[ruby-dev:9672] IO.popen

新井です。

1.5のpopen()で、

p IO.popen("-", "w")

#<IO:0x4011a6ac>
-:1:in `popen': yield called out of iterator (LocalJumpError)
	from -:1

となってしまいます。1.4互換なら以下の修正でどうでしょ？
# 紛らわしい気がしたので、変数の使い回しも止めました。

Sat May 13 14:21:15 2000  Koji Arai  <[e-mail]>

	* io.c (rb_io_s_popen): should check whether has a block.

Index: io.c
===================================================================
RCS file: /home/cvs/ruby/io.c,v
retrieving revision 1.28
diff -u -p -u -r1.28 io.c
--- io.c	2000/05/12 09:07:41	1.28
+++ io.c	2000/05/13 14:21:15
@@ -1592,12 +1592,14 @@ rb_io_s_popen(argc, argv, self)
     Check_SafeStr(pname);
     port = pipe_open(RSTRING(pname)->ptr, mode);
     if (NIL_P(port)) {
+	/* child */
 	if (!NIL_P(proc)) {
 	    rb_eval_cmd(proc, rb_ary_new2(0));
 	}
-	else {
-	    rb_yield(port);
+	else if (rb_iterator_p()) {
+	    rb_yield(Qnil);
 	}
+	return Qnil;
     }
     else if (rb_iterator_p()) {
 	return rb_ensure(rb_yield, port, rb_io_close, port);

--
新井康司 (Koji Arai)