Transformer should not rely on mutated object about remark HOT 4 CLOSED

Well, yes. That would break every plugin out there :) In addition, though I like the concept of immutability, this is how ware (which is used internally), koa, and express also use.

Also, it is impossible with the current set-up, through the previously mentioned ware, to add this, because it doesn’t support return values (P.S. transformers can be async)

In addition, often, plug-ins only make small changes. Adding a few attributes, &c. Wouldn’t it be very expensive in performance to have to clone the AST each time?

from remark.

Okay fine I see where you're coming from :)

Maybe just a doc update that clearly explains that's what is happening would suffice. The main point is predictability, so if its clear that shouldn't be a problem IMHO.

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Tsk, a comma separated close doesn’t work 😦...

Anyway, I think that 8664a03 closes this because it clearly shows that no AST is returned. Do you agree? If not, please re-open and let me know where you’d like this notice!

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Looks good! Thanks!

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