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array.c: keep consistency

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* array.c (rb_ary_select_bang): keep the array consistent by
  removing unselected values soon.  [ruby-dev:48805] [Bug #10722]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49196 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2015-01-10 01:12:17 +00:00
parent 07b87cd239
commit d2da3d04e6
3 changed files with 26 additions and 12 deletions
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5
ChangeLog
View file

@ -1,3 +1,8 @@
Sat Jan 10 10:12:15 2015 Nobuyoshi Nakada <nobu@ruby-lang.org>
* array.c (rb_ary_select_bang): keep the array consistent by
removing unselected values soon. [ruby-dev:48805] [Bug #10722]
Fri Jan 9 23:20:04 2015 SHIBATA Hiroshi <shibata.hiroshi@gmail.com>
* lib/rubygems: Update to RubyGems HEAD(e53c54a).

23
array.c
View file

@ -2843,23 +2843,22 @@ rb_ary_select(VALUE ary)
static VALUE
rb_ary_select_bang(VALUE ary)
{
long i1, i2;
long i;
VALUE result = Qnil;
RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
rb_ary_modify(ary);
for (i1 = i2 = 0; i1 < RARRAY_LEN(ary); i1++) {
VALUE v = RARRAY_AREF(ary, i1);
if (!RTEST(rb_yield(v))) continue;
if (i1 != i2) {
rb_ary_store(ary, i2, v);
for (i = 0; i < RARRAY_LEN(ary); ) {
VALUE v = RARRAY_AREF(ary, i);
if (!RTEST(rb_yield(v))) {
rb_ary_delete_at(ary, i);
result = ary;
}
else {
i++;
}
i2++;
}
if (i1 == i2) return Qnil;
if (i2 < i1)
ARY_SET_LEN(ary, i2);
return ary;
return result;
}
/*

10
test/ruby/test_array.rb
View file

@ -2019,6 +2019,16 @@ class TestArray < Test::Unit::TestCase
a = @cls[ 1, 2, 3, 4, 5 ]
assert_equal(a, a.select! { |i| i > 3 })
assert_equal(@cls[4, 5], a)
bug10722 = '[ruby-dev:48805] [Bug #10722]'
a = @cls[ 5, 6, 7, 8, 9, 10 ]
r = a.select! {|i|
break i if i > 8
# assert_equal(a[0], i, "should be selected values only") if i == 7
i >= 7
}
assert_equal(9, r)
assert_equal(@cls[7, 8, 9, 10], a, bug10722)
end
def test_delete2