CL++ support for Cluaupp

CL++ support for Cluaupp

Cluaupp connects the language to Roblox (Rojo, engine API, project init). CL++ is language-only. This contract lets Cluaupp swap the compile backend without rewriting the transpiler.

Current compiler: 0.7.0. Full CLI upgrade guide: Cluaupp 0.7.0 and Update Cluaupp (pin 0.7.0).

CLI

clpp api compile --file src/server/Leaderstats.server.clpp
echo '{"source":"void init() { post(\"ok\"); }","fileName":"init.server.clpp"}' | clpp api compile
clpp api manifest
clpp compile file.clpp --json
clpp build src -o out --json

Compile output (JSON):

{
  "ok": true,
  "luau": "-- Compiled by CL++ …",
  "fileName": "init.server.clpp",
  "outputHint": "init.server.luau",
  "scriptKind": "server",
  "isScript": true,
  "isHeader": false,
  "rojoClass": "Script",
  "libraries": []
}

TypeScript types live in the repository at support/cluaupp.d.ts (GitHub).

Node (Cluaupp)

const { spawnSync } = require("child_process");

function compileSource(source, fileName, options = {}) {
  const r = spawnSync("clpp", ["api", "compile"], {
    input: JSON.stringify({ source, fileName, strict: options.strict ?? null }),
    encoding: "utf8",
  });
  const artifact = JSON.parse(r.stdout);
  if (!artifact.ok) {
    throw new Error(artifact.error || "clpp compile failed");
  }
  return artifact; // { luau, rojoClass, scriptKind, … }
}

Rust

use clpp::{compile_request, CompileRequest};

let art = compile_request(&CompileRequest {
    source: src.into(),
    file_name: "boot.server.clpp".into(),
    strict: Some(true),
})?;
let luau = art.luau;

rojoClass is ready for Rojo (Script / LocalScript / ModuleScript).

Source Cluaupp generates

Anonymous callbacks in .clpp / .clp must be func (params) { }. func [](…) and []() { } are a compile error. Full handoff: Cluaupp — anonymous callbacks.