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| <?php declare(strict_types = 1); | |
| /* | |
| * Copyright (c) 2019, Josef Kufner <josef@kufner.cz> | |
| * | |
| * Licensed under the Apache License, Version 2.0 (the "License"); | |
| * you may not use this file except in compliance with the License. | |
| * You may obtain a copy of the License at | |
| * | |
| * http://www.apache.org/licenses/LICENSE-2.0 | |
| * | |
| * Unless required by applicable law or agreed to in writing, software | |
| * distributed under the License is distributed on an "AS IS" BASIS, | |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| * See the License for the specific language governing permissions and | |
| * limitations under the License. | |
| * | |
| */ | |
| namespace Smalldb\StateMachine\ClassGenerator; | |
| use ReflectionClass; | |
| use Smalldb\StateMachine\ClassGenerator\ReferenceClassGenerator\DecoratingGenerator; | |
| use Smalldb\StateMachine\ClassGenerator\ReferenceClassGenerator\DummyGenerator; | |
| use Smalldb\StateMachine\ClassGenerator\ReferenceClassGenerator\InheritingGenerator; | |
| use Smalldb\StateMachine\Definition\StateMachineDefinition; | |
| use Smalldb\StateMachine\DtoExtension\Definition\DtoExtension; | |
| use Smalldb\StateMachine\InvalidArgumentException; | |
| use Smalldb\StateMachine\MachineIdentifierInterface; | |
| use Smalldb\StateMachine\ReferenceInterface; | |
| class ReferenceClassGenerator extends AbstractClassGenerator | |
| { | |
| private ?InheritingGenerator $inheritingGenerator = null; | |
| private ?DecoratingGenerator $decoratingGenerator = null; | |
| private ?DummyGenerator $dummyGenerator = null; | |
| public function __construct(SmalldbClassGenerator $classGenerator) | |
| { | |
| parent::__construct($classGenerator); | |
| } | |
| protected function getDecoratingGenerator(): DecoratingGenerator | |
| { | |
| return $this->decoratingGenerator | |
| ?? ($this->decoratingGenerator = new DecoratingGenerator($this->getClassGenerator())); | |
| } | |
| protected function getInheritingGenerator(): InheritingGenerator | |
| { | |
| return $this->inheritingGenerator | |
| ?? ($this->inheritingGenerator = new InheritingGenerator($this->getClassGenerator())); | |
| } | |
| protected function getDummyGenerator(): DummyGenerator | |
| { | |
| return $this->dummyGenerator | |
| ?? ($this->dummyGenerator = new DummyGenerator($this->getClassGenerator())); | |
| } | |
| /** | |
| * Generate a new class implementing the missing methods in $sourceReferenceClassName. | |
| * | |
| * @return string Class name of the implementation. | |
| * @throws ReflectionException | |
| */ | |
| public function generateReferenceClass(string $sourceReferenceClassName, StateMachineDefinition $definition): string | |
| { | |
| try { | |
| $generator = null; | |
| $sourceClassReflection = new ReflectionClass($sourceReferenceClassName); | |
| if ($definition->hasExtension(DtoExtension::class)) { | |
| return $this->getDecoratingGenerator()->generateReferenceClass($sourceReferenceClassName, $definition); | |
| } | |
| $parentClassReflection = $sourceClassReflection->getParentClass(); | |
| if ($parentClassReflection && !$parentClassReflection->implementsInterface(ReferenceInterface::class)) { | |
| // If parent class is not a reference, then it is DTO extended into a Reference object. | |
| return $this->getInheritingGenerator()->generateReferenceClass($sourceReferenceClassName, $definition); | |
| } else { | |
| $implementsInterface = []; | |
| foreach ($sourceClassReflection->getInterfaces() as $interfaceReflection) { | |
| if (!$interfaceReflection->implementsInterface(ReferenceInterface::class) | |
| && $interfaceReflection->getName() !== MachineIdentifierInterface::class) | |
| { | |
| $implementsInterface[] = $interfaceReflection; | |
| } | |
| } | |
| switch (count($implementsInterface)) { | |
| case 0: | |
| // No DTO detected, generate an empty Reference object. | |
| return $this->getDummyGenerator()->generateReferenceClass($sourceReferenceClassName, $definition); | |
| case 1: | |
| // If there is a single interface other than ReferenceInterface, | |
| // then the reference decorates this interface. | |
| return $this->getDecoratingGenerator()->generateReferenceClass($sourceReferenceClassName, $definition); | |
| } | |
| } | |
| throw new InvalidArgumentException("Failed to detect the desired Reference implementation: $sourceReferenceClassName"); | |
| } | |
| // @codeCoverageIgnoreStart | |
| catch (\ReflectionException $ex) { | |
| throw new ReflectionException("Failed to generate Smalldb reference class: " . $definition->getMachineType(), 0, $ex); | |
| } | |
| // @codeCoverageIgnoreEnd | |
| } | |
| } |