fix(subscriber): make Layered propagate on_register_dispatch #3379
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It seems like this was overlooked in #2269 |
This was referenced Sep 29, 2025
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hds
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Nov 20, 2025
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Thanks for your PR! I've got a couple of comments.
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| impl Subscriber for TestLayer { |
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What do you think about extending the MockSubscriebr and MockLayer in tracing-mock to allow expecting on_register_dispatch?
| S: Subscriber, | ||
| { | ||
| fn on_register_dispatch(&self, subscriber: &Dispatch) { | ||
| self.layer.on_register_dispatch(subscriber); |
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I think we probably want to switch the order here, so that the actual subscriber gets the chance to register first.
hds
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Motivation
The
Layeredimplementation ofSubscriberdoes not implement and propagate theon_register_dispatchcallback. This means that combined layers will never have theiron_register_dispatchmethods called.Solution
Implement the missing
on_register_dispatchmethod.