File: rexml/syncenumerator.rb

File: rexml/syncenumerator.rb
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Overview

Module Structure
Class Hierarchy

Module Structure

module: <Toplevel Module>

module: REXML — #1

class: SyncEnumerator — #2

includes

Enumerable ( Builtin-Module )

inherits from

Object ( Builtin-Module )

has properties

method:	`initialize` / 1	—	#7
method:	`size`	—	#15
method:	`length`	—	#21
method:	`each`	—	#26

Class Hierarchy

Object ( Builtin-Module )

SyncEnumerator ( REXML ) — #2

Code

   1  module REXML
   2    class SyncEnumerator
   3      include Enumerable
   4 
   5      # Creates a new SyncEnumerator which enumerates rows of given
   6      # Enumerable objects.
   7      def initialize(*enums)
   8        @gens = enums
   9        @biggest = @gens[0]
  10        @gens.each {|x| @biggest = x if x.size > @biggest.size }
  11      end
  12 
  13      # Returns the number of enumerated Enumerable objects, i.e. the size
  14      # of each row.
  15      def size
  16        @gens.size
  17      end
  18 
  19      # Returns the number of enumerated Enumerable objects, i.e. the size
  20      # of each row.
  21      def length
  22        @gens.length
  23      end
  24 
  25      # Enumerates rows of the Enumerable objects.
  26      def each
  27        @biggest.zip( *@gens ) {|a|
  28          yield(*a[1..-1])
  29        }
  30        self
  31      end
  32    end
  33  end

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