qnikst / qnikst/HaskellNet

`list` function sometimes calls `last` on empty ByteString

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bug
Dominant language
Haskell
Stars
92
Forks
57
PR merge metrics
No merged PRs in 30d

Description

This of course gives *** Exception: Data.ByteString.last: empty ByteString.

It seems like the issue is potentially related to the length of mailbox names.

Contributor guide

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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 by locating the Haskell implementation of the list function and reproduce the Data.ByteString.last: empty ByteString exception with mailbox names of different lengths. Trace which mailbox-name value becomes empty, then add coverage showing that list no longer calls last on an empty ByteString.

Written by the indexing model from the issue text.

Assessment

Tech stack
haskell
Domain
networking
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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