public static void ValidateTypeArg(ParseInfo parseInfo, AnonymousType typeArg, CodeType type, DocRange errorRange)
{
// 'single' attribute, type-arg is not parallelable.
if (typeArg.AnonymousTypeAttributes.Single)
{
// Bad struct
if (type.Attributes.IsStruct)
{
parseInfo.Script.Diagnostics.Error("Struct types cannot be used with 'single' type args", errorRange);
return;
}
// Extract anonymous types.
var subtypes = type.ExtractAnonymousTypes();
foreach (var subtype in subtypes)
{
if (!subtype.AnonymousTypeAttributes.Single)
{
parseInfo.Script.Diagnostics.Error("The anonymous type used here as a type arg needs to be marked as 'single'", errorRange);
return;
}
}
}
}
