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<?php |
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declare(strict_types=1); |
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namespace Gacela\Container; |
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use ReflectionClass; |
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use ReflectionNamedType; |
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use function class_exists; |
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/** |
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* Analyzes and reports dependency trees for classes. |
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*/ |
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final class DependencyTreeAnalyzer |
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{ |
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public function __construct( |
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private BindingResolver $bindingResolver, |
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) { |
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} |
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/** |
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* Get all dependencies for a class as a flat list. |
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* |
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* @param class-string $className |
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* |
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* @return list<string> |
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*/ |
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public function analyze(string $className): array |
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{ |
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if (!class_exists($className)) { |
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return []; |
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} |
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$dependencies = []; |
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$this->collectDependencies($className, $dependencies); |
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/** @var list<string> */ |
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return array_keys($dependencies); |
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} |
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/** |
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* Recursively collect dependencies for a class. |
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* |
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* @param class-string $className |
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* @param array<string, true> $dependencies |
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*/ |
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private function collectDependencies(string $className, array &$dependencies): void |
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{ |
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$reflection = new ReflectionClass($className); |
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$constructor = $reflection->getConstructor(); |
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if ($constructor === null) { |
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return; |
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} |
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foreach ($constructor->getParameters() as $parameter) { |
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$type = $parameter->getType(); |
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if (!$type instanceof ReflectionNamedType || $type->isBuiltin()) { |
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continue; |
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} |
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/** @var class-string $paramTypeName */ |
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$paramTypeName = $type->getName(); |
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// Resolve binding if it's an interface |
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$paramTypeName = $this->bindingResolver->resolveType($paramTypeName); |
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if (isset($dependencies[$paramTypeName])) { |
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continue; // Already processed |
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} |
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$dependencies[$paramTypeName] = true; |
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if (class_exists($paramTypeName)) { |
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$this->collectDependencies($paramTypeName, $dependencies); |
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} |
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} |
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} |
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} |
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gacela-project /
container
