Merge pull request #26732 from matthewd/fixnum-warning

Fixnum and Bignum are deprecated in Ruby trunk

activejob/lib/active_job/arguments.rb

@@ -34,8 +34,8 @@ class SerializationError < ArgumentError; end
   module Arguments
     extend self
     # :nodoc:
-    # Calls #uniq since Integer, Fixnum, and Bignum are all the same class on Ruby 2.4+
-    TYPE_WHITELIST = [ NilClass, String, Integer, Fixnum, Bignum, Float, BigDecimal, TrueClass, FalseClass ].uniq
+    TYPE_WHITELIST = [ NilClass, String, Integer, Float, BigDecimal, TrueClass, FalseClass ]
+    TYPE_WHITELIST.push(Fixnum, Bignum) unless 1.class == Integer
 
     # Serializes a set of arguments. Whitelisted types are returned
     # as-is. Arrays/Hashes are serialized element by element.

activerecord/test/cases/query_cache_test.rb

@@ -138,7 +138,7 @@ def test_cache_does_not_wrap_string_results_in_arrays
         assert_kind_of Numeric, Task.connection.select_value("SELECT count(*) AS count_all FROM tasks")
       elsif current_adapter?(:SQLite3Adapter, :Mysql2Adapter, :PostgreSQLAdapter)
         # Future versions of the sqlite3 adapter will return numeric
-        assert_instance_of Fixnum, Task.connection.select_value("SELECT count(*) AS count_all FROM tasks")
+        assert_instance_of 0.class, Task.connection.select_value("SELECT count(*) AS count_all FROM tasks")
       else
         assert_instance_of String, Task.connection.select_value("SELECT count(*) AS count_all FROM tasks")
       end

activesupport/lib/active_support/core_ext/numeric/conversions.rb

@@ -134,7 +134,7 @@ def to_formatted_s(*args)
 end
 
 # Ruby 2.4+ unifies Fixnum & Bignum into Integer.
-if Integer == Fixnum
+if 0.class == Integer
   Integer.prepend ActiveSupport::NumericWithFormat
 else
   Fixnum.prepend ActiveSupport::NumericWithFormat

activesupport/lib/active_support/xml_mini.rb

@@ -48,8 +48,8 @@ def content_type
       }
 
       # No need to map these on Ruby 2.4+
-      TYPE_NAMES["Fixnum"] = "integer" unless Fixnum == Integer
-      TYPE_NAMES["Bignum"] = "integer" unless Bignum == Integer
+      TYPE_NAMES["Fixnum"] = "integer" unless 0.class == Integer
+      TYPE_NAMES["Bignum"] = "integer" unless 0.class == Integer
     end
 
     FORMATTING = {

activesupport/test/core_ext/array/grouping_test.rb

@@ -4,11 +4,11 @@
 class GroupingTest < ActiveSupport::TestCase
   def setup
     # In Ruby < 2.4, test we avoid Integer#/ (redefined by mathn)
-    Fixnum.send :private, :/ unless Fixnum == Integer
+    Fixnum.send :private, :/ unless 0.class == Integer
   end
 
   def teardown
-    Fixnum.send :public, :/ unless Fixnum == Integer
+    Fixnum.send :public, :/ unless 0.class == Integer
   end
 
   def test_in_groups_of_with_perfect_fit