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The talk will focus on how to restrict effects performed by monadic computations using type classes. You will explore the pros and cons of this approach in relation to its alternatives as well as how to solve several common issues that arise, such as the problem of quadratic number of instance definitions.
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Controlling monadic effects with type classes
Andrzej Rybczak is a professional Haskell developer with 10 years of experience and author/contributor of multiple open source Haskell libraries used in production (notable examples: optics, log-base, hpqtypes). He has also contributed patches to GHC. His hobbies include walking among nature and dancing.