135 lines
4.9 KiB
Plaintext
135 lines
4.9 KiB
Plaintext
// Licensed to the .NET Foundation under one or more agreements.
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// The .NET Foundation licenses this file to you under the MIT License.
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// See the LICENSE file in the project root for more information.
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<#@ template debug="false" hostspecific="false" language="C#" #>
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<#@ assembly name="System.Core" #>
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<#@ import namespace="System.Linq" #>
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<#@ import namespace="System.Text" #>
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<#@ import namespace="System.Collections.Generic" #>
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<#@ output extension=".cs" #>
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// This code was generated by a T4 template at <#=DateTime.Now#>.
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namespace System.Reactive.Linq
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{
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public static partial class Observable
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{
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<#
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Func<string, string> toUpper = s => char.ToUpper(s[0]) + s.Substring(1);
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string[] ordinals = new[] { "first", "second", "third", "fourth", "fifth", "sixth", "seventh", "eighth", "ninth", "tenth", "eleventh", "twelfth", "thirteenth", "fourteenth", "fifteenth", "sixteenth" };
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for (int i = 3; i <= 16; i++)
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{
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var parameters = string.Join(", ", Enumerable.Range(1, i).Select(j => "IObservable<TSource" + j + "> source" + j));
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var genArgs = string.Join(", ", Enumerable.Range(1, i).Select(j => "TSource" + j));
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var sources = string.Join(", ", Enumerable.Range(1, i).Select(j => "source" + j));
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var paramRefs = string.Join(" or ", Enumerable.Range(1, i).Select(j => "<paramref name=\"source" + j + "\"/>"));
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#>
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/// <summary>
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/// Merges the specified observable sequences into one observable sequence by using the selector function whenever any of the observable sequences produces an element.
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/// </summary>
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<#
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for (int j = 0; j < i; j++)
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{
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#>
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/// <typeparam name="TSource<#=j + 1#>">The type of the elements in the <#=ordinals[j]#> source sequence.</typeparam>
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<#
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}
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#>
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/// <typeparam name="TResult">The type of the elements in the result sequence, returned by the selector function.</typeparam>
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<#
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for (int j = 0; j < i; j++)
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{
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#>
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/// <param name="source<#=j + 1#>"><#=toUpper(ordinals[j])#> observable source.</param>
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<#
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}
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#>
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/// <param name="resultSelector">Function to invoke whenever any of the sources produces an element.</param>
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/// <returns>An observable sequence containing the result of combining elements of the sources using the specified result selector function.</returns>
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/// <exception cref="ArgumentNullException"><#=paramRefs#> or <paramref name="resultSelector"/> is null.</exception>
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/// <remarks>If a non-empty source completes, its very last value will be used for creating subsequent combinations until all sources terminate.</remarks>
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public static IObservable<TResult> CombineLatest<<#=genArgs#>, TResult>(this <#=parameters#>, Func<<#=genArgs#>, TResult> resultSelector)
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{
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<#
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for (int j = 0; j < i; j++)
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{
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#>
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if (source<#=j + 1#> == null)
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{
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throw new ArgumentNullException(nameof(source<#=j + 1#>));
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}
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<#
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}
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#>
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if (resultSelector == null)
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{
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throw new ArgumentNullException(nameof(resultSelector));
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}
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return s_impl.CombineLatest(<#=sources#>, resultSelector);
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}
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<#
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}
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#>
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}
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public static partial class ObservableEx
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{
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<#
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for (int i = 2; i <= 8; i++)
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{
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var parameters = string.Join(", ", Enumerable.Range(1, i).Select(j => "IObservable<T" + toUpper(ordinals[j - 1]) + "> " + ordinals[j - 1]));
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var genArgs = string.Join(", ", Enumerable.Range(1, i).Select(j => "T" + toUpper(ordinals[j - 1])));
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var sources = string.Join(", ", Enumerable.Range(1, i).Select(j => ordinals[j - 1]));
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var paramRefs = string.Join(" or ", Enumerable.Range(1, i).Select(j => "<paramref name=\"" + ordinals[j - 1] + "\"/>"));
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var tuple = "(" + string.Join(", ", Enumerable.Range(1, i).Select(j => "T" + toUpper(ordinals[j - 1]) + " " + toUpper(ordinals[j - 1]))) + ")";
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var vals = string.Join(", ", Enumerable.Range(1, i).Select(j => "t" + j));
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#>
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/// <summary>
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/// Merges the specified observable sequences into one observable sequence of tuple values whenever any of the observable sequences produces an element.
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/// </summary>
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<#
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for (int j = 0; j < i; j++)
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{
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#>
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/// <typeparam name="T<#=toUpper(ordinals[j])#>">The type of the elements in the <#=ordinals[j]#> source sequence.</typeparam>
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<#
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}
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#>
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<#
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for (int j = 0; j < i; j++)
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{
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#>
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/// <param name="<#=ordinals[j]#>"><#=toUpper(ordinals[j])#> observable source.</param>
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<#
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}
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#>
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/// <returns>An observable sequence containing the result of combining elements of the sources using tuple values.</returns>
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/// <exception cref="ArgumentNullException"><#=paramRefs#> is null.</exception>
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public static IObservable<<#=tuple#>> CombineLatest<<#=genArgs#>>(this <#=parameters#>)
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{
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<#
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for (int j = 0; j < i; j++)
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{
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#>
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if (<#=ordinals[j]#> == null)
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throw new ArgumentNullException(nameof(<#=ordinals[j]#>));
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<#
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}
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#>
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return s_impl.CombineLatest(<#=sources#>);
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}
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<#
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}
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#>
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}
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}
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