Camera Information System
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 

24 lines
848 B

using EC.Helper.RabbitFunc.Expressions;
using EC.Helper.RabbitFunc.Runtime;
namespace EC.Helper.RabbitFunc.Extern;
[ExternLambda]
internal class RoundLambdaExpression : SystemLambdaExpression
{
public RoundLambdaExpression()
: base(typeof(Math).GetMethod(nameof(Math.Round), new Type[] { typeof(double), typeof(int) }), "round", new BodyExpression(),
Expression.Parameter(typeof(double), "value"),
Expression.Parameter(typeof(double), "digits"))
{ }
private class BodyExpression : Expression
{
public override object Eval(RuntimeContext context)
{
var value = ParameterExpression.Access<double>(context, "value");
var digits = (int)ParameterExpression.Access<double>(context, "digits");
return Math.Round(value, digits);
}
}
}