* signal.c (trap_handler): also accepts symbols. [ruby-dev:37823]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@21746 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,7 @@
+Fri Jan 23 13:26:45 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* signal.c (trap_handler): also accepts symbols.  [ruby-dev:37823]
+
 Thu Jan 22 18:14:04 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* lib/mkmf.rb (create_makefile): removes installed files under

signal.c

@@ -753,6 +753,10 @@ trap_handler(VALUE *cmd, int sig)
     }
     else {
 	command = rb_check_string_type(*cmd);
+	if (NIL_P(command) && SYMBOL_P(*cmd)) {
+	    command = rb_id2str(SYM2ID(*cmd));
+	    if (!command) rb_raise(rb_eArgError, "bad handler");
+	}
 	if (!NIL_P(command)) {
 	    SafeStringValue(command);	/* taint check */
 	    *cmd = command;