Continuing work from #484 by @kevinaud to fix#419
* Implementing pickle methods
* Implement __copy__, __reduce__, and fix __setstate__
* Moved pickling tests into their own file
* Add test for caching
* Update protobuf pregenerated files
* Update grpcio-tools to latest version
* Implement proto3 field presence
* Fix to_dict with None optional fields.
* Add test with optional enum
* Properly support optional enums
* Add tests for 64-bit ints and floats
* Support field presence for int64 types
* Fix oneof serialization with proto3 field presence (#292)
= Description
The serialization of a oneof message that contains a message with fields
with explicit presence was buggy.
For example:
```
message A {
oneof kind {
B b = 1;
C c = 2;
}
}
message B {}
message C {
optional bool z = 1;
}
```
Serializing `A(b=B())` would lead to this payload:
```
0A # tag1, length delimited
00 # length: 0
12 # tag2, length delimited
00 # length: 0
```
Which when deserialized, leads to the message `A(c=C())`.
= Explanation
The issue lies in the post_init method. All fields are introspected, and
if different from PLACEHOLDER, the message is marked as having been
"serialized_on_wire".
Then, when serializing `A(b=B())`, we go through each field of the
oneof:
- field 'b': this is the selected field from the group, so it is
serialized
- field 'c': marked as 'serialized_on_wire', so it is added as well.
= Fix
The issue is that support for explicit presence changed the default
value from PLACEHOLDER to None. This breaks the post_init method in that
case, which is relatively easy to fix: if a field is optional, and set
to None, this is considered as the default value (which it is).
This fix however has a side-effect: the group_current for this field (the
oneof trick for explicit presence) is no longer set. This changes the
behavior when serializing the message in JSON: as the value is the
default one (None), and the group is not set (which would force the
serialization of the field), so None fields are no longer serialized in
JSON. This break one test, and will be fixed in the next commit.
* fix: do not serialize None fields in JSON format
This is linked to the fix from the previous commit: after it, scalar
None fields were not included in the JSON format, but some were still
included.
This is all cleaned up: None fields are not added in JSON by default,
as they indicate the default value of fields with explicit presence.
However, if `include_default_values is set, they are included.
* Fix: use builtin annotation prefix
* Remove comment
Co-authored-by: roblabla <unfiltered@roblab.la>
Co-authored-by: Vincent Thiberville <vthib@pm.me>
- Enable oneof_enum test case that passes now (removed the xfail)
- Switch from toml to tomlkit as a dev dep for better toml support
- upgrade poethepoet to latest stable release
- use full table format for poe tasks to avoid long lines in pyproject.toml
- remove redundant _WrappedMessage class
- fix various Mypy warnings
- reformat some comments for consistent line length
- Remove plugin dependency on protobuf since it's no longer required.
- Update poethepoet to for better pyproject toml syntax support
- Add handy generate_lib poe task for maintaining generated libs
This change ensures that the wheel built only requests for the minimum
version of black it requires to function as intended. Without this
change any project that uses betterproto[compiler] would break while
resolving dependencies.
This change removes the dependency on platform provided protobuf tools
in favour of `grpcio-tools` dependency. This makes both development and
compiler use independent from platform dependencies.
- dropped dev dependency on rope, isort & flake
- poetry doesn't support dev scripts like pipenv, so create a makefile instead
- Add pytest-cov
- Use tox for testing multiple python versions in CI
- Update README
Update ci workflow
