[#53944] [ruby-trunk - Bug #8210][Open] Multibyte character interfering with end-line character within a regex — "sawa (Tsuyoshi Sawada)" <sawadatsuyoshi@...>

14 messages 2013/04/03

[#53974] [ruby-trunk - Feature #8215][Open] Support accessing Fiber-locals and backtraces for a Fiber — "halorgium (Tim Carey-Smith)" <ruby-lang-bugs@...>

14 messages 2013/04/03

[#54095] [ruby-trunk - Feature #8237][Open] Logical method chaining via inferred receiver — "wardrop (Tom Wardrop)" <tom@...>

34 messages 2013/04/08

[#54138] [ruby-trunk - Bug #8241][Open] If uri host-part has underscore ( '_' ), 'URI#parse' raise 'URI::InvalidURIError' — "neocoin (Sangmin Ryu)" <neocoin@...>

9 messages 2013/04/09

[#54185] [CommonRuby - Feature #8257][Open] Exception#cause to carry originating exception along with new one — "headius (Charles Nutter)" <headius@...>

43 messages 2013/04/11

[#54196] Encouraging use of CommonRuby — Charles Oliver Nutter <headius@...>

I think we need to do more to encourage the use of the CommonRuby

20 messages 2013/04/11
[#54200] Re: Encouraging use of CommonRuby — Marc-Andre Lafortune <ruby-core-mailing-list@...> 2013/04/11

Hi,

[#54211] Re: Encouraging use of CommonRuby — "NARUSE, Yui" <naruse@...> 2013/04/12

As far as I understand, what is CommonRuby and the process over CommonRuby

[#54207] [CommonRuby - Feature #8258][Open] Dir#escape_glob — "steveklabnik (Steve Klabnik)" <steve@...>

15 messages 2013/04/12

[#54218] [CommonRuby - Feature #8259][Open] Atomic attributes accessors — "funny_falcon (Yura Sokolov)" <funny.falcon@...>

43 messages 2013/04/12

[#54288] [CommonRuby - Feature #8271][Open] Proposal for moving to a more visible, formal process for feature requests — "headius (Charles Nutter)" <headius@...>

15 messages 2013/04/15

[#54333] Requesting Commit Access — Aman Gupta <[email protected]>

Hello ruby-core,

16 messages 2013/04/16

[#54473] [Backport 200 - Backport #8299][Open] Minor error in float parsing — "bobjalex (Bob Alexander)" <bobjalex@...>

27 messages 2013/04/19

[#54532] [ruby-trunk - Bug #8315][Open] mkmf does not include include paths from pkg_config anymore — "Hanmac (Hans Mackowiak)" <hanmac@...>

11 messages 2013/04/23

[#54621] [ruby-trunk - Feature #8339][Open] Introducing Geneartional Garbage Collection for CRuby/MRI — "ko1 (Koichi Sasada)" <redmine@...>

43 messages 2013/04/27
[#54643] [ruby-trunk - Feature #8339] Introducing Geneartional Garbage Collection for CRuby/MRI — "authorNari (Narihiro Nakamura)" <authorNari@...> 2013/04/28

[#54649] Re: [ruby-trunk - Feature #8339] Introducing Geneartional Garbage Collection for CRuby/MRI — SASADA Koichi <ko1@...> 2013/04/28

(2013/04/28 9:23), authorNari (Narihiro Nakamura) wrote:

[#54657] Re: [ruby-trunk - Feature #8339][Open] Introducing Geneartional Garbage Collection for CRuby/MRI — Magnus Holm <judofyr@...> 2013/04/28

On Sat, Apr 27, 2013 at 8:19 PM, ko1 (Koichi Sasada)

[#54665] [ruby-trunk - Bug #8344][Open] Status of Psych and Syck — "Eregon (Benoit Daloze)" <redmine@...>

18 messages 2013/04/28

[ruby-core:54146] [ruby-trunk - Feature #8229] extend Hash.include?

From: "marcandre (Marc-Andre Lafortune)" <ruby-core@...>
Date: 2013-04-09 16:17:21 UTC
List: ruby-core #54146
Issue #8229 has been updated by marcandre (Marc-Andre Lafortune).


Could you elaborate on why this is needed and in which cases one would need this?

Moreover, I would not write `h.include?(key) && h[key] == value`. In most cases `h[key] == value` is sufficient (unless value can be nil or there's a default proc). Otherwise one can write `h.fetch(key, DIFFERENT) == value`, where DIFFERENT is an value different from all possible values of the hash, like Object.new).
----------------------------------------
Feature #8229: extend Hash.include?
https://bugs.ruby-lang.org/issues/8229#change-38400

Author: eike.rb (Eike Dierks)
Status: Open
Priority: Normal
Assignee: matz (Yukihiro Matsumoto)
Category: core
Target version: Next Major


I'd like to suggest to extend the Hash.include? method.

Currently Hash.include? can only be used to ask for a key,
I believe it should be extended to ask for a (key value) pair.

I believe this extension can be done without breaking prior api.

I suggest to extend the signature of Hash.include?
to Hash.include?(key, value)

That message should return true,
if the receiving object does have an object at key which is equal to value.

It would be a simple replacement for:
    h.include?(key) && h[key] == value

But I do not want to stop there.
I'm heading for h.include_all?(other_hash)
and h.include_any?(other_hash)

and it would be valuable to have h.intersect(other_hash) etc

I believe these to be useful primitives when working with hashes.

I'd like to have the api of the Set class available for the Hash class as well,
but there working on key/value matching.

Obviously any change to such the substantial class as the Hash class
needs a lot of thought for compatibility.

But I believe this can be done without breaking any prior code,
and it could add a lot of new out of the box functionality.

This probably needs some more thought.
We might come up with some dsl like thing like
h.includes.any? or h.includes.all? or h.includes.none?
to be used cross all collection classes.

Someone must be in charge for the Hash class,
my 2p


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