public static string Render(this AstNaryOperator @operator)
{
return(@operator switch
{
AstNaryOperator.Add => "$add",
AstNaryOperator.Avg => "$avg",
AstNaryOperator.Concat => "$concat",
AstNaryOperator.ConcatArrays => "$concatArrays",
AstNaryOperator.Max => "$max",
AstNaryOperator.MergeObjects => "$mergeObjects",
AstNaryOperator.Min => "$min",
AstNaryOperator.Multiply => "$multiply",
AstNaryOperator.SetEquals => "$setEquals",
AstNaryOperator.SetIntersection => "$setIntersection",
AstNaryOperator.SetUnion => "$setUnion",
AstNaryOperator.StdDevPop => "$stdDevPop",
AstNaryOperator.StdDevSamp => "$stdDevSamp",
AstNaryOperator.Sum => "$sum",
_ => throw new InvalidOperationException($"Unexpected n-ary operator: {@operator}.")
});
public AstNaryExpression(AstNaryOperator @operator, params AstExpression[] args)
: this(@operator, (IEnumerable <AstExpression>)args)
{
}
public AstNaryExpression(AstNaryOperator @operator, IEnumerable <AstExpression> args)
{
_operator = @operator;
_args = Ensure.IsNotNull(args, nameof(args)).AsReadOnlyList();
}
