Supplier<TResult>
Represents typed function pointer implementing ISupplier<T>.
using DotNext.Runtime.CompilerServices;
using System;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
namespace DotNext
{
[StructLayout(LayoutKind.Auto)]
[NullableContext(1)]
[Nullable(0)]
[CLSCompliant(false)]
public readonly struct Supplier<[Nullable(2)] TResult> : ISupplier<TResult>, IFunctional<Func<TResult>>
{
private readonly IntPtr ptr;
public unsafe bool IsEmpty => ptr == (IntPtr)(void*)null;
public unsafe Supplier([Nullable(new byte[] {
0,
1
})] IntPtr ptr)
{
if (ptr == (IntPtr)(void*)null)
throw new ArgumentNullException("ptr");
this.ptr = ptr;
}
TResult ISupplier<TResult>.Invoke()
{
return (TResult);
}
public Func<TResult> ToDelegate()
{
return DelegateHelpers.CreateDelegate<TResult>(ptr);
}
public unsafe override string ToString()
{
return new IntPtr((void*)(long)ptr).ToString("X");
}
public static implicit operator Supplier<TResult>([Nullable(new byte[] {
0,
1
})] IntPtr ptr)
{
return new Supplier<TResult>(ptr);
}
public static explicit operator Func<TResult>([Nullable(new byte[] {
0,
1
})] Supplier<TResult> supplier)
{
return supplier.ToDelegate();
}
}
}