public override MultiValue VisitArrayCreation(IArrayCreationOperation operation, StateValue state)
{
var value = base.VisitArrayCreation(operation, state);
// Don't track multi-dimensional arrays
if (operation.DimensionSizes.Length != 1)
{
return(TopValue);
}
// Don't track large arrays for performance reasons
if (operation.Initializer?.ElementValues.Length >= MaxTrackedArrayValues)
{
return(TopValue);
}
var arrayValue = ArrayValue.Create(Visit(operation.DimensionSizes[0], state));
var elements = operation.Initializer?.ElementValues.Select(val => Visit(val, state)).ToArray() ?? System.Array.Empty <MultiValue> ();
foreach (var array in arrayValue.Cast <ArrayValue> ())
{
for (int i = 0; i < elements.Length; i++)
{
array.IndexValues.Add(i, elements[i]);
}
}
return(arrayValue);
}
public override MultiValue VisitFieldReference(IFieldReferenceOperation fieldRef, StateValue state)
{
var field = fieldRef.Field;
switch (field.Name)
{
case "EmptyTypes" when field.ContainingType.IsTypeOf("System", "Type"): {
return(ArrayValue.Create(0));
}
case "Empty" when field.ContainingType.IsTypeOf("System", "String"): {
return(new KnownStringValue(string.Empty));
}
}
if (TryGetConstantValue(fieldRef, out var constValue))
{
return(constValue);
}
if (fieldRef.Field.Type.IsTypeInterestingForDataflow())
{
return(new FieldValue(fieldRef.Field));
}
return(TopValue);
}
public override Value GetValue(UserItem item)
{
if (item.Item is Audio audio)
{
return(ArrayValue <StringValue> .Create(audio.AlbumArtists.Select(StringValue.Create).ToArray()));
}
return(Value.None);
}
public override Value GetValue(UserItem item)
{
if (item.Item is Video video && video.SupportsPeople)
{
var peoples = BaseItem.LibraryManager.GetItemPeople(item.Item);
return(ArrayValue <StringValue> .Create(peoples.Where(x => PersonTypes.Any(x.IsType))
.Select(x => x.Name)?.Select(StringValue.Create).ToArray()));
}
return(Value.None);
}
public override Value GetValue(UserItem item)
{
return(ArrayValue <StringValue> .Create(item.Item.Tags?.Select(StringValue.Create).ToArray()));
}