Provide default implementation for IHubFilter.InvokeMethodAsync #23968
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halter73
approved these changes
Jul 16, 2020
halter73
reviewed
Jul 16, 2020
| /// <param name="next">The next filter to run, and for the final one, the Hub invocation.</param> | ||
| /// <returns>Returns the result of the Hub method invoke.</returns> | ||
| ValueTask<object> InvokeMethodAsync(HubInvocationContext invocationContext, Func<HubInvocationContext, ValueTask<object>> next); | ||
| ValueTask<object> InvokeMethodAsync(HubInvocationContext invocationContext, Func<HubInvocationContext, ValueTask<object>> next) => next(invocationContext); |
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It might be worth adding a simple test that verifies you don't have to implement InvokeMethodAsync.
JamesNK
reviewed
Jul 17, 2020
| /// <param name="next">The next filter to run, and for the final one, the Hub invocation.</param> | ||
| /// <returns>Returns the result of the Hub method invoke.</returns> | ||
| ValueTask<object> InvokeMethodAsync(HubInvocationContext invocationContext, Func<HubInvocationContext, ValueTask<object>> next); | ||
| ValueTask<object> InvokeMethodAsync(HubInvocationContext invocationContext, Func<HubInvocationContext, ValueTask<object>> next) => next(invocationContext); |
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Why are hub filters an interface with a default implementation rather than an abstract base class?
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We're rebels. I actually think it's a good experiment to try this on
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I'm not a fan of how people generally call base.FunctionName(); (and intellisense adds it automatically) with abstract base classes when the base class does nothing
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@halter73 mentioned we should probably add a default for this as well. It's not too hard to imagine filters being written that don't want to implement
InvokeMethodAsync.