public ResultsHandle CreateResults(SharedRealmHandle sharedRealm, SortDescriptorHandle sortDescriptor)
{
var result = NativeMethods.create_results(this, sharedRealm, sortDescriptor, out var nativeException);
nativeException.ThrowIfNecessary();
return(new ResultsHandle(sharedRealm, result));
}
// strange as it may seem, this is also called for the LHS when simply iterating All<T>()
protected override Expression VisitConstant(ConstantExpression node)
{
if (node.Value is IQueryableCollection results)
{
// assume constant nodes w/ IQueryables are table references
if (_coreQueryHandle != null)
{
throw new Exception("We already have a table...");
}
_coreQueryHandle = results.GetQuery();
_sortDescriptor = results.GetSortDescriptor();
}
else if (node.Value?.GetType() == typeof(object))
{
throw new NotSupportedException($"The constant for '{node.Value}' is not supported");
}
return(node);
}
public static extern IntPtr create_results(QueryHandle queryPtr, SharedRealmHandle sharedRealm, SortDescriptorHandle sortDescriptor, out NativeException ex);
public static extern void add_clause(SortDescriptorHandle descriptor, TableHandle query, SharedRealmHandle realm,
[MarshalAs(UnmanagedType.LPArray), In] IntPtr[] property_index_chain, IntPtr column_keys_count,
[MarshalAs(UnmanagedType.U1)] bool ascending,
out NativeException ex);
