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

Methods

fx   fx_send   new   to_h   to_h_assoc   to_h_auto   to_h_flat   to_h_multi   to_h_splat  

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|
     # ...
     yielder.yield(data)  # or: yielder << data
     # ...
   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
    }
  }

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

[Source]

# File lib/facets/core/facets/enumerator.rb, line 37
    def initialize(*args, &block)
      if block
        @body = block
        old_initialize(self, :_start)
      else
        old_initialize(*args)
      end
    end

Public Instance methods

[Source]

# File lib/facets/core/facets/enumerator/fx.rb, line 15
  def fx
    Functor.new(&method(:fx_send).to_proc)
  end

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/facets/core/facets/to_hash.rb, line 289
  def to_h(mode=nil)
    to_a.to_h(mode)
  end

This is equivalent to Array#to_h_assoc.

[Source]

# File lib/facets/core/facets/to_hash.rb, line 313
  def to_h_assoc
    to_a.to_h_assoc
  end

This is equivalent to Array#to_h_auto.

[Source]

# File lib/facets/core/facets/to_hash.rb, line 295
  def to_h_auto
    to_a.to_h_auto
  end

This is equivalent to Array#to_h_flat.

[Source]

# File lib/facets/core/facets/to_hash.rb, line 307
  def to_h_flat
    to_a.to_h_flat
  end

This is equivalent to Array#to_h_multi.

[Source]

# File lib/facets/core/facets/to_hash.rb, line 319
  def to_h_multi
    to_a.to_h_multi
  end

This is equivalent to Array#to_h_splat.

[Source]

# File lib/facets/core/facets/to_hash.rb, line 301
  def to_h_splat
    to_a.to_h_splat
  end

Private Instance methods

[Source]

# File lib/facets/core/facets/enumerator/fx.rb, line 22
  def fx_send(op, *a, &b)
    map{ |e| e.send(op, *a, &b) }
  end

[Validate]