Highlighting for .staal files, and from staalc lsp: errors as you type,
completion and formatting. The errors are the ones staalc check prints, from the
same code, so the editor and the compiler never disagree.
The extension is not on the Marketplace. To install it from this folder:
npm ci
npx @vscode/vsce package --allow-missing-repository --skip-license -o staal.vsix
code --install-extension staal.vsix
It runs staalc lsp, finding staalc on your PATH; set staal.server.path to use
another executable. If it cannot start the server it says so.
npm test runs the grammar with VS Code’s own tokenizer over a sample and over every
Staal file in the repository, drives staalc lsp with VS Code’s protocol library
(build staalc first, or set STAALC to it), and checks how the extension starts,
restarts and stops its server. cargo test --test editor_test keeps the grammar’s
reserved words and built-ins identical to the compiler’s.
Not yet tested here: running inside VS Code itself, which needs a VS Code download.