From: Mauricio Fernandez <mfp@...>
Date: 2006-02-02T08:17:41+09:00
Subject: Re: [RCR] Numeric#of

On Thu, Feb 02, 2006 at 01:03:30AM +0900, Jacob Fugal wrote:
> On 1/31/06, Yukihiro Matsumoto <matz@ruby-lang.org> wrote:
> > If returns a enumerator object just like other enumerable methods do
> > if no block is given to them.
> 
> Sweet! I've wanted this sort of enumerator generation for a while. Is
> this new across the board in 1.9, or have I just been stupid in
> assuming it didn't work when it has this whole time?


It's been working for Enumerable (and similar) methods for a while (in 1.9):

Fri Jul 15 00:11:36 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>

	* enum.c (enumeratorize): create new enumerator for current method if
	  no block is given.

	* enumerator.c: moved from ext/enumerator.



batsman@tux-chan:~/src/ruby/ruby.head$ grep -B 8 RETURN_ENUMERA -h *.c | egrep '^\w+\('
rb_ary_index(int argc, VALUE *argv, VALUE ary)
rb_ary_rindex(int argc, VALUE *argv, VALUE ary)
rb_ary_each(VALUE ary)
rb_ary_each_index(VALUE ary)
rb_ary_reverse_each(VALUE ary)
rb_ary_collect(VALUE ary)
rb_ary_collect_bang(VALUE ary)
rb_ary_select(VALUE ary)
rb_ary_reject_bang(VALUE ary)
rb_ary_reject(VALUE ary)
dir_each(VALUE dir)
enum_find(int argc, VALUE *argv, VALUE obj)
enum_find_all(VALUE obj)
enum_reject(VALUE obj)
enum_collect(VALUE obj)
enum_partition(VALUE obj)
enum_sort_by(VALUE obj)
enum_min_by(VALUE obj)
enum_max_by(VALUE obj)
enum_each_with_index(VALUE obj)
rb_hash_select(VALUE hash)
rb_hash_each_value(VALUE hash)
rb_hash_each_key(VALUE hash)
rb_hash_each_pair(VALUE hash)
rb_hash_each(VALUE hash)
env_each_key(VALUE ehash)
env_each_value(VALUE ehash)
env_each(VALUE ehash)
env_each_pair(VALUE ehash)
env_select(VALUE ehash)
rb_io_each_line(int argc, VALUE *argv, VALUE io)
rb_io_each_byte(VALUE io)
rb_io_s_foreach(int argc, VALUE *argv, VALUE self)
argf_each_line(int argc, VALUE *argv, VALUE self)
argf_each_byte(VALUE self)
range_step(int argc, VALUE *argv, VALUE range)
range_each(VALUE range)
rb_str_each_byte(VALUE str)
rb_struct_each(VALUE s)
rb_struct_each_pair(VALUE s)


-- 
Mauricio Fernandez