Sample
pycparser 2.22: Parse C99 source declarations into a FileAST hierarchy, manage typedef scoping with isolated state per invocation, and track source coordinates with CParser.parse in pycparser 2.22.
Verified sample for pypi pycparser 2.22: Parse C99 source declarations into a FileAST hierarchy, manage typedef scoping with isolated state per invocation…
sha256:ca8c63c9274039bc589c4047477b862d3c00b249d31002ec1a7aa378052c6b3b
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
- Parse C99 source declarations into a FileAST hierarchy, manage typedef scoping with isolated state per invocation, and track source coordinates with CParser.parse in pycparser 2.22.
- Packages
- Symbols
-
- pycparser.c_parser.CParser.parse
- Environment
- python
- Created
- 2026-08-17T23:06:18Z
Contract
- CParser().parse parses C99 source declarations into a typed FileAST hierarchy preserving node coordinates and declaration structures.
- CParser().parse isolates typedef symbol table scope across successive parse calls on the same instance, raising ParseError when undeclared types are referenced.
- CParser().parse recognizes #line preprocessor directives and overrides source file and line coordinate attributes accordingly.
- CParser().parse requires preprocessed C source input, raising ParseError on unsupported preprocessor directives and raw comments.
- CParser().parse parses empty input strings into a FileAST instance with an empty declaration list.
Files
- NOTES.md
- csx.json
- requirements.txt
- test/contract.py