* compile.c (iseq_compile_each): fix for segfault. [ruby-dev:31372]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@14308 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

4 files changed, 10 insertions, 5 deletions

diff --git a/ChangeLog b/ChangeLog
index 9346837320..88fee26182 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Tue Dec 18 23:53:53 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compile.c (iseq_compile_each): fix for segfault.  [ruby-dev:31372]
+
 Tue Dec 18 23:44:32 2007  GOTOU Yuuzou  <gotoyuzo@notwork.org>
 
 	* test/net/http/utils.rb: split TestNetHTTPUtils module from
diff --git a/bootstraptest/test_eval.rb b/bootstraptest/test_eval.rb
index ed3deba989..2f5e912074 100644
--- a/bootstraptest/test_eval.rb
+++ b/bootstraptest/test_eval.rb
@@ -188,3 +188,8 @@ assert_equal %q{[10, main]}, %q{
   C.new(&$pr)
   $ans
 }
+
+assert_match /Illegal break/, %q{
+  STDERR.reopen(STDOUT)
+  eval "0 rescue break"
+}, '[ruby-dev:31372]'
diff --git a/bootstraptest/test_knownbug.rb b/bootstraptest/test_knownbug.rb
index e585ba5fe2..345e5c68df 100644
--- a/bootstraptest/test_knownbug.rb
+++ b/bootstraptest/test_knownbug.rb
@@ -36,10 +36,6 @@ assert_equal 'ok', %q{
 }
 
 assert_normal_exit %q{
-  eval "0 rescue break"
-}, '[ruby-dev:31372]'
-
-assert_normal_exit %q{
   eval "while true; return; end rescue p $!"
 }, '[ruby-dev:31663]'
 
diff --git a/compile.c b/compile.c
index f77851f777..bd5bfa9954 100644
--- a/compile.c
+++ b/compile.c
@@ -2946,7 +2946,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	}
 	else {
 	    rb_iseq_t *ip = iseq->parent_iseq;
-	    while (ip) {
+	    while (ip && ip->compile_data) {
 		level++;
 		if (ip->compile_data->redo_label != 0) {
 		    level = 0x8000;