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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 VariableDefinitionASTBuilder 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::VARIABLE_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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return $this->peek($lexer, TokenKindEnum::PAREN_L) |
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? $this->many($lexer, TokenKindEnum::PAREN_L, [$this, 'parseVariableDefinition'], TokenKindEnum::PAREN_R) |
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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 parseVariableDefinition(LexerInterface $lexer): array |
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{ |
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$start = $lexer->getToken(); |
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/** |
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* @param LexerInterface $lexer |
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* @return mixed |
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* @throws SyntaxErrorException |
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*/ |
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$parseType = function (LexerInterface $lexer) { |
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$this->expect($lexer, TokenKindEnum::COLON); |
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return $this->buildAST(ASTKindEnum::TYPE_REFERENCE, $lexer); |
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}; |
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return [ |
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'kind' => NodeKindEnum::VARIABLE_DEFINITION, |
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'variable' => $this->buildAST(ASTKindEnum::VARIABLE, $lexer), |
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'type' => $parseType($lexer), |
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'defaultValue' => $this->skip($lexer, TokenKindEnum::EQUALS) |
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? $this->buildAST(ASTKindEnum::VALUE, $lexer, ['isConst' => true]) |
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: null, |
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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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digiaonline /
graphql-php
