tree 809c28adc79c03e21dd18170059414ea1a179784
parent beaa55256c574913ed48c983296269f23025c923
author Joe Tsai <joetsai@digital-static.net> 1592244138 -0700
committer Joe Tsai <joetsai@digital-static.net> 1592246278 +0000

types/known/anypb: gracefully handle nil sources

Add checks so that MarshalFrom and UnmarshalTo consistently matches
the behavior of the proto package with regard to nil messages.
In particular, using a nil message as the destination results in
a panic (which is already the current behavior), while using a
nil message as the source does not panic (it is usually treated as
an untyped empty message). Since an untyped message has no
sensible meaning in the context of Any, return an error.

Change-Id: I99e86c2cdfbd8be57cc039efd550458dc56aadbc
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/237920
Reviewed-by: Damien Neil <dneil@google.com>