[#9869] a block argument within a block which argument has the same name leaks — <noreply@...>

Bugs item #7680, was opened at 2007-01-08 22:53

34 messages 2007/01/08
[#9871] Re: [ ruby-Bugs-7680 ] a block argument within a block which argument has the same name leaks — Yukihiro Matsumoto <matz@...> 2007/01/08

Hi,

[#9872] Re: [ ruby-Bugs-7680 ] a block argument within a block which argument has the same name leaks — Evan Webb <evan@...> 2007/01/08

On Jan 8, 2007, at 2:30 PM, Yukihiro Matsumoto wrote:

[#9873] Re: [ ruby-Bugs-7680 ] a block argument within a block which argument has the same name leaks — Yukihiro Matsumoto <matz@...> 2007/01/08

Hi,

[#9876] Re: [ ruby-Bugs-7680 ] a block argument within a block which argument has the same name leaks — dblack@... 2007/01/09

Hi --

[#9878] Re: [ ruby-Bugs-7680 ] a block argument within a block which argument has the same name leaks — Yukihiro Matsumoto <matz@...> 2007/01/09

Hi,

[#9879] Re: [ ruby-Bugs-7680 ] a block argument within a block which argument has the same name leaks — dblack@... 2007/01/09

Hi --

[#9880] Re: [ ruby-Bugs-7680 ] a block argument within a block which argument has the same name leaks — Yukihiro Matsumoto <matz@...> 2007/01/09

Hi,

[#9882] Re: [ ruby-Bugs-7680 ] a block argument within a block which argument has the same name leaks — Evan Phoenix <evan@...> 2007/01/09

[#9885] Re: [ ruby-Bugs-7680 ] a block argument within a block which argument has the same name leaks — Yukihiro Matsumoto <matz@...> 2007/01/09

Hi,

[#9887] Re: [ ruby-Bugs-7680 ] a block argument within a block which argument has the same name leaks — Evan Phoenix <evan@...> 2007/01/09

[#9888] Re: [ ruby-Bugs-7680 ] a block argument within a block which argument has the same name leaks — Charles Oliver Nutter <charles.nutter@...> 2007/01/09

Evan Phoenix wrote:

[#9892] Re: [ ruby-Bugs-7680 ] a block argument within a block which argument has the same name leaks — Yukihiro Matsumoto <matz@...> 2007/01/09

Hi,

[#9899] Re: [ ruby-Bugs-7680 ] a block argument within a block which argument has the same name leaks — Charles Oliver Nutter <charles.nutter@...> 2007/01/10

Yukihiro Matsumoto wrote:

[#9904] Re: [ ruby-Bugs-7680 ] a block argument within a block which argument has the same name leaks — Yukihiro Matsumoto <matz@...> 2007/01/10

Hi,

[#9960] Scoping and locating definitions — Jos Backus <jos@...>

Consider the following:

17 messages 2007/01/18
[#9964] Re: Scoping and locating definitions — Pit Capitain <pit@...> 2007/01/19

Jos Backus schrieb:

[#9966] Re: Scoping and locating definitions — Jos Backus <jos@...> 2007/01/19

On Fri, Jan 19, 2007 at 06:40:03PM +0900, Pit Capitain wrote:

[#9972] Re: Scoping and locating definitions — Jos Backus <jos@...> 2007/01/19

On Sat, Jan 20, 2007 at 02:18:19AM +0900, Jos Backus wrote:

[#9996] new method dispatch rule (matz' proposal) — SASADA Koichi <ko1@...>

Hi,

50 messages 2007/01/23
[#10002] Re: new method dispatch rule (matz' proposal) — Daniel DeLorme <dan-ml@...42.com> 2007/01/23

SASADA Koichi wrote:

[#10003] Re: new method dispatch rule (matz' proposal) — Yukihiro Matsumoto <matz@...> 2007/01/23

Hi,

[#10004] Re: new method dispatch rule (matz' proposal) — James Edward Gray II <james@...> 2007/01/23

On Jan 23, 2007, at 7:41 AM, Yukihiro Matsumoto wrote:

[#10017] Re: new method dispatch rule (matz' proposal) — Daniel DeLorme <dan-ml@...42.com> 2007/01/24

Yukihiro Matsumoto wrote:

[#10018] Re: new method dispatch rule (matz' proposal) — Yukihiro Matsumoto <matz@...> 2007/01/24

Hi,

[#10024] Re: new method dispatch rule (matz' proposal) — Daniel DeLorme <dan-ml@...42.com> 2007/01/24

Yukihiro Matsumoto wrote:

[#10027] Re: new method dispatch rule (matz' proposal) — Yukihiro Matsumoto <matz@...> 2007/01/24

Hi,

[#10048] Re: new method dispatch rule (matz' proposal) — Evan Phoenix <evan@...> 2007/01/25

The more this discussion goes on, the more I worry that Joe Q Public

[#10019] stable branch policy & schedule for 1.8.6 — "Akinori MUSHA" <knu@...>

Core developers,

29 messages 2007/01/24
[#10021] Re: stable branch policy & schedule for 1.8.6 — Charles Oliver Nutter <charles.nutter@...> 2007/01/24

Akinori MUSHA wrote:

[#10032] Re: stable branch policy & schedule for 1.8.6 — Joel VanderWerf <vjoel@...> 2007/01/24

Charles Oliver Nutter wrote:

[#10085] Collaborative Ruby Language Specification — "John Lam (CLR)" <jflam@...>

Hi Everyone,

36 messages 2007/01/28
[#10108] Re: Collaborative Ruby Language Specification — Charles Oliver Nutter <charles.nutter@...> 2007/01/29

M. Edward (Ed) Borasky wrote:

[#10112] Re: Collaborative Ruby Language Specification — "Eustaquio Rangel de Oliveira Jr." <eustaquiorangel@...> 2007/01/30

-----BEGIN PGP SIGNED MESSAGE-----

[#10114] add usage of uri.userinfo to open-uri.rb — <noreply@...>

Patches item #8309, was opened at 2007-01-30 15:25

16 messages 2007/01/30
[#10131] Re: [ ruby-Patches-8309 ] add usage of uri.userinfo to open-uri.rb — Yukihiro Matsumoto <matz@...> 2007/01/31

[#10132] Re: [ ruby-Patches-8309 ] add usage of uri.userinfo to open-uri.rb — Paulo Kh <paulo.koch@...> 2007/01/31

On 2007/01/31, at 06:07, Yukihiro Matsumoto wrote:

[#10137] Re: [ ruby-Patches-8309 ] add usage of uri.userinfo to open-uri.rb — Yukihiro Matsumoto <matz@...> 2007/01/31

Hi,

[#10139] Re: [ ruby-Patches-8309 ] add usage of uri.userinfo to open-uri.rb — Sam Roberts <sroberts@...> 2007/01/31

On Thu, Feb 01, 2007 at 01:19:34AM +0900, Yukihiro Matsumoto wrote:

[#10143] Re: [ ruby-Patches-8309 ] add usage of uri.userinfo to open-uri.rb — Yukihiro Matsumoto <matz@...> 2007/02/01

Hi,

Re: [ ruby-Bugs-7680 ] a block argument within a block which argument has the same name leaks

From: Charles Oliver Nutter <charles.nutter@...>
Date: 2007-01-13 01:44:49 UTC
List: ruby-core #9940
Yukihiro Matsumoto wrote:
> Hi,
> 
> In message "Re: [ ruby-Bugs-7680 ] a block argument within a block which argument has the same name leaks"
>     on Tue, 9 Jan 2007 15:19:10 +0900, Evan Phoenix <evan@fallingsnow.net> writes:
> 
> |I agree they need work. Why not go back to the rubyconf 2005  
> |proposal? I believe it was to allow new vars created in a block to be  
> |normal local variables (not dvars). I've discussed the expected  
> |behavior of local variables in ruby to new users and this is what  
> |they expect.
> 
> Evan, I have considered your words for these days, and you gave me an
> inspiration.  I think I get an idea.  Thank you.  Stay tuned.

Just for the record, most folks I've polled expect variables to work the 
other way, where variables referenced only inner scopes aren't visible 
to outer scopes. But I mostly polled the folks I deal with every 
day...programmers with many years of experience in lexically-scoped 
languages.

There's also no performance-related reason to flatten scope; JRuby's 
interpreter and compiler do not have any additional overhead for 
variables in different scopes.

I believe there are enough down sides to having a flat scope that the 
few benefits would be greatly outweighed.

-- 
Charles Oliver Nutter, JRuby Core Developer
Blogging on Ruby and Java @ headius.blogspot.com
Help spec out Ruby today! @ www.headius.com/rubyspec
headius@headius.com -- charles.nutter@sun.com

In This Thread