- Enabling Optimizations
- Whole Module Optimizations (WMO)
- Reducing Dynamic Dispatch
- Dynamic Dispatch
- Advice: Use 'final' when you know the declaration does not need to be overridden
- Advice: Use 'private' and 'fileprivate' when declaration does not need to be accessed outside of file
- Advice: If WMO is enabled, use 'internal' when a declaration does not need to be accessed outside of module
- Using Container Types Efficiently
- Advice: Use value types in Array
- Advice: Use ContiguousArray with reference types when NSArray bridging is unnecessary
- Advice: Use inplace mutation instead of object-reassignment
- Wrapping operations
- Advice: Use wrapping integer arithmetic when you can prove that overflow cannot occur
- Generics
- Advice: Put generic declarations in the same module where they are used
- The cost of large Swift values
- Advice: Use copy-on-write semantics for large values
- Unsafe code
- Advice: Use unmanaged references to avoid reference counting overhead
- Protocols
- Advice: Mark protocols that are only satisfied by classes as class-protocols
- The Cost of Let/Var when Captured by Escaping Closures
- Advice: Pass var as an inout if closure not actually escaping
- Unsupported Optimization Attributes
Employee Development by using Skill Cards The goal is to build a hand of cards that make up that person’s most relevant personal growth areas. To do this, both the people leader and team member start with a deck of the same skill cards each. In private, each goes through this deck and sorts these cards into three stacks: not relevant, good enough, and to improve. By discussing why each card was placed where, with particular focus on those that do not match, a real, structured, and to-the-point conversation occurs. By focusing on reasoning—what led you to place this card here?—both can develop a shared understanding of the other's views. The main event, however, comes in focusing on those cards in “to improve”. To create focus and drive actual impact, these cards are discussed and prioritized. With a clear priority and a shared understanding of the individual aspects of each, tangible actions are crafted that can be taken to grow one’s career. LinkedIn Rob Sawyer mobi...
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