diff options
author | usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-10-17 09:25:11 +0000 |
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committer | usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-10-17 09:25:11 +0000 |
commit | fbf633c3723368470cf7adf79e703b06c3ed4a0c (patch) | |
tree | c52f01d87e7f31f809bf6d8a87e2cb7b009822f2 | |
parent | 2a13a71e80e2be2dbc84ba3d9eeb0b3100345869 (diff) |
merge revision(s) 63067,63068: [Backport #14658]
Fix Kernel#singleton_method with Module#Prepend
* proc.c (rb_obj_singleton_method): search the method entry from
the origin class, for fix prepended modules. [Bug #14658]
From: Vasiliy Ermolovich <younash@gmail.com>
proc.c: fix segfault when no singleton class
* proc.c (rb_obj_singleton_method): bail out if the receiver does
not have the singleton class without accessing the origin class
not to segfault. [Bug #14658]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@65118 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
-rw-r--r-- | proc.c | 18 | ||||
-rw-r--r-- | test/ruby/test_method.rb | 13 | ||||
-rw-r--r-- | version.h | 2 |
3 files changed, 24 insertions, 9 deletions
@@ -1766,21 +1766,23 @@ VALUE rb_obj_singleton_method(VALUE obj, VALUE vid) { const rb_method_entry_t *me; - VALUE klass; + VALUE klass = rb_singleton_class_get(obj); ID id = rb_check_id(&vid); + if (NIL_P(klass) || NIL_P(klass = RCLASS_ORIGIN(klass))) { + undef: + rb_name_err_raise("undefined singleton method `%1$s' for `%2$s'", + obj, vid); + } if (!id) { - if (!NIL_P(klass = rb_singleton_class_get(obj)) && - respond_to_missing_p(klass, obj, vid, FALSE)) { + if (respond_to_missing_p(klass, obj, vid, FALSE)) { id = rb_intern_str(vid); return mnew_missing(klass, obj, id, rb_cMethod); } - undef: - rb_name_err_raise("undefined singleton method `%1$s' for `%2$s'", - obj, vid); + goto undef; } - if (NIL_P(klass = rb_singleton_class_get(obj)) || - UNDEFINED_METHOD_ENTRY_P(me = rb_method_entry_at(klass, id)) || + me = rb_method_entry_at(klass, id); + if (UNDEFINED_METHOD_ENTRY_P(me) || UNDEFINED_REFINED_METHOD_P(me->def)) { vid = ID2SYM(id); goto undef; diff --git a/test/ruby/test_method.rb b/test/ruby/test_method.rb index 128999a4c9..189f24b194 100644 --- a/test/ruby/test_method.rb +++ b/test/ruby/test_method.rb @@ -779,6 +779,19 @@ class TestMethod < Test::Unit::TestCase assert_equal(:bar, m.call, feature8391) end + def test_singleton_method_prepend + bug14658 = '[Bug #14658]' + c1 = Class.new + o = c1.new + def o.bar; :bar; end + class << o; prepend Module.new; end + m = assert_nothing_raised(NameError, bug14658) {o.singleton_method(:bar)} + assert_equal(:bar, m.call, bug14658) + + o = Object.new + assert_raise(NameError, bug14658) {o.singleton_method(:bar)} + end + Feature9783 = '[ruby-core:62212] [Feature #9783]' def assert_curry_three_args(m) @@ -1,6 +1,6 @@ #define RUBY_VERSION "2.4.5" #define RUBY_RELEASE_DATE "2018-10-17" -#define RUBY_PATCHLEVEL 332 +#define RUBY_PATCHLEVEL 333 #define RUBY_RELEASE_YEAR 2018 #define RUBY_RELEASE_MONTH 10 |