tree 2ddb997b4bdd860438cf9658ffa11daddf3e304f
parent 293dc761cbab7a4dd3cb9af31981d806a9073a2c
author Damien Neil <dneil@google.com> 1563223183 -0700
committer Damien Neil <dneil@google.com> 1567546845 +0000

types/dynamicpb: support dynamic extensions

Add a dynamicpb.NewExtensionType function to permit creating extension
types from descriptors.

Also fix a some bugs around extension field handling:
When creating a new value for an extension field, use the
ExtensionType's Zero or New method to create the value.

Ensure that prototest exercises true zero-values of fields. (i.e.,
getting a list, map, or message from an empty message rather than
creating a new empty one with NewField.)

Change-Id: Idb8e87cdc92692610e12a4b8a68c34b129fae617
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/186180
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>