Class: Cucumber::Core::Event

Inherits:
Object
  • Object
show all
Defined in:
lib/cucumber/core/event.rb

Class Method Summary collapse

Class Method Details

.event_id ⇒ Symbol

Returns the underscored name of the class to be used as the key in an event registry.

Returns:

  • (Symbol) —

    the underscored name of the class to be used as the key in an event registry



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# File 'lib/cucumber/core/event.rb', line 42

def event_id
  underscore(name.split('::').last).to_sym
end

.new(*events) ⇒ Object

Macro to generate new sub-classes of Cucumber::Core::Event with attribute readers.



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# File 'lib/cucumber/core/event.rb', line 8

def self.new(*events)
  # Use normal constructor for subclasses of Event
  return super if ancestors.index(Event) > 0

  Class.new(Event) do
    # NB: We need to use metaprogramming here instead of direct variable obtainment
    # because JRuby does not guarantee the order in which variables are defined is equivalent
    # to the order in which they are obtainable
    #
    # See https://github.com/jruby/jruby/issues/7988 for more info
    attr_reader(*events)

    define_method(:initialize) do |*attributes|
      events.zip(attributes) do |name, value|
        instance_variable_set("@#{name}".to_sym, value)
      end
    end

    define_method(:attributes) do
      events.map { |var| instance_variable_get(:"@#{var}") }
    end

    define_method(:to_h) do
      events.zip(attributes).to_h
    end

    def event_id
      self.class.event_id
    end
  end
end