Ben Barnes
Software Engineer
Data61 | CSIRO
location_on Australia
Member since 1 year
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Ben Barnes
Specialises In (based on submitted proposals)
I started my career in hardware and robotics, but was swiftly lured away by functional programming. Nowadays I assemble functions into larger functions for Data61.
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Failing gracefully with EitherT
30 Mins
Talk
Intermediate
Handling errors in a principled manner is an important aspect of writing production code. Drawing on our experience of writing production systems in Haskell, we believe that for a large class of problems, using the EitherT monad transformer is a simple and effective pattern to handle errors. We suggest that often, several mechanisms for error handling appear in code bases (including exceptions and the use of free monads) and that it will be of interest to intermediate Haskellers to see a principled approach that only uses EitherT to accomplish this.
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