This should significantly reduce the size of large arenas. Previously, a large arena would nearly double in size if the most recent block filled up. This could end up wasting large amounts of memory. After this CL, we will waste at most the max block size, which defaults to 32k.
This more or less matches the behavior of the C++ arena.
PiperOrigin-RevId: 647802280
When compiling the upb codebase, I randomly noticed there was one usage of directly calling `longjmp` though it seems the convention is to use the `UPB_LONGJMP` macro. AFAICT, the macro is mostly a wrapper to improve behavior on MacOS, so this may improve behavior there, otherwise it should be just making the code more consistent.
Closes#17201
COPYBARA_INTEGRATE_REVIEW=https://github.com/protocolbuffers/protobuf/pull/17201 from anuraaga:patch-1 14cc027ef2
PiperOrigin-RevId: 645420330
Since statically tree shaken messages can never later become linked, we should not need to use any of the special code in the decoder. By using a distinct "empty" message type, we avoid triggering any of this special behavior. This avoids bugs around hazzers and other presence checks.
Also fixed a bug in the cmake staleness test that was causing test failures.
PiperOrigin-RevId: 643036818
This was previously fixed in C++ (https://github.com/protocolbuffers/protobuf/issues/16549), but not ported to other languages. Delimited field encoding can be inherited by fields where it's invalid, such as non-messages and maps. In these cases, the encoding should be ignored and length-prefixed should be used.
PiperOrigin-RevId: 642792988
The functionality is enabled when the proto_one_output_per_message option used by C++ Lite is enabled.
This mirrors the behavior of C++ lite protos.
PiperOrigin-RevId: 642327960
The second assert in _upb_EncodeRoundTripFloat is raised if val is a nan. This fix just returns the output of first spnprintf.
I am not sure how changes to this repo are made so feel free to ignore this CL.
To test this, you could
1. Define a proto with a float field
message Test {
float val = 1;
}
2. In a python script, import the library and then set the val to nan and try to print it.
proto = Test(val=float('nan'))
print(proto)
This will cause a coredump due to assertion error:
assert.h assertion failed at third_party/upb/upb/lex/round_trip.c:46 in void _upb_EncodeRoundTripFloat(float, char *, size_t): strtof(buf, NULL) == val
Added the corresponding change to double too
PiperOrigin-RevId: 637127851
This "feature" hasn't been implemented yet, but this puts a placeholder down to prevent compatibility issues in future editions. Once we provide versioning support on individual feature values, we don't want them becoming usable from edition 2023 protos
PiperOrigin-RevId: 635956805
upb users currently need to manually fetch a oneof field in order to clear it.
In this CL, we add a convenience method to do that in one fell swoop.
PiperOrigin-RevId: 631454136
upb users currently need to manually fetch a oneof field in order to clear it.
In this CL, we add a convenience method to do that in one fell swoop.
PiperOrigin-RevId: 629782904
Joshua Haberman
Derek Benson
Protobuf Team Bot
Anuraag (Rag) Agrawal
Protobuf Team Bot
Mike Kruskal
Dave MacLachlan
Hong Shin
pbatg
Eric Salo
Éamonn McManus