Class: Enumerator

Inherits:

Object

• Object
• Enumerator

Defined in:

lib/tagen/core/enumerator.rb

Instance Method Summary

• #with_iobject(*args, &blk) ⇒ Object

  combine with_index and with_object.

Instance Method Details

#with_iobject(*args) ⇒ Object #with_iobject(*args) {|(*args), idx, memo_obj| ... } ⇒ Object

combine with_index and with_object

Examples:

(1..7).each.with_iobject([]){|(*args), idx, memo|}
(1..7).each.with_iobject(2, []){|(*args), idx, memo|} # offset is 2

Overloads:

• #with_iobject(*args) ⇒ Object

  Returns Enumerator.

  Parameters:

  • *args (Fixnum, Object) —

    pass Fixnum as offset, otherwise as memo_obj

  Returns:

  • Enumerator

• #with_iobject(*args) {|(*args), idx, memo_obj| ... } ⇒ Object

  Yield Parameters:

  • (*args) (Object)
  • idx (Fixnum) —

    index

  • memo_obj (Object)

See Also:

• with_object

# File 'lib/tagen/core/enumerator.rb', line 17

def with_iobject *args, &blk
  return self.to_enum(:with_iobject, *args) unless blk

  offset = args.find!{|v| Fixnum===v} || 0
  raise ArgumentError "must provide memo_obj" if args.empty?
  memo = args[0]

  i = offset-1
  self.with_object memo do |args, m|
    blk.call args,i+=1,m
  end
end