46 lines
1.5 KiB
PHP
46 lines
1.5 KiB
PHP
<?php
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namespace GraphQL\Validator\Rules;
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use GraphQL\Error\Error;
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use GraphQL\Language\AST\FieldNode;
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use GraphQL\Language\AST\NodeKind;
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use GraphQL\Type\Definition\Type;
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use GraphQL\Validator\ValidationContext;
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class ScalarLeafs extends AbstractValidationRule
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{
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static function noSubselectionAllowedMessage($field, $type)
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{
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return "Field \"$field\" of type \"$type\" must not have a sub selection.";
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}
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static function requiredSubselectionMessage($field, $type)
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{
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return "Field \"$field\" of type \"$type\" must have a sub selection.";
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}
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public function getVisitor(ValidationContext $context)
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{
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return [
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NodeKind::FIELD => function(FieldNode $node) use ($context) {
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$type = $context->getType();
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if ($type) {
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if (Type::isLeafType(Type::getNamedType($type))) {
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if ($node->selectionSet) {
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$context->reportError(new Error(
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self::noSubselectionAllowedMessage($node->name->value, $type),
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[$node->selectionSet]
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));
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}
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} else if (!$node->selectionSet) {
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$context->reportError(new Error(
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self::requiredSubselectionMessage($node->name->value, $type),
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[$node]
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));
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}
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}
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}
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];
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}
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}
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