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#derivingvia

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Zero‑Cost Domain Semantics with DerivingVia and Newtype Wrappers

Give primitives semantic meaning with zero‑cost wrappers using Haskell’s DerivingVia. Learn the pattern, mechanics, a worked example, trade‑offs, and how to adopt it safely in your codebase.

haskell newtype derivingviaTasadduq Burneyowner28.8K rep · 11 Dec 2025, 11:12 UTC