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-rw-r--r--activesupport/lib/active_support/core_ext/object/duplicable.rb124
-rw-r--r--activesupport/test/core_ext/object/duplicable_test.rb2
2 files changed, 8 insertions, 118 deletions
diff --git a/activesupport/lib/active_support/core_ext/object/duplicable.rb b/activesupport/lib/active_support/core_ext/object/duplicable.rb
index c78ee6bbfc..3ebcdca02b 100644
--- a/activesupport/lib/active_support/core_ext/object/duplicable.rb
+++ b/activesupport/lib/active_support/core_ext/object/duplicable.rb
@@ -28,96 +28,6 @@ class Object
end
end
-class NilClass
- begin
- nil.dup
- rescue TypeError
-
- # +nil+ is not duplicable:
- #
- # nil.duplicable? # => false
- # nil.dup # => TypeError: can't dup NilClass
- def duplicable?
- false
- end
- end
-end
-
-class FalseClass
- begin
- false.dup
- rescue TypeError
-
- # +false+ is not duplicable:
- #
- # false.duplicable? # => false
- # false.dup # => TypeError: can't dup FalseClass
- def duplicable?
- false
- end
- end
-end
-
-class TrueClass
- begin
- true.dup
- rescue TypeError
-
- # +true+ is not duplicable:
- #
- # true.duplicable? # => false
- # true.dup # => TypeError: can't dup TrueClass
- def duplicable?
- false
- end
- end
-end
-
-class Symbol
- begin
- :symbol.dup
-
- # Some symbols couldn't be duped in Ruby 2.4.0 only, due to a bug.
- # This feature check catches any regression.
- "symbol_from_string".to_sym.dup
- rescue TypeError
-
- # Symbols are not duplicable:
- #
- # :my_symbol.duplicable? # => false
- # :my_symbol.dup # => TypeError: can't dup Symbol
- def duplicable?
- false
- end
- end
-end
-
-class Numeric
- begin
- 1.dup
- rescue TypeError
-
- # Numbers are not duplicable:
- #
- # 3.duplicable? # => false
- # 3.dup # => TypeError: can't dup Integer
- def duplicable?
- false
- end
- end
-end
-
-require "bigdecimal"
-class BigDecimal
- # BigDecimals are duplicable:
- #
- # BigDecimal("1.2").duplicable? # => true
- # BigDecimal("1.2").dup # => #<BigDecimal:...,'0.12E1',18(18)>
- def duplicable?
- true
- end
-end
-
class Method
# Methods are not duplicable:
#
@@ -128,32 +38,12 @@ class Method
end
end
-class Complex
- begin
- Complex(1).dup
- rescue TypeError
-
- # Complexes are not duplicable:
- #
- # Complex(1).duplicable? # => false
- # Complex(1).dup # => TypeError: can't copy Complex
- def duplicable?
- false
- end
- end
-end
-
-class Rational
- begin
- Rational(1).dup
- rescue TypeError
-
- # Rationals are not duplicable:
- #
- # Rational(1).duplicable? # => false
- # Rational(1).dup # => TypeError: can't copy Rational
- def duplicable?
- false
- end
+class UnboundMethod
+ # Unbound methods are not duplicable:
+ #
+ # method(:puts).unbind.duplicable? # => false
+ # method(:puts).unbind.dup # => TypeError: allocator undefined for UnboundMethod
+ def duplicable?
+ false
end
end
diff --git a/activesupport/test/core_ext/object/duplicable_test.rb b/activesupport/test/core_ext/object/duplicable_test.rb
index c9af2cb624..a577c30c40 100644
--- a/activesupport/test/core_ext/object/duplicable_test.rb
+++ b/activesupport/test/core_ext/object/duplicable_test.rb
@@ -6,7 +6,7 @@ require "active_support/core_ext/object/duplicable"
require "active_support/core_ext/numeric/time"
class DuplicableTest < ActiveSupport::TestCase
- RAISE_DUP = [method(:puts)]
+ RAISE_DUP = [method(:puts), method(:puts).unbind]
ALLOW_DUP = ["1", "symbol_from_string".to_sym, Object.new, /foo/, [], {}, Time.now, Class.new, Module.new, BigDecimal("4.56"), nil, false, true, 1, 2.3, Complex(1), Rational(1)]
def test_duplicable