Fix phpstan/phpstan#14250: trait.duplicateMethod is not reported#5181

Merged

ondrejmirtes merged 8 commits intophpstan:2.1.xfrom

phpstan-bot:create-pull-request/patch-y7tlrzi

Mar 20, 2026

Commits on Mar 20, 2026

Fix phpstan/phpstan#14250: Report trait.duplicateMethod for duplicate methods in traits

phpstan-bot
authored and
staabm
committed
Extract DuplicateDeclarationHelper to share logic between DuplicateDeclarationRule and DuplicateTraitDeclarationRule

authored and
staabm
committed
Add comprehensive tests for duplicate declarations in traits (constants, properties, promoted properties, methods)

authored and
staabm
committed
Fix lint

VincentLanglet
authored and
staabm
committed
Add test case for multiple conflicting traits (no false positive)

authored and
staabm
committed
Fix lint: use import statement for IdentifierRuleError

authored and
staabm
committed
Convert DuplicateDeclarationHelper to AutowiredService instance

phpstan-bot
and
claude
committed
Add @param string literal type for $identifierType in DuplicateDeclarationHelper

phpstan-bot
and
claude
committed