swift-api-design-guidelines

Swift API design guidelines recommend omitting argument labels when arguments are unlabeled at call site, using labels to clarify parameter roles, and naming protocols descriptively to improve call-site clarity and reduce ambiguity.

The best way to document Swift APIs is using structured documentation comments that explain functionality clearly at the call site. Following Swift API design guidelines for documentation improves public declaration discoverability and long-term maintainability.

Use mutating naming in Swift API design when a method modifies the receiver's state, and nonmutating naming when it returns a new value. This distinction enforces call-site clarity and aligns with established Swift API design guidelines.

Name Swift methods using -ed or -ing suffixes for methods returning new values, and form- prefixes for methods creating new instances. This approach enforces best practices and improves clarity at the call site.

Yes, this Swift API design approach works for refactoring existing modules by adjusting naming, labeling, and documentation to conform to guidelines. It helps review new APIs and improve clarity across common Swift patterns.