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merge revision(s) 43929: [Backport #9178]

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* enumerator.c (enumerator_with_index): should not store local variable
	  address to memoise the arguments.  it is invalidated after the return.
	  [ruby-core:58692] [Bug #9178]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@43961 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nagachika 2013-12-02 14:48:50 +00:00
parent b851418bb7
commit c27bd84806
4 changed files with 21 additions and 5 deletions
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6
ChangeLog
View file

@ -1,3 +1,9 @@
Mon Dec 2 23:31:00 2013 Nobuyoshi Nakada <nobu@ruby-lang.org>
* enumerator.c (enumerator_with_index): should not store local variable
address to memoise the arguments. it is invalidated after the return.
[ruby-core:58692] [Bug #9178]
Mon Dec 2 23:16:50 2013 Eric Hodel <drbrain@segment7.net>
* enumerator.c (enumerator_with_index): Restore handling of a nil memo

8
enumerator.c
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@ -460,9 +460,9 @@ enumerator_each(int argc, VALUE *argv, VALUE obj)
static VALUE
enumerator_with_index_i(VALUE val, VALUE m, int argc, VALUE *argv)
{
VALUE *memo = (VALUE *)m;
VALUE idx = *memo;
*memo = rb_int_succ(idx);
NODE *memo = (NODE *)m;
VALUE idx = memo->u1.value;
memo->u1.value = rb_int_succ(idx);
if (argc <= 1)
return rb_yield_values(2, val, idx);
@ -494,7 +494,7 @@ enumerator_with_index(int argc, VALUE *argv, VALUE obj)
RETURN_SIZED_ENUMERATOR(obj, argc, argv, enumerator_size);
if (NIL_P(memo))
memo = INT2NUM(0);
return enumerator_block_call(obj, enumerator_with_index_i, (VALUE)&memo);
return enumerator_block_call(obj, enumerator_with_index_i, (VALUE)NEW_MEMO(memo, 0, 0));
}
/*

10
test/ruby/test_enumerator.rb
View file

@ -112,6 +112,16 @@ class TestEnumerator < Test::Unit::TestCase
assert_equal([[1,s],[2,s+1],[3,s+2]], @obj.to_enum(:foo, 1, 2, 3).with_index(s).to_a, bug8010)
end
def test_with_index_dangling_memo
bug9178 = '[ruby-core:58692] [Bug #9178]'
assert_separately([], <<-"end;")
bug = "#{bug9178}"
e = [1].to_enum(:chunk).with_index {|c,i| i == 5}
assert_kind_of(Enumerator, e)
assert_equal([false, [1]], e.to_a[0], bug)
end;
end
def test_with_object
obj = [0, 1]
ret = (1..10).each.with_object(obj) {|i, memo|

2
version.h
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@ -1,6 +1,6 @@
#define RUBY_VERSION "2.0.0"
#define RUBY_RELEASE_DATE "2013-12-02"
#define RUBY_PATCHLEVEL 356
#define RUBY_PATCHLEVEL 357
#define RUBY_RELEASE_YEAR 2013
#define RUBY_RELEASE_MONTH 12