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array.c: reduce to_ary call

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* array.c (flatten): no need to call to_ary method on elements
  beyond the given level.  [ruby-core:67637] [Bug #10748]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49400 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2015-01-25 03:04:10 +00:00
parent 7d87d0c466
commit aa436bdca6
4 changed files with 39 additions and 1 deletions
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5
ChangeLog
View file

@ -1,3 +1,8 @@
Sun Jan 25 12:04:12 2015 Nobuyoshi Nakada <nobu@ruby-lang.org>
* array.c (flatten): no need to call to_ary method on elements
beyond the given level. [ruby-core:67637] [Bug #10748]
Sun Jan 25 00:42:24 2015 Nobuyoshi Nakada <nobu@ruby-lang.org>
* ext/fiddle/win32/libffi.mk.tmpl: assemble without directory prefix.

3
NEWS
View file

@ -22,6 +22,9 @@ with all sufficient information, see the ChangeLog file.
no longer changes the receiver array instantly every time the
block is called. [Feature #10714]
* Array#flatten and Array#flatten! no longer try to call #to_ary
method on elements beyond the given level. [Bug #10748]
* IO
* IO#close doesn't raise when the IO object is closed. [Feature #10718]

6
array.c
View file

@ -4387,11 +4387,15 @@ flatten(VALUE ary, int level, int *modified)
while (1) {
while (i < RARRAY_LEN(ary)) {
elt = RARRAY_AREF(ary, i++);
if (level >= 0 && RARRAY_LEN(stack) / 2 >= level) {
rb_ary_push(result, elt);
continue;
}
tmp = rb_check_array_type(elt);
if (RBASIC(result)->klass) {
rb_raise(rb_eRuntimeError, "flatten reentered");
}
if (NIL_P(tmp) || (level >= 0 && RARRAY_LEN(stack) / 2 >= level)) {
if (NIL_P(tmp)) {
rb_ary_push(result, elt);
}
else {

26
test/ruby/test_array.rb
View file

@ -790,6 +790,19 @@ class TestArray < Test::Unit::TestCase
assert_not_same(a8, a9)
end
def test_flatten_splat
bug10748 = '[ruby-core:67637] [Bug #10748]'
o = Object.new
o.singleton_class.class_eval do
define_method(:to_ary) do
raise bug10748
end
end
a = @cls[@cls[o]]
assert_raise_with_message(RuntimeError, bug10748) {a.flatten}
assert_nothing_raised(RuntimeError, bug10748) {a.flatten(1)}
end
def test_flatten!
a1 = @cls[ 1, 2, 3]
a2 = @cls[ 5, 6 ]
@ -814,6 +827,19 @@ class TestArray < Test::Unit::TestCase
assert_nil(@cls[].flatten!(0), '[ruby-core:23382]')
end
def test_flatten_splat!
bug10748 = '[ruby-core:67637] [Bug #10748]'
o = Object.new
o.singleton_class.class_eval do
define_method(:to_ary) do
raise bug10748
end
end
a = @cls[@cls[o]]
assert_raise_with_message(RuntimeError, bug10748) {a.flatten!}
assert_nothing_raised(RuntimeError, bug10748) {a.flatten!(1)}
end
def test_flatten_with_callcc
need_continuation
o = Object.new