1 files changed, 19 insertions, 9 deletions
diff --git a/ext/date/lib/date.rb b/ext/date/lib/date.rb
index 4268661cb2..0cb763017f 100644
--- a/ext/date/lib/date.rb
+++ b/ext/date/lib/date.rb
@@ -1,12 +1,20 @@
+# frozen_string_literal: true
 # date.rb: Written by Tadayoshi Funaba 1998-2011
 
 require 'date_core'
 
 class Date
+  VERSION = "3.5.1" # :nodoc:
 
-  class Infinity < Numeric # :nodoc:
+  # call-seq:
+  #   infinite? -> false
+  #
+  # Returns +false+
+  def infinite?
+    false
+  end
 
-    include Comparable
+  class Infinity < Numeric # :nodoc:
 
     def initialize(d=1) @d = d <=> 0 end
 
@@ -14,19 +22,21 @@ class Date
 
     protected :d
 
-    def zero? () false end
-    def finite? () false end
-    def infinite? () d.nonzero? end
-    def nan? () d.zero? end
+    def zero?() false end
+    def finite?() false end
+    def infinite?() d.nonzero? end
+    def nan?() d.zero? end
 
     def abs() self.class.new end
 
-    def -@ () self.class.new(-d) end
-    def +@ () self.class.new(+d) end
+    def -@() self.class.new(-d) end
+    def +@() self.class.new(+d) end
 
-    def <=> (other)
+    def <=>(other)
       case other
       when Infinity; return d <=> other.d
+      when Float::INFINITY; return d <=> 1
+      when -Float::INFINITY; return d <=> -1
       when Numeric; return d
       else
         begin