Custom Query (121 matches)

Reported by rich@…, 3 years ago.

I'm not sure how to provide a small demonstration here.

In the "spread" module, (SpreadModule? on pypi), there is a type spread.MembershipMsg? which contains a "group_id", spread.MembershipMsg?.group_id. The group_id is an opaque type. I'm not sure how to generate one of these easily aside from bringing up a spread system, which seems like overkill.

In any case, attempting to serialize this opaque type with pyyaml results in a python core dump.

I recognize that pyyaml can't possibly know how to serialize or unserialize this sort of object. However, I think that attempting to do so should result in a suitable exception rather than an interpreter core dump.

I'll find another way around my problem. But chasing down this dump took me a couple of days. If it had been an exception, I'd have found the problem in minutes.

Reported by roel _ dot _ vanhout _ at _ gmail _ dot _ com, 7 years ago.

2 issues:

• pointer arithmetic on void*'s is a gcc-ism. I 'solved' it by casting them all to a unsigned char (typedef'd), I'm not sure if a unsigned char is guaranteed to be the same size as a void* on all architectures - it worked on 32-bit Windows, FWIW.

• A shorthand struct assignment didn't work, I'm not sure if it's valid C or not but whatever, by writing it out in full it compiled ok.

Reported by roel _ dot _ vanhout _ at _ gmail _ dot _ com, 7 years ago.

The run-parser.c test file crashes on the following test document: ============START================

---
- Harry Potter and the Prisoner of Azkaban
- Harry Potter and the Goblet of Fire
- Harry Potter and the Order of the Phoenix
---
- Memoirs Found in a Bathtub
- Snow Crash
- Ghost World

=============END=================

Crash in is api.c, line 604 of the release tarball:

case YAML_SCALAR_TOKEN:

==> yaml_free(token->data.scalar.value);

break;

When I comment out the second document of the test file (from the second '---' on down), it runs fine.