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<?php |
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/** |
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* Base daft objects. |
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* |
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* @author SignpostMarv |
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*/ |
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declare(strict_types=1); |
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namespace SignpostMarv\DaftObject; |
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/** |
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* @template T as DefinesOwnIdPropertiesInterface |
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*/ |
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trait DaftObjectIdValuesHashLazyInt |
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{ |
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/** |
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* @var array<string, array<string, string>> |
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* |
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* @psalm-var array<class-string<T>, array<string, string>> |
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*/ |
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private static $ids = []; |
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/** |
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* @psalm-param T $object |
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* |
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* @see DefinesOwnIdPropertiesInterface::DaftObjectIdHash() |
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*/ |
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public static function DaftObjectIdHash(DefinesOwnIdPropertiesInterface $object) : string |
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{ |
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$id = []; |
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/** |
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* @var array<int, string> |
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*/ |
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$properties = $object::DaftObjectIdProperties(); |
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foreach ($properties as $prop) { |
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/** |
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* @var scalar|array|object|null |
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*/ |
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$val = $object->$prop; |
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$id[] = static::VarExportNonScalars($val); |
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} |
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return static::DaftObjectIdValuesHash($id); |
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} |
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/** |
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* @param (scalar|array|object|null)[] $id |
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* |
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* @see DefinesOwnIdPropertiesInterface::DaftObjectIdValuesHash() |
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*/ |
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public static function DaftObjectIdValuesHash(array $id) : string |
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{ |
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$className = static::class; |
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$objectIds = implode('::', array_map(static::class . '::VarExportNonScalars', $id)); |
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if ( ! isset(self::$ids[$className])) { |
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self::$ids[$className] = []; |
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} |
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if ( ! isset(self::$ids[$className][$objectIds])) { |
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self::$ids[$className][$objectIds] = static::VarExportNonScalars(count( |
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self::$ids[$className] |
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)); |
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} |
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return self::$ids[$className][$objectIds]; |
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} |
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/** |
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* @param mixed $maybe |
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*/ |
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private static function VarExportNonScalars($maybe) : string |
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{ |
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if (is_string($maybe)) { |
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return $maybe; |
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} |
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return |
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is_scalar($maybe) |
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? (string) $maybe |
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: var_export($maybe, true); |
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} |
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} |
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SignpostMarv /
daft-object
