ericrey85

public class AsyncLazyPipeline<TSource>
{
    private Func<Task<TSource>> Expression { get; }

    public AsyncLazyPipeline(Func<Task<TSource>> expression)
    {
        Expression = expression;
    }

    public Task<TSource> Flatten() => Expression();

afreeland

public class ExpressionBuilder
    {
        // Define some of our default filtering options
        private static MethodInfo containsMethod = typeof(string).GetMethod("Contains", new[] { typeof(string) });
        private static MethodInfo startsWithMethod = typeof(string).GetMethod("StartsWith", new[] { typeof(string) });
        private static MethodInfo endsWithMethod = typeof(string).GetMethod("EndsWith", new[] { typeof(string) });

        public static Expression<Func<T, bool>> GetExpression<T>(List<GridHelper.Filter> filters)
        {
            // No filters passed in #KickIT

niik

/*
 * Original version by Stephen Toub and Shawn Farkas.
 * Random pool and thread safety added by Markus Olsson (freakcode.com).
 * 
 * Original source: http://msdn.microsoft.com/en-us/magazine/cc163367.aspx
 * 
 * Some benchmarks (2009-03-18):
 * 
 *  Results produced by calling Next() 1 000 000 times on my machine (dual core 3Ghz)
 *