DelegatePredicate.cs

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using System;
 
namespace java.util.function
{
 
    public class DelegatePredicate<TArg> : Predicate
    {
 
        readonly Func<TArg, bool> _func;
 
        public DelegatePredicate(Func<TArg, bool> func)
        {
            _func = func ?? throw new ArgumentNullException(nameof(func));
        }
 
        public Predicate and(Predicate other)
        {
            return Predicate.__DefaultMethods.and(this, other);
        }
 
        public Predicate negate()
        {
            return Predicate.__DefaultMethods.negate(this);
        }
 
        public Predicate or(Predicate other)
        {
            return Predicate.__DefaultMethods.or(this, other);
        }
 
        public bool test(object t)
        {
            return _func((TArg)t);
        }
 
    }
 
}