[ruby-core:114484] [Ruby master Misc#19772] API naming for YARP compiler

Issue #19772 has been updated by mame (Yusuke Endoh).


We discussed How to merge YARP to Ruby 3.3 at the dev meeting. Here is what @matz approved:

* MRI will use parse.y by default. Using an option (not concretely decided yet), it will use the built-in YARP.
* We introduce `::Ruby` module.
  * This namespace is owned and predefined by the Ruby interpreter.
  * Any gem must not define any constants under the namespace.
* Built-in YARP can use used from Ruby in `Ruby::Parser`.
  * `Ruby::Parser` is not loaded by default. `require 'ruby/parser'` will define `Ruby::Parser`.
  * `lib/ruby/parser.rb`, etc. will be part of the standard library (it will not be part of default/bundled gems).
* `Ruby::Parser` should not be defined/modified by any gem (= gem cannot replace `Ruby::Parser`).
  * yarp/prism gem will use a different namespace than `Ruby::Parser`.
* We haven't decided whether to bundle the yarp/prism gem.
  * The name of the gem can be either yarp or prism.
  * yarp's implementation for multi-version support is up to yarp maintainers.

(Anyone who was at the meeting, please point out if I'm wrong)

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Misc #19772: API naming for YARP compiler
https://bugs.ruby-lang.org/issues/19772#change-104270

* Author: jemmai (Jemma Issroff)
* Status: Open
* Priority: Normal
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We are working on the YARP compiler, and have [the first PR ready](https://github.com/ruby/ruby/pull/8042) which introduces the YARP compile method. Our only outstanding question before merging it is about naming. How should we expose the public API for YARP's compile method?

Potential suggestions:

1. YARP.compile
2. RubyVM::InstructionSequence.compile(yarp: true)
3. RubyVM::InstructionSequence.compile_yarp
4. Any of the above options, with a name other than yarp (please suggest an alternative)

Regarding option 1, which would mirror `YARP.parse`, is the top level constant `YARP` acceptable?

cc @matz @ko1 



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