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<?php |
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namespace SpareParts\Enum\Set; |
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use SpareParts\Enum\Enum; |
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use SpareParts\Enum\Exception\EnumSetMustContainEnumsException; |
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use SpareParts\Enum\Exception\InvalidEnumClassException; |
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trait SetTrait |
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{ |
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/** |
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* @var Enum[] |
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*/ |
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protected $set = []; |
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/** |
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* @var string |
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*/ |
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protected $enumClass; |
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/** |
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* @param string $enumClass |
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* @param Enum[] $set |
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*/ |
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public function __construct(string $enumClass, $set = []) |
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{ |
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// if enum class was sent, we must make sure it is valid |
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$this->setEnumClass($enumClass); |
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if (!is_array($set)) { |
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throw new EnumSetMustContainEnumsException(sprintf("Enum set must be initialized with array of enums.")); |
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} |
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foreach ($set as $enum) { |
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if (!($enum instanceof $this->enumClass)) { |
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throw new EnumSetMustContainEnumsException(sprintf("Expected %s, got %s", $this->enumClass, get_class($enum))); |
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} |
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$this->set[(string) $enum] = $enum; |
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} |
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} |
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public function getIterator(): \ArrayIterator |
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{ |
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return new \ArrayIterator(array_values($this->set)); |
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} |
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public function count(): int |
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{ |
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return count($this->set); |
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} |
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public function contains(Enum $value): bool |
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{ |
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if (in_array($value, $this->set)) { |
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return true; |
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} |
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return false; |
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} |
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protected function setEnumClass(string $enumClass): void |
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{ |
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if (!is_null($enumClass) && !is_subclass_of($enumClass, Enum::class)) { |
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throw new InvalidEnumClassException("Class ${enumClass} does not implement Enum (as it should). Maybe you forgot to specify correct enum class in constructor?"); |
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} |
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$this->enumClass = $enumClass; |
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} |
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} |
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SpareParts /
Enum
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