UniTaskXR/Runtime/UniTaskExtensions.Shorthand.tt

<#@ template debug="false" hostspecific="false" language="C#" #>
<#@ assembly name="System.Core" #>
<#@ import namespace="System.Linq" #>
<#@ import namespace="System.Text" #>
<#@ import namespace="System.Collections.Generic" #>
<#@ output extension=".cs" #>
#pragma warning disable CS1591 // Missing XML comment for publicly visible type or member
using System.Collections.Generic;

namespace Cysharp.Threading.Tasks
{
    public static partial class UniTaskExtensions
    {
        // shorthand of WhenAll
    
        public static UniTask.Awaiter GetAwaiter(this UniTask[] tasks)
        {
            return UniTask.WhenAll(tasks).GetAwaiter();
        }

        public static UniTask.Awaiter GetAwaiter(this IEnumerable<UniTask> tasks)
        {
            return UniTask.WhenAll(tasks).GetAwaiter();
        }

        public static UniTask<T[]>.Awaiter GetAwaiter<T>(this UniTask<T>[] tasks)
        {
            return UniTask.WhenAll(tasks).GetAwaiter();
        }

        public static UniTask<T[]>.Awaiter GetAwaiter<T>(this IEnumerable<UniTask<T>> tasks)
        {
            return UniTask.WhenAll(tasks).GetAwaiter();
        }

<# for(var i = 2; i <= 15; i++ ) {
    var range = Enumerable.Range(1, i);
    var t = string.Join(", ", range.Select(x => "T" + x));
    var args = string.Join(", ", range.Select(x => $"UniTask<T{x}> task{x}"));
    var titems = string.Join(", ", range.Select(x => $"tasks.Item{x}"));
#>
        public static UniTask<(<#= t #>)>.Awaiter GetAwaiter<<#= t #>>(this (<#= args #>) tasks)
        {
            return UniTask.WhenAll(<#= titems #>).GetAwaiter();
        }

<# } #>

<# for(var i = 2; i <= 15; i++ ) {
    var range = Enumerable.Range(1, i);
    var args = string.Join(", ", range.Select(x => $"UniTask task{x}"));
    var titems = string.Join(", ", range.Select(x => $"tasks.Item{x}"));
#>

        public static UniTask.Awaiter GetAwaiter(this (<#= args #>) tasks)
        {
            return UniTask.WhenAll(<#= titems #>).GetAwaiter();
        }

<# } #>

    }
}