False Positive on Match Arm Comparison with Incremented Bounded Integer#5003
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VincentLanglet merged 4 commits intophpstan:2.1.xfrom Feb 21, 2026
Merged
False Positive on Match Arm Comparison with Incremented Bounded Integer#5003VincentLanglet merged 4 commits intophpstan:2.1.xfrom
VincentLanglet merged 4 commits intophpstan:2.1.xfrom
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- MutatingScope::enterMatch() re-evaluated the condition type after the scope had already been updated by processing the increment expression, causing $i++ to be seen as int<1, max> instead of int<0, max> - Pass the pre-computed condition type and native type from NodeScopeResolver to enterMatch() so it uses the correct types - New regression test in tests/PHPStan/Rules/Comparison/data/bug-11310.php Closes phpstan/phpstan#11310
Automated fix attempt 1 for CI failures.
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staabm
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Inspired from #4968
Closes phpstan/phpstan#11310