Re: [PATCH] Update respond_to? calls for second argument.

[Eric Wong <e@80x24.org>]

Pat Allan <pat@freelancing-gods.com> wrote:
> Rack (since v2) has started explicitly listing the second
> (optional) argument for respond_to?, which matches the
> underlying Ruby spec. This patch fixes the calls in both C and
> Ruby approaches.

Thanks for noticing this!

> However, rb_respond_to only accepts a single argument -
> differing from the Ruby side of things - so perhaps this patch
> isn't quite perfect (and my C skills are very limited, so the
> whole thing could use a review).

No worries.  I think the following should work:

-----8<------
Subject: [PATCH] SQUASH/WIP - use rb_funcallv to handle second respond_to arg

While we're at it, avoid mixing declarations and code
in case there's still compiler compatibility problems.

(We will add a check for -Wdeclaration-after-statement support
 in a separate commit)
---
	Also pushed to the respond_to-priv branch at
	git://bogomips.org/clogger
	commit 7b3ed7c0bed876efe5298232a49f8542b8b340a0

 Do you think you can write a test?  No obligation, I can take
 care of it, too.  Thanks again!

 ext/clogger_ext/clogger.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/ext/clogger_ext/clogger.c b/ext/clogger_ext/clogger.c
index 622c98c..daed91a 100644
--- a/ext/clogger_ext/clogger.c
+++ b/ext/clogger_ext/clogger.c
@@ -965,16 +965,19 @@ static VALUE clogger_init_copy(VALUE clone, VALUE orig)
  */
 static VALUE respond_to(int argc, VALUE *argv, VALUE self)
 {
-	VALUE method, include_all;
-	rb_scan_args(argc, argv, "11", &method, &include_all);
-	if (NIL_P(include_all)) include_all = Qfalse;
-
 	struct clogger *c = clogger_get(self);
-	ID id = rb_to_id(method);
+	VALUE method, include_all;
+	ID id;
 
+	rb_scan_args(argc, argv, "11", &method, &include_all);
+	id = rb_to_id(method);
 	if (close_id == id)
 		return Qtrue;
-	return rb_respond_to(c->body, id);
+
+	if (argc == 1)
+		return rb_respond_to(c->body, id);
+
+	return rb_funcallv(c->body, respond_to_id, argc, argv);
 }
 
 /*
-- 
EW