Swift Language Standards

Priority: P0

Implementation Guidelines

Optionals & Safety

• Never Force Unwrap: Use guard let, if let, or nil coalescing (??).
• Nil Comparison: Use value != nil instead of if let _ = value.
• Implicitly Unwrapped: Avoid Type!. Use proper Type?.

Protocols & Extensions

• Protocol Composition: Prefer struct + protocols over class inheritance.
• Extensions: Use for conformance (extension MyType: Codable), not storage.
• Protocol Witnesses: Explicitly implement all required members.

Type Safety