Class: Alda::Sequence

Inherits:
Event
  • Object
show all
Includes:
EventList
Defined in:
lib/alda-rb/event.rb

Overview

A sequence event. Includes Alda::EventList.

An Alda::EventContainer containing an Alda::Sequence can be created using event list sugar. See Alda::EventList#method_missing.

Alda::Score.new do
  p s{ c; d; e; f }.event.class # => Alda::Sequence
end

There is also a special sequence sugar.

Alda::Score.new do
  p((c d e f).event.class) # => Alda::Sequence
end

The effects of the two examples above are technically the same although actually the generated list of events are slightly different.

Defined Under Namespace

Modules: RefineFlatten

Instance Attribute Summary

Attributes included from EventList

#events, #variables

Attributes inherited from Event

#container, #parent

Class Method Summary collapse

Instance Method Summary collapse

Methods included from EventList

#==, #events_alda_codes, #has_variable?, #import, #initialize, #method_missing, #on_contained, #to_a

Methods inherited from Event

#==, #detach_from_parent, #is_event_of?, #on_contained

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Alda::EventList

Class Method Details

.join(*events) ⇒ Object

:call-seq:

join(*events) -> Alda::Sequence

Creates an Alda::Sequence object by joining events.

The Alda::EventContainer objects are extracted, and the Alda::Sequence objects are flattened.



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# File 'lib/alda-rb/event.rb', line 1160

def self.join *events
	new do
		@events = events.map do |event|
			while event.is_a?(Alda::EventContainer) && event.count == 1 && event.labels.empty?
				event = event.event
			end
			event.is_a?(Alda::Sequence) ? event.events : event
		end.flatten
	end
end

Instance Method Details

#to_alda_code ⇒ Object

:call-seq:

to_alda_code() -> String

Overrides Alda::Event#to_alda_code.



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# File 'lib/alda-rb/event.rb', line 1148

def to_alda_code
	"[#{events_alda_codes}]"
end