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implab » ImplabNet
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fixed promise chaining behavior, the error handler doesn't handle result or cancellation handlers exceptions these exceptions are propagated to the next handlers.
fixed promise chaining behavior, the error handler doesn't handle result or cancellation handlers exceptions these exceptions are propagated to the next handlers.
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ActionChainTask.cs
34 lines | 1.5 KiB | text/x-csharp | CSharpLexer
/ Implab / ActionChainTask.cs
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using System;
namespace Implab {
public class ActionChainTask : ActionChainTaskBase, IDeferred {
readonly Func<IPromise> m_task;
/// <summary>
/// Initializes a new instance of the <see cref="Implab.ActionChainTask"/> class.
/// </summary>
/// <param name="task">The operation which will be performed when the <see cref="Resolve()"/> is called.</param>
/// <param name="error">The error handler which will invoke when the <see cref="Reject(Exception)"/> is called or when the task fails with an error.</param>
/// <param name="cancel">The cancellation handler.</param>
/// <param name="autoCancellable">If set to <c>true</c> will automatically accept
/// all cancel requests before the task is started with <see cref="Resolve()"/>,
/// after that all requests are directed to the task.</param>
public ActionChainTask(Func<IPromise> task, Func<Exception, IPromise> error, Func<Exception, IPromise> cancel, bool autoCancellable) : base(error,cancel, autoCancellable) {
m_task = task;
}
public void Resolve() {
if (m_task != null && LockCancelation()) {
try {
var p = m_task();
p.On(SetResult, HandleErrorInternal, HandleCancelInternal);
CancellationRequested(p.Cancel);
} catch(Exception err) {
SetErrorInternal(err);
}
}
}
}
}