PennyLaneAI / PennyLaneAI/catalyst

Minor issue in the CompiledFunction call interface

Open
#1,972 0 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

frontend
Dominant language
Python
Stars
234
Forks
84
Avg merge
2d 15h
Merged PRs (30d)
66

Description

Happened upon this by chance, but it appears to me the following line is erroneous:
https://github.com/PennyLaneAI/catalyst/blob/834b582c68ecdf6e3f759fcf8c4de88bcef67bb1/frontend/catalyst/compiled_functions.py#L318

args is defined up here and always consists of two elements, the args tuple and the kwargs dict:
https://github.com/PennyLaneAI/catalyst/blob/834b582c68ecdf6e3f759fcf8c4de88bcef67bb1/frontend/catalyst/compiled_functions.py#L296-L304

My guess is maybe the author intended to check the length of args_data, but I'm not 100% sure. Apparently this mistake doesn't cause any issues (except when I was messing around with the CompiledFunction internals directly).

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start in frontend/catalyst/compiled_functions.py around lines 296–304 and 318, then compare the handling of args with args_data in the CompiledFunction call interface. Confirm which length is intended and verify the behavior when calling CompiledFunction internals directly; done means the erroneous check is corrected without changing normal calls.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
compilers
Issue type
Bug
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.