tree 9b4947dbca5ef0f85d44867f6741f59d26a8001e
parent d2c7f607148a94f9a776bcbc6bb94a9e184b6fc9
author Adam Cozzette <acozzette@google.com> 1724257578 -0700
committer Copybara-Service <copybara-worker@google.com> 1724258065 -0700

Replace some per-message C++ thunks with a common implementation

This change adds delete, clear, serialize, parse, copy_from, and merge_from
operations to the runtime. Since these operations can all be implemented easily
on the `MessageLite` interface, we can use a common implementation in the
runtime instead of generating per-message thunks for all of these.

I suspect this will also make it possible to remove some of our generated trait
implementations and replace them with blanket implementations, but I will leave
that for a future change.

PiperOrigin-RevId: 665910927