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base repository: rescript-lang/rescript
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head repository: rescript-lang/rescript
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compare: maintenance/12.x
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  • 18 commits
  • 83 files changed
  • 5 contributors

Commits on Jan 27, 2026

  1. Set version to 12.2.0-rc.1

    @cknitt
    cknitt committed Jan 27, 2026
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  2. reanalyze: fix reactive invalidation on refs-only changes 

    When transitive mode is off, dead-value reporting depends on hasRefBelow, which depends on value_refs_from (cross-file refs).

Fix ReactiveSolver so per-file issues are recomputed when value_refs_from changes, not only when dead_decls_by_file changes. This prevents stale warnings in long-lived reanalyze-server sessions.

Also add -transitive/-no-transitive CLI overrides (overriding rescript.json) and document/regenerate the checked-in non-transitive reactive pipeline mermaid diagram.

Signed-off-by: Cristiano Calcagno <cristianoc@users.noreply.github.com>
    @cristianoc @cknitt
    cristianoc authored and cknitt committed Jan 27, 2026
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  3. Add duplicate package detection to rewatch (#8180) 

    * Add duplicate package detection to rewatch

* Add changelog

* Warn to stderr

* Set runtime env var

* fmt
    @nojaf @cknitt
    nojaf authored and cknitt committed Jan 27, 2026
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  4. Rewatch: do not warn about "reanalyze" config field (#8181)

    @cknitt
    cknitt committed Jan 27, 2026
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  5. Improve js-post-build (#8190) 

    * Use correct js path

* Print stdout/stderr of js-post-build

* Add changelog

* Update documentation

* Mention the working dir as well
# Conflicts:
#	CHANGELOG.md
#	docs/docson/build-schema.json
#	rewatch/CompilerConfigurationSpec.md
#	tests/build_tests/post-build/input.js
    @nojaf @cknitt
    nojaf authored and cknitt committed Jan 27, 2026
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  6. Use rescript.json dir as working dir for js-post-build (#8195) 

    * Use rescript.json working dir.

* Add changelog
    @nojaf @cknitt
    nojaf authored and cknitt committed Jan 27, 2026
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  7. reanalyze: add scoped @@live/@@dead annotations 

    Add support for @@live/@@dead to set a default liveness annotation for subsequent items in a module/file scope, inheriting into nested modules and allowing later overrides.

Add focused DCE fixtures covering override + scope boundaries and live-vs-dead liveness propagation.

Update reanalyze deadcode expected output.
    @cristianoc @cknitt
    cristianoc authored and cknitt committed Jan 27, 2026
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  8. reanalyze: restore toplevel ocaml.warning suppression 

    Fix CollectAnnotations so top-level [@@ocaml.warning("-32")] / [@@warning] continues to suppress dead-value warnings even with scoped @@live/@@dead support.

Add regression fixture and update expected deadcode output.
    @cristianoc @cknitt
    cristianoc authored and cknitt committed Jan 27, 2026
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  9. Override module type for CommonJS runtime (#8194) 

    * Explicitly add type commonjs for commonjs runtime

* Update artifacts.json

* Remove es6 package.json because it's already the default

* Update CHANGELOG

* WIP: Add tests

* commit yarn.lock

* Update CHANGELOG.md

Co-authored-by: Christoph Knittel <christoph@knittel.cc>

---------

Co-authored-by: Christoph Knittel <christoph@knittel.cc>
# Conflicts:
#	biome.json
    @shulhi @cknitt
    shulhi and cknitt committed Jan 27, 2026
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  10. Fix CI trying to publish rescript-commonjs-tests (#8222)

    @cknitt
    cknitt committed Jan 27, 2026
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  11. Only save formatted files if they changed (#8209) 

    * Only save formatted files if they changed

* Add changelog
    @nojaf @cknitt
    nojaf authored and cknitt committed Jan 27, 2026
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  12. Move generating AST log to when a module is actually being parsed. (#… 

    …8210)

* Move generating AST log to when a module is actually being parsed.

* Add changelog
    @nojaf @cknitt
    nojaf authored and cknitt committed Jan 27, 2026
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  13. Fix warning loss during incremental builds in watch mode (#8216) 

    * Fix warning loss during incremental builds in watch mode

* Add changelog

* Update lock file

* Remove sleep

* Update existing snapshots with added warning

* Rename field
# Conflicts:
#	CHANGELOG.md
#	rewatch/tests/02-watch-warnings-persist.sh
#	rewatch/tests/snapshots/bs-dev-dependency-used-by-non-dev-source.txt
#	rewatch/tests/snapshots/clean-rebuild.txt
#	rewatch/tests/snapshots/dependency-cycle.txt
#	rewatch/tests/snapshots/remove-file.txt
#	rewatch/tests/snapshots/rename-file-internal-dep-namespace.txt
#	rewatch/tests/snapshots/rename-file-internal-dep.txt
#	rewatch/tests/snapshots/rename-file-with-interface.txt
#	rewatch/tests/snapshots/rename-file.txt
#	rewatch/tests/snapshots/rename-interface-file.txt
#	rewatch/tests/suffix.sh
#	rewatch/tests/suite.sh
    @nojaf @cknitt
    nojaf authored and cknitt committed Jan 27, 2026
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  14. Reanalyze: link type re-export labels (#8217) 

    * Reanalyze: link type re-export labels

Track manifest type paths on label declarations so re-exported record/variant labels
can be linked to their manifest counterparts during type label dependency wiring.

Adds a regression test for `type y = x = {...}` field liveness.

Signed-off-by: Cristiano Calcagno <cristianoc@users.noreply.github.com>

* Changelog: mention reanalyze type re-export label linking

Signed-off-by: Cristiano Calcagno <cristianoc@users.noreply.github.com>

* Reanalyze: suppress dead warnings on re-exported labels

When a type is re-exported via `type y = x = {...}`, the re-exported record/variant
labels are restated but not independently actionable. Suppress dead-type warning
emission for those labels while keeping per-label liveness and linking intact.

Signed-off-by: Cristiano Calcagno <cristianoc@users.noreply.github.com>

* Reanalyze: link re-export manifests across modules

Track manifest type paths (not just local type ids) so `type y = M.x = ...` and
other cross-module type equations correctly link label/case liveness.

Extend deadcode tests to cover variants and cross-file record re-exports.

Signed-off-by: Cristiano Calcagno <cristianoc@users.noreply.github.com>

---------

Signed-off-by: Cristiano Calcagno <cristianoc@users.noreply.github.com>
# Conflicts:
#	tests/analysis_tests/tests-reanalyze/deadcode/expected/deadcode.txt
    @cristianoc @cknitt
    cristianoc authored and cknitt committed Jan 27, 2026
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  15. Run CI for maintenance branches

    @cknitt
    cknitt committed Jan 27, 2026
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  16. Watch folders based on BuildState (#8219) 

    * Watch folders based on BuildState

* Add additional test cases

* Code review feedback

* Make test cross plat (I hope)

* Avoids sleeps in test

* Log error when source folder does not exist.

* Add changelog entry

* Code review feedback

* Avoid race condition (I hope)

* Trigger CI
# Conflicts:
#	AGENTS.md
#	CHANGELOG.md
#	rewatch/tests/03-watch-new-file.sh
#	rewatch/tests/04-watch-config-change.sh
#	rewatch/tests/05-watch-ignores-non-source.sh
#	rewatch/tests/06-watch-missing-source-folder.sh
#	rewatch/tests/suite.sh
#	rewatch/tests/watch/02-watch-warnings-persist.sh
    @nojaf @cknitt
    nojaf authored and cknitt committed Jan 27, 2026
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  17. Prepare for 12.2.0-rc.1 release

    @cknitt
    cknitt committed Jan 27, 2026
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  18. Merge pull request #8232 from rescript-lang/version-12.2.0-rc.1 

    Version 12.2.0-rc.1
    @cknitt
    cknitt authored Jan 27, 2026
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