phan / phan/phan

Warn about `catch (... $e) { throw $e; }` in DuplicateExpressionPlugin

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enhancement
Dominant language
PHP
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Forks
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Avg merge
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Merged PRs (30d)
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Description

This is generally left over code from code which used to log an exception - it creates a local variable that is usually not used and is less efficient.

Do not warn if there are catch statements after it.

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 with DuplicateExpressionPlugin and trace how it handles catch statements. Add a warning for catch (... $e) { throw $e; }, while preserving cases with later catch statements; done means the analyzer reports only the specified redundant pattern without false positives.

Written by the indexing model from the issue text.

Assessment

Tech stack
php
Domain
devtools
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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