Module: ActiveSupport::IncludeWithRange

Defined in:
activesupport/lib/active_support/core_ext/range/include_range.rb

Overview

:nodoc:

Instance Method Summary collapse

Instance Method Details

#include?(value) ⇒ Boolean

Extends the default Range#include? to support range comparisons.

(1..5).include?(1..5) # => true
(1..5).include?(2..3) # => true
(1..5).include?(2..6) # => false

The native Range#include? behavior is untouched.

('a'..'f').include?('c') # => true
(5..9).include?(11) # => false

Returns:

  • (Boolean)

11
12
13
14
15
16
17
18
19
# File 'activesupport/lib/active_support/core_ext/range/include_range.rb', line 11

def include?(value)
  if value.is_a?(::Range)    # 1...10 includes 1..9 but it does not include 1..10.

    operator = exclude_end? && !value.exclude_end? ? :< : :<=
    super(value.first) && value.last.send(operator, last)
  else
    super
  end
end