summaryrefslogtreecommitdiff
path: root/Xamarin.Forms.Platform.WinRT/TaskExtensions.cs
diff options
context:
space:
mode:
Diffstat (limited to 'Xamarin.Forms.Platform.WinRT/TaskExtensions.cs')
-rw-r--r--Xamarin.Forms.Platform.WinRT/TaskExtensions.cs40
1 files changed, 40 insertions, 0 deletions
diff --git a/Xamarin.Forms.Platform.WinRT/TaskExtensions.cs b/Xamarin.Forms.Platform.WinRT/TaskExtensions.cs
new file mode 100644
index 00000000..332e8a64
--- /dev/null
+++ b/Xamarin.Forms.Platform.WinRT/TaskExtensions.cs
@@ -0,0 +1,40 @@
+´╗┐using System;
+using System.Threading;
+using System.Threading.Tasks;
+using Windows.Foundation;
+
+#if WINDOWS_UWP
+
+namespace Xamarin.Forms.Platform.UWP
+#else
+
+namespace Xamarin.Forms.Platform.WinRT
+#endif
+{
+ internal static class TaskExtensions
+ {
+ public static void WatchForError(this IAsyncAction self)
+ {
+ self.AsTask().WatchForError();
+ }
+
+ public static void WatchForError<T>(this IAsyncOperation<T> self)
+ {
+ self.AsTask().WatchForError();
+ }
+
+ public static void WatchForError(this Task self)
+ {
+ SynchronizationContext context = SynchronizationContext.Current;
+ if (context == null)
+ return;
+
+ self.ContinueWith(t =>
+ {
+ Exception exception = t.Exception.InnerExceptions.Count > 1 ? t.Exception : t.Exception.InnerException;
+
+ context.Post(e => { throw (Exception)e; }, exception);
+ }, CancellationToken.None, TaskContinuationOptions.OnlyOnFaulted, TaskScheduler.Default);
+ }
+ }
+} \ No newline at end of file