Function compileTypeScript

packages/node/src/build.ts:192–210

(path: string, source: string)

  let tsCompile: Register;
  function compileTypeScript(path: string, source: string): string {
    const relPath = relative(baseDir, path);
    if (!tsCompile) {
      tsCompile = register({
        basePath: workPath, // The base is the same as root now.json dir
        project: path, // Resolve tsconfig.json from entrypoint dir
        files: true, // Include all files such as global `.d.ts`
        nodeVersionMajor: nodeVersion.major,
      });
    }
    const { code, map } = tsCompile(source, path);
    tsCompiled.add(relPath);
    preparedFiles[renameTStoJS(relPath) + '.map'] = new FileBlob({
      data: JSON.stringify(map),
    });
    source = code;
    shouldAddSourcemapSupport = true;
    return source;
  }
  const isBun = isBunVersion(nodeVersion);

  const conditions = isEdgeFunction