Function loadShim

build.mjs:628–631

(filter, filename)

  await fs.mkdir(OUT_DIR, { recursive: true });
  await rmTmpDir();
  await fs.mkdir(TMP_DIR, { recursive: true });
}

async function loadShims() {
  const loadShim = async (filter, filename) => {
    const bytes = await fs.readFile(path.join("shims", filename));
    SHIMS.set(filter, bytes.toString());