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<?php |
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namespace Digia\GraphQL\Language\ASTBuilder; |
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use Digia\GraphQL\Error\SyntaxErrorException; |
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use Digia\GraphQL\Language\LexerInterface; |
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use Digia\GraphQL\Language\Node\NodeKindEnum; |
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use Digia\GraphQL\Language\TokenKindEnum; |
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class OperationDefinitionASTBuilder extends AbstractASTBuilder |
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{ |
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/** |
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* @inheritdoc |
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*/ |
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public function supportsBuilder(string $kind): bool |
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{ |
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return $kind === ASTKindEnum::OPERATION_DEFINITION; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function build(LexerInterface $lexer, array $params): ?array |
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{ |
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$start = $lexer->getToken(); |
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if ($this->peek($lexer, TokenKindEnum::BRACE_L)) { |
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return [ |
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'kind' => NodeKindEnum::OPERATION_DEFINITION, |
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'operation' => 'query', |
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'name' => null, |
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'variableDefinitions' => [], |
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'directives' => [], |
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'selectionSet' => $this->buildAST(ASTKindEnum::SELECTION_SET, $lexer), |
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'loc' => $this->buildLocation($lexer, $start), |
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]; |
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} |
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$operation = $this->parseOperationType($lexer); |
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if ($this->peek($lexer, TokenKindEnum::NAME)) { |
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$name = $this->buildAST(ASTKindEnum::NAME, $lexer); |
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} |
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return [ |
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'kind' => NodeKindEnum::OPERATION_DEFINITION, |
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'operation' => $operation, |
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'name' => $name ?? null, |
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'variableDefinitions' => $this->buildAST(ASTKindEnum::VARIABLE_DEFINITION, $lexer), |
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'directives' => $this->buildAST(ASTKindEnum::DIRECTIVES, $lexer, ['isConst' => false]), |
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'selectionSet' => $this->buildAST(ASTKindEnum::SELECTION_SET, $lexer), |
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'loc' => $this->buildLocation($lexer, $start), |
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]; |
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} |
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/** |
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* @param LexerInterface $lexer |
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* @return string |
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* @throws SyntaxErrorException |
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*/ |
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protected function parseOperationType(LexerInterface $lexer): string |
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{ |
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$token = $this->expect($lexer, TokenKindEnum::NAME); |
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$value = $token->getValue(); |
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if ($this->isOperation($value)) { |
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return $value; |
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} |
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throw $this->unexpected($lexer, $token); |
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} |
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/** |
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* @param string $value |
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* @return bool |
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*/ |
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protected function isOperation(string $value): bool |
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{ |
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return \in_array($value, ['query', 'mutation', 'subscription'], true); |
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} |
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} |
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digiaonline /
graphql-php
