Module: SmartInit

Included in:
Base
Defined in:
lib/smart_init.rb,
lib/smart_init/main.rb,
lib/smart_init/version.rb

Defined Under Namespace

Classes: Base

Constant Summary collapse

VERSION = 
"5.0.2"

Instance Method Summary collapse

Instance Method Details

#initialize_with_hash(*required_attrs, **attributes_and_options) ⇒ Object Also known as: initialize_with 



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# File 'lib/smart_init/main.rb', line 16

def initialize_with_hash(*required_attrs, **attributes_and_options)
  public_readers = attributes_and_options.delete(:public_readers) || []
  public_accessors = attributes_and_options.delete(:public_accessors) || []
  if  public_readers == true || public_accessors == true
    public_readers = required_attrs + attributes_and_options.keys
    public_accessors = required_attrs + attributes_and_options.keys if public_accessors == true
  else
    public_readers += public_accessors
  end

  define_method :initialize do |**parameters|
    required_attrs.each do |required_attr|
      unless parameters.has_key?(required_attr)
        raise ArgumentError, "missing required attribute #{required_attr}"
      end
    end
    (required_attrs + attributes_and_options.keys).each do |attribute|
      value = if parameters.has_key?(attribute)
        parameters.fetch(attribute)
      else
        attributes_and_options[attribute]
      end

      instance_variable_set("@#{attribute}", value)
    end
  end

  instance_eval do
    all_readers = (required_attrs + attributes_and_options.keys)
    attr_reader(*all_readers)
    (all_readers - public_readers).each do |reader|
      private reader
    end
    attr_writer(*public_accessors)
  end
end

#is_callable(opts = {}) ⇒ Object 



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# File 'lib/smart_init/main.rb', line 4

def is_callable(opts={})
  method_name = if name_from_opts = opts[:method_name]
    name_from_opts.to_sym
  else
    :call
  end

  define_singleton_method method_name do |**parameters|
    new(**parameters).public_send(method_name)
  end
end