Injection II, the App
The Injection plugin for Xcode is now a standalone app. This allows you to inject changes to class method implementations into a running application in the simulator or a macOS app. Injecting is now as simple as downloading the app and having it running in the background while you are working on a project in Xcode then using the menu bar item “Inject Source” (don’t forget to save the file!)
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The app includes the “Xprobe” viewer for browsing an application’s memory. It’s loaded into an app using the “Load Xprobe” menu bar item. Initially, Xprobe displays a “sweep” of objects found by recursively following ivars pointing to other objects from a set of seeds. Clicking on an instance link displays the ivars of that object at that point in time. A snapshot can also be taken to freeze the state of the entire application and store it as a standalone web page for later analysis such as this file from Artsy’s eidolon.
