public void Validate(IDocumentValidatorContext context, DocumentNode document)
{
if (context is null)
{
throw new ArgumentNullException(nameof(context));
}
if (document is null)
{
throw new ArgumentNullException(nameof(document));
}
IDefinitionNode?typeSystemNode = null;
for (var i = 0; i < document.Definitions.Count; i++)
{
IDefinitionNode node = document.Definitions[i];
if (node.Kind is not SyntaxKind.OperationDefinition
and not SyntaxKind.FragmentDefinition)
{
typeSystemNode = node;
break;
}
}
if (typeSystemNode is not null)
{
context.Errors.Add(context.TypeSystemDefinitionNotAllowed(typeSystemNode));
}
}