tree c94d1246653d1295dfece22b87fc44b67452cee4
parent cdb77735690769e70cf823761f2a94779405a005
author John Wright <jsw@google.com> 1557941953 -0600
committer Joe Tsai <joetsai@google.com> 1557967846 +0000

internal/prototype: support dynamic enum and message types in extension

GoExtension now supports extensions that have enum or message type that
is implemented by a Go type that can take on multiple enum or message
types (i.e. the actual enum or message type cannot be determined simply
from the zero value of its Go type). This is necessary to support
dynamic types generated at runtime from descriptors rather than at
compile-time.

Change-Id: Ia0b3b4b02332fc83c0c85e992b37ded467070472
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/177338
Reviewed-by: Joe Tsai <joetsai@google.com>