This flag has consistent behavior between proto2 and proto3 optionals (by not including either one), unlike including_default_value_fields which does include proto2 optional but excludes proto3 optionals.
including_default_value_fields is now deprecated and will be removed in an upcoming release.
PiperOrigin-RevId: 603156447
Also hardened the text format printer against invalid UTF-8 in string fields. The output string will always be valid UTF-8, even if string fields contain invalid UTF-8.
PiperOrigin-RevId: 600990001
Include AddFileDescriptor, AddDescriptor, AddEnumDescriptor,
AddExtensionDescriptor, AddServiceDescriptor.
Those Deprecated APIs may add unlinked descriptors to descriptor_pool which is
is wrong. Should use Add() or AddSerializedFile() instead. Those APIs were
raising deprecated warnings since 2019
PiperOrigin-RevId: 595831718
Users should use the add-on unknown_fields.py support.
Old usage example:
unknown_field_set = msg.UnknownFields()
New usage should be:
from google.protobuf import unknown_fields
unknown_field_set = unknown_fields.UnknownFieldSet(msg)
PiperOrigin-RevId: 589969095
This has been replaced by edition and feature getters. Any code depending on syntax will likely be broken by editions files, and should be migrated to the finer-grained feature helpers.
PiperOrigin-RevId: 589866745
As a prerequisite of enabling go/protobuf-weak-speed-messages downcasts using built-in cast operations need to be changed to cast functions recommended by protobuf team (go/protobuf-downcast-recommendation)
**More information**: go/protobuf-stripping-lsc
#codehealth
PiperOrigin-RevId: 582977861
This also fixes a few minor bugs in the editions implementation that were caught in python/conformance tests, and adds a new SetFeatureSetDefaults API to the def pool for consistency with C++ and other python implementations.
PiperOrigin-RevId: 581384108
This was already fully implemented in C++, but we need to expose features methods to the Python runtime to fully enable it. This also enables conformance and unit-testing for C++.
PiperOrigin-RevId: 581364355
This change only covers pure python, and follow-up changes will handle C++/upb variants and actually enable editions support. The C++ one works (as evident from the conformance tests), but needs some APIs added to allow for testing.
PiperOrigin-RevId: 580304039
Previously we were allocating memory on the message's arena every time we performed a `map[key]` or `map.get(key)` operation. This is unnecessary, as the key's data is only needed ephemerally, for the duration of the lookup, and we can therefore alias the Python object's string data instead of copying it.
This required fixing a bug in the convert.c operation. Previously in the `arena==NULL` case, if the user passes a bytes object instead of a unicode string, the code would return a pointer to a temporary Python object that had already been freed, leading to use-after-free. I fixed this by referencing the bytes object's data directly, and using utf8_range to verify the UTF-8.
Fixes: https://github.com/protocolbuffers/protobuf/issues/14571
PiperOrigin-RevId: 578563555
Previously we were allocating memory on the message's arena every time we performed a `map[key]` or `map.get(key)` operation. This is unnecessary, as the key's data is only needed ephemerally, for the duration of the lookup, and we can therefore alias the Python object's string data instead of copying it.
This required fixing a bug in the convert.c operation. Previously in the `arena==NULL` case, if the user passes a bytes object instead of a unicode string, the code would return a pointer to a temporary Python object that had already been freed, leading to use-after-free. I fixed this by referencing the bytes object's data directly, and using utf8_range to verify the UTF-8.
Fixes: https://github.com/protocolbuffers/protobuf/issues/14571
PiperOrigin-RevId: 578563555
Because pure python builds all descriptors at runtime via reflection, it's unable to parse options during the build of descriptor.proto (i.e. before we've built the options schemas). We always lazily parse these options to avoid this, but that still means options can't be *used* during this build. Since the current build process makes heavy use of features (which previously just relied on syntax), this poses a problem for editions.
To get around this, we just embed the resolved features directly into the gencode for this one file. This will allow us to skip feature resolution for these descriptors and still consider features in their build.
PiperOrigin-RevId: 577495949
The attempt at a more optimized approach doesn't round-trip all values of `datetime` on all platforms because `datetime.fromtimestamp(tzinfo)` is limited by the range of values accepted by `time.gmtime`, which can be substantially narrower than `datetime.min` to `datetime.max`. (The documentation notes that either `OverflowError` or `OSError` can be raised in that case, and that often this is limited to 1970 through 2038, versus 1 to 9999. See also https://github.com/python/cpython/issues/110042, the use of `gmtime` here seems unnecessary when the tzinfo supports the entire range.) So, supporting that whole range would require need fallback logic that uses this general approach anyways, which then requires a redundant set of tests for error behavior that amounts to a reimplementation of the whole function.
In addition, `datetime.fromtimestamp` doesn't support the full precision of `datetime` (https://github.com/python/cpython/issues/109849), which required adding additional code and an additional assumption (that neither tz offsets were sub-second nor tz changes mid-second).
Added test-cases for `datetime.min` in addition to the ones for `datetime.max`. Adjusted the examples and variable names slightly.
PiperOrigin-RevId: 569259168
The previous code did not work because timedelta arithmetic does not do timezone conversions. The result of adding a timedelta to a datetime has the same fixed UTC offset as the original datetime. This resulted in the correct timezone not being applied by `Timestamp.ToDatetime(tz)` whenever the UTC offset for the timezone at the represented moment was not the same as the UTC offset for that timezone at the epoch.
Instead, construct the datetime directly from the seconds part of the timestamp. It would be nice to include the nanoseconds as well (truncated to datetime's millisecond precision, but without unnecessary loss of precision). However, that doesn't work, since there isn't a way to construct a datetime from an integer-milliseconds timestamp, just float-seconds, which doesn't allow some datetime values to round-trip correctly. (This does assume that `tzinfo.utcoffset(dt).microseconds` is always zero, and that the value returned by `tzinfo.utcoffset(dt)` doesn't change mid-second. Neither of these is necessarily the case (see https://github.com/python/cpython/issues/49538), though I'd hope they hold in practice.)
This does take some care to still handle non-standard Timestamps where nanos is more than 1,000,000,000 (i.e. more than a second), since previously ToDatetime handled that, as do the other To* conversion methods.
The bug doesn't manifest for UTC (or any fixed-offset timezone), so it can be worked around in a way that will be correct before and after the fix by replacing `ts.ToDatetime(tz)` with `ts.ToDatetime(datetime.timezone.utc).astimezone(tz)`.
PiperOrigin-RevId: 569012931
This change moves almost everything in the `upb/` directory up one level, so
that for example `upb/upb/generated_code_support.h` becomes just
`upb/generated_code_support.h`. The only exceptions I made to this were that I
left `upb/cmake` and `upb/BUILD` where they are, mostly because that avoids
conflict with other files and the current locations seem reasonable for now.
The `python/` directory is a little bit of a challenge because we had to merge
the existing directory there with `upb/python/`. I made `upb/python/BUILD` into
the BUILD file for the merged directory, and it effectively loads the contents
of the other BUILD file via `python/build_targets.bzl`, but I plan to clean
this up soon.
PiperOrigin-RevId: 568651768
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