tree 74c38ab176ddc69033f6b2c21f1f46aae241bf3a
parent e2afdc27e7960f4bb0a086ee86fd3f47dee7a005
author Damien Neil <dneil@google.com> 1540585717 -0700
committer Damien Neil <dneil@google.com> 1540828763 +0000

reflect/protoreflect: add FieldDescriptor.DefaultEnumValue method

Default values for enums are specified by name, not number. An enum
may contain multiple values with different names but the same number.
Representing the default as a protoreflect.Value containing an EnumNumber
can discard information.

Add a method returning the EnumValueDescriptor.

Change-Id: If8beee3f81d41c4f9af45423252603b86949c7a5
Reviewed-on: https://go-review.googlesource.com/c/145158
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>