Class Enumerator
In: lib/core/facets/to_hash.rb
lib/more/facets/enumerator.rb
Parent: Object

Methods

External Aliases

initialize -> old_initialize

Public Class methods

Provides the ruby-1.9 block form of Enumerator, where you can write:

   obj = Enumerator.new do |yielder|
      .. do stuff
      yielder.yield data      # or: yielder << data
      .. etc
   end

When obj.each is called, the block is run once. It should call yielder.yield with each item it wishes to generate.

Example:

  fib = Enumerator.new { |y|
    a = b = 1
    loop {
      y << a
      a, b = b, a + b
    }
  }

  assert_equal [1, 1, 2, 3, 5, 8, 13, 21, 34, 55], fib.take(10)

[Source]

# File lib/more/facets/enumerator.rb, line 35
  def initialize(*args, &block)
    if block_given?
      @body = block
      old_initialize(self, :_start)
    else
      old_initialize(*args)
    end
  end

Public Instance methods

Convert an Enumerator object into a hash. This is equivalent to Array#to_h.

  e1 = [[1,:a],[2,:b],[3,:c]].to_enum
  e1.to_h #=> { 1=>:a, 2=>:b, 3=>:c }

  e2 = [1,2,3,4,5].to_enum
  e2.to_h  #=> {5=>nil, 1=>2, 3=>4}

  e3 = [1,2,1,3,1,5].to_enum
  e3.to_h #=> {1=>5}

CREDIT: Sandor Szücs

[Source]

# File lib/core/facets/to_hash.rb, line 285
  def to_h(mode=nil)
    to_a.to_h(mode)
  end

This is equivalent to Array#to_h_assoc.

[Source]

# File lib/core/facets/to_hash.rb, line 309
  def to_h_assoc
    to_a.to_h_assoc
  end

This is equivalent to Array#to_h_auto.

[Source]

# File lib/core/facets/to_hash.rb, line 291
  def to_h_auto
    to_a.to_h_auto
  end

This is equivalent to Array#to_h_flat.

[Source]

# File lib/core/facets/to_hash.rb, line 303
  def to_h_flat
    to_a.to_h_flat
  end

This is equivalent to Array#to_h_multi.

[Source]

# File lib/core/facets/to_hash.rb, line 315
  def to_h_multi
    to_a.to_h_multi
  end

This is equivalent to Array#to_h_splat.

[Source]

# File lib/core/facets/to_hash.rb, line 297
  def to_h_splat
    to_a.to_h_splat
  end

[Validate]