feat: Update for Ruby 4.0

[dazuma]

No description provided.

[Copilot]

Pull request overview

This pull request aims to update the ractor-wrapper gem for Ruby 4.0, introducing significant API changes and new features. However, Ruby 4.0 does not exist yet (the latest stable version is Ruby 3.3.x as of January 2025), which makes this update premature and will prevent the gem from being used in any current Ruby version.

Key changes include:

• Updating Ruby version requirement from 3.0 to 4.0 (nonexistent version)
• Adding frozen_string_literal: true pragmas to all Ruby files
• Renaming methods (threads → thread_count, logging → logging_enabled, recovered_object → recover_object, move_return → move_result)
• Adding new block execution features with execute_block_in_ractor option
• Introducing new Ruby 4.0 APIs like Ractor::Port, Ractor.shareable_proc, and Ractor#value
• Updating test infrastructure and dependencies

Reviewed changes

Copilot reviewed 14 out of 15 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
ractor-wrapper.gemspec	Updated Ruby version requirement to 4.0 (critical: version doesn't exist), improved description
lib/ractor/wrapper/version.rb	Added frozen_string_literal pragma, removed redundant .freeze on VERSION
lib/ractor/wrapper.rb	Major refactoring with API renames, new block execution features, bug fix in cleanup_phase needed (line 685-686), spelling error on line 576
lib/ractor-wrapper.rb	Added frozen_string_literal pragma
test/test_wrapper.rb	Added frozen_string_literal pragma, updated tests for new API, added block execution tests
test/test_example.rb	New test file for README and SQLite3 examples
test/helper.rb	Added frozen_string_literal pragma, renamed fail → whoops, added helper methods
test/data/numbers.db	New SQLite database file for tests
README.md	Updated documentation for Ruby 4.0 APIs and new features, future copyright year (2026)
LICENSE.md	Updated copyright year to 2021-2026 (includes future year)
Gemfile	Updated dependencies to possibly nonexistent versions (minitest 6.0, potentially faraday 2.14, sqlite3 2.9)
.toys/ci.rb	New CI tool configuration
.toys/.toys.rb	Removed inline CI tool definition, added frozen_string_literal pragma
.rubocop.yml	Extensive rubocop configuration updates targeting Ruby 4.0
.github/workflows/ci.yml	Updated CI workflow to use Ruby 4.0 (will fail)

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