haskell-engineering

To enforce purity boundaries in Haskell, you explicitly separate IO operations from pure logic, managing effects through clear module structures. This prevents side effects from leaking into domain models and core libraries.

Type-driven development in Haskell uses type-first thinking and totality-by-default to prevent partial patterns and runtime errors. By designing algebraic data types and smart constructors, you ensure exhaustive pattern matching and explicit error handling.

Structuring a Haskell project with hexagonal architecture involves isolating domain logic using Ports and Adapters patterns. This design guides ADT creation and pure module separation, ensuring maintainable and robust infrastructure services.

Type-driven Haskell development requires operational strategies for testing that validate purity boundaries and explicit error handling. These strategies ensure robust domain models and reliable performance across core libraries and services.

Use smart constructors in Haskell domain modeling when you need to enforce invariants and guarantee valid state creation. They support type-driven development by preventing invalid data from entering pure domain logic.