Baa for VS Code

Language support for Baa: a small, readable scripting language with a real lexer, parser, resolver, tree-walking interpreter, formatter and linter, and diagnostics that try to be useful.

What you get


Diagnostics as you type	Every error carries a stable `BAAnnn` code, a tight range, and usually a suggestion
Formatting	Deterministic: running it twice changes nothing the second time
Go to definition, find references, rename	Read from the resolver's symbol table, so a shadowed name resolves the way the interpreter resolves it
Hover and document outline	Top-level declarations, with their signatures
Syntax highlighting and snippets	Including inside string interpolations

None of that is implemented in this extension. It starts baa lsp and connects the editor to it, so what you see is the same analysis baa check runs — the editor cannot disagree with the command line about whether your program is valid.

Requirements

Baa itself, which is where the language server lives:

npm install -g baa-lang

That is all. Open a .baa file and the extension starts the server.

If baa is somewhere the extension cannot find, set baa.server.path to it — either the executable, or a .js entry point, which is run under the editor's own Node.

Settings

Setting	Default	What it does
`baa.server.path`	`""`	Path to `baa`. Empty means "find it on `PATH`".
`baa.trace.server`	`off`	`messages` or `verbose` logs the traffic to the Baa Language Server output channel.

BAA_SERVER_PATH does the same as the setting, for places with no settings UI: a container, a CI job, a remote host started by a script. The setting wins when both are set.

Not working?

Open View → Output and choose Baa Language Server. If that channel does not exist, the client never started, which means baa was not found — check baa --version in a terminal.

The two languages are not related: this extension is for Baa, not for any other product with a similar name.

Links

MIT licensed.

Baa