Fix containsNull() for union with (null&T of mixed) - #6390
Open
vojtech-dobes wants to merge 1 commit into
Open
Conversation
Collaborator
|
You've opened the pull request against the latest branch 2.3.x. PHPStan 2.3 is not going to be released for months. If your code is relevant on 2.2.x and you want it to be released sooner, please rebase your pull request and change its target to 2.2.x. |
vojtech-dobes
force-pushed
the
fix-593c71fe
branch
from
September 7, 2026 07:47
3ccfddb to
b307c46
Compare
vojtech-dobes
force-pushed
the
fix-593c71fe
branch
from
September 7, 2026 07:48
b307c46 to
10cfb93
Compare
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
When
$varis union withnull, but thatnullis part of intersection,TypeCombinator::containsNullcurrently doesn't detect this null, leading to false negative.Fixes for example https://phpstan.org/r/1e3fa9bb-efec-4ba4-aec5-8d189e82c990.