How Apple Replaces Entire Frameworks

Bryce Bostwick explains how Apple's developer tools hook and replace entire frameworks using method swizzling and low-level memory techniques.

github.com/brycebostwick/SwizzleEverything/ Apple's developer tools can be surprisingly complex under the hood, but this single implementation is still extra mind-blowing to me. Let's pull it apart and see if we can make it even better! Landon Fuller's post on `imp_implementationWithBlock` (archived) : web.archive.org/web/20250131045152/https://landonf.org/code/… Mike Ash's post on Ring Buffers & Mirrored Memory: mikeash.com/pyblog/friday-qa-2012-02-03-ring-buffers-and-mir… Thanks @ph4seon3 for the huge amount of work editing this! More iOS nonsense over on bryce.co