75 lines
2.9 KiB
C#
75 lines
2.9 KiB
C#
using System;
|
|
using System.Collections.Generic;
|
|
using System.Collections.Immutable;
|
|
using System.Threading.Tasks;
|
|
|
|
namespace Discord
|
|
{
|
|
internal class AsyncEvent<T>
|
|
{
|
|
private readonly object _subLock = new object();
|
|
internal ImmutableArray<T> _subscriptions;
|
|
|
|
public IReadOnlyList<T> Subscriptions => _subscriptions;
|
|
|
|
public AsyncEvent()
|
|
{
|
|
_subscriptions = ImmutableArray.Create<T>();
|
|
}
|
|
|
|
public void Add(T subscriber)
|
|
{
|
|
lock (_subLock)
|
|
_subscriptions = _subscriptions.Add(subscriber);
|
|
}
|
|
public void Remove(T subscriber)
|
|
{
|
|
lock (_subLock)
|
|
_subscriptions = _subscriptions.Remove(subscriber);
|
|
}
|
|
}
|
|
|
|
internal static class EventExtensions
|
|
{
|
|
public static async Task InvokeAsync(this AsyncEvent<Func<Task>> eventHandler)
|
|
{
|
|
var subscribers = eventHandler.Subscriptions;
|
|
if (subscribers.Count > 0)
|
|
{
|
|
for (int i = 0; i < subscribers.Count; i++)
|
|
await subscribers[i].Invoke().ConfigureAwait(false);
|
|
}
|
|
}
|
|
public static async Task InvokeAsync<T>(this AsyncEvent<Func<T, Task>> eventHandler, T arg)
|
|
{
|
|
var subscribers = eventHandler.Subscriptions;
|
|
for (int i = 0; i < subscribers.Count; i++)
|
|
await subscribers[i].Invoke(arg).ConfigureAwait(false);
|
|
}
|
|
public static async Task InvokeAsync<T1, T2>(this AsyncEvent<Func<T1, T2, Task>> eventHandler, T1 arg1, T2 arg2)
|
|
{
|
|
var subscribers = eventHandler.Subscriptions;
|
|
for (int i = 0; i < subscribers.Count; i++)
|
|
await subscribers[i].Invoke(arg1, arg2).ConfigureAwait(false);
|
|
}
|
|
public static async Task InvokeAsync<T1, T2, T3>(this AsyncEvent<Func<T1, T2, T3, Task>> eventHandler, T1 arg1, T2 arg2, T3 arg3)
|
|
{
|
|
var subscribers = eventHandler.Subscriptions;
|
|
for (int i = 0; i < subscribers.Count; i++)
|
|
await subscribers[i].Invoke(arg1, arg2, arg3).ConfigureAwait(false);
|
|
}
|
|
public static async Task InvokeAsync<T1, T2, T3, T4>(this AsyncEvent<Func<T1, T2, T3, T4, Task>> eventHandler, T1 arg1, T2 arg2, T3 arg3, T4 arg4)
|
|
{
|
|
var subscribers = eventHandler.Subscriptions;
|
|
for (int i = 0; i < subscribers.Count; i++)
|
|
await subscribers[i].Invoke(arg1, arg2, arg3, arg4).ConfigureAwait(false);
|
|
}
|
|
public static async Task InvokeAsync<T1, T2, T3, T4, T5>(this AsyncEvent<Func<T1, T2, T3, T4, T5, Task>> eventHandler, T1 arg1, T2 arg2, T3 arg3, T4 arg4, T5 arg5)
|
|
{
|
|
var subscribers = eventHandler.Subscriptions;
|
|
for (int i = 0; i < subscribers.Count; i++)
|
|
await subscribers[i].Invoke(arg1, arg2, arg3, arg4, arg5).ConfigureAwait(false);
|
|
}
|
|
}
|
|
}
|