Keith Smiley keith

Usage

swiftc main.swift -emit-module-path main.swiftmodule -emit-executable -enable-private-imports -Xfrontend -enable-implicit-dynamic
./main -> prints From original bar()
swiftc -emit-library inject.swift -o inject.dylib -I . -Xlinker -undefined -Xlinker suppress -Xlinker -flat_namespace -Xfrontend -disable-access-control
DYLD_INSERT_LIBRARIES=inject.dylib ./main -> prints From replacement bar()

Passing -Xfrontend -enable-implicit-dynamic removes you from having to add dynamic to everything you want to be replacable

Compiler default for non optimized builds if you pass no argument is the same as if you passed checked
Compiler default for optimized builds if you pass no argument is the same as if you passed unchecked

Configuration	Compiler Flag Value	Build Setting Description	Build Setting Value	Notes

I hereby claim:

I am keith on github.
I am smileykeith (https://keybase.io/smileykeith) on keybase.
I have a public key whose fingerprint is AC20 B263 327E 9C9A A61A 55A1 33BA 60D4 4C71 67F8

To claim this, I am signing this object:

-require 'spaceship'
-Spaceship::Portal.login
-Spaceship::Portal.select_team
-Spaceship::Portal.app.all.collect do |app|
-  print "Delete #{ app.bundle_id }? [y/N]: "
-  delete = gets.strip.downcase == "y"
-  if delete
-    puts "Deleting #{ app.bundle_id }"

	/// So, lets talk about AppKit. The way this function works is by passing a delegate (which is required
	/// to be a NSObject, but here is typed as Any) which turns out to be the same type as `self`, a Selector,
	/// which in this case is `_something:didSomething:soContinue:` (not kidding), and some "contextInfo"
	/// (which is actually a block). While all of these arguments appear to be optional, passing nil through
	/// to the function call that `shouldCloseSelector` defines, or passing nil to super, will cause the app
	/// to crash. So then we need to call the function on `delegate` defined by `shouldCloseSelector`.
	///
	/// According to the documentation the function signature for this selector looks like this:
	/// - (void)document:(NSDocument )doc shouldClose:(BOOL)shouldClose contextInfo:(void )contextInfo
	///

	import Foundation

	func set<T>(value: T, forKey key: String) {
	UserDefaults.standard.set(value, forKey: key) // this crashes because it's trying to store Optional<Date>
	}

	let date: Date! = Date()
	set(value: date, forKey: "key")

	///
	/// This code crashes with Swift 3.0 with optimizations enabled
	/// Run with:
	/// $ swift -O optimizationCrash.swift
	///
	extension Dictionary {
	// init(pairs: [(Key, Value)]?) { // With `(Key, Value)` this doesn't crash
	init(pairs: [Element]?) { // With `Element` this crashes with -0
	self.init()
	}

	#!/bin/bash

	set -euo pipefail

	xcrun altool --upload-app --type ios --file "path/to/foo.ipa" --username "$ITC_USER" --password "$ITC_PASSWORD"

	sudo ln -s /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/10.0\ \(14A5309d\)
	/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport