Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
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| 23 | class DirectiveDelegate extends DefinitionDelegate |
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| 24 | { |
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| 25 | /** |
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| 26 | * @param DocumentInterface|Document $document |
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| 27 | * @return Definition |
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| 28 | */ |
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| 29 | protected function bootDefinition(DocumentInterface $document): Definition |
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| 35 | * @param Definition|DirectiveDefinition $definition |
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| 36 | */ |
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| 37 | protected function before(Definition $definition): void |
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| 43 | * @param DirectiveDefinition $directive |
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| 45 | private function bootLocations(DirectiveDefinition $directive): void |
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| 57 | /** |
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| 58 | * @param DirectiveDefinition $directive |
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| 59 | * @param DirectiveLocation $location |
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| 60 | * @throws \Railt\SDL\Exception\CompilerException |
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| 61 | */ |
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| 62 | private function verifyDuplication(DirectiveDefinition $directive, DirectiveLocation $location): void |
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| 72 | /** |
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| 73 | * @param DirectiveDefinition $definition |
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| 74 | * @return iterable|DirectiveLocation[] |
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| 76 | private function getLocations(DirectiveDefinition $definition): iterable |
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| 84 | /** |
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| 85 | * @param DirectiveLocation $location |
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| 86 | * @throws \Railt\SDL\Exception\CompilerException |
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| 87 | */ |
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| 88 | private function verifyLocation(DirectiveLocation $location): void |
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| 98 | } |
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This check looks for parameters that are defined as one type in their type hint or doc comment but seem to be used as a narrower type, i.e an implementation of an interface or a subclass.
Consider changing the type of the parameter or doing an instanceof check before assuming your parameter is of the expected type.