commit 64217b43c24f81da1cf0073edae517403af17227
author Michael Forster <forster@google.com> Fri Apr 22 05:48:54 2022 -0700
committer Copybara-Service <copybara-worker@google.com> Fri Apr 22 05:49:27 2022 -0700
tree 8e3cd7896245d2a4bba85197a994f93ccab30f00
parent 620bc91896ca2a1af633c0f9fbf08e41455d821a

Split `Importer` into individual classes for each decl type.

This is one step towards a more query-based importer architecture, by
encapsulating the individual import methods and extracting an interface for
their interaction with the importer.

The extracted interfaces of the `DeclImporter` and `ImportContext` are not meant
to be permanent. They merely extract the status quo and provide a basis for
future improvements.

I also plan on moving individual `DeclImporter`s into their own files. Maybe
also the `Invocation` and the `ImportContext`. I haven't done that in this CL to
make review easier.

PiperOrigin-RevId: 443642590