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merge revision(s) r49221: [Backport #10731]

* vm_method.c (rb_alias): raise a NameError when creating alias to
	  a refined method if the original method of the refined method is
	  not defined.  [ruby-core:67523] [Bug #10731]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@49787 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nagachika 2015-02-28 18:13:42 +00:00
parent c839def7cc
commit f50f70259d
4 changed files with 35 additions and 2 deletions

View file

@ -1,3 +1,9 @@
Sun Mar 1 02:30:23 2015 Seiei Higa <hanachin@gmail.com>
* vm_method.c (rb_alias): raise a NameError when creating alias to
a refined method if the original method of the refined method is
not defined. [ruby-core:67523] [Bug #10731]
Sun Mar 1 01:17:24 2015 Seiei Higa <hanachin@gmail.com>
* vm_method.c (rb_export_method): bail out if the original method

View file

@ -1181,6 +1181,31 @@ class TestRefinement < Test::Unit::TestCase
end;
end
def test_alias_refined_method
assert_separately([], <<-"end;")
bug10731 = '[ruby-core:67523] [Bug #10731]'
class C
end
module RefinementBug
refine C do
def foo
end
def bar
end
end
end
assert_raise(NameError, bug10731) do
class C
alias foo bar
end
end
end;
end
private
def eval_using(mod, s)

View file

@ -1,6 +1,6 @@
#define RUBY_VERSION "2.1.5"
#define RUBY_RELEASE_DATE "2015-03-01"
#define RUBY_PATCHLEVEL 304
#define RUBY_PATCHLEVEL 305
#define RUBY_RELEASE_YEAR 2015
#define RUBY_RELEASE_MONTH 3

View file

@ -1259,7 +1259,9 @@ rb_alias(VALUE klass, ID name, ID def)
again:
orig_me = search_method(klass, def, &defined_class);
if (UNDEFINED_METHOD_ENTRY_P(orig_me)) {
if (UNDEFINED_METHOD_ENTRY_P(orig_me) ||
(orig_me->def->type == VM_METHOD_TYPE_REFINED &&
UNDEFINED_METHOD_ENTRY_P(orig_me->def->body.orig_me))) {
if ((!RB_TYPE_P(klass, T_MODULE)) ||
(orig_me = search_method(rb_cObject, def, 0),
UNDEFINED_METHOD_ENTRY_P(orig_me))) {