ruvnet/ruflo · error

[WASM Loader] cook_batch failed, using fallback:

Error message

[WASM Loader] cook_batch failed, using fallback:

What it means

Log warning in cookBatch: the WASM cook_batch call for the whole formula array threw; the batch is processed with the JavaScript fallback implementation.

Source

Thrown at v3/plugins/gastown-bridge/src/wasm-loader.ts:909

  const startTime = performance.now();

  if (formulas.length !== varsArray.length) {
    throw new Error('formulas and varsArray must have the same length');
  }

  const wasmModule = await loadFormulaWasm();

  if (wasmModule) {
    try {
      const resultJson = wasmModule.cook_batch(
        JSON.stringify(formulas),
        JSON.stringify(varsArray)
      );
      const result = JSON.parse(resultJson) as Formula[];
      recordTiming('cookBatch', startTime, true);
      return result;
    } catch (error) {
      console.warn('[WASM Loader] cook_batch failed, using fallback:', error);
    }
  }

  // JavaScript fallback
  const results = await Promise.all(
    formulas.map((formula, i) => cookFormula(formula, varsArray[i]))
  );
  recordTiming('cookBatch', startTime, false);
  return results;
}

// ============================================================================
// Public API - Graph Operations
// ============================================================================

/**
 * Perform topological sort on a dependency graph.
 * Uses WASM if available (150x faster), falls back to JavaScript.

View on GitHub (pinned to fa13ee4ad6)

Solutions

1. Check the batch input and the WASM cook_batch error; the JS fallback is used — verify the batch entries are valid.

When it happens

Trigger: Thrown at v3/plugins/gastown-bridge/src/wasm-loader.ts:909 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of ruvnet/ruflo@fa13ee4ad6 (2026-08-18). Data as JSON: /api/errors/cafe63e6816e53fa. Report an issue: GitHub.