Function preloadQuickJs

apps/cloud/src/quickjs.ts:35–66

()

const tracer = trace.getTracer("executor-cloud-quickjs");

export const preloadQuickJs = (): Promise<void> => {
  if (!preloaded) {
    // oxlint-disable-next-line executor/no-promise-catch -- boundary: this module has no Effect context; reset the memoized promise on failure so a retried artifact render can trigger a fresh instantiation instead of caching a permanent rejection
    preloaded = tracer
      .startActiveSpan("quickjs.preload", async (span) => {
        // oxlint-disable-next-line executor/no-try-catch-or-throw -- boundary: promise-native WASM instantiation; recording exception detail on the span before rethrowing
        try {
          const variant = newVariant(baseVariant, { wasmModule });
          const mod = await newQuickJSWASMModuleFromVariant(variant);
          setQuickJSModule(mod);
        } catch (err) {
          // oxlint-disable-next-line executor/no-instanceof-error, executor/no-unknown-error-message -- boundary: normalizing an untyped instantiation failure only for the OTel span record; the original error is rethrown below unchanged
          const cause = err instanceof Error ? err : String(err);
          span.recordException(cause);
          // oxlint-disable-next-line executor/no-unknown-error-message -- boundary: same normalization as the recordException line above
          const message = typeof cause === "string" ? cause : cause.message;
          span.setStatus({ code: SpanStatusCode.ERROR, message });
          // oxlint-disable-next-line executor/no-try-catch-or-throw -- boundary: rethrow after recording so the caller (and the memoization reset below) still observes the failure
          throw err;
        } finally {
          span.end();
        }
      })
      // oxlint-disable-next-line executor/no-promise-catch -- boundary: this module has no Effect context; reset the memoized promise on failure so a retried artifact render can trigger a fresh instantiation instead of caching a permanent rejection
      .catch((err: unknown) => {
        preloaded = null;
        // oxlint-disable-next-line executor/no-try-catch-or-throw -- boundary: rethrow so the caller's awaited promise still rejects with the original error
        throw err;
      });
  }
  return preloaded;
};