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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) 2017 Elao |
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* |
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* @author Elao <[email protected]> |
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*/ |
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namespace Elao\Enum\Bridge\Faker\Provider; |
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use Elao\Enum\EnumInterface; |
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use Elao\Enum\Exception\InvalidArgumentException; |
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use Elao\Enum\FlaggedEnum; |
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class EnumProvider |
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{ |
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/** |
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* Enum mapping as an array with : |
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* |
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* - alias for Enum class as key |
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* - Enum FQCN as value |
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* |
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* Example : |
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* |
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* ``` |
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* [ |
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* 'Civility' => Civility::class, |
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* 'Gender' => Gender::class, |
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* ] |
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* ``` |
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* |
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* @var array $enumMapping |
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*/ |
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private $enumMapping = []; |
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public function __construct(array $enumMapping) |
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{ |
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foreach ($enumMapping as $enumAlias => $enumClass) { |
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$this->ensureEnumClass($enumClass); |
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$this->enumMapping[$enumAlias] = $enumClass; |
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} |
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} |
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/** |
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* @param string $enumValueShortcut As <ENUM_CLASS_ALIAS>::<ENUM_VALUE_CONSTANT> |
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* Examples: 'Gender::MALE', 'Gender::FEMALE', 'Permissions::READ|WRITE', etc. |
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* |
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* @throws \InvalidArgumentException When the alias part of $enumValueShortcut is not a valid alias |
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* |
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* @return EnumInterface |
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*/ |
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public function enum(string $enumValueShortcut): EnumInterface |
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{ |
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list($enumClassAlias, $constants) = explode('::', $enumValueShortcut); |
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if (!array_key_exists($enumClassAlias, $this->enumMapping)) { |
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throw new InvalidArgumentException("$enumClassAlias is not a valid alias"); |
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} |
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/** @var EnumInterface $class */ |
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$class = $this->enumMapping[$enumClassAlias]; |
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$constants = explode('|', $constants); |
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// Flagged Enum if $constants count is greater than one: |
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if (count($constants) > 1) { |
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if (!is_a($class, FlaggedEnum::class, true)) { |
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throw new InvalidArgumentException("$class is not a valid FlaggedEnum"); |
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} |
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$value = 0; |
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foreach ($constants as $constant) { |
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$value |= constant($class . '::' . $constant); |
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} |
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} else { |
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$value = constant($class . '::' . current($constants)); |
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} |
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return $class::get($value); |
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} |
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public function randomEnum(string $enumClassAlias): EnumInterface |
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{ |
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if (!array_key_exists($enumClassAlias, $this->enumMapping)) { |
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throw new InvalidArgumentException("$enumClassAlias is not a valid alias"); |
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} |
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// Unimplemented yet |
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} |
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/** |
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* Make sure that $enumClass is a proper Enum class. Throws exception otherwise. |
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* |
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* @param string $enumClass |
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* |
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* @throws \InvalidArgumentException When $enumClass is not a class or is not a proper Enum |
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*/ |
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private function ensureEnumClass(string $enumClass) |
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{ |
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if (!is_a($enumClass, EnumInterface::class, true)) { |
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throw new InvalidArgumentException("$enumClass is not a proper enum class"); |
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} |
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} |
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} |
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Elao /
PhpEnums
