Class: ExplicitDelegator

Inherits:

Object

• Object
• ExplicitDelegator

Extended by:

Forwardable

Defined in:

lib/explicit_delegator.rb

Direct Known Subclasses

AssessmentFormPresenter, ContentItemPresenter, MenuWidgetPresenter, OutlineAssessmentPresenter, OutlineVideoPresenter, PageHeaderPresenter, ProfileLinkPresenter, ProfilePresenter, WoopleTheme::AnswerPresenter, WoopleTheme::BreadcrumbPresenter, WoopleTheme::ContentItem, WoopleTheme::Dashboard::AccountUserPresenter, WoopleTheme::Dashboard::ExceptionPresenter, WoopleTheme::Dashboard::OrganizationAccountPresenter, WoopleTheme::Dashboard::PointsPresenter, WoopleTheme::Dashboard::SectionPresenter, WoopleTheme::Dashboard::StatusAlertPresenter, WoopleTheme::Dashboard::UserAndStatusPresenter, WoopleTheme::QuestionPresenter, WoopleTheme::Reports::ActivityReportPresenter, WoopleTheme::Reports::ActivityReportsPresenter, WoopleTheme::VideoPresenter

Class Method Summary

• .enforce_definitions(*methods) ⇒ Object

Instance Method Summary

• #enforced_methods ⇒ Object
• #ensure_defined ⇒ Object
• #initialize(delegate) ⇒ ExplicitDelegator constructor

  A new instance of ExplicitDelegator.

Constructor Details

#initialize(delegate) ⇒ ExplicitDelegator

Returns a new instance of ExplicitDelegator.

# File 'lib/explicit_delegator.rb', line 16

def initialize(delegate)
  @delegate = delegate

  ensure_defined
end

Class Method Details

.enforce_definitions(*methods) ⇒ Object

# File 'lib/explicit_delegator.rb', line 6

def self.enforce_definitions(*methods)
  define_method(:enforced_methods) do
    super() | methods
  end

  methods.each do |method|
    def_instance_delegator(:@delegate, method)
  end
end

Instance Method Details

#enforced_methods ⇒ Object

# File 'lib/explicit_delegator.rb', line 22

def enforced_methods
  []
end

#ensure_defined ⇒ Object

# File 'lib/explicit_delegator.rb', line 26

def ensure_defined
  missing_methods = []
  enforced_methods.each do |method|
    missing_methods << method unless @delegate.methods.include?(method)
  end
  raise "Methods required to use #{self.class}: #{missing_methods}" unless missing_methods.empty?
end