[#8997] Re: [ruby-cvs:18323] ruby: * eval.c (splat_value): use "to_splat" instead of "to_ary" to — Mathieu Bouchard <matju@...>

On Tue, 3 Oct 2006, matz wrote:

77 messages 2006/10/04
[#8998] Re: [ruby-cvs:18323] ruby: * eval.c (splat_value): use "to_splat" instead of "to_ary" to — Yukihiro Matsumoto <matz@...> 2006/10/04

Hi,

[#9029] Re: [ruby-cvs:18323] ruby: * eval.c (splat_value): use "to_splat" instead of "to_ary" to — Mathieu Bouchard <matju@...> 2006/10/08

On Wed, 4 Oct 2006, Yukihiro Matsumoto wrote:

[#9030] Re: [ruby-cvs:18323] ruby: * eval.c (splat_value): use "to_splat" instead of "to_ary" to — Yukihiro Matsumoto <matz@...> 2006/10/08

Hi,

[#9034] Re: [ruby-cvs:18323] ruby: * eval.c (splat_value): use "to_splat" instead of "to_ary" to — Dave Burt <dave@...> 2006/10/09

Yukihiro Matsumoto wrote:

[#9041] Re: [ruby-cvs:18323] ruby: * eval.c (splat_value): use "to_splat" instead of "to_ary" to — Yukihiro Matsumoto <matz@...> 2006/10/09

Hi,

[#9042] Re: [ruby-cvs:18323] ruby: * eval.c (splat_value): use "to_splat" instead of "to_ary" to — dblack@... 2006/10/09

Hi --

[#9043] Re: [ruby-cvs:18323] ruby: * eval.c (splat_value): use "to_splat" instead of "to_ary" to — Yukihiro Matsumoto <matz@...> 2006/10/09

Hi,

[#9044] Re: [ruby-cvs:18323] ruby: * eval.c (splat_value): use "to_splat" instead of "to_ary" to — dblack@... 2006/10/09

Hi --

[#9045] Re: [ruby-cvs:18323] ruby: * eval.c (splat_value): use "to_splat" instead of "to_ary" to — Yukihiro Matsumoto <matz@...> 2006/10/09

Hi,

[#9047] Re: [ruby-cvs:18323] ruby: * eval.c (splat_value): use "to_splat" instead of "to_ary" to — dblack@... 2006/10/09

Hi --

[#9050] Re: [ruby-cvs:18323] ruby: * eval.c (splat_value): use "to_splat" instead of "to_ary" to — James Edward Gray II <james@...> 2006/10/09

On Oct 9, 2006, at 10:19 AM, dblack@wobblini.net wrote:

[#9053] Re: [ruby-cvs:18323] ruby: * eval.c (splat_value): use "to_splat" instead of "to_ary" to — Eero Saynatkari <ruby-ml@...> 2006/10/09

On 2006.10.10 00:31, James Edward Gray II wrote:

[#9055] Re: [ruby-cvs:18323] ruby: * eval.c (splat_value): use "to_splat" instead of "to_ary" to — James Edward Gray II <james@...> 2006/10/09

On Oct 9, 2006, at 11:50 AM, Eero Saynatkari wrote:

[#9056] Re: [ruby-cvs:18323] ruby: * eval.c (splat_value): use "to_splat" instead of "to_ary" to — dblack@... 2006/10/09

Hi --

[#9054] Re: [ruby-cvs:18323] ruby: * eval.c (splat_value): use "to_splat" instead of "to_ary" to — dblack@... 2006/10/09

Hi --

[#9066] Re: [ruby-cvs:18323] ruby: * eval.c (splat_value): use "to_splat" instead of "to_ary" to — Yukihiro Matsumoto <matz@...> 2006/10/09

Hi,

[#9072] Re: [ruby-cvs:18323] ruby: * eval.c (splat_value): use "to_splat" instead of "to_ary" to — dblack@... 2006/10/10

Hi --

[#9083] Re: [ruby-cvs:18323] ruby: * eval.c (splat_value): use "to_splat" instead of "to_ary" to — Yukihiro Matsumoto <matz@...> 2006/10/10

Hi,

[#9119] What about 'splay'? — dblack@...

Hi --

37 messages 2006/10/11
[#9122] Re: What about 'splay'? — Eero Saynatkari <ruby-ml@...> 2006/10/11

On 2006.10.12 02:32, dblack@wobblini.net wrote:

[#9127] Re: What about 'splay'? — Sean Russell <ser@...> 2006/10/11

On Wednesday 11 October 2006 13:55, Eero Saynatkari wrote:

[#9188] Symbol < String in Ruby > 1.8 — dblack@...

Hi --

107 messages 2006/10/15
[#9192] Re: Symbol < String in Ruby > 1.8 — Yukihiro Matsumoto <matz@...> 2006/10/16

Hi

[#9212] Re: Symbol < String in Ruby > 1.8 — Charles Oliver Nutter <Charles.O.Nutter@...> 2006/10/17

Yukihiro Matsumoto wrote:

[#9238] Re: Symbol < String in Ruby > 1.8 — Charles Oliver Nutter <Charles.O.Nutter@...> 2006/10/18

Charles Oliver Nutter wrote:

[#9244] Re: Symbol < String in Ruby > 1.8 — Sam Roberts <sroberts@...> 2006/10/18

On Thu, Oct 19, 2006 at 05:06:02AM +0900, Charles Oliver Nutter wrote:

[#9255] Re: Symbol < String in Ruby > 1.8 — Yukihiro Matsumoto <matz@...> 2006/10/19

Hi,

[#9256] Re: Symbol < String in Ruby > 1.8 — Sam Roberts <sroberts@...> 2006/10/19

Quoting matz@ruby-lang.org, on Thu, Oct 19, 2006 at 01:40:42PM +0900:

[#9190] Re: Symbol < String in Ruby > 1.8 — "Rick DeNatale" <rick.denatale@...> 2006/10/16

On 10/15/06, dblack@wobblini.net <dblack@wobblini.net> wrote:

[#9191] Re: Symbol < String in Ruby > 1.8 — dblack@... 2006/10/16

Hi --

[#9194] Re: Symbol < String in Ruby > 1.8 — "Rick DeNatale" <rick.denatale@...> 2006/10/16

On 10/15/06, dblack@wobblini.net <dblack@wobblini.net> wrote:

[#9196] Re: Symbol < String in Ruby > 1.8 — Yukihiro Matsumoto <matz@...> 2006/10/16

Hi,

[#9202] Re: Symbol < String in Ruby > 1.8 — "Rick DeNatale" <rick.denatale@...> 2006/10/16

On 10/16/06, Yukihiro Matsumoto <matz@ruby-lang.org> wrote:

[#9203] Re: Symbol < String in Ruby > 1.8 — James Edward Gray II <james@...> 2006/10/16

On Oct 16, 2006, at 3:06 PM, Rick DeNatale wrote:

[#9205] String not enumerable, what about IO? (was Re: Symbol < String in Ruby > 1.8) — Sam Roberts <sroberts@...> 2006/10/16

On Tue, Oct 17, 2006 at 05:14:09AM +0900, James Edward Gray II wrote:

[#9218] Re: String not enumerable, what about IO? (was Re: Symbol < String in Ruby > 1.8) — "Rick DeNatale" <rick.denatale@...> 2006/10/17

On 10/16/06, Sam Roberts <sroberts@uniserve.com> wrote:

[#9220] Re: String not enumerable, what about IO? (was Re: Symbol < String in Ruby > 1.8) — Nobuyoshi Nakada <nobu@...> 2006/10/17

Hi,

[#9225] Re: String not enumerable, what about IO? (was Re: Symbol < String in Ruby > 1.8) — dblack@... 2006/10/18

Hi --

[#9226] Re: String not enumerable, what about IO? (was Re: Symbol < String in Ruby > 1.8) — James Edward Gray II <james@...> 2006/10/18

On Oct 17, 2006, at 7:29 PM, dblack@wobblini.net wrote:

[#9230] Re: String not enumerable, what about IO? (was Re: Symbol < String in Ruby > 1.8) — dblack@... 2006/10/18

Hi --

[#9231] Re: String not enumerable, what about IO? (was Re: Symbol < String in Ruby > 1.8) — Eric Hodel <drbrain@...7.net> 2006/10/18

On Oct 18, 2006, at 4:18 AM, dblack@wobblini.net wrote:

[#9232] Re: String not enumerable, what about IO? (was Re: Symbol < String in Ruby > 1.8) — "Nikolai Weibull" <now@...> 2006/10/18

On 10/18/06, Eric Hodel <drbrain@segment7.net> wrote:

[#9234] Re: String not enumerable, what about IO? (was Re: Symbol < String in Ruby > 1.8) — mathew <meta@...> 2006/10/18

On 10/18/06, Nikolai Weibull <now@bitwi.se> wrote:

[#9236] Re: String not enumerable, what about IO? (was Re: Symbol < String in Ruby > 1.8) — "Nikolai Weibull" <now@...> 2006/10/18

On 10/18/06, mathew <meta@pobox.com> wrote:

[#9237] Re: String not enumerable, what about IO? (was Re: Symbol < String in Ruby > 1.8) — Mauricio Fernandez <mfp@...> 2006/10/18

On Thu, Oct 19, 2006 at 04:24:24AM +0900, Nikolai Weibull wrote:

[#9240] Re: String not enumerable, what about IO? (was Re: Symbol < String in Ruby > 1.8) — "Nikolai Weibull" <now@...> 2006/10/18

On 10/18/06, Mauricio Fernandez <mfp@acm.org> wrote:

[#9242] Re: String not enumerable, what about IO? (was Re: Symbol < String in Ruby > 1.8) — dblack@... 2006/10/18

Hi --

[#9247] Re: String not enumerable, what about IO? (was Re: Symbol < String in Ruby > 1.8) — "Rick DeNatale" <rick.denatale@...> 2006/10/19

On 10/18/06, dblack@wobblini.net <dblack@wobblini.net> wrote:

[#9250] Re: String not enumerable, what about IO? (was Re: Symbol < String in Ruby > 1.8) — Jim Weirich <jim@...> 2006/10/19

Rick DeNatale wrote:

[#9261] Re: String not enumerable, what about IO? (was Re: Symbol < String in Ruby > 1.8) — dblack@... 2006/10/19

Hi --

[#9262] Re: String not enumerable, what about IO? (was Re: Symbol < String in Ruby > 1.8) — Yukihiro Matsumoto <matz@...> 2006/10/19

Hi,

[#9264] Re: String not enumerable, what about IO? (was Re: Symbol < String in Ruby > 1.8) — dblack@... 2006/10/19

Hi --

[#9267] Re: String not enumerable, what about IO? (was Re: Symbol < String in Ruby > 1.8) — "Nikolai Weibull" <now@...> 2006/10/19

On 10/19/06, dblack@wobblini.net <dblack@wobblini.net> wrote:

[#9277] Re: String not enumerable, what about IO? (was Re: Symbol < String in Ruby > 1.8) — dblack@... 2006/10/19

Hi --

[#9285] Re: String not enumerable, what about IO? (was Re: Symbol < String in Ruby > 1.8) — "Nikolai Weibull" <now@...> 2006/10/20

On 10/19/06, dblack@wobblini.net <dblack@wobblini.net> wrote:

[#9288] Re: String not enumerable, what about IO? (was Re: Symbol < String in Ruby > 1.8) — dblack@... 2006/10/20

Hi --

[#9289] Re: String not enumerable, what about IO? (was Re: Symbol < String in Ruby > 1.8) — Jim Weirich <jim@...> 2006/10/20

dblack@wobblini.net wrote:

[#9294] Re: String not enumerable, what about IO? (was Re: Symbol < String in Ruby > 1.8) — Yukihiro Matsumoto <matz@...> 2006/10/20

Hi,

[#9300] Re: String not enumerable, what about IO? (was Re: Symbol < String in Ruby > 1.8) — dblack@... 2006/10/20

Hi --

Re: Symbol < String in Ruby > 1.8

From: Charles Oliver Nutter <Charles.O.Nutter@...>
Date: 2006-10-17 08:06:13 UTC
List: ruby-core #9212
Yukihiro Matsumoto wrote:
>   * in preparation M17N enhancement, a symbol should contain encoding
>     information as well as strings.  it was most natural to inherit
>     String class to accomplish this.

My understanding of symbols was primarily that they were an ID within 
the runtime that happened to have a convenient string form, rather than 
a string that was used as an ID. Is this an incorrect way of thinking?

> 
>   * methods like instance_variables, methods etc. should return
>     Symbols, not mere Strings, because they are exposed internal
>     names.  For better migration path, Symbols should act more like
>     strings.
> 

This seems reasonable, for both 1.9 and 1.8, actually.

>   * so, Symbols are now immutable, interned strings, with some
>     performance enhancement.
> 

This seems to raise a red flag for me. String, the superclass, will be 
mutable, and has mutating methods on it like << and reverse!. Now Symbol 
will be a subclass of String, but it will not fulfill several of 
String's promises. Symbol will be kind_of? String, but you can't << or 
reverse! it. Moreover, this seems to be anti-OO...the contract of the 
superclass is not being maintained by the subclass. By asserting that 
Symbol is immutable, you are automatically saying it is not String, 
since all Strings are mutable.

The remaining reasons seem logical enough, but this issue really bothers me.

-- 
Charles Oliver Nutter, JRuby Core Developer
headius@headius.com -- charles.o.nutter@sun.com
Blogging at headius.blogspot.com

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