merge revision(s) 49221: [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_0_0@49425 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
usa 2015-01-27 08:06:50 +00:00
parent 169ec127e0
commit d604893f20
4 changed files with 35 additions and 2 deletions

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@ -1,3 +1,9 @@
Tue Jan 27 17:05:43 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]
Tue Jan 27 16:49:07 2015 Nobuyoshi Nakada <nobu@ruby-lang.org> Tue Jan 27 16:49:07 2015 Nobuyoshi Nakada <nobu@ruby-lang.org>
* ext/readline/readline.c (readline_s_refresh_line): initialize * ext/readline/readline.c (readline_s_refresh_line): initialize

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@ -1016,6 +1016,31 @@ class TestRefinement < Test::Unit::TestCase
end; end;
end end
def test_alias_refined_method
assert_separately(['-W0'], <<-"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 private
def eval_using(mod, s) def eval_using(mod, s)

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@ -1,6 +1,6 @@
#define RUBY_VERSION "2.0.0" #define RUBY_VERSION "2.0.0"
#define RUBY_RELEASE_DATE "2015-01-27" #define RUBY_RELEASE_DATE "2015-01-27"
#define RUBY_PATCHLEVEL 620 #define RUBY_PATCHLEVEL 621
#define RUBY_RELEASE_YEAR 2015 #define RUBY_RELEASE_YEAR 2015
#define RUBY_RELEASE_MONTH 1 #define RUBY_RELEASE_MONTH 1

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@ -1221,7 +1221,9 @@ rb_alias(VALUE klass, ID name, ID def)
again: again:
orig_me = search_method(klass, def, &defined_class); 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)) || if ((!RB_TYPE_P(klass, T_MODULE)) ||
(orig_me = search_method(rb_cObject, def, 0), (orig_me = search_method(rb_cObject, def, 0),
UNDEFINED_METHOD_ENTRY_P(orig_me))) { UNDEFINED_METHOD_ENTRY_P(orig_me))) {