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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 FragmentASTBuilder 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::FRAGMENT; |
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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 = $lexer->getToken(); |
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$this->expect($lexer, TokenKindEnum::SPREAD); |
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$tokenValue = $lexer->getTokenValue(); |
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if ($tokenValue !== 'on' && $this->peek($lexer, TokenKindEnum::NAME)) { |
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return [ |
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'kind' => NodeKindEnum::FRAGMENT_SPREAD, |
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'name' => $this->parseFragmentName($lexer), |
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'directives' => $this->buildAST(ASTKindEnum::DIRECTIVES, $lexer), |
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'loc' => $this->buildLocation($lexer, $start), |
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]; |
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} |
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if ($tokenValue === 'on') { |
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$lexer->advance(); |
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$typeCondition = $this->buildAST(ASTKindEnum::NAMED_TYPE, $lexer); |
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} |
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return [ |
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'kind' => NodeKindEnum::INLINE_FRAGMENT, |
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'typeCondition' => $typeCondition ?? null, |
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'directives' => $this->buildAST(ASTKindEnum::DIRECTIVES, $lexer), |
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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 array |
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* @throws SyntaxErrorException |
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*/ |
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protected function parseFragmentName(LexerInterface $lexer): array |
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{ |
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if ($lexer->getTokenValue() === 'on') { |
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throw $this->unexpected($lexer); |
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} |
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return $this->buildAST(ASTKindEnum::NAME, $lexer); |
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} |
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} |
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digiaonline /
graphql-php
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