Add Cobrust language support#7977
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Cobrust is a Rust-implemented Python successor with static typing and AI-native translation pipeline. Compiles to native binaries via Cranelift / LLVM. - languages.yml: add Cobrust entry (type: programming, color: #b45309, extension: .cb, ace_mode: python, no language_id per CONTRIBUTING) - samples/Cobrust/: add 5 sample files (hello, fib, fizzbuzz, two_sum, valid_anagram — 4 of 5 are non-trivial algorithms) Grammar TextMate scope: source.cobrust — full grammar deferred to vendor submodule once cobrust-textmate-grammar repo is published (follow-up PR per linguist CONTRIBUTING §Add a grammar). Repo: https://github.com/Cobrust-lang/cobrust License: Apache-2.0 OR MIT dual
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Description
Add support for Cobrust (
.cbextension), an AI-first statically-typedlanguage with Python syntax + Rust ownership semantics. Compiles to native
binaries via Cranelift / LLVM.
Checklist
languages.ymlentry added (nolanguage_idper CONTRIBUTING — will be assigned byscript/update-ids)samples/Cobrust/populated with 5 programs (4 of 5 are non-trivial algorithms: fib, fizzbuzz, two_sum, valid_anagram)#b45309(warm amber/copper) — no collision with existing hexes in currentlanguages.yml.cbextension not currently claimed (nearest are.cblCOBOL and.cbxCryptoBox — distinct)source.cobrust, 314 LOC, dual Apache-2.0 OR MIT)Grammar submodule
The TextMate grammar lives in a dedicated repo so it can be added as a
vendor submodule via
script/add-grammar:I am happy to push the grammars.yml + submodule entry as an additional
commit on this PR once a maintainer indicates the languages.yml + samples
approach is OK; or run
script/add-grammarlocally and amend this PRin a single revision — whichever the maintainer prefers.
Usage scope (honest)
.cbfiles are concentrated in the project organisation:Cobrust-lang/cobrustmain repo: ~158.cbfiles acrossexamples/,examples/leetcode/(100-problem LC-100 stress corpus),tests/cb_fixtures/cobrust-lang.cobrustpublished 2026-05-22 onOpen VSX: https://open-vsx.org/extension/cobrust-lang/cobrust
External repo adoption is currently nascent (released 5 days ago).
Primary users are project authors and AI agents writing/translating
Cobrust source via the project's LLM-translation subsystem. Maintainers
are welcome to apply usage-gate policy as they see fit; this PR
provides the language definition + grammar so the option is available
when adoption grows.
Cross-references
CLAUDE.md§2.5 in the main repo