Digia\GraphQL\Validation\Rule\VariablesAreInputTypesRule

Complexity

Total Complexity

3

Size/Duplication

Total Lines	23
Duplicated Lines	0 %

Importance

Changes

0

1 Method

Rating	Name	Duplication	Size	Complexity
A	enterNode()	0	18	3

<?php

namespace Digia\GraphQL\Validation\Rule;

use Digia\GraphQL\Error\ValidationException;
use Digia\GraphQL\Language\Node\NodeInterface;
use Digia\GraphQL\Language\Node\VariableDefinitionNode;
use function Digia\GraphQL\printNode;
use function Digia\GraphQL\Type\isInputType;
use function Digia\GraphQL\Util\typeFromAST;
use function Digia\GraphQL\Validation\nonInputTypeOnVariableMessage;

/**
 * Variables are input types
 *
 * A GraphQL operation is only valid if all the variables it defines are of
 * input types (scalar, enum, or input object).
 */
class VariablesAreInputTypesRule extends AbstractRule
{
    /**
     * @inheritdoc
     */
    public function enterNode(NodeInterface $node): ?NodeInterface
    {
        if ($node instanceof VariableDefinitionNode) {
            $type = typeFromAST($this->validationContext->getSchema(), $node->getType());

            if (!isInputType($type)) {
                $variableName = $node->getVariable()->getNameValue();

                $this->validationContext->reportError(
                    new ValidationException(
                        nonInputTypeOnVariableMessage($variableName, printNode($node->getType())),
                        [$node->getType()]
                    )
                );
            }
        }

        return $node;
    }
}