phan / phan/phan

Phan fails to emit RedundantCondition when a parameter is in a method overriding another method

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enhancement redundant condition detection
Dominant language
PHP
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Merged PRs (30d)
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Description

Seen in StaticType::isExclusivelyNarrowedFormOrEquivalentTo for CodeBase $code_base

Contributor guide

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First steps

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  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 StaticType::isExclusivelyNarrowedFormOrEquivalentTo and inspect how CodeBase $code_base handles parameters in overriding methods. Reproduce the case described in the issue and trace why RedundantCondition is not emitted. Done means the analyzer reports the expected RedundantCondition without introducing false positives.

Written by the indexing model from the issue text.

Assessment

Tech stack
php
Domain
devtools
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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