Is Enumerable#feed only available in MRI?

ruby-talk
1

Hello ruby friends,

I have a test failure that is affecting both Rubinius and JRuby, but is good in MRI.

In JRuby 1.7.9:
NoMethodError:
   undefined method `feed' for #<Enumerator:0x1f72ccbd>

In Rubinius 2.2.6:
NoMethodError:
   undefined method `feed' on an instance of Enumerable::Enumerator.

This method is documented here, and an example of using it in an internal iterator is shown:

http://www.ruby-doc.org/core-2.1.1/Enumerator.html#method-i-feed

Why does this method only exist in C Ruby? Or is it a bug in both implementations? Is there a workaround?

Andrew Vit

2

Seems weird. I think this is just an overlooked method. I would file bugs.

https://github.com/jruby/jruby/search?q=enumerator+feed&type=Code

-Justin

···

On 03/21/2014 05:09 PM, Andrew Vit wrote:

Hello ruby friends,

I have a test failure that is affecting both Rubinius and JRuby, but is
good in MRI.

In JRuby 1.7.9:
NoMethodError:
   undefined method `feed' for #<Enumerator:0x1f72ccbd>

In Rubinius 2.2.6:
NoMethodError:
   undefined method `feed' on an instance of Enumerable::Enumerator.

This method is documented here, and an example of using it in an
internal iterator is shown:

Class: Enumerator (Ruby 2.1.1)

Why does this method only exist in C Ruby? Or is it a bug in both
implementations? Is there a workaround?

Andrew Vit

3

Hello ruby friends,

I have a test failure that is affecting both Rubinius and JRuby, but is

good in MRI.

In JRuby 1.7.9:
NoMethodError:
  undefined method `feed' for #<Enumerator:0x1f72ccbd>

In Rubinius 2.2.6:
NoMethodError:
  undefined method `feed' on an instance of Enumerable::Enumerator.

This method is documented here, and an example of using it in an internal

iterator is shown:

Class: Enumerator (Ruby 2.1.1)

Why does this method only exist in C Ruby? Or is it a bug in both

implementations? Is there a workaround?

Andrew Vit

I don't think jruby or rubinius have caught up with ruby 2.1.1 yet. AFAIK
jruby is still aiming for full 1.9.3 compatibility.

A bug report could help prioritise that method though, as could a pull
request :wink:

···

On Mar 22, 2014 10:10 AM, "Andrew Vit" <andrew@avit.ca> wrote:

4

Enumerator#feed is available since Ruby 1.9.2.

···

2014-03-22 16:01 GMT+09:00 Matthew Kerwin <matthew@kerwin.net.au>:

I don't think jruby or rubinius have caught up with ruby 2.1.1 yet. AFAIK
jruby is still aiming for full 1.9.3 compatibility.

--
Tanaka Akira