Daniel Grunwald
15 years ago
43 changed files with 242 additions and 78 deletions
@ -0,0 +1,58 @@
@@ -0,0 +1,58 @@
|
||||
// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
|
||||
// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
|
||||
|
||||
using System; |
||||
using System.Collections.Generic; |
||||
using System.Linq; |
||||
|
||||
internal static class DotNet35Compat |
||||
{ |
||||
public static string StringJoin<T>(string separator, IEnumerable<T> elements) |
||||
{ |
||||
#if DOTNET35
|
||||
return string.Join(separator, elements.Select(e => e != null ? e.ToString() : null).ToArray()); |
||||
#else
|
||||
return string.Join(separator, elements); |
||||
#endif
|
||||
} |
||||
|
||||
public static IEnumerable<U> SafeCast<T, U>(this IEnumerable<T> elements) where T : U |
||||
{ |
||||
#if DOTNET35
|
||||
foreach (T item in elements) |
||||
yield return item; |
||||
#else
|
||||
return elements; |
||||
#endif
|
||||
} |
||||
|
||||
public static Predicate<U> SafeCast<T, U>(this Predicate<T> predicate) where U : T |
||||
{ |
||||
#if DOTNET35
|
||||
return e => predicate(e); |
||||
#else
|
||||
return predicate; |
||||
#endif
|
||||
} |
||||
|
||||
#if DOTNET35
|
||||
public static IEnumerable<R> Zip<T1, T2, R>(this IEnumerable<T1> input1, IEnumerable<T2> input2, Func<T1, T2, R> f) |
||||
{ |
||||
using (var e1 = input1.GetEnumerator()) |
||||
using (var e2 = input2.GetEnumerator()) |
||||
while (e1.MoveNext() && e2.MoveNext()) |
||||
yield return f(e1.Current, e2.Current); |
||||
} |
||||
#endif
|
||||
} |
||||
|
||||
#if DOTNET35
|
||||
namespace System.Diagnostics.Contracts { } |
||||
namespace System.Threading |
||||
{ |
||||
internal struct CancellationToken |
||||
{ |
||||
public void ThrowIfCancellationRequested() {} |
||||
} |
||||
} |
||||
#endif
|
||||
Loading…
Reference in new issue