| static public misplacedDirectiveMessage ( $directiveName, $placement ) |
public function __invoke(ValidationContext $context)
{
return [Node::DIRECTIVE => function (Directive $node, $key, $parent, $path, $ancestors) use($context) {
$directiveDef = null;
foreach ($context->getSchema()->getDirectives() as $def) {
if ($def->name === $node->name->value) {
$directiveDef = $def;
break;
}
}
if (!$directiveDef) {
return new Error(Messages::unknownDirectiveMessage($node->name->value), [$node]);
}
$appliedTo = $ancestors[count($ancestors) - 1];
if ($appliedTo instanceof OperationDefinition && !$directiveDef->onOperation) {
return new Error(Messages::misplacedDirectiveMessage($node->name->value, 'operation'), [$node]);
}
if ($appliedTo instanceof Field && !$directiveDef->onField) {
return new Error(Messages::misplacedDirectiveMessage($node->name->value, 'field'), [$node]);
}
$fragmentKind = $appliedTo instanceof FragmentSpread || $appliedTo instanceof InlineFragment || $appliedTo instanceof FragmentDefinition;
if ($fragmentKind && !$directiveDef->onFragment) {
return new Error(Messages::misplacedDirectiveMessage($node->name->value, 'fragment'), [$node]);
}
}];
}
function misplacedDirective($directiveName, $placement, $line, $column)
{
return new FormattedError(Messages::misplacedDirectiveMessage($directiveName, $placement), [new SourceLocation($line, $column)]);
}