Implementing Type-Safe Pattern Matching in Jule
Learn how to use Jule's type-safe match expressions to replace complex conditional logic with exhaustive, compile-time checked patterns and guards.
Loading…
ReadMeFeed / Community knowledge
#pattern-matching
Real questions. Useful conversations. Find the people who know your stack.
Making Invalid States Unrepresentable with Gleam's Custom Types
Gleam's custom types make invalid states unrepresentable by forcing exhaustive pattern matching, turning runtime bugs into compile-time errors.
gleamFlattening Error Paths: When Elixir's `with` Beats Nested `case`
Elixir's `with` flattens chained pattern matches, but silent short-circuiting can hide partial successes. Learn when to use it over nested `case` and how to test both paths.
elixirReplacing Stringly Typed Status Fields with Custom Types in Gleam
A practical look at using Gleam custom types and exhaustive pattern matching to replace fragile string status fields, with a worked example and honest trade-offs.
Why OCaml GADTs Matter: A Practical Guide to Type‑Safe Pattern Matching
OCaml GADTs let you encode type invariants directly in the type system, turning runtime pattern‑matching errors into compile‑time guarantees. This guide walks through the syntax, a typed expression tree example, trade‑offs, and practical adoption tips.
ocamlMake Illegal Payment States Unrepresentable with Haskell ADTs
Use Haskell sum types and pattern matching to make illegal payment states unrepresentable. A concrete PaymentMethod ADT shows how the compiler enforces exhaustive handling and self-documenting records, with trade-offs at serialization boundaries.
haskellGleam Option Types: Model Absence and Verify Exhaustive Matches
Build a small Gleam module that models a missing value with Option, run it, and confirm the compiler rejects a match that forgets None.
Modeling Domain Logic with Scala Case Classes and Sealed Traits
Stop relying on fragile if/else blocks for domain logic. Learn how to combine Scala's sealed traits and case classes to create type-safe, exhaustive data models.
scalaSafer Java Interop in Ceylon with Union Types and Match
Learn how Ceylon’s union types and match expressions let you handle Java nulls safely at compile time, reducing runtime surprises when calling existing Java libraries.
ceylon
jule