Class: AudioBookCreator::CascadingArray

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/audio_book_creator/cascading_array.rb

Overview

this fetching from the first array, fetching from the second if nothing is available

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(main, alt) ⇒ CascadingArray

Returns a new instance of CascadingArray.



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# File 'lib/audio_book_creator/cascading_array.rb', line 18

def initialize(main, alt)
  @all = Set.new.merge(main).merge(alt)
  @main = main
  @alt = alt
end

Instance Attribute Details

#all ⇒ Object

Returns the value of attribute all.



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# File 'lib/audio_book_creator/cascading_array.rb', line 16

def all
  @all
end

#alt ⇒ Object

Returns Array the alternative array if this one is empty.

Returns:

  • Array the alternative array if this one is empty



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# File 'lib/audio_book_creator/cascading_array.rb', line 14

def alt
  @alt
end

#main ⇒ Object

Returns Array the alternative array if this one is empty.

Returns:

  • Array the alternative array if this one is empty



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# File 'lib/audio_book_creator/cascading_array.rb', line 10

def main
  @main
end

Instance Method Details

#add_chapter(value) ⇒ Object 



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# File 'lib/audio_book_creator/cascading_array.rb', line 24

def add_chapter(value)
  all << value
  alt << value
end

#add_page(value) ⇒ Object 



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# File 'lib/audio_book_creator/cascading_array.rb', line 33

def add_page(value)
  all << value
  main << value
end

#add_unique_chapter(value) ⇒ Object 



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# File 'lib/audio_book_creator/cascading_array.rb', line 29

def add_unique_chapter(value)
  add_chapter(value) unless include?(value)
end

#add_unique_page(value) ⇒ Object 



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# File 'lib/audio_book_creator/cascading_array.rb', line 38

def add_unique_page(value)
  add_page(value) unless include?(value)
end

#each(&block) ⇒ Object 



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# File 'lib/audio_book_creator/cascading_array.rb', line 42

def each(&block)
  return enum_for unless block_given?
  main.each(&block)
  alt.each(&block)
end

#include?(value) ⇒ Boolean

note: ever included

Returns:

  • (Boolean) 


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# File 'lib/audio_book_creator/cascading_array.rb', line 49

def include?(value)
  all.include?(value)
end

#shift ⇒ Object 



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# File 'lib/audio_book_creator/cascading_array.rb', line 53

def shift
  main.shift || alt.shift
end