Ejemplo n.º 1
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        public static bool IsAccumulator(this AstUnaryOperator @operator, out AstAccumulatorOperator accumulatorOperator)
        {
            switch (@operator)
            {
            case AstUnaryOperator.AddToSet: accumulatorOperator = AstAccumulatorOperator.AddToSet; return(true);

            case AstUnaryOperator.Avg: accumulatorOperator = AstAccumulatorOperator.Avg; return(true);

            case AstUnaryOperator.First: accumulatorOperator = AstAccumulatorOperator.First; return(true);

            case AstUnaryOperator.Last: accumulatorOperator = AstAccumulatorOperator.Last; return(true);

            case AstUnaryOperator.Max: accumulatorOperator = AstAccumulatorOperator.Max; return(true);

            case AstUnaryOperator.Min: accumulatorOperator = AstAccumulatorOperator.Min; return(true);

            case AstUnaryOperator.Push: accumulatorOperator = AstAccumulatorOperator.Push; return(true);

            case AstUnaryOperator.StdDevPop: accumulatorOperator = AstAccumulatorOperator.StdDevPop; return(true);

            case AstUnaryOperator.StdDevSamp: accumulatorOperator = AstAccumulatorOperator.StdDevSamp; return(true);

            case AstUnaryOperator.Sum: accumulatorOperator = AstAccumulatorOperator.Sum; return(true);

            default: accumulatorOperator = default; return(false);
            }
        }
 public static string Render(this AstAccumulatorOperator @operator)
 {
     return(@operator switch
     {
         AstAccumulatorOperator.AddToSet => "$addToSet",
         AstAccumulatorOperator.Avg => "$avg",
         AstAccumulatorOperator.First => "$first",
         AstAccumulatorOperator.Last => "$last",
         AstAccumulatorOperator.Max => "$max",
         AstAccumulatorOperator.MergeObjects => "$mergeObjects",
         AstAccumulatorOperator.Min => "$min",
         AstAccumulatorOperator.Push => "$push",
         AstAccumulatorOperator.StdDevPop => "$stdDevPop",
         AstAccumulatorOperator.StdDevSamp => "$stdDevSamp",
         AstAccumulatorOperator.Sum => "$sum",
         _ => throw new InvalidOperationException($"Unexpected accumulator operator: {@operator}.")
     });
Ejemplo n.º 3
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        public static AstAccumulatorField AccumulatorField(string name, AstAccumulatorOperator @operator, AstExpression arg)
        {
            var value = new AstAccumulatorExpression(@operator, arg);

            return(new AstAccumulatorField(name, value));
        }
Ejemplo n.º 4
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 public static AstAccumulatorExpression AccumulatorExpression(AstAccumulatorOperator @operator, AstExpression arg)
 {
     return(new AstAccumulatorExpression(@operator, arg));
 }
Ejemplo n.º 5
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 public AstAccumulatorExpression(AstAccumulatorOperator @operator, AstExpression arg)
 {
     _operator = @operator;
     _arg      = Ensure.IsNotNull(arg, nameof(arg));
 }