Module: ActiveSupport::CompareWithRange
Relationships & Source Files | |
Extension / Inclusion / Inheritance Descendants | |
Prepended In:
| |
Defined in: | activesupport/lib/active_support/core_ext/range/compare_range.rb |
Instance Method Summary
-
#===(value)
Extends the default
Range#===
to support range comparisons. -
#include?(value) ⇒ Boolean
Extends the default
Range#include?
to support range comparisons.
Instance Method Details
#===(value)
Extends the default Range#===
to support range comparisons.
(1..5) === (1..5) # => true
(1..5) === (2..3) # => true
(1..5) === (1...6) # => true
(1..5) === (2..6) # => false
The native Range#===
behavior is untouched.
('a'..'f') === ('c') # => true
(5..9) === (11) # => false
The given range must be fully bounded, with both start and end.
# File 'activesupport/lib/active_support/core_ext/range/compare_range.rb', line 16
def ===(value) if value.is_a?(::Range) is_backwards_op = value.exclude_end? ? :>= : :> return false if value.begin && value.end && value.begin.public_send(is_backwards_op, value.end) # 1...10 includes 1..9 but it does not include 1..10. # 1..10 includes 1...11 but it does not include 1...12. operator = exclude_end? && !value.exclude_end? ? :< : :<= value_max = !exclude_end? && value.exclude_end? ? value.max : value.last super(value.first) && (self.end.nil? || value_max.public_send(operator, last)) else super end end
#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?(1...6) # => true
(1..5).include?(2..6) # => false
The native Range#include?
behavior is untouched.
('a'..'f').include?('c') # => true
(5..9).include?(11) # => false
The given range must be fully bounded, with both start and end.
# File 'activesupport/lib/active_support/core_ext/range/compare_range.rb', line 41
def include?(value) if value.is_a?(::Range) is_backwards_op = value.exclude_end? ? :>= : :> return false if value.begin && value.end && value.begin.public_send(is_backwards_op, value.end) # 1...10 includes 1..9 but it does not include 1..10. # 1..10 includes 1...11 but it does not include 1...12. operator = exclude_end? && !value.exclude_end? ? :< : :<= value_max = !exclude_end? && value.exclude_end? ? value.max : value.last super(value.first) && (self.end.nil? || value_max.public_send(operator, last)) else super end end