68 lines
2.4 KiB
C#
68 lines
2.4 KiB
C#
using System;
|
|
using System.Collections.Generic;
|
|
using System.Linq;
|
|
|
|
namespace BITKit
|
|
{
|
|
public static class FuncExtensions
|
|
{
|
|
public static IEnumerable<Func<T>> CastAsFunc<T>(this Func<T> self)
|
|
{
|
|
var value = self;
|
|
return value is null? Array.Empty<Func<T>>() : self?.GetInvocationList().Cast<Func<T>>();
|
|
}
|
|
public static IEnumerable<Func<T0, T1>> CastAsFunc<T0, T1>(this Func<T0, T1> self)
|
|
{
|
|
return self is null ? Array.Empty<Func<T0,T1>>() : self?.GetInvocationList().Cast<Func<T0, T1>>();
|
|
}
|
|
|
|
public static IEnumerable<Func<T0, T1, T2>> CastAsFunc<T0, T1, T2>(this Func<T0, T1, T2> self)
|
|
{
|
|
if (self is null)
|
|
{
|
|
yield break;
|
|
}
|
|
|
|
Delegate[] invocationList = self.GetInvocationList();
|
|
|
|
// 遍历委托数组，将每个委托转换为 Func<T0, T1, T2> 并返回
|
|
foreach (var delegateItem in invocationList)
|
|
{
|
|
if (delegateItem is not null && delegateItem is Func<T0, T1, T2> func)
|
|
{
|
|
yield return func;
|
|
}
|
|
}
|
|
}
|
|
|
|
public static IEnumerable<Func<T0, T1, T2, T3>> CastAsFunc<T0, T1, T2, T3>(this Func<T0, T1, T2, T3> self)
|
|
{
|
|
return self?.GetInvocationList().Cast<Func<T0, T1, T2, T3>>();
|
|
}
|
|
|
|
public static IEnumerable<Func<T0, T1, T2, T3, T4>> CastAsFunc<T0, T1, T2, T3, T4>(
|
|
this Func<T0, T1, T2, T3, T4> self)
|
|
{
|
|
return self?.GetInvocationList().Cast<Func<T0, T1, T2, T3, T4>>();
|
|
}
|
|
|
|
public static IEnumerable<Func<T0, T1, T2, T3, T4, T5>> CastAsFunc<T0, T1, T2, T3, T4, T5>(
|
|
this Func<T0, T1, T2, T3, T4, T5> self)
|
|
{
|
|
return self?.GetInvocationList().Cast<Func<T0, T1, T2, T3, T4, T5>>();
|
|
}
|
|
|
|
public static IEnumerable<Func<T0, T1, T2, T3, T4, T5, T6>> CastAsFunc<T0, T1, T2, T3, T4, T5, T6>(
|
|
this Func<T0, T1, T2, T3, T4, T5, T6> self)
|
|
{
|
|
return self?.GetInvocationList().Cast<Func<T0, T1, T2, T3, T4, T5, T6>>();
|
|
}
|
|
|
|
public static IEnumerable<Func<T0, T1, T2, T3, T4, T5, T6, T7>> CastAsFunc<T0, T1, T2, T3, T4, T5, T6, T7>(
|
|
this Func<T0, T1, T2, T3, T4, T5, T6, T7> self)
|
|
{
|
|
return self?.GetInvocationList().Cast<Func<T0, T1, T2, T3, T4, T5, T6, T7>>();
|
|
}
|
|
}
|
|
}
|