private void CompleteList(
IFieldValueCompletionContext context,
Action <object, int, List <object> > completeElement,
bool isNonNullElement)
{
if (context.Value is IEnumerable enumerable)
{
int i = 0;
List <object> list = new List <object>();
foreach (object element in enumerable)
{
if (isNonNullElement && element == null)
{
context.AddError(
"The list does not allow null elements");
return;
}
completeElement(element, i++, list);
}
context.SetResult(list);
}
else
{
context.AddError(
"A list value must implement " +
$"{typeof(IEnumerable).FullName}.");
}
}
public void CompleteValue(
IFieldValueCompletionContext context,
Action <IFieldValueCompletionContext> nextHandler)
{
if (context.Type.IsScalarType() || context.Type.IsEnumType())
{
if (context.Type is ISerializableType serializable)
{
try
{
context.SetResult(serializable.Serialize(context.Value));
}
catch (ArgumentException ex)
{
context.AddError(ex.Message);
}
catch (Exception)
{
context.AddError(
"Undefined field serialization error.");
}
}
else
{
context.AddError(
"Scalar types and enum types must be serializable.");
}
}
else
{
nextHandler?.Invoke(context);
}
}
public void CompleteValue(
IFieldValueCompletionContext context,
Action <IFieldValueCompletionContext> nextHandler)
{
if (context.Type.IsObjectType() ||
context.Type.IsInterfaceType() ||
context.Type.IsUnionType())
{
ObjectType objectType = ResolveObjectType(
context.ResolverContext, context.Type, context.Value);
if (objectType == null)
{
context.AddError(new FieldError(
"Could not resolve the schema type from " +
$"`{context.Value.GetType().GetTypeName()}`.",
context.Selection.Node));
return;
}
CompleteObjectValue(context, nextHandler, objectType);
}
else
{
nextHandler?.Invoke(context);
}
}
public void CompleteValue(
IFieldValueCompletionContext context,
Action <IFieldValueCompletionContext> nextHandler)
{
if (context.Value is IQueryError error)
{
context.AddError(error);
}
else if (context.Value is IEnumerable <IQueryError> errors)
{
context.AddErrors(errors);
}
else
{
nextHandler?.Invoke(context);
}
}