// C# Eval Expression

// Doc: https://eval-expression.net/my-first-evaluation

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// @nuget: Z.Expressions.Eval

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/*

## Evaluate a C# expression with a return type

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In the last two examples, we learned how to execute code dynamically and use variables in our expressions.

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The last remaining part is how to specify a return type. If no return type is specified, the value is of type `object`.

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The `Execute<TReturn>` method takes as the generic type the type to return.

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In this example, we will continue with our getting started example by using our `list` and `greaterThan` variables but this time, specify the `List<int>` return type.

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Did you spot an error in this example? The expression should return an `IEnumerable<int>` and not a `List<int>`! However, our library is smart enough and makes your life easy by automatically calling the `ToList` method to return the right type. That is one of the many advantages of using our library.

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See more: https://eval-expression.net/my-first-evaluation

*/

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using System;

using System.Dynamic;

using System.Collections.Generic;

using Z.Expressions;

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public class Program

{

    public static void Main()

    {

        var list = new List<int>() { 1, 2, 3, 4 };

        var greaterThan = 2;

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        list = Eval.Execute<List<int>>("list.Where(x => x > greaterThan)", new { list, greaterThan });

        FiddleHelper.WriteTable(list);

    }

}