[#383997] CORE - Alternative Variable Substitution — Ilias Lazaridis <ilias@...>

ruby 1.9

21 messages 2011/06/01

[#384051] CORE - Replace "if __FILE__ == $0" with "executed?" — Ilias Lazaridis <ilias@...>

The construct to detect execution of the file (in order to launch main

12 messages 2011/06/02

[#384104] CORE - Altering Behaviour of "each do" (default param "item") — Ilias Lazaridis <ilias@...>

1.9

76 messages 2011/06/04
[#384111] Re: CORE - Altering Behaviour of "each do" (default param "item") — James Gray <james@...> 2011/06/04

On Sat, Jun 4, 2011 at 6:50 AM, Ilias Lazaridis <ilias@lazaridis.com> wrote:

[#384154] Re: CORE - Altering Behaviour of "each do" (default param "item") — Yukihiro Matsumoto <matz@...> 2011/06/05

Hi,

[#384168] Re: CORE - Altering Behaviour of "each do" (default param "item") — Ilias Lazaridis <ilias@...> 2011/06/06

On 6 撫, 01:11, Yukihiro Matsumoto <m...@ruby-lang.org> wrote:

[#384228] a little challenge - reproduce this error — Intransition <transfire@...>

Want to see a really amazing error I got this week? Okay... but to

24 messages 2011/06/08
[#384230] Re: a little challenge - reproduce this error — Steve Klabnik <steve@...> 2011/06/08

throw NameError.new("uninitialized constant X::Foo::X")

[#384231] Re: a little challenge - reproduce this error — John Feminella <johnf@...> 2011/06/08

This is a pretty trivial error to generate. Just reference the

[#384232] Re: a little challenge - reproduce this error — Intransition <transfire@...> 2011/06/08

[#384235] Re: a little challenge - reproduce this error — Christopher Dicely <cmdicely@...> 2011/06/08

On Wed, Jun 8, 2011 at 6:43 AM, Intransition <transfire@gmail.com> wrote:

[#384279] CORE - Literal Instantiation breaks Object Model — Ilias Lazaridis <ilias@...>

class String

14 messages 2011/06/09

[#384280] BARRIER - require "rubygems" — Ilias Lazaridis <ilias@...>

ruby 1.9.2p180 Windows 7

30 messages 2011/06/09

[#384283] Classic Computer Science Books — Stu <stu@...>

I wanted to start a thread discussion on classic computer science

38 messages 2011/06/09
[#384288] Re: Classic Computer Science Books — Josh Cheek <josh.cheek@...> 2011/06/10

On Thu, Jun 9, 2011 at 5:18 PM, Stu <stu@rubyprogrammer.net> wrote:

[#384289] Re: Classic Computer Science Books — Chad Perrin <code@...> 2011/06/10

On Fri, Jun 10, 2011 at 09:22:58AM +0900, Josh Cheek wrote:

[#384291] Re: Classic Computer Science Books — Stu <stu@...> 2011/06/10

Thank you for the responses. I look forward to reading others.

[#384346] Re: Classic Computer Science Books — Anurag Priyam <anurag08priyam@...> 2011/06/11

> queue to read Meyers C++ books and Crockford's Javascript: The Good

[#384349] Re: Classic Computer Science Books — Stu <stu@...> 2011/06/11

Hello Anurag

[#384430] Re: Classic Computer Science Books — Anurag Priyam <anurag08priyam@...> 2011/06/13

Hey Stu,

[#384464] Re: Classic Computer Science Books — Vin兤ius <undvinicius@...> 2011/06/14

Wow, those are a lot of books, as a beginner programmer, I don't have

[#384322] PSA: Ilias is Crazy — Ryan Davis <ryand-ruby@...>

I guess I have to post this periodically since our population is growing and changing so much.

18 messages 2011/06/10

[#384363] RFC - One word alias for require_relative — Ilias Lazaridis <ilias@...>

This is a simple Request for Comments.

161 messages 2011/06/11
[#384368] Re: RFC - One word alias for require_relative — Intransition <transfire@...> 2011/06/11

[#384654] Re: RFC - One word alias for require_relative — Ilias Lazaridis <ilias@...> 2011/06/17

On 11 撫, 20:35, Ilias Lazaridis <il...@lazaridis.com> wrote:

[#384676] Re: RFC - One word alias for require_relative — Yukihiro Matsumoto <matz@...> 2011/06/17

Hi,

[#384633] Re: RFC - One word alias for require_relative — Ilias Lazaridis <ilias@...> 2011/06/17

On 17 撫, 21:17, Gary Wright <gwtm...@mac.com> wrote:

[#384432] commit message conventions — Intransition <transfire@...>

When I write commit messages I add a "team" prefix to the message,

14 messages 2011/06/13
[#384433] Re: commit message conventions — John Feminella <johnf@...> 2011/06/13

I greatly dislike that style, to be frank. My commit messages usually

[#384467] A way to find out when a constant gets defined? — Josh Cheek <josh.cheek@...>

Hi, I'd like to be able to find out when a constant gets defined. I think I

14 messages 2011/06/14

[#384490] Messages to Ruby List/Forum/etc. not arriving equally? — Markus Fischer <markus@...>

Hi,

11 messages 2011/06/15

[#384500] CORE - Inconsistent Handling of Uninitialized Variables — Ilias Lazaridis <ilias@...>

puts "\n== Testin in MAIN Context =="

18 messages 2011/06/15

[#384617] get execution name of program — Chad Perrin <code@...>

Either $0 or __FILE__ will return a filename to give context for how a

13 messages 2011/06/17

[#384634] default config file location — Chad Perrin <code@...>

Is there a "better" way to specify a default config file location than

16 messages 2011/06/17
[#384637] Re: default config file location — "Matthew K. Williams" <matt@...> 2011/06/17

On Sat, 18 Jun 2011, Chad Perrin wrote:

[#384648] celluloid 0.0.3: a concurrent object framework for Ruby — Tony Arcieri <tony.arcieri@...>

Celluloid is a concurrent object framework for Ruby inspired by Erlang

12 messages 2011/06/17

[#384763] MIDASWAD - Matz is Dumb and so We are Dumb — Ilias Lazaridis <ilias@...>

(public draft)

46 messages 2011/06/20
[#384765] Re: MIDASWAD - Matz is Dumb and so We are Dumb — Chad Perrin <code@...> 2011/06/20

Before anyone engages this nonsense . . .

[#384772] Re: MIDASWAD - Matz is Dumb and so We are Dumb — Adam Prescott <adam@...> 2011/06/20

On 20 Jun 2011 20:32, "Chad Perrin" <code@apotheon.net> wrote:

[#384774] Re: MIDASWAD - Matz is Dumb and so We are Dumb — Sam Duncan <sduncan@...> 2011/06/20

Five posts in on this thread, and four of them are the self appointed

[#384779] Re: MIDASWAD - Matz is Dumb and so We are Dumb — David Masover <ninja@...> 2011/06/20

A quick, lazy response, because I shouldn't feed trolls anyway, and I simply

[#384788] Re: MIDASWAD - Matz is Dumb and so We are Dumb — Nikolai Weibull <now@...> 2011/06/21

On Mon, Jun 20, 2011 at 23:52, David Masover <ninja@slaphack.com> wrote:

[#384790] Re: MIDASWAD - Matz is Dumb and so We are Dumb — Adam Prescott <adam@...> 2011/06/21

On Tue, Jun 21, 2011 at 11:06 AM, Nikolai Weibull <now@bitwi.se> wrote:

[#384792] Re: MIDASWAD - Matz is Dumb and so We are Dumb — Nikolai Weibull <now@...> 2011/06/21

On Tue, Jun 21, 2011 at 13:37, Adam Prescott <adam@aprescott.com> wrote:

[#384800] How to order a hash based on its keys? — Iñaki Baz Castillo <ibc@...>

Hi, I want to order a hash using itds keys:

35 messages 2011/06/21
[#384808] Re: How to order a hash based on its keys? — Robert Klemme <shortcutter@...> 2011/06/21

On Tue, Jun 21, 2011 at 4:34 PM, Iki Baz Castillo <ibc@aliax.net> wrote:

[#384813] Re: How to order a hash based on its keys? — Iñaki Baz Castillo <ibc@...> 2011/06/21

2011/6/21 Robert Klemme <shortcutter@googlemail.com>:

[#384814] Re: How to order a hash based on its keys? — Iñaki Baz Castillo <ibc@...> 2011/06/21

2011/6/21 Iñaki Baz Castillo <ibc@aliax.net>:

[#384833] Re: How to order a hash based on its keys? — Robert Klemme <shortcutter@...> 2011/06/22

On Tue, Jun 21, 2011 at 6:34 PM, Iki Baz Castillo <ibc@aliax.net> wrote:

[#384837] Re: How to order a hash based on its keys? — Iñaki Baz Castillo <ibc@...> 2011/06/22

2011/6/22 Robert Klemme <shortcutter@googlemail.com>:

[#384843] Re: How to order a hash based on its keys? — Robert Klemme <shortcutter@...> 2011/06/22

On Wed, Jun 22, 2011 at 11:50 AM, Iki Baz Castillo <ibc@aliax.net> wrote:

[#384846] Re: How to order a hash based on its keys? — Iñaki Baz Castillo <ibc@...> 2011/06/22

2011/6/22 Robert Klemme <shortcutter@googlemail.com>:

[#384847] Re: How to order a hash based on its keys? — Robert Klemme <shortcutter@...> 2011/06/22

On Wed, Jun 22, 2011 at 3:47 PM, Iki Baz Castillo <ibc@aliax.net> wrote:

[#384849] Re: How to order a hash based on its keys? — Iñaki Baz Castillo <ibc@...> 2011/06/22

2011/6/22 Robert Klemme <shortcutter@googlemail.com>:

[#384855] Re: How to order a hash based on its keys? — Robert Klemme <shortcutter@...> 2011/06/22

On Wed, Jun 22, 2011 at 4:19 PM, Iki Baz Castillo <ibc@aliax.net> wrote:

[#384819] Gateway Shutting Down — James Gray <james@...>

Rubyists:

12 messages 2011/06/21

[#384873] Explicitly setting compiler to C++ in extconf.rb... — "Darryl L. Pierce" <mcpierce@...>

I'm trying to setup a Ruby gem that bundles the Swig-generated bindings

10 messages 2011/06/23

[#384907] SPDX (and the glazing of ones eyes) — Intransition <transfire@...>

Never ceases to amaze me how complicated "enterprisey" peoples can

17 messages 2011/06/25
[#384909] Re: SPDX (and the glazing of ones eyes) — Phillip Gawlowski <cmdjackryan@...> 2011/06/25

On Sat, Jun 25, 2011 at 5:00 PM, Intransition <transfire@gmail.com> wrote:

[#384996] A movie Renamer — Mayank Kohaley <mayank.kohaley@...>

Hello Guys,

20 messages 2011/06/29
[#385007] Re: A movie Renamer — Sam Duncan <sduncan@...> 2011/06/29

Please don't steal movies.

[#385010] Re: A movie Renamer — Chad Perrin <code@...> 2011/06/29

On Thu, Jun 30, 2011 at 06:17:55AM +0900, Sam Duncan wrote:

[#385011] Re: A movie Renamer — Sam Duncan <sduncan@...> 2011/06/29

*sigh*

[#385019] A File Renamer — Mayank Kohaley <mayank.kohaley@...>

I guess this thread has spawned another issue. Let me close this and say I

18 messages 2011/06/30
[#385021] Re: A File Renamer — Jeremy Heiler <jeremyheiler@...> 2011/06/30

On Thu, Jun 30, 2011 at 1:48 AM, Mayank Kohaley

[#385027] Re: A File Renamer — Johnny Morrice <spoon@...> 2011/06/30

> Is there a pattern to the file names you are working with? The key is

Re: CORE - Altering Behaviour of "each do" (default param "item")

From: Robert Klemme <shortcutter@...>
Date: 2011-06-05 12:15:26 UTC
List: ruby-talk #384132
On 05.06.2011 07:53, Ilias Lazaridis wrote:
> On 4 Ιούν, 21:02, Robert Klemme<shortcut...@googlemail.com>  wrote:
>> On 04.06.2011 16:19, Michael Sokol wrote:
>>
>>> Actually it would be possible, although very ugly.
>>
>>> You need to evaluate in the context of the current instance
>>> (instance_eval) - not yield - the block you pass to the each method
>>> of your object (an array in this case).
>>
>>> Then you can define a print method that behaves like a coroutine
>>> (check out ruby fibers) and returns each element of your array.
>>
>> There is another approach which does not suffer from the side effect of
>> changing self which can be disastrous: create a thread local which holds
>> a stack of values and make item peek at the top element of it:
>>
>> class Object
>>     def new_each
>>       stack = (Thread.current[:__item__] ||= [])
>
> what does "(Thread.current[:__item__] ||= [])" do?

You ask for things that modify the language and need meta programming in 
its implementation yet you do not seem to be comfortable with basic 
language functionality - or willing to find out.  I sense a certain 
contradiction here.

>>       each do |x|
>>         stack.push x
> [...]
>
>> This approach
>> - does not change 'self'
>> - is thread safe
>> - is nesting safe
>
> This sounds good.
>
> But you suggestion adds Class#new_each.

It doesn't.  It adds Object#new_each.

> The goal was, to alter the existent behaviour of Array#each.

Ilias, this is not the goal assignment channel.  You have your goals, 
other people have different goals.

> I've tried to modify your code to achieve this, but I failed.

Why don't you just post your code and let people comment on it?  If you 
think about this failure you might find out why making Ruby more like 
Groovy in this respect might not be such a good idea altogether.  If you 
read documentation of Enumerable you will see why it is a bad idea to 
attempt this with method #each.

Cheers

	robert

-- 
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/


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