tree 552b486000ff21c4748a9cb44cc0923a52940a7e
parent 9647a7c2356a9529754c07235a2877ee676c2fd0
author Joshua Haberman <jhaberman@gmail.com> 1610060318 -0800
committer GitHub <noreply@github.com> 1610060318 -0800
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Fix PhpDoc comments for message accessors to include "|null". (#8136)

Message accessors will return null when when the field is not
set, so this should be reflected in the PhpDoc.

Also updated the code generator for the well-known types to reflect
the edits made in https://github.com/protocolbuffers/protobuf/pull/8105.

Also explicitly check for upb_msg_has() in the oneof accessor, so
we are not implicitly relying on unset message fields returning NULL
at the upb level.