Class: SequenceEnumerator

Inherits:

Object

• Object
• SequenceEnumerator

Includes:

Enumerable

Defined in:

lib/utilrb/enumerable/sequence.rb

Overview

An enumerator which iterates on multiple iterators in sequence

([1, 2].enum_for + [2, 3].enum_for).to_a # => [1, 2, 2, 3]

See also Enumerable::Enumerator#+

Instance Method Summary

• #+(other) ⇒ Object
• #<<(other) ⇒ Object

  Adds object at the back of the sequence.

• #each ⇒ Object
• #initialize ⇒ SequenceEnumerator constructor

  A new instance of SequenceEnumerator.

Methods included from Enumerable

#each_uniq, #random_element

Constructor Details

#initialize ⇒ SequenceEnumerator

Returns a new instance of SequenceEnumerator.

# File 'lib/utilrb/enumerable/sequence.rb', line 9

def initialize; @sequence = Array.new end

Instance Method Details

#+(other) ⇒ Object

# File 'lib/utilrb/enumerable/sequence.rb', line 11

def +(other); SequenceEnumerator.new << self << other end

#<<(other) ⇒ Object

Adds object at the back of the sequence

# File 'lib/utilrb/enumerable/sequence.rb', line 13

def <<(other); @sequence << other; self end

#each ⇒ Object

# File 'lib/utilrb/enumerable/sequence.rb', line 15

def each
	@sequence.each { |enum| enum.each { |o| yield(o) } } if block_given?
	self
end