public override bool TryEvaluate(IValue lhs, IValue rhs, out IValue result)
{
if (!(lhs.ValueKind == JsonValueKind.Number && rhs.ValueKind == JsonValueKind.Number))
{
result = JsonConstants.Null;
return(false);
}
Decimal decVal1;
double dblVal1;
Decimal decVal2;
double dblVal2;
if (lhs.TryGetDecimal(out decVal1) && rhs.TryGetDecimal(out decVal2))
{
if (decVal2 == 0)
{
result = JsonConstants.Null;
return(false);
}
Decimal val = decVal1 % decVal2;
result = new DecimalValue(val);
return(true);
}
else if (lhs.TryGetDouble(out dblVal1) && rhs.TryGetDouble(out dblVal2))
{
if (dblVal2 == 0)
{
result = JsonConstants.Null;
return(false);
}
double val = dblVal1 % dblVal2;
result = new DoubleValue(val);
return(true);
}
else
{
result = JsonConstants.Null;
return(false);
}
}
public override bool TryEvaluate(IList <IValue> args,
out IValue result)
{
Debug.Assert(this.Arity.HasValue && args.Count == this.Arity !.Value);
var arg0 = args[0];
switch (arg0.ValueKind)
{
case JsonValueKind.Number:
result = arg0;
return(true);
case JsonValueKind.String:
{
var s = arg0.GetString();
Decimal dec;
double dbl;
if (Decimal.TryParse(s, out dec))
{
result = new DecimalValue(dec);
return(true);
}
else if (Double.TryParse(s, out dbl))
{
result = new DoubleValue(dbl);
return(true);
}
else
{
result = JsonConstants.Null;
return(false);
}
}
default:
result = JsonConstants.Null;
return(false);
}
}
public override bool TryEvaluate(IList <IValue> args,
out IValue result)
{
Debug.Assert(this.Arity.HasValue && args.Count == this.Arity !.Value);
var arg0 = args[0];
if (arg0.ValueKind != JsonValueKind.Array || arg0.GetArrayLength() == 0)
{
result = JsonConstants.Null;
return(false);
}
IValue sum;
if (!SumFunction.Instance.TryEvaluate(args, out sum))
{
result = JsonConstants.Null;
return(false);
}
Decimal decVal;
double dblVal;
if (sum.TryGetDecimal(out decVal))
{
result = new DecimalValue(decVal / arg0.GetArrayLength());
return(true);
}
else if (sum.TryGetDouble(out dblVal))
{
result = new DoubleValue(dblVal / arg0.GetArrayLength());
return(true);
}
else
{
result = JsonConstants.Null;
return(false);
}
}
public override bool TryEvaluate(IList <IValue> args,
out IValue result)
{
Debug.Assert(this.Arity.HasValue && args.Count == this.Arity !.Value);
var arg0 = args[0];
if (arg0.ValueKind != JsonValueKind.Array || arg0.GetArrayLength() == 0)
{
result = JsonConstants.Null;
return(false);
}
foreach (var item in arg0.EnumerateArray())
{
if (item.ValueKind != JsonValueKind.Number)
{
result = JsonConstants.Null;
return(false);
}
}
double prod = 1;
foreach (var item in arg0.EnumerateArray())
{
double dbl;
if (!item.TryGetDouble(out dbl))
{
result = JsonConstants.Null;
return(false);
}
prod *= dbl;
}
result = new DoubleValue(prod);
return(true);
}