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Swift Talk #20
Understanding Value Type Performance
  1. • Behavior of Reference Types 01:00
  2. • Behavior of Value Types 04:05
  3. • Implementing Copy-On-Write 05:51
  4. • Making Copy-On-Write More Efficient 11:41
  5. • Copy-On-Write Is Not a Magic Bullet 16:02

Swift Talk #20 Understanding Value Type Performance 18:51

In this episode we wrap NSMutableData in a struct while maintaining value semantics. Then we implement copy-on-write to make it efficient and discuss how the standard library uses the same approach.

  1. Value Types
  2. Copy-on-Write
  3. Structs
October 14, 2016

Source Code