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<?php |
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declare(strict_types=1); |
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namespace MartinGeorgiev\Doctrine\ORM\Query\AST\Functions; |
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use Doctrine\ORM\Query\AST\Node; |
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use Doctrine\ORM\Query\Lexer; |
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use Doctrine\ORM\Query\Parser; |
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use Doctrine\ORM\Query\SqlWalker; |
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use Doctrine\ORM\Query\TokenType; |
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use MartinGeorgiev\Doctrine\ORM\Query\AST\Functions\Exception\InvalidArgumentForVariadicFunctionException; |
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use MartinGeorgiev\Doctrine\ORM\Query\AST\Functions\Exception\ParserException; |
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use MartinGeorgiev\Utils\DoctrineLexer; |
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use MartinGeorgiev\Utils\DoctrineOrm; |
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/** |
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* @author Martin Georgiev <[email protected]> |
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*/ |
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abstract class BaseVariadicFunction extends BaseFunction |
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{ |
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protected function customizeFunction(): void |
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{ |
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$this->setFunctionPrototype(\sprintf('%s(%%s)', $this->getFunctionName())); |
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} |
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abstract protected function getFunctionName(): string; |
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/** |
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* @return array<string> |
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*/ |
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abstract protected function getNodeMappingPattern(): array; |
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abstract protected function getMinArgumentCount(): int; |
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abstract protected function getMaxArgumentCount(): int; |
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protected function feedParserWithNodes(Parser $parser): void |
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{ |
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foreach ($this->getNodeMappingPattern() as $nodeMappingPattern) { |
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try { |
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$this->feedParserWithNodesForNodeMappingPattern($parser, $nodeMappingPattern); |
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break; |
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} catch (ParserException) { |
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// swallow and continue with next pattern |
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} |
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} |
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} |
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/** |
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* @throws InvalidArgumentForVariadicFunctionException |
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* @throws ParserException |
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*/ |
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private function feedParserWithNodesForNodeMappingPattern(Parser $parser, string $nodeMappingPattern): void |
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{ |
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$nodeMapping = \explode(',', $nodeMappingPattern); |
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$lexer = $parser->getLexer(); |
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try { |
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$lookaheadType = DoctrineLexer::getLookaheadType($lexer); |
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if ($lookaheadType === null) { |
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throw InvalidArgumentForVariadicFunctionException::atLeast($this->getFunctionName(), $this->getMinArgumentCount()); |
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} |
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$this->nodes[] = $parser->{$nodeMapping[0]}(); // @phpstan-ignore-line |
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} catch (\Throwable $throwable) { |
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throw ParserException::withThrowable($throwable); |
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} |
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$shouldUseLexer = DoctrineOrm::isPre219(); |
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$isNodeMappingASimplePattern = \count($nodeMapping) === 1; |
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$nodeIndex = 1; |
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while (($shouldUseLexer ? Lexer::T_CLOSE_PARENTHESIS : TokenType::T_CLOSE_PARENTHESIS) !== $lookaheadType) { |
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if (($shouldUseLexer ? Lexer::T_COMMA : TokenType::T_COMMA) === $lookaheadType) { |
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$parser->match($shouldUseLexer ? Lexer::T_COMMA : TokenType::T_COMMA); |
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// Check if we're about to exceed the maximum number of arguments |
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// nodeIndex starts at 1 and counts up for each argument after the first |
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// So when nodeIndex=1, we're about to add the 2nd argument (total: 2) |
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// When nodeIndex=2, we're about to add the 3rd argument (total: 3) |
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$foundMoreNodesThanMappingExpected = ($nodeIndex + 1) > $this->getMaxArgumentCount(); |
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if ($foundMoreNodesThanMappingExpected) { |
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throw InvalidArgumentForVariadicFunctionException::between($this->getFunctionName(), $this->getMinArgumentCount(), $this->getMaxArgumentCount()); |
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} |
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$expectedNodeIndex = $isNodeMappingASimplePattern ? 0 : $nodeIndex; |
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$argumentCountExceedsMappingPatternExpectation = !\array_key_exists($expectedNodeIndex, $nodeMapping); |
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if ($argumentCountExceedsMappingPatternExpectation) { |
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throw InvalidArgumentForVariadicFunctionException::unsupportedCombination( |
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$this->getFunctionName(), |
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\count($this->nodes) + 1, |
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'implementation defines fewer node mappings than the actually provided argument count' |
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); |
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} |
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$this->nodes[] = $parser->{$nodeMapping[$expectedNodeIndex]}(); // @phpstan-ignore-line |
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$nodeIndex++; |
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} |
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$lookaheadType = DoctrineLexer::getLookaheadType($lexer); |
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} |
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// Final validation ensures all arguments meet requirements, including any special rules in subclass implementations |
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$this->validateArguments(...$this->nodes); // @phpstan-ignore-line |
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} |
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/** |
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* @throws InvalidArgumentForVariadicFunctionException |
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*/ |
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protected function validateArguments(Node ...$arguments): void |
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{ |
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$minArgumentCount = $this->getMinArgumentCount(); |
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$maxArgumentCount = $this->getMaxArgumentCount(); |
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$argumentCount = \count($arguments); |
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if ($argumentCount < $minArgumentCount) { |
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throw InvalidArgumentForVariadicFunctionException::atLeast($this->getFunctionName(), $this->getMinArgumentCount()); |
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} |
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if ($argumentCount > $maxArgumentCount) { |
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throw InvalidArgumentForVariadicFunctionException::between($this->getFunctionName(), $this->getMinArgumentCount(), $this->getMaxArgumentCount()); |
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} |
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} |
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public function getSql(SqlWalker $sqlWalker): string |
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{ |
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$dispatched = []; |
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foreach ($this->nodes as $node) { |
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$dispatched[] = $node instanceof Node ? $node->dispatch($sqlWalker) : 'null'; |
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} |
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return \sprintf($this->functionPrototype, \implode(', ', $dispatched)); |
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} |
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} |
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martin-georgiev /
postgresql-for-doctrine
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