Module: Value::Comparable

Includes:
Comparable
Defined in:
lib/value-1.0/comparable.rb

Overview

Module included by Module#Value when passed the :comparable option.

Instance Method Summary collapse

Instance Method Details

#<=>(other) ⇒ Integer?

Returns The first non-zero comparison of the Attributes#comparable values of the receiver with those of OTHER (zero if they’re all equal), or nil if the #class of the receiver doesn’t ‘#==` that of OTHER.

Returns:

  • (Integer, nil) —

    The first non-zero comparison of the Attributes#comparable values of the receiver with those of OTHER (zero if they’re all equal), or nil if the #class of the receiver doesn’t ‘#==` that of OTHER



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# File 'lib/value-1.0/comparable.rb', line 11

def <=>(other)
  return nil unless self.class == other.class
  v = nil
  (attributes.comparable.any?{ |e| v = (send(e) <=> other.send(e)).nonzero? } and v) or 0
end