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<?php declare(strict_types=1); |
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/** |
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* This file is part of the daikon-cqrs/value-object project. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Daikon\ValueObject; |
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use Daikon\Interop\Assertion; |
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use Daikon\Interop\InvalidArgumentException; |
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use ReflectionClass; |
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trait ValueObjectCollectionTrait |
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{ |
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public function __construct(iterable $objects = []) |
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{ |
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$validTypes = array_keys(static::getTypeFactories()); |
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$this->init($objects, $validTypes); |
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} |
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public static function makeEmpty(): self |
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{ |
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return new static; |
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} |
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/** @param static $comparator */ |
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public function equals($comparator): bool |
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{ |
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$this->assertInitialized(); |
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/** |
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* @psalm-suppress RedundantConditionGivenDocblockType |
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* @psalm-suppress DocblockTypeContradiction |
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*/ |
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Assertion::isInstanceOf( |
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$comparator, |
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static::class, |
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sprintf( |
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"Invalid comparator type '%s' given to ".static::class, |
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is_object($comparator) ? get_class($comparator) : @gettype($comparator) |
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) |
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); |
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/** @var ValueObjectInterface $object */ |
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foreach ($this as $index => $object) { |
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$comparison = $comparator->get($index, null); |
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if (!$comparison || !$object->equals($comparison)) { |
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return false; |
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} |
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} |
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return true; |
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} |
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/** @param null|iterable $state */ |
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public static function fromNative($state): self |
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{ |
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Assertion::nullOrIsTraversable($state, 'State provided to '.static::class.' must be null or iterable.'); |
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$typeFactories = static::getTypeFactories(); |
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// Override fromNative() to support multiple types |
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Assertion::count($typeFactories, 1, sprintf("Only 1 @type annotation is supported by '%s'.", static::class)); |
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/** @var array $typeFactory */ |
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$typeFactory = current($typeFactories); |
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Assertion::isCallable($typeFactory, sprintf( |
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"@type factory '%s' is not callable in '%s'.", |
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implode('::', $typeFactory), |
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static::class |
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)); |
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$objects = []; |
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if (!is_null($state)) { |
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foreach ($state as $key => $data) { |
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$objects[$key] = $typeFactory($data); |
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} |
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} |
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return new static($objects); |
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} |
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/** @return array */ |
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public function toNative() |
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{ |
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$this->assertInitialized(); |
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$objects = []; |
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foreach ($this as $key => $object) { |
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$objects[$key] = $object->toNative(); |
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} |
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return $objects; |
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} |
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public function __toString(): string |
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{ |
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$this->assertInitialized(); |
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$parts = []; |
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foreach ($this as $key => $object) { |
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$parts[] = $key.':'.(string)$object; |
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} |
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return implode(', ', $parts); |
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} |
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private static function getTypeFactories(): array |
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{ |
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$classReflection = new ReflectionClass(static::class); |
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if (!preg_match_all('#@type\s+(?<type>.+)#', (string)$classReflection->getDocComment(), $matches)) { |
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throw new InvalidArgumentException(sprintf("Missing @type annotation on '%s'.", static::class)); |
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} |
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$callables = []; |
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foreach ($matches['type'] as $type) { |
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$callable = array_map('trim', explode('::', $type)); |
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Assertion::keyNotExists( |
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$callables, |
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$callable[0], |
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sprintf("Ambiguous @type annotation for '$callable[0]' in '%s'.", static::class) |
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); |
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if (!isset($callable[1])) { |
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$callable[1] = 'fromNative'; |
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} |
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$callables[$callable[0]] = $callable; |
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} |
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return $callables; |
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} |
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} |
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daikon-cqrs /
value-object
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