53 lines
1.7 KiB
PHP
53 lines
1.7 KiB
PHP
<?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\NameNode;
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use GraphQL\Language\AST\NodeKind;
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use GraphQL\Language\AST\OperationDefinitionNode;
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use GraphQL\Language\Visitor;
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use GraphQL\Language\VisitorOperation;
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use GraphQL\Validator\ValidationContext;
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use function sprintf;
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class UniqueOperationNames extends ValidationRule
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{
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/** @var NameNode[] */
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public $knownOperationNames;
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public function getVisitor(ValidationContext $context)
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{
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$this->knownOperationNames = [];
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return [
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NodeKind::OPERATION_DEFINITION => function (OperationDefinitionNode $node) use ($context) : VisitorOperation {
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$operationName = $node->name;
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if ($operationName !== null) {
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if (! isset($this->knownOperationNames[$operationName->value])) {
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$this->knownOperationNames[$operationName->value] = $operationName;
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} else {
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$context->reportError(new Error(
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self::duplicateOperationNameMessage($operationName->value),
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[$this->knownOperationNames[$operationName->value], $operationName]
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));
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}
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}
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return Visitor::skipNode();
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},
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NodeKind::FRAGMENT_DEFINITION => static function () : VisitorOperation {
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return Visitor::skipNode();
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},
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];
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}
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public static function duplicateOperationNameMessage($operationName)
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{
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return sprintf('There can be only one operation named "%s".', $operationName);
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}
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}
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