returns the value of attribute args.



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# File 'lib/tensai/util/initializer.rb', line 11

def args
  @args
end

Instance Method Details

#included(klass) ⇒ Object

rubocop:disable Metrics/MethodLength, Metrics/AbcSize



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# File 'lib/tensai/util/initializer.rb', line 17

def included(klass) # rubocop:disable Metrics/MethodLength, Metrics/AbcSize
  this_class_args = args
  all_args = all_args_for(klass)

  klass.instance_eval do
    define_method :__check_argument_type do |argument, value|
      type = all_args[argument]
      if type.default? && value.nil?
        instance_variable_set("@#{argument}".to_sym, type[])
      else
        type[value]
      end
    end

    define_method :after_initialize, -> {}

    attr_reader(*this_class_args.keys)
  end

  klass.class_eval InitializeMethod.new(all_args).code, __FILE__, __LINE__ + 11
end