Digia\GraphQL\Validation\Rule\UniqueVariableNamesRule::enterNode()

Complexity

Conditions	4
Paths	6

Size

Total Lines	23
Code Lines	13

Duplication

Lines	0
Ratio	0 %

Importance

Changes

0

<?php
    public function enterNode(NodeInterface $node): ?NodeInterface
    {
        if ($node instanceof OperationDefinitionNode) {
            $this->knownVariableNames = [];
        }

        if ($node instanceof VariableDefinitionNode) {
            $variable     = $node->getVariable();
            $variableName = $variable->getNameValue();

            if (isset($this->knownVariableNames[$variableName])) {
                $this->validationContext->reportError(
                    new ValidationException(
                        duplicateVariableMessage($variableName),
                        [$this->knownVariableNames[$variableName], $variable->getName()]
                    )
                );
            } else {
                $this->knownVariableNames[$variableName] = $variable->getName();
            }
        }

        return $node;
    }