Class: JRuby::ScalaSupport::Tuple

Inherits:
Object
  • Object
show all
Includes:
Common
Defined in:
lib/jruby/scala_support.rb

Instance Method Summary collapse

Methods included from Common

fake_identity, #scala_collection

Constructor Details

#initialize(raw, size) ⇒ Tuple

Returns a new instance of Tuple.



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# File 'lib/jruby/scala_support.rb', line 262

def initialize(raw, size)
  super(raw)
  @size = size
end

Instance Method Details

#[](index) ⇒ Object 



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# File 'lib/jruby/scala_support.rb', line 296

def [](index)
  if index < 0
    @raw.send("_#{size + index + 1}").from_scala
  elsif index >= size
    nil
  else
    @raw.send("_#{index + 1}").from_scala
  end
end

#[]=(index, value) ⇒ Object

Raises:



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# File 'lib/jruby/scala_support.rb', line 306

def []=(index, value)
  raise ImmutableException,
    "Cannot assign #{value} to index #{index} on #{self
    }: collection immutable"
end

#each ⇒ Object 



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# File 'lib/jruby/scala_support.rb', line 275

def each
  if block_given?
    (0...size).each do |index|
      yield self[index]
    end
    self
  else
    Enumerator.new do |yielder|
      self.each { |item| yielder << item }
    end
  end
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/jruby/scala_support.rb', line 271

def empty?
  false
end

#size ⇒ Object 



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# File 'lib/jruby/scala_support.rb', line 267

def size
  @size
end

#to_s ⇒ Object 



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# File 'lib/jruby/scala_support.rb', line 288

def to_s
  first = true
  each_with_object("[") do |item, str|
    first ? first = false : str << ","
    str << item.to_s
  end << "]"
end