Bug #4290: !_=%w~ dumps core

• Status: Closed
• Assignee: mame (Yusuke Endoh)
• Target version: 1.9.3
• ruby -v: ruby 1.9.3dev (2011-01-18 trunk 30590) [i686-linux]

[mame (Yusuke Endoh)]

=begin
遠藤です。

以下で SEGV します。

$ ./miniruby -e '!_=%w~'
-e:1: unterminated string meets end of file
./miniruby: [BUG] Segmentation fault
ruby 1.9.3dev (2011-01-18 trunk 30590) [i686-linux]

条件式の代入文の値に壊れた %w を置くと起きるようです。

diff --git a/parse.y b/parse.y
index bbe842e..b4ee019 100644
--- a/parse.y
+++ b/parse.y
@@ -8684,6 +8684,7 @@ assign_in_cond(struct parser_params *parser, NODE *node)
return 0;
}

• if (!node->nd_value) return 1;
  switch (nd_type(node->nd_value)) {
  case NODE_LIT:
  case NODE_STR:

--
Yusuke Endoh [e-mail]
=end

[mame (Yusuke Endoh)]

• Status changed from Open to Closed
• % Done changed from 0 to 100

=begin
This issue was solved with changeset r30597.
Yusuke, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

---

• parse.y: avoid NULL reference. [ruby-dev:43067]
  =end