tree-sitter-moonbit

A tree-sitter grammar for MoonBit.

This repo contains grammars for MoonBit source/interface files, moon.pkg package configuration files, and MoonBit predicate files (.mbtp).

Development notes

• Primary source files: grammar.js, queries/*.scm, and test/corpus/*.
• Generated files: src/grammar.json, src/node-types.json, src/parser.c, and grammars/{mbtp,quotation}/src/{grammar.json,node-types.json,parser.c} are produced by scripts/generate.py (see .github/workflows/test.yml).
• Avoid editing generated files by hand. Only regenerate when you intend to update parser artifacts, and expect large diffs.

Subgrammars

• grammar.js: main MoonBit grammar for .mbt, .mbti, and moon.pkg.
• grammars/mbtp/grammar.js: MoonBit predicate grammar for .mbtp.
• grammars/quotation/grammar.js: quoted MoonBit grammar.

Downstream repos (core/async)

For development and validating grammar changes, you'll typically want local checkouts of:

• moonbitlang/core
• moonbitlang/async

CI clones these repos and parses **/*.mbt and **/*.mbti (see .github/workflows/test.yml). If you hit cache lock permission errors locally, set XDG_CACHE_HOME (e.g. XDG_CACHE_HOME=/tmp/xdg-cache).