Why do we pass oldDocument to "adopting steps" (instead of the new document)?

[rakina]

The adopt actually has node and document as its parameters - where document is the new document that we intend to adopt node into. We get oldDocument in that algorithm from node. However, the adopting steps is passed node and oldDocument - I wonder if we meant document instead of oldDocument here? Otherwise, I'm not sure how we can get the new document from within adopting steps.

Noticed this while looking into an issue with constructed stylesheets.

[annevk]

By the time step 3.3 of adopt runs (that invokes adopting steps) the node's node document is the new document, right? I.e., you can obtain that from node.

[rakina]

Oh you're right! Should've read it more thoroughly. Thank you :)