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<?php |
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namespace RulerZ\Target; |
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use Hoa\Ruler\Model as AST; |
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use RulerZ\Compiler\Context; |
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use RulerZ\Exception\OperatorNotFoundException; |
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use RulerZ\Model; |
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use RulerZ\Target\Operators\Definitions as OperatorsDefinitions; |
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/** |
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* Base class for sql-related visitors. |
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*/ |
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class GenericSqlVisitor extends GenericVisitor |
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{ |
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use Polyfill\AccessPath; |
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/** |
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* @var Context |
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*/ |
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protected $context; |
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/** |
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* Allow star operator. |
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* |
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* @var bool |
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*/ |
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protected $allowStarOperator = true; |
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/** |
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* @param bool $allowStarOperator Whether to allow the star operator or not (ie: implicit support of unknown operators). |
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*/ |
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public function __construct(Context $context, OperatorsDefinitions $operators, $allowStarOperator = true) |
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{ |
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parent::__construct($operators); |
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$this->context = $context; |
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$this->allowStarOperator = (bool) $allowStarOperator; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function visitModel(AST\Model $element, &$handle = null, $eldnah = null) |
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{ |
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$sql = parent::visitModel($element, $handle, $eldnah); |
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return '"' . $sql . '"'; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function visitParameter(Model\Parameter $element, &$handle = null, $eldnah = null) |
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{ |
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// make it a placeholder |
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return ':' . $element->getName(); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function visitAccess(AST\Bag\Context $element, &$handle = null, $eldnah = null) |
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{ |
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return $this->flattenAccessPath($element); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function visitArray(AST\Bag\RulerArray $element, &$handle = null, $eldnah = null) |
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{ |
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$array = parent::visitArray($element, $handle, $eldnah); |
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return sprintf('(%s)', implode(', ', $array)); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function visitOperator(AST\Operator $element, &$handle = null, $eldnah = null) |
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{ |
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try { |
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return parent::visitOperator($element, $handle, $eldnah); |
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} catch (OperatorNotFoundException $e) { |
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if (!$this->allowStarOperator) { |
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throw $e; |
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} |
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} |
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$arguments = array_map(function ($argument) use (&$handle, $eldnah) { |
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return $argument->accept($this, $handle, $eldnah); |
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}, $element->getArguments()); |
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return sprintf('%s(%s)', $element->getName(), implode(', ', $arguments)); |
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} |
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} |
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K-Phoen /
rulerz
