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<?php |
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declare(strict_types=1); |
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namespace GraphQL\Validator\Rules; |
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use GraphQL\Error\Error; |
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use GraphQL\Language\AST\NodeKind; |
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use GraphQL\Language\AST\ObjectFieldNode; |
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use GraphQL\Language\Visitor; |
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use GraphQL\Validator\ASTValidationContext; |
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use GraphQL\Validator\SDLValidationContext; |
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use GraphQL\Validator\ValidationContext; |
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use function array_pop; |
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use function sprintf; |
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class UniqueInputFieldNames extends ValidationRule |
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{ |
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/** @var string[] */ |
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public $knownNames; |
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/** @var string[][] */ |
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public $knownNameStack; |
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122 |
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public function getVisitor(ValidationContext $context) |
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{ |
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return $this->getASTVisitor($context); |
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} |
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207 |
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public function getSDLVisitor(SDLValidationContext $context) |
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{ |
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return $this->getASTVisitor($context); |
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} |
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322 |
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public function getASTVisitor(ASTValidationContext $context) |
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{ |
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322 |
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$this->knownNames = []; |
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322 |
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$this->knownNameStack = []; |
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return [ |
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NodeKind::OBJECT => [ |
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'enter' => function () { |
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$this->knownNameStack[] = $this->knownNames; |
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$this->knownNames = []; |
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322 |
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}, |
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'leave' => function () { |
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$this->knownNames = array_pop($this->knownNameStack); |
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322 |
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}, |
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], |
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NodeKind::OBJECT_FIELD => function (ObjectFieldNode $node) use ($context) { |
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$fieldName = $node->name->value; |
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if (! empty($this->knownNames[$fieldName])) { |
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$context->reportError(new Error( |
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self::duplicateInputFieldMessage($fieldName), |
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[$this->knownNames[$fieldName], $node->name] |
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)); |
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} else { |
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$this->knownNames[$fieldName] = $node->name; |
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} |
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return Visitor::skipNode(); |
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322 |
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}, |
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]; |
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} |
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public static function duplicateInputFieldMessage($fieldName) |
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{ |
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return sprintf('There can be only one input field named "%s".', $fieldName); |
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} |
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} |
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webonyx /
graphql-php
