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<?php |
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/* |
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* This file is part of the "elao/enum" package. |
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* |
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* Copyright (C) Elao |
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* |
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* @author Elao <[email protected]> |
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*/ |
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namespace Elao\Enum; |
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use Elao\Enum\Exception\LogicException; |
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/** |
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* Auto-discover enumerated values from public constants. |
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*/ |
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trait AutoDiscoveredValuesTrait |
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{ |
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/** @var array */ |
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private static $guessedValues = []; |
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/** |
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* @see EnumInterface::values() |
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* |
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* @return int[]|string[] |
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*/ |
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public static function values(): array |
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{ |
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return static::autodiscoveredValues(); |
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} |
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/** |
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* @see ChoiceEnumTrait::choices() |
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*/ |
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protected static function choices(): array |
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{ |
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if (!in_array(ChoiceEnumTrait::class, class_uses(self::class, false), true)) { |
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throw new LogicException(sprintf( |
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'Method "%s" is only meant to be used when using the "%s" trait which is not used in "%s"', |
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__METHOD__, |
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ChoiceEnumTrait::class, |
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static::class |
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)); |
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} |
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return array_combine(static::autodiscoveredValues(), static::autodiscoveredValues()); |
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} |
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/** |
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* @internal |
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*/ |
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private static function autodiscoveredValues(): array |
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{ |
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$enumType = static::class; |
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if (!isset(self::$guessedValues[$enumType])) { |
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$r = new \ReflectionClass($enumType); |
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$values = $r->getConstants(); |
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View Code Duplication |
if (PHP_VERSION_ID >= 70100) { |
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$values = array_filter($values, function (string $k) use ($r) { |
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return $r->getReflectionConstant($k)->isPublic(); |
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}, ARRAY_FILTER_USE_KEY); |
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} |
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if (is_a($enumType, FlaggedEnum::class, true)) { |
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$values = array_filter($values, function ($v) { |
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return is_int($v) && 0 === ($v & $v - 1) && $v > 0; |
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}); |
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} |
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self::$guessedValues[$enumType] = array_values($values); |
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} |
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return self::$guessedValues[$enumType]; |
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} |
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} |
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Elao /
PhpEnums
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.