[ruby-dev:26934] safe level preserved in method

なかだです。

しばらく前に入ったメソッド定義時のsafe levelを覚えておくという
機能ですが、呼び出し側のsafe levelが0だったときだけ、終了後も元
に戻りません。

date: 2005-08-17 00:24:14 +0900;  author: matz;  state: Exp;  lines: +22 -25;
* eval.c (rb_add_method): preserve safe level in the environment
  where a method is defined .

* eval.c (rb_call0): restore preserved safe level in the method
  execution.

$ ruby -e 'proc{class X;$SAFE=2;def foo;$SAFE;end;end}.call; p [$SAFE=1,X.new.foo, $SAFE]'
[1, 2, 1]

$ ruby -e 'proc{class X;$SAFE=2;def foo;$SAFE;end;end}.call; p [$SAFE=0,X.new.foo, $SAFE]'
[0, 2, 2]


Index: eval.c
===================================================================
RCS file: /cvs/ruby/src/ruby/eval.c,v
retrieving revision 1.821
diff -U2 -p -u -r1.821 eval.c
--- eval.c	30 Aug 2005 14:06:41 -0000	1.821
+++ eval.c	1 Sep 2005 08:13:48 -0000
@@ -5960,5 +5960,5 @@ rb_call0(klass, recv, id, oid, argc, arg
 	    POP_SCOPE();
 	    ruby_cref = saved_cref;
-	    if (safe > 0) ruby_safe_level = safe;
+	    if (safe >= 0) ruby_safe_level = safe;
 	    if (event_hooks) {
 		EXEC_EVENT_HOOK(RUBY_EVENT_RETURN, body, recv, id, klass);


-- 
--- 僕の前にBugはない。
--- 僕の後ろにBugはできる。
    中田 伸悦