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<?php declare(strict_types=1); |
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/** |
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* PHP version 8.0 |
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* |
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* This source file is subject to the license that is bundled with this package in the file LICENSE. |
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*/ |
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namespace PhUml\Graphviz\Builders; |
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use PhUml\Code\ClassDefinition; |
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use PhUml\Code\Codebase; |
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use PhUml\Code\Name; |
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use PhUml\Code\Variables\HasType; |
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use PhUml\Graphviz\Edge; |
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/** |
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* It creates edges by inspecting a class |
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* |
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* 1. It creates edges by inspecting the attributes of a class |
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* 2. It creates edges by inspecting the parameters of the constructor of a class |
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*/ |
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final class EdgesBuilder implements AssociationsBuilder |
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{ |
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/** @var bool[] */ |
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private array $associations = []; |
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/** |
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* It creates an edge if the attribute |
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* |
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* - Has type information and it's not a PHP's built-in type |
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* - The association hasn't already been resolved |
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* |
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* @return Edge[] |
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*/ |
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public function fromAttributes(ClassDefinition $class, Codebase $codebase): array |
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{ |
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return $this->buildEdgesFor($class, $class->attributes(), $codebase); |
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} |
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/** |
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* It creates an edge if the constructor parameter |
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* |
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* - Has type information and it's not a PHP's built-in type |
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* - The association hasn't already been resolved |
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* |
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* @return Edge[] |
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*/ |
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public function fromConstructor(ClassDefinition $class, Codebase $codebase): array |
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{ |
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return $this->buildEdgesFor($class, $class->constructorParameters(), $codebase); |
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} |
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/** |
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* @param HasType[] $variables |
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* @return Edge[] |
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*/ |
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private function buildEdgesFor(ClassDefinition $class, array $variables, Codebase $codebase): array |
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{ |
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$edges = []; |
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foreach ($variables as $parameter) { |
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if (! $this->needAssociation($class, $parameter)) { |
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continue; |
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} |
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$edges[] = $this->addAssociations($class, $parameter, $codebase); |
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} |
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return array_merge(...$edges); |
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} |
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/** @return Edge[] */ |
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private function addAssociations(ClassDefinition $class, HasType $attribute, Codebase $codebase): array |
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{ |
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$this->markAssociationResolvedFor($class, $attribute); |
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return array_map( |
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static fn (Name $reference): Edge => Edge::association($codebase->get($reference), $class), |
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$attribute->references() |
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); |
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} |
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private function needAssociation(ClassDefinition $class, HasType $attribute): bool |
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{ |
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return ! $this->isAssociationResolved($class, $attribute); |
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} |
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private function isAssociationResolved(ClassDefinition $class, HasType $attribute): bool |
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{ |
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return array_key_exists($this->associationKey($class, $attribute), $this->associations); |
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} |
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private function markAssociationResolvedFor(ClassDefinition $class, HasType $attribute): void |
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{ |
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$this->associations[$this->associationKey($class, $attribute)] = true; |
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} |
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private function associationKey(ClassDefinition $class, HasType $attribute): string |
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{ |
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return $class->name() . $attribute->type(); |
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} |
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} |
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MontealegreLuis /
phuml
