Function preParsedSource

src/extraction/kernel/index.ts:138–141

* The preParse hoist (checklist §arch-1): languages with an offset-preserving * `preParse` hook (c/cpp macro blanking, csharp #237, metal #1121, cuda #1172) * apply it HERE, before the kernel call, so both arms parse identical blanked * bytes and none of the blanking logic needs a Rust port. The

(filePath: string, source: string, language: Language)

 * blanks (`.metal` attributes; `.cu`/`.cuh` + content-gated CUDA).
 */
function preParsedSource(filePath: string, source: string, language: Language): string {
  const pre = EXTRACTORS[language]?.preParse;
  return pre ? pre(source, filePath) : source;
}

function isRouted(language: Language): boolean {
  const env = process.env.CODEGRAPH_KERNEL_LANGS;