logging-library

Feature Request

Crates

tracing_attributes

Motivation

Sometimes it's useful to be able to set the parent span when using this macro. One use case would be for structs which have their own span and want to instrument their methods.

Proposal

Add a new argument to tracing_attributes::instrument to allow explicitly setting the parent span, instead of inheriting from

Suggested on Telegram.

It may be easier to understand the examples if they don't show both distage and BIO at the same time, so we may want to have a variant of distage-example that uses just distage alone, using a monomorphic effect type everywhere.

You can't write this:

writer.tag = -, sometag

because - is not actually a way to simply express the empty tag, but a whole 'command' by itself. I'd like to have such a thing so I can use tags as a way to enable or disable extra detail in logging. It seems like an obvious use case but there's no way to express it because you can't write "no tag + this list of extra tags I need for