3 ms·

That "detail of implementation" is what is used by user code, e.g., `myError.As(...)` uses reflection, implicitly.

• Thaxll 3y ago
  Then what? It has 0 performance impact, we're talking about error handling here, it's rare and not in hot path.
  • sidlls 3y ago
    It does not have 0 performance impact, it's not rare, and in applications that are in the hot path, error handling is also in the hot path.
    • Thaxll 3y ago
      No, it only executes when you enter the err != nil block so it's almost never called, again 0 impact on performance.