swift-language

Opaque types hide concrete types behind a fixed interface, while existential types abstract away the concrete type entirely. Swift language features guide you on applying `some` and `any` effectively for protocol-oriented design.

Implement custom Codable parsing by leveraging modern collection APIs and best practices. The Swift language guidance covers efficient data handling and encoding strategies for robust data models.

Use result builders to construct domain-specific languages by declaratively composing data. Swift language features allow you to build custom result builders for cleaner, more expressive code structures.

Typed throws are supported in modern Swift to specify exact error types at compile time. This feature enhances error handling predictability alongside if/switch expressions for concise conditional assignments.

Regex builders provide a type-safe, declarative syntax for pattern matching in Swift. They integrate with modern Swift language constructs to process strings efficiently without traditional regex strings.

Use FormatStyle to apply localized and type-safe formatting to data types like dates and numbers. Swift language features support FormatStyle as a modern alternative to older string interpolation methods.