Contribute

Help make the language concrete.

Dewy has a wide design horizon and a rapidly evolving compiler. Useful contributions start by separating implemented behavior from proposals and preserving semantic contracts.

Set up the repository

git clone https://github.com/david-andrew/dewy-lang.git
cd dewy-lang
python -m venv .venv
.venv/bin/pip install pytest ruff mypy pyright
.venv/bin/pytest -q

Python 3.12 or newer is required. Native backend tests may also need GNU assembler/linker, C tooling, WABT, or cross-compilers.

Repository map

dewy/parser/Staged lexer and precedence parser
dewy/semantic/Types, HIR, modules, initialization, and bounds analysis
dewy/backend/udewy/Legalization, representation decisions, and µDewy emission
udewy/Reference and self-hosted bootstrap compilers plus target backends
site/Website, learning guide, language reference, and playground

Good starting areas

Correct stale documentation and label aspirational examples clearly.
Add focused tests for an existing semantic contract or backend parity case.
Improve diagnostics without changing accepted syntax.
Reduce duplication between µDewy’s Python and bootstrap backends.
Improve website accessibility, examples, and cross-linking.

For language-design changes, open a focused issue before implementation so syntax, semantic behavior, and lowering constraints can be considered together.

View issues Open repository