C# draft of Azure Pipelines conditions with ExpressionEngine

AzurePipelines_Conditions.cs

using System;
using System.Collections.Immutable;
using System.Linq;
using ExpressionEngine;

class Program
{
    static void Main(string[] args)
    {
        var context = new Context();
        context.SetFunction("always", () => true);
        context.SetFunction("eq", x => x[0].Equals(x[1]));
        context.SetFunction("ne", x => !x[0].Equals(x[1]));
        context.SetFunction("and", x =>
            ImmutableArray.Create<object>(x).Aggregate<bool, object>(
                true, (res, next) => res = res && (bool)next));
        context.SetFunction("or", x =>
            ImmutableArray.Create<object>(x).Aggregate<bool, object>(
                true, (res, next) => res = res || (bool)next)); 
        var result = context.EvaluateAs<bool>("and(always(), or(ne(1, 2), eq(2, 1)))");
        
        Console.WriteLine(result); // outcome: True
    }
}