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Examples of errors detected by the V3119 diagnostic

V3119. Calling a virtual (overridden) event may lead to unpredictable behavior. Consider implementing event accessors explicitly or use 'sealed' keyword.

osu!

V3119 Calling overridden event 'OnNewResult' may lead to unpredictable behavior. Consider implementing event accessors explicitly or use 'sealed' keyword. DrawableRuleset.cs 256


private void addHitObject(TObject hitObject)
{
  ....
  drawableObject.OnNewResult += (_, r) => OnNewResult?.Invoke(r);
  ....
}

public override event Action<JudgementResult> OnNewResult;

Similar errors can be found in some other places:

  • V3119 Calling an overridden event may lead to unpredictable behavior. Consider implementing event accessors explicitly or use 'sealed' keyword. DrawableRuleset.cs 257

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