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How to determine if a component is allowed from an IHandlersFilter implementation

I am trying to write an implementation of Castle Windsor v3 IHandlersFilter that will filter out handlers that cannot be resolved. This is necessary to restore the old (pre-castle 3) behavior of ResolveAll ( How to restore the old CollectionResolver behavior to Castle 3? )

My question is: from the SelectHandlers method, in the best way (if any) to determine which of the input IHandlers are solvable? I experimented with the IHandler.CanResolve method, but it accepts parameters that are a bit more advanced than I usually do, so I'm not sure how to use the method correctly.

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You can check handler.CurrentState == HandlerState.Valid

However, remember that this is based on what Windsor can determine statically, so the answer may not always be 100% accurate (for example, some components may have dynamic dependencies, so they will appear as insoluble here, but you can successfully solve them upon attempt).

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Source: https://habr.com/ru/post/1386753/

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