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<?php |
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namespace Happyr\DoctrineSpecification\Operand; |
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use Happyr\DoctrineSpecification\Exception\NotConvertibleException; |
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/** |
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* This service is intended for backward compatibility and may be removed in the future. |
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*/ |
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class ArgumentToOperandConverter |
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{ |
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/** |
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* Convert the argument into the field operand if it is not an operand. |
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* |
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* @param Operand|string $argument |
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* |
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* @return Operand |
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*/ |
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public static function toField($argument) |
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{ |
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if ($argument instanceof Operand) { |
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return $argument; |
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} |
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return new Field($argument); |
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} |
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/** |
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* Convert the argument into the value operand if it is not an operand. |
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* |
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* @param Operand|string $argument |
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* |
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* @return Operand |
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*/ |
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public static function toValue($argument) |
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{ |
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if ($argument instanceof Operand) { |
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return $argument; |
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} |
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return new Value($argument); |
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} |
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/** |
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* Are all arguments is a operands? |
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* |
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* @param array $arguments |
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* |
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* @return bool |
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*/ |
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public static function isAllOperands(array $arguments) |
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{ |
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foreach ($arguments as $argument) { |
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if (!($argument instanceof Operand)) { |
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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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/** |
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* Convert all possible arguments to operands. |
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* |
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* @param Operand[]|string[] $arguments |
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* |
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* @throws NotConvertibleException |
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* |
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* @return Operand[] |
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*/ |
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public static function convert(array $arguments) |
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{ |
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$result = []; |
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$size = count($arguments); |
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foreach (array_values($arguments) as $i => $argument) { |
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if (0 === $i) { |
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// always try convert the first argument to the field operand |
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$argument = self::toField($argument); |
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} elseif ($i === $size - 1) { |
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// always try convert the last argument to the value operand |
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$argument = self::toValue($argument); |
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} elseif (!($argument instanceof Operand)) { |
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throw new NotConvertibleException('You passed arguments not all of which are operands.'); |
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} |
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$result[] = $argument; |
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} |
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return $result; |
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} |
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} |
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Happyr /
Doctrine-Specification
