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object.c: no TypeError at special const dup

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* object.c (rb_obj_dup): no longer raise a TypeError for special
  constants, and return itself instead.  [Feature#12979]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56906 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2016-11-27 11:07:27 +00:00
parent 673a6ad970
commit 70d8e6cf22
3 changed files with 5 additions and 5 deletions
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2
object.c
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@ -423,7 +423,7 @@ rb_obj_dup(VALUE obj)
VALUE dup;
if (rb_special_const_p(obj)) {
rb_raise(rb_eTypeError, "can't dup %s", rb_obj_classname(obj));
return obj;
}
dup = rb_obj_alloc(rb_obj_class(obj));
init_copy(dup, obj);

6
test/ruby/test_object.rb
View file

@ -19,9 +19,9 @@ class TestObject < Test::Unit::TestCase
end
def test_dup
assert_raise(TypeError) { 1.dup }
assert_raise(TypeError) { true.dup }
assert_raise(TypeError) { nil.dup }
assert_equal 1, 1.dup
assert_equal true, true.dup
assert_equal nil, nil.dup
assert_raise(TypeError) do
Object.new.instance_eval { initialize_copy(1) }

2
test/rubygems/test_gem_specification.rb
View file

@ -1260,7 +1260,7 @@ dependencies: []
s.version = '1'
end
spec.instance_variable_set :@licenses, :blah
spec.instance_variable_set :@licenses, Object.new.singleton_class
spec.loaded_from = '/path/to/file'
e = assert_raises Gem::FormatException do