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object.c: fix prepend cmp

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* object.c (rb_class_inherited_p): search the corresponding
  ancestor to prepended module from prepending class itself.
  [ruby-core:72493] [Bug #11878]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53380 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2015-12-30 00:58:58 +00:00
parent d252e224f6
commit a974041b0e
3 changed files with 14 additions and 5 deletions
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6
ChangeLog
View file

@ -1,3 +1,9 @@
Wed Dec 30 09:58:56 2015 Nobuyoshi Nakada <nobu@ruby-lang.org>
* object.c (rb_class_inherited_p): search the corresponding
ancestor to prepended module from prepending class itself.
[ruby-core:72493] [Bug #11878]
Wed Dec 30 09:20:00 2015 Yuki Kurihara <co000ri@gmail.com>
* test/stringio/test_io.rb (test_flag): add assertion for error when

7
object.c
View file

@ -1549,18 +1549,15 @@ rb_mod_eqq(VALUE mod, VALUE arg)
VALUE
rb_class_inherited_p(VALUE mod, VALUE arg)
{
VALUE start = mod;
if (mod == arg) return Qtrue;
if (!CLASS_OR_MODULE_P(arg) && !RB_TYPE_P(arg, T_ICLASS)) {
rb_raise(rb_eTypeError, "compared with non class/module");
}
arg = RCLASS_ORIGIN(arg);
if (class_search_ancestor(mod, arg)) {
if (class_search_ancestor(mod, RCLASS_ORIGIN(arg))) {
return Qtrue;
}
/* not mod < arg; check if mod > arg */
if (class_search_ancestor(arg, start)) {
if (class_search_ancestor(arg, mod)) {
return Qfalse;
}
return Qnil;

6
test/ruby/test_module.rb
View file

@ -1566,6 +1566,12 @@ class TestModule < Test::Unit::TestCase
end
end
def test_prepend_CMP
bug11878 = '[ruby-core:72493] [Bug #11878]'
assert_equal(-1, C1 <=> M2)
assert_equal(+1, M2 <=> C1, bug11878)
end
def test_prepend_inheritance
bug6654 = '[ruby-core:45914]'
a = labeled_module("a")