Snippets tagged error handling
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A failed attempt at evaluating sequence items in terms of a try-with block
A broken code example demonstrating how it's you can't catch a single throwing enumeration and continue with F#'s IEnumerable.
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Like the snippet!Posted: 14 years ago by Rick Minerich
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Async workflow with asynchronous "finally" clause
The F# Core library offers async.TryFinally which where a synchronous compensation function (of type unit -> unit) is run after an error or cancellation. However, it offers no way to start an asynchronous compensation. The TryFinallyAsync method defined below offers a way around this.
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Like the snippet!Posted: 9 years ago by Anton Tcholakov
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Capture the rest of sequence on error
Computation expression that automatically captures the rest of the sequence that you are iterating over using a "for" loop so that the exception handler can do something clever with it.
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Like the snippet!Posted: 3 years ago by Tomas Petricek
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"Guard" helper function for railway error handling
Defines a "guard" function for railway-style error handing which allows you to concisely verify a condition when handling errors using Choice<'T, 'Error>. It checks the condition and if it is false, returns Choice2Of2 with the specified error value. If the condition is true then it returns Choice1Of2 (). Loosely inspired by Swift 2.0's guard keyword.
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Like the snippet!Posted: 10 years ago by Anton Tcholakov
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Mailbox processor that won't die on errors
Sometimes mailboxprocessor may corrupt on errors and the state is not clear. Sometimes you don't care about the existing queue, but you want to have always a processor listening.
1 people like this
Like the snippet!Posted: 6 years ago by Tuomas Hietanen