| 1 | <?php  | 
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| 9 | class PathParamsMapper implements ParamMapperInterface  | 
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| 10 | { | 
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| 11 | private const REQUIRED_PROPERTY_PREFIX = '!';  | 
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| 12 | |||
| 13 | public function map(Request $request, array $propsMap): array  | 
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| 37 | |||
| 38 | private function isParamRequired(string $paramName): bool  | 
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| 42 | |||
| 43 | private function assertRequiredParamIsPresent(string $paramName, Request $request): void  | 
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| 53 | }  | 
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| 54 | 
This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVarassignment in line 1 and the$higherassignment in line 2 are dead. The first because$myVaris never used and the second because$higheris always overwritten for every possible time line.