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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| 25 | class DirectiveDelegate extends TypeDefinitionDelegate |
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| 27 | /** |
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| 28 | * @param DocumentInterface|Document $document |
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| 29 | * @return Definition |
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| 30 | */ |
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| 31 | protected function create(DocumentInterface $document): Definition |
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| 37 | * @return void |
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| 39 | protected function register(): void |
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| 47 | * @param DirectiveDefinition|TypeDefinition $directive |
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| 49 | private function bootLocations(DirectiveDefinition $directive): void |
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| 61 | /** |
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| 62 | * @param DirectiveDefinition $directive |
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| 63 | * @param DirectiveLocation $location |
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| 64 | * @throws \Railt\SDL\Exception\CompilerException |
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| 65 | */ |
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| 66 | private function verifyDuplication(DirectiveDefinition $directive, DirectiveLocation $location): void |
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| 76 | /** |
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| 77 | * @param DirectiveDefinition $definition |
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| 78 | * @return iterable|DirectiveLocation[] |
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| 80 | private function getLocations(DirectiveDefinition $definition): iterable |
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| 89 | * @param DirectiveLocation $location |
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| 90 | * @throws \Railt\SDL\Exception\CompilerException |
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| 91 | */ |
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| 92 | private function verifyLocation(DirectiveLocation $location): void |
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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.