[ruby-core:102064] [Ruby master Misc#17535] DevelopersMeeting20210216Japan

[ruby-core:102064] [Ruby master Misc#17535] DevelopersMeeting20210216Japan

[mame]

Issue #17535 has been reported by mame (Yusuke Endoh).

----------------------------------------
Misc #17535: DevelopersMeeting20210216Japan
https://bugs.ruby-lang.org/issues/17535

* Author: mame (Yusuke Endoh)
* Status: Open
* Priority: Normal
----------------------------------------
# The next dev meeting

**Date: 2021/02/16 13:00-17:00**
Place/Sign-up/Agenda/Log: *TBD*

- Dev meeting *IS NOT* a decision-making place. All decisions should be done at the bug tracker.
- Dev meeting is a place we can ask Matz, nobu, nurse and other developers directly.
- Matz is a very busy person. Take this opportunity to ask him. If you can not attend, other attendees can ask instead of you (if attendees can understand your issue).
- We will write a log about the discussion to a file or to each ticket in English.
- All activities are best-effort (keep in mind that most of us are volunteer developers).
- The date, time and place are scheduled according to when/where we can reserve Matz's time.
- *DO NOT* discuss then on this ticket, please.

# Call for agenda items

If you have a ticket that you want matz and committers to discuss, please post it into this ticket in the following format:

```
* [Ticket ref] Ticket title (your name)
  * Comment (A summary of the ticket, why you put this ticket here, what point should be discussed, etc.)
```

Example:

```
* [Feature #14609] `Kernel#p` without args shows the receiver (ko1)
  * I feel this feature is very useful and some people say :+1: so let discuss this feature.
```

- It is recommended to add a comment by 2021/02/13. We hold a preparatory meeting to create an agenda a few days before the dev-meeting.
- The format is strict.  We'll use [this script to automatically create an markdown-style agenda](https://gist.github.com/mame/b0390509ce1491b43610b9ebb665eb86).  We may ignore a comment that does not follow the format.
- Your comment is mandatory. We cannot read all discussion of the ticket in a limited time. We appreciate it if you could write a short summary and update from a previous discussion.




-- 
https://bugs.ruby-lang.org/

[ruby-core:102073] [Ruby master Misc#17535] DevelopersMeeting20210216Japan

[muraken]

Issue #17535 has been updated by mrkn (Kenta Murata).


* [Feature #17291] Optimize `__send__` call (mrkn)
  * [rspec-mocks](https://github.com/rspec/rspec-mocks) depends on redefining `__send__` to detect the form of the method call in a mock object.
  * The mock object raises NoMethodError when the method call form is `obj.method` and the called method is not public.
    * This behavior occurs the following step:
      1. [Keeping the method name at `__send__` and `send` in mock object](https://github.com/rspec/rspec-mocks/blob/c1a86de005c5aa7885dbc92487422b0c0f43d324/lib/rspec/mocks/verifying_double.rb#L45-L57)
      1. [Check the method called via `__send__` at `method_missing`](https://github.com/rspec/rspec-mocks/blob/c1a86de005c5aa7885dbc92487422b0c0f43d324/lib/rspec/mocks/verifying_double.rb#L20-L35)
      1. [Check the method visibility in `ensure_publicly_implemented`](https://github.com/rspec/rspec-mocks/blob/c1a86de005c5aa7885dbc92487422b0c0f43d324/lib/rspec/mocks/verifying_proxy.rb#L48-L54)
      1. [Raise `NoMethodError` in `raise_non_public_error`](https://github.com/rspec/rspec-mocks/blob/c1a86de005c5aa7885dbc92487422b0c0f43d324/lib/rspec/mocks/error_generator.rb#L111-L115)
  * The new feature to detect the method call form is necessary to keep this behavior when we introduce this optimization of `__send__`.

----------------------------------------
Misc #17535: DevelopersMeeting20210216Japan
https://bugs.ruby-lang.org/issues/17535#change-89933

* Author: mame (Yusuke Endoh)
* Status: Open
* Priority: Normal
----------------------------------------
# The next dev meeting

**Date: 2021/02/16 13:00-17:00**
Place/Sign-up/Agenda/Log: *TBD*

- Dev meeting *IS NOT* a decision-making place. All decisions should be done at the bug tracker.
- Dev meeting is a place we can ask Matz, nobu, nurse and other developers directly.
- Matz is a very busy person. Take this opportunity to ask him. If you can not attend, other attendees can ask instead of you (if attendees can understand your issue).
- We will write a log about the discussion to a file or to each ticket in English.
- All activities are best-effort (keep in mind that most of us are volunteer developers).
- The date, time and place are scheduled according to when/where we can reserve Matz's time.
- *DO NOT* discuss then on this ticket, please.

# Call for agenda items

If you have a ticket that you want matz and committers to discuss, please post it into this ticket in the following format:

```
* [Ticket ref] Ticket title (your name)
  * Comment (A summary of the ticket, why you put this ticket here, what point should be discussed, etc.)
```

Example:

```
* [Feature #14609] `Kernel#p` without args shows the receiver (ko1)
  * I feel this feature is very useful and some people say :+1: so let discuss this feature.
```

- It is recommended to add a comment by 2021/02/13. We hold a preparatory meeting to create an agenda a few days before the dev-meeting.
- The format is strict.  We'll use [this script to automatically create an markdown-style agenda](https://gist.github.com/mame/b0390509ce1491b43610b9ebb665eb86).  We may ignore a comment that does not follow the format.
- Your comment is mandatory. We cannot read all discussion of the ticket in a limited time. We appreciate it if you could write a short summary and update from a previous discussion.




-- 
https://bugs.ruby-lang.org/

[ruby-core:102104] [Ruby master Misc#17535] DevelopersMeeting20210216Japan

[nobu]

Issue #17535 has been updated by nobu (Nobuyoshi Nakada).


* [Feature #17544] Support RFC 3339 UTC for unknown offset local time
  * In RFC 3339, -00:00 is used for the time in UTC is known, but the offset to local time is unknown.
    Support that representation by `-` flag for `z`.


----------------------------------------
Misc #17535: DevelopersMeeting20210216Japan
https://bugs.ruby-lang.org/issues/17535#change-89961

* Author: mame (Yusuke Endoh)
* Status: Open
* Priority: Normal
----------------------------------------
# The next dev meeting

**Date: 2021/02/16 13:00-17:00**
Place/Sign-up/Agenda/Log: *TBD*

- Dev meeting *IS NOT* a decision-making place. All decisions should be done at the bug tracker.
- Dev meeting is a place we can ask Matz, nobu, nurse and other developers directly.
- Matz is a very busy person. Take this opportunity to ask him. If you can not attend, other attendees can ask instead of you (if attendees can understand your issue).
- We will write a log about the discussion to a file or to each ticket in English.
- All activities are best-effort (keep in mind that most of us are volunteer developers).
- The date, time and place are scheduled according to when/where we can reserve Matz's time.
- *DO NOT* discuss then on this ticket, please.

# Call for agenda items

If you have a ticket that you want matz and committers to discuss, please post it into this ticket in the following format:

```
* [Ticket ref] Ticket title (your name)
  * Comment (A summary of the ticket, why you put this ticket here, what point should be discussed, etc.)
```

Example:

```
* [Feature #14609] `Kernel#p` without args shows the receiver (ko1)
  * I feel this feature is very useful and some people say :+1: so let discuss this feature.
```

- It is recommended to add a comment by 2021/02/13. We hold a preparatory meeting to create an agenda a few days before the dev-meeting.
- The format is strict.  We'll use [this script to automatically create an markdown-style agenda](https://gist.github.com/mame/b0390509ce1491b43610b9ebb665eb86).  We may ignore a comment that does not follow the format.
- Your comment is mandatory. We cannot read all discussion of the ticket in a limited time. We appreciate it if you could write a short summary and update from a previous discussion.




-- 
https://bugs.ruby-lang.org/

[ruby-core:102279] [Ruby master Misc#17535] DevelopersMeeting20210216Japan

[eregontp]

Issue #17535 has been updated by Eregon (Benoit Daloze).


* [Feature #15752] A dedicated module for experimental features (eregon)
  * From the discussion about RubyVM in [Feature #17500], I think it became clear that RubyVM is not a good place to put experimental features.
  * So, how about adding an `Experimental` or `ExperimentalFeatures` module, and add new experimental APIs there, *instead* of in RubyVM?

----------------------------------------
Misc #17535: DevelopersMeeting20210216Japan
https://bugs.ruby-lang.org/issues/17535#change-90132

* Author: mame (Yusuke Endoh)
* Status: Open
* Priority: Normal
----------------------------------------
# The next dev meeting

**Date: 2021/02/16 13:00-17:00**
Place/Sign-up/Agenda/Log: *TBD*

- Dev meeting *IS NOT* a decision-making place. All decisions should be done at the bug tracker.
- Dev meeting is a place we can ask Matz, nobu, nurse and other developers directly.
- Matz is a very busy person. Take this opportunity to ask him. If you can not attend, other attendees can ask instead of you (if attendees can understand your issue).
- We will write a log about the discussion to a file or to each ticket in English.
- All activities are best-effort (keep in mind that most of us are volunteer developers).
- The date, time and place are scheduled according to when/where we can reserve Matz's time.
- *DO NOT* discuss then on this ticket, please.

# Call for agenda items

If you have a ticket that you want matz and committers to discuss, please post it into this ticket in the following format:

```
* [Ticket ref] Ticket title (your name)
  * Comment (A summary of the ticket, why you put this ticket here, what point should be discussed, etc.)
```

Example:

```
* [Feature #14609] `Kernel#p` without args shows the receiver (ko1)
  * I feel this feature is very useful and some people say :+1: so let discuss this feature.
```

- It is recommended to add a comment by 2021/02/13. We hold a preparatory meeting to create an agenda a few days before the dev-meeting.
- The format is strict.  We'll use [this script to automatically create an markdown-style agenda](https://gist.github.com/mame/b0390509ce1491b43610b9ebb665eb86).  We may ignore a comment that does not follow the format.
- Your comment is mandatory. We cannot read all discussion of the ticket in a limited time. We appreciate it if you could write a short summary and update from a previous discussion.




-- 
https://bugs.ruby-lang.org/

[ruby-core:102302] [Ruby master Misc#17535] DevelopersMeeting20210216Japan

[eregontp]

Issue #17535 has been updated by Eregon (Benoit Daloze).


* [Bug #17591] Test frameworks and REPLs do not show deprecation warnings by default (eregon)
  * I think ruby-core needs to have a clear message on this, and create PRs or issues for the main test frameworks/REPLs to show examples.

----------------------------------------
Misc #17535: DevelopersMeeting20210216Japan
https://bugs.ruby-lang.org/issues/17535#change-90160

* Author: mame (Yusuke Endoh)
* Status: Open
* Priority: Normal
----------------------------------------
# The next dev meeting

**Date: 2021/02/16 13:00-17:00**
Place/Sign-up/Agenda/Log: *TBD*

- Dev meeting *IS NOT* a decision-making place. All decisions should be done at the bug tracker.
- Dev meeting is a place we can ask Matz, nobu, nurse and other developers directly.
- Matz is a very busy person. Take this opportunity to ask him. If you can not attend, other attendees can ask instead of you (if attendees can understand your issue).
- We will write a log about the discussion to a file or to each ticket in English.
- All activities are best-effort (keep in mind that most of us are volunteer developers).
- The date, time and place are scheduled according to when/where we can reserve Matz's time.
- *DO NOT* discuss then on this ticket, please.

# Call for agenda items

If you have a ticket that you want matz and committers to discuss, please post it into this ticket in the following format:

```
* [Ticket ref] Ticket title (your name)
  * Comment (A summary of the ticket, why you put this ticket here, what point should be discussed, etc.)
```

Example:

```
* [Feature #14609] `Kernel#p` without args shows the receiver (ko1)
  * I feel this feature is very useful and some people say :+1: so let discuss this feature.
```

- It is recommended to add a comment by 2021/02/13. We hold a preparatory meeting to create an agenda a few days before the dev-meeting.
- The format is strict.  We'll use [this script to automatically create an markdown-style agenda](https://gist.github.com/mame/b0390509ce1491b43610b9ebb665eb86).  We may ignore a comment that does not follow the format.
- Your comment is mandatory. We cannot read all discussion of the ticket in a limited time. We appreciate it if you could write a short summary and update from a previous discussion.




-- 
https://bugs.ruby-lang.org/

[ruby-core:102309] [Ruby master Misc#17535] DevelopersMeeting20210216Japan

[marcandre-ruby-core]

Issue #17535 has been updated by marcandre (Marc-Andre Lafortune).


* [Bug #17592] Allow reading class instance varaibles from non-main Ractor (marcandre)
  * We need way to have global config that is mutated very little. `TVar` may be a solution; reading class instance variables would be simpler, backwards compatible.


----------------------------------------
Misc #17535: DevelopersMeeting20210216Japan
https://bugs.ruby-lang.org/issues/17535#change-90166

* Author: mame (Yusuke Endoh)
* Status: Open
* Priority: Normal
----------------------------------------
# The next dev meeting

**Date: 2021/02/16 13:00-17:00**
Place/Sign-up/Agenda/Log: *TBD*

- Dev meeting *IS NOT* a decision-making place. All decisions should be done at the bug tracker.
- Dev meeting is a place we can ask Matz, nobu, nurse and other developers directly.
- Matz is a very busy person. Take this opportunity to ask him. If you can not attend, other attendees can ask instead of you (if attendees can understand your issue).
- We will write a log about the discussion to a file or to each ticket in English.
- All activities are best-effort (keep in mind that most of us are volunteer developers).
- The date, time and place are scheduled according to when/where we can reserve Matz's time.
- *DO NOT* discuss then on this ticket, please.

# Call for agenda items

If you have a ticket that you want matz and committers to discuss, please post it into this ticket in the following format:

```
* [Ticket ref] Ticket title (your name)
  * Comment (A summary of the ticket, why you put this ticket here, what point should be discussed, etc.)
```

Example:

```
* [Feature #14609] `Kernel#p` without args shows the receiver (ko1)
  * I feel this feature is very useful and some people say :+1: so let discuss this feature.
```

- It is recommended to add a comment by 2021/02/13. We hold a preparatory meeting to create an agenda a few days before the dev-meeting.
- The format is strict.  We'll use [this script to automatically create an markdown-style agenda](https://gist.github.com/mame/b0390509ce1491b43610b9ebb665eb86).  We may ignore a comment that does not follow the format.
- Your comment is mandatory. We cannot read all discussion of the ticket in a limited time. We appreciate it if you could write a short summary and update from a previous discussion.




-- 
https://bugs.ruby-lang.org/

[ruby-core:102326] [Ruby master Misc#17535] DevelopersMeeting20210216Japan

[jean.boussier]

Issue #17535 has been updated by byroot (Jean Boussier).


- [Feature #15752] `load_iseq_eval` should override the ISeq path (byroot)
  - When loading a ISeq returned by `load_iseq(fname)` `fname` should be used as top stack location.
  - Right now the location of the source file (compiled with `compile_file`) is used.
  - Because of it moving a source file invalidate its iseq cache.
  - This makes ISeq caching impossible on some platforms like Heroku.
  - `__FILE__` would need to be changed to be a method like `__dir__`


----------------------------------------
Misc #17535: DevelopersMeeting20210216Japan
https://bugs.ruby-lang.org/issues/17535#change-90184

* Author: mame (Yusuke Endoh)
* Status: Open
* Priority: Normal
----------------------------------------
# The next dev meeting

**Date: 2021/02/16 13:00-17:00**
Place/Sign-up/Agenda/Log: *TBD*

- Dev meeting *IS NOT* a decision-making place. All decisions should be done at the bug tracker.
- Dev meeting is a place we can ask Matz, nobu, nurse and other developers directly.
- Matz is a very busy person. Take this opportunity to ask him. If you can not attend, other attendees can ask instead of you (if attendees can understand your issue).
- We will write a log about the discussion to a file or to each ticket in English.
- All activities are best-effort (keep in mind that most of us are volunteer developers).
- The date, time and place are scheduled according to when/where we can reserve Matz's time.
- *DO NOT* discuss then on this ticket, please.

# Call for agenda items

If you have a ticket that you want matz and committers to discuss, please post it into this ticket in the following format:

```
* [Ticket ref] Ticket title (your name)
  * Comment (A summary of the ticket, why you put this ticket here, what point should be discussed, etc.)
```

Example:

```
* [Feature #14609] `Kernel#p` without args shows the receiver (ko1)
  * I feel this feature is very useful and some people say :+1: so let discuss this feature.
```

- It is recommended to add a comment by 2021/02/13. We hold a preparatory meeting to create an agenda a few days before the dev-meeting.
- The format is strict.  We'll use [this script to automatically create an markdown-style agenda](https://gist.github.com/mame/b0390509ce1491b43610b9ebb665eb86).  We may ignore a comment that does not follow the format.
- Your comment is mandatory. We cannot read all discussion of the ticket in a limited time. We appreciate it if you could write a short summary and update from a previous discussion.




-- 
https://bugs.ruby-lang.org/

[ruby-core:102406] [Ruby master Misc#17535] DevelopersMeeting20210216Japan

[sawadatsuyoshi]

Issue #17535 has been updated by sawa (Tsuyoshi Sawada).


* Feature #17608] Compact and sum in one step (sawa)
    * Let `Array#sum` ignore `nil` values, or introduce a method that does that.
    * The reason for adding this in the agenda is because it has been closed before being discussed.

----------------------------------------
Misc #17535: DevelopersMeeting20210216Japan
https://bugs.ruby-lang.org/issues/17535#change-90279

* Author: mame (Yusuke Endoh)
* Status: Open
* Priority: Normal
----------------------------------------
# The next dev meeting

**Date: 2021/02/16 13:00-17:00**
Place/Sign-up/Agenda/Log: *TBD*

- Dev meeting *IS NOT* a decision-making place. All decisions should be done at the bug tracker.
- Dev meeting is a place we can ask Matz, nobu, nurse and other developers directly.
- Matz is a very busy person. Take this opportunity to ask him. If you can not attend, other attendees can ask instead of you (if attendees can understand your issue).
- We will write a log about the discussion to a file or to each ticket in English.
- All activities are best-effort (keep in mind that most of us are volunteer developers).
- The date, time and place are scheduled according to when/where we can reserve Matz's time.
- *DO NOT* discuss then on this ticket, please.

# Call for agenda items

If you have a ticket that you want matz and committers to discuss, please post it into this ticket in the following format:

```
* [Ticket ref] Ticket title (your name)
  * Comment (A summary of the ticket, why you put this ticket here, what point should be discussed, etc.)
```

Example:

```
* [Feature #14609] `Kernel#p` without args shows the receiver (ko1)
  * I feel this feature is very useful and some people say :+1: so let discuss this feature.
```

- It is recommended to add a comment by 2021/02/13. We hold a preparatory meeting to create an agenda a few days before the dev-meeting.
- The format is strict.  We'll use [this script to automatically create an markdown-style agenda](https://gist.github.com/mame/b0390509ce1491b43610b9ebb665eb86).  We may ignore a comment that does not follow the format.
- Your comment is mandatory. We cannot read all discussion of the ticket in a limited time. We appreciate it if you could write a short summary and update from a previous discussion.




-- 
https://bugs.ruby-lang.org/

[ruby-core:102460] [Ruby master Misc#17535] DevelopersMeeting20210216Japan

[daniel]

Issue #17535 has been updated by Dan0042 (Daniel DeLorme).


* [Bug #17594] Sort order of UTF-16LE is based on binary representation instead of codepoints (dan0042)
  * 'a' < 'ā' is true for UTF-16BE and false for UTF-16LE; imho it would be better to have the same result.
  * casecmp compares codepoints when ascii, bytes otherwise

----------------------------------------
Misc #17535: DevelopersMeeting20210216Japan
https://bugs.ruby-lang.org/issues/17535#change-90348

* Author: mame (Yusuke Endoh)
* Status: Open
* Priority: Normal
----------------------------------------
# The next dev meeting

**Date: 2021/02/16 13:00-17:00**
Place/Sign-up/Agenda/Log: *TBD*

- Dev meeting *IS NOT* a decision-making place. All decisions should be done at the bug tracker.
- Dev meeting is a place we can ask Matz, nobu, nurse and other developers directly.
- Matz is a very busy person. Take this opportunity to ask him. If you can not attend, other attendees can ask instead of you (if attendees can understand your issue).
- We will write a log about the discussion to a file or to each ticket in English.
- All activities are best-effort (keep in mind that most of us are volunteer developers).
- The date, time and place are scheduled according to when/where we can reserve Matz's time.
- *DO NOT* discuss then on this ticket, please.

# Call for agenda items

If you have a ticket that you want matz and committers to discuss, please post it into this ticket in the following format:

```
* [Ticket ref] Ticket title (your name)
  * Comment (A summary of the ticket, why you put this ticket here, what point should be discussed, etc.)
```

Example:

```
* [Feature #14609] `Kernel#p` without args shows the receiver (ko1)
  * I feel this feature is very useful and some people say :+1: so let discuss this feature.
```

- It is recommended to add a comment by 2021/02/13. We hold a preparatory meeting to create an agenda a few days before the dev-meeting.
- The format is strict.  We'll use [this script to automatically create an markdown-style agenda](https://gist.github.com/mame/b0390509ce1491b43610b9ebb665eb86).  We may ignore a comment that does not follow the format.
- Your comment is mandatory. We cannot read all discussion of the ticket in a limited time. We appreciate it if you could write a short summary and update from a previous discussion.




-- 
https://bugs.ruby-lang.org/