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No respond_to? as if the default definition

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* vm_method.c (vm_respond_to): try method_missing if respond_to?
  is undefined, as if it is the default definition.
  [ruby-core:75377] [Bug #12353]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55500 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2016-06-24 17:33:35 +00:00
parent 9de2af7bd9
commit b51174a6b0
3 changed files with 27 additions and 1 deletions
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6
ChangeLog
View file

@ -1,3 +1,9 @@
Sat Jun 25 02:33:33 2016 Nobuyoshi Nakada <nobu@ruby-lang.org>
* vm_method.c (vm_respond_to): try method_missing if respond_to?
is undefined, as if it is the default definition.
[ruby-core:75377] [Bug #12353]
Fri Jun 24 17:04:21 2016 SHIBATA Hiroshi <hsbt@ruby-lang.org>
* ext/psych/*, test/psych/*: Upate psych 2.1.0

20
test/ruby/test_marshal.rb
View file

@ -737,4 +737,24 @@ class TestMarshal < Test::Unit::TestCase
end
RUBY
end
MethodMissingWithoutRespondTo = Struct.new(:wrapped_object) do
undef respond_to?
def method_missing(*args, &block)
wrapped_object.public_send(*args, &block)
end
def respond_to_missing?(name, private = false)
wrapped_object.respond_to?(name, false)
end
end
def test_method_missing_without_respond_to
bug12353 = "[ruby-core:75377] [Bug #12353]: try method_missing if" \
" respond_to? is undefined"
obj = MethodMissingWithoutRespondTo.new("foo")
dump = assert_nothing_raised(NoMethodError, bug12353) do
Marshal.dump(obj)
end
assert_equal(obj, Marshal.load(dump))
end
end

2
vm_method.c
View file

@ -1916,7 +1916,7 @@ vm_respond_to(rb_thread_t *th, VALUE klass, VALUE obj, ID id, int priv)
const rb_method_entry_t *const me =
method_entry_get(klass, resid, &defined_class);
if (!me) return TRUE;
if (!me) return -1;
if (METHOD_ENTRY_BASIC(me)) {
return -1;
}