* Fix a typo
* Fix lots of spelling errors
* Fix a few more spelling mistakes
* s/parsable/parseable/
* Don't touch the third party files
* Cloneable is the preferred C# term
* Copyable is the preferred C++ term
* Revert "s/parsable/parseable/"
This reverts commit 534ecf7675.
* Revert unparseable->unparsable corrections
The NullValue enum is typically used as part of the Value well-known type, but can be used elsewhere. In previous code, a NullValue field (other than in Value) would result in a JSON value of the string "NULL_VALUE"; it should instead be the null literal.
When parsing, we still accept "NULL_VALUE" as a valid value for NullValue - this new code being unable to parse old data, and comes for free anyway.
Fixes#7486.
Note that this changes the behavior for message fields where
"WithFormatDefaultValues(true)" has been specified. This is
effectively fixing a bug, but will need to be noted in the release
notes.
Basically, FormatDefaultValues only affects fields that don't
support presence - most commonly, singular primitive non-optional
fields in proto3.
* enable compatibility mode in codegen
* regenerate protos
* improve readability
* more robust way of figuring out path to old C# compiler
* add recent C# changes
FieldDescriptor.HasPresence returns true if both ClearValue and HasValue (on the accessor) can be expected to work. Some fields have a working ClearValue, but no HasValue; HasPresence returns false for those fields.
Generally:
- Extension fields have presence if and only if they're singular
- Repeated fields do not support presence
- Map fields do not support presence
- Message fields support presence
- Oneof fields support presence (this includes synthetic oneof fields, so that covers proto3 optional singular fields)
- Proto2 singular primitive fields support presence
- Proto3 singular primitive fields do not support presence (unless they're in a oneof, covered above)
The changes in the existing proto2 code are solely around presence bits. The new generator allocated presence bits more efficiently. (Previously bits were sometimes allocated but never used.)
Joshua Haberman
Peter Newman
Jon Skeet
Bas van der Linden
James Newton-King
Jan Tattermusch
Jan Tattermusch
listonjesse