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<?php |
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/****************************************************************************** |
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* Copyright (c) 2016 Constantin Galbenu <[email protected]> * |
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******************************************************************************/ |
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namespace Gica\CodeAnalysis\Shared\ClassSorter; |
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use Gica\CodeAnalysis\Shared\ClassComparison\SubclassComparator; |
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use Gica\CodeAnalysis\Shared\ClassSorter; |
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class ByConstructorDependencySorter implements ClassSorter |
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{ |
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private $cache = []; |
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public function __invoke(\ReflectionClass $before, \ReflectionClass $after) |
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{ |
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return $this->doesClassDependsOnClass($after, $before); |
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} |
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private function doesClassDependsOnClass(\ReflectionClass $consumerClass, \ReflectionClass $consumedClass): bool |
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{ |
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$dependencies = $this->getClassDependencies($consumerClass); |
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return $this->isParentClassOfAny($consumedClass, $dependencies); |
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} |
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/** |
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* @param \ReflectionClass $reflectionClass |
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* @param int $level |
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* @return string[] |
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*/ |
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private function getClassDependencies(\ReflectionClass $reflectionClass, int $level = 0) |
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{ |
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if (!isset($this->cache[$reflectionClass->name])) { |
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$this->cache[$reflectionClass->name] = $this->_getClassDependencies($reflectionClass); |
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} |
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return $this->cache[$reflectionClass->name]; |
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} |
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/** |
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* @param \ReflectionClass $reflectionClass |
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* @param int $level |
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* @return string[] |
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*/ |
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private function _getClassDependencies(\ReflectionClass $reflectionClass, int $level = 0) |
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{ |
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$dependencies = []; |
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if ($level > 5) { |
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return $dependencies; |
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} |
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$constructor = $reflectionClass->getConstructor(); |
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if ($constructor && $constructor->getParameters()) { |
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$dependencies = array_merge($dependencies, $this->classNameFromParameters($constructor->getParameters())); |
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} |
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if ($reflectionClass->getParentClass()) { |
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$dependencies = array_merge($dependencies, $this->getClassDependencies($reflectionClass->getParentClass())); |
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} |
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foreach ($dependencies as $dependency) { |
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$dependencies = array_merge($dependencies, $this->getClassDependencies($dependency, $level + 1)); |
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} |
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return $dependencies; |
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} |
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private function isParentClassOfAny(\ReflectionClass $parentClass, $classes): bool |
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{ |
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$comparator = new SubclassComparator(); |
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$isASubClassOrSameClass = function (\ReflectionClass $class) use ($parentClass, $comparator) { |
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return $comparator->isASubClassOrSameClass($class, $parentClass->name); |
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}; |
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$filtered = array_filter($classes, $isASubClassOrSameClass); |
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return count($filtered) > 0; |
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} |
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private function classNameFromParameter(\ReflectionParameter $parameter) |
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{ |
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return $parameter->getClass(); |
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} |
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/** |
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* @param \ReflectionParameter[] $parameters |
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* @return string[] |
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*/ |
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private function classNameFromParameters(array $parameters) |
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{ |
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$strings = array_map(function (\ReflectionParameter $parameter) { |
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return $this->classNameFromParameter($parameter); |
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}, $parameters); |
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return array_filter($strings, function ($s) { |
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return !!$s; |
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}); |
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} |
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} |
xprt64 /
code-analysis
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.