From: nobu.nokada@...
Date: 2001-10-25T10:12:31+09:00
Subject: [ruby-talk:23244] Re: Erroneous warning: block for Proc#call is useless

Hi,

At Thu, 25 Oct 2001 05:56:26 +0900,
Bob Alexander <balexander@rsv.ricoh.com> wrote:
> Ruby sometimes invalidly outputs the warning:
> 
>         sig.rb:10: warning: block for Proc#call is useless
> 
> Some time ago I attempted to report this problem, but couldn't make a
> simple test case to reproduce it. Well, it happened again and I got a
> better handle on it this time -- it's related to signals. I'm using
> version 1.6.5.

Please try following patch.


Index: eval.c
===================================================================
RCS file: /cvs/ruby/src/ruby/eval.c,v
retrieving revision 1.137.2.68
diff -u -2 -p -r1.137.2.68 eval.c
--- eval.c	2001/10/16 15:17:09	1.137.2.68
+++ eval.c	2001/10/25 01:06:55
@@ -1361,7 +1361,9 @@ rb_trap_eval(cmd, sig)
 
     PUSH_TAG(PROT_NONE);
+    PUSH_ITER(ITER_NOT);
     if ((state = EXEC_TAG()) == 0) {
 	val = rb_eval_cmd(cmd, rb_ary_new3(1, INT2FIX(sig)));
     }
+    POP_ITER();
     POP_TAG();
     if (state) {

Nobu Nakada