Advancements in the Objective-C runtime - WWDC 2020 - WWDC Index

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WWDC20 • Session 10163

Advancements in the Objective-C runtime

Developer Tools • iOS, macOS, tvOS, watchOS • 23:05

Dive into the microscopic world of low-level bits and bytes that underlie every Objective-C and Swift class. Find out how recent changes to internal data structures, method lists, and tagged pointers provide better performance and lower memory usage. We’ll demonstrate how to recognize and fix crashes in code that depend on internal details, and show you how to keep your code unaffected by changes to the runtime.

Speaker: Ben Cohen

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