tree 3d443f59f135e55ce92924cc4dd5d413c283ab68
parent 59534339215c5b3df46d178a6b1e57fef9e6a2d7
author Wyatt Hepler <hepler@google.com> 1606146587 -0800
committer CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com> 1606167838 +0000

pw_rpc: Check RPC method signature; improve errors

- Fix issue where an RPC method could be implemented with the signature
  of a different RPC type. Pass the expected method type when methods
  are created and check that it matches the type deduced from the method
  signature.
- Reduce code duplication to limit the number of places where
  compilation errors occur.
  - Combine variable RPC method traits classes into MethodTraits.
  - Move all Method creation functionality into the method classes.
  - Put the final method invocation logic into one function that
    supports member functions or static functions.
- Consolidate error messages for incorrect method signatures into one
  place. Expand the messages and describe the expected function
  signature.

Change-Id: Iae3c6d32df715e877e8c977ccd2232814ef590a7
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/25641
Commit-Queue: Wyatt Hepler <hepler@google.com>
Reviewed-by: Keir Mierle <keir@google.com>