Snippets tagged exceptions
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Raising arbitrary exceptions with failwith-style syntax
failwith/failwithf are a useful operators, but they only raise exceptions of type SystemException. Here's a simple way to generalize them.
2 people like this
Like the snippet!Posted: 12 years ago by Eirik Tsarpalis
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Faster exception handling with Async.Raise
Code by me and Nick Palladinos.
2 people like this
Like the snippet!Posted: 12 years ago by Eirik Tsarpalis
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Retry loop, no tricks
Less-nonsense 8-line retry function that will retry a function a specified up to `maxRetries` times while it throws. After the retries, any remaining exception is allowed to propagate. Accepts a before function to allow you to wait/report when a retry is taking place
2 people like this
Like the snippet!Posted: 10 years ago by Ruben Bartelink
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Extract info from F# Compiler Service exceptions
When you get an exception from the F# Compiler Service, it usually does not print any useful information. But you can look at the private fields of the exception and get some more useful things out of it...
0 people like this
Like the snippet!Posted: 9 years ago by Tomas Petricek
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A Continuation monad with Symbolic Stacktraces
A first attempt at implementing symbolic exception stacktraces in computation expressions using reflection.
5 people like this
Like the snippet!Posted: 8 years ago by Eirik Tsarpalis
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Simple exception analysis
A simple script to list the exceptions that can be thrown during the method invocation (both caught and uncaught).
5 people like this
Like the snippet!Posted: 12 years ago by Natallie Baikevich
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Raise an ArgumentException
Convenience function to easily throw an argument exception with a helpful string description. Looks simple, but was hard to figure out.
1 people like this
Like the snippet!Posted: 10 years ago by Wallace Kelly
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Attempt to implement a tail calling exception handling combinator
See also https://fslang.uservoice.com/forums/245727-f-language/suggestions/6536829-implement-ocaml-s-new-match-exception-syntax
3 people like this
Like the snippet!Posted: 9 years ago by Eirik Tsarpalis
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Deferred clean-up code (Go/Swift-style)
Go and Swift have a dedicated defer keyword which allows the programmer to specify code which should run when leaving the current scope, irrespective of errors. F# supports a similar pattern with IDisposable and the use keyword, but this requires either defining a class definition or object expression and the extra syntax can make the code less expressive. This snippet defines a simple helper function called "defer" to remedy the situation.
2 people like this
Like the snippet!Posted: 9 years ago by Anton Tcholakov