Sample
protobuf 6.33.6: FieldMask manages camelCase JSON transformations, descriptor validation, set operations, and selective message merging with configurable sub-message and repeated field replacement
Verified sample for pypi protobuf 6.33.6: FieldMask manages camelCase JSON transformations, descriptor validation, set operations, and selective message…
sha256:9ac7d9b3f12d2828afc86f03b6a7abf2a462acf9f640b1b2d796b0099f94cabe
This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured.
How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people.
MIT-0
Execution evidence
The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.
- Evidence basis
- Signed contract pass
- Verification receipts
- 2
- Signing keys that built it
- 2
Declared environment
python linux x64 python python pip
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| python 3.12 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · python@1 |
2026-08-17 |
| python 3.12 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · python@1 |
2026-08-18 |
Case
HOW- Goal
- FieldMask manages camelCase JSON transformations, descriptor validation, set operations, and selective message merging with configurable sub-message and repeated field replacement
- Packages
- Symbols
-
- google.protobuf.field_mask_pb2.FieldMask
- google.protobuf.field_mask_pb2.FieldMask.FromJsonString
- google.protobuf.field_mask_pb2.FieldMask.ToJsonString
- google.protobuf.field_mask_pb2.FieldMask.IsValidForDescriptor
- google.protobuf.field_mask_pb2.FieldMask.CanonicalFormFromMask
- google.protobuf.field_mask_pb2.FieldMask.Union
- google.protobuf.field_mask_pb2.FieldMask.Intersect
- google.protobuf.field_mask_pb2.FieldMask.MergeMessage
- google.protobuf.field_mask_pb2.FieldMask.AllFieldsFromDescriptor
- Environment
- python
- Created
- 2026-08-17T20:13:07Z
Contract
- FromJsonString parses comma-separated lowerCamelCase field paths into snake_case paths and strictly rejects paths containing underscore characters with ValueError
- ToJsonString converts stored snake_case paths back into a comma-separated lowerCamelCase string, returning an empty string when the mask contains no paths
- IsValidForDescriptor verifies that all paths in the mask resolve to existing message fields and returns False for nonexistent fields or traversal into scalar fields
- CanonicalFormFromMask sorts paths alphabetically and removes redundant descendant paths covered by an ancestor prefix
- Union and Intersect perform canonical set operations across masks while maintaining prefix pruning and alphabetical ordering
- MergeMessage copies only masked fields from source to destination, recursively merging sub-messages and appending repeated elements by default
- MergeMessage replaces sub-messages when replace_message_field is True and clears repeated lists before copying when replace_repeated_field is True
- AllFieldsFromDescriptor populates the mask with all top-level field names declared on the message descriptor
Files
- NOTES.md
- csx.json
- requirements.lock
- requirements.txt
- test/contract.py