internal static void AddAppliedDirectivesField <TSourceType>(this ComplexGraphType <TSourceType> type, string element)
where TSourceType : IProvideMetadata
{
type.FieldAsync <NonNullGraphType <ListGraphType <NonNullGraphType <__AppliedDirective> > > >(
name: "appliedDirectives",
description: $"Directives applied to the {element}",
resolve: async context =>
{
if (context.Source.HasAppliedDirectives())
{
var appliedDirectives = context.Source.GetAppliedDirectives();
var result = context.ArrayPool.Rent <AppliedDirective>(appliedDirectives.Count);
int index = 0;
foreach (var applied in appliedDirectives.List)
{
// return only registered directives allowed by filter
var schemaDirective = context.Schema.Directives.Find(applied.Name);
if (schemaDirective != null && await context.Schema.Filter.AllowDirective(schemaDirective))
{
result[index++] = applied;
}
}
return(result.Constrained(index));
}
return(Array.Empty <AppliedDirective>());
});
}
