Extract a value from the SwiftUI environment by the name of its associated EnvironmentKey (e.g. "ForegroundColorKey").
Tested only in Xcode 12.0 beta 4 in the iOS simulator. May break in other environments because it uses reflection. If SwiftUI's private type hierarchy changes, it will probably stop working.
A dump of the SwiftUI.framework binary for the iOS simulator (as of Xcode 12.0 beta 2) using the swift-reflection-dump tool.
Note: I used a Swift 5.3 compiler build from a few weeks ago that I had laying around. Because of ABI stability, I don't think the swift-reflection-dump version has to match the compiler version that was used to build the binary, but I'm not 100% sure.
| // swift-interface-format-version: 1.0 | |
| // swift-compiler-version: Apple Swift version 5.1.1 (swiftlang-1100.2.274.2 clang-1100.2.32.1) | |
| // swift-module-flags: -target arm64e-apple-ios13.2 -enable-objc-interop -enable-library-evolution -swift-version 5 -enforce-exclusivity=checked -Osize -module-name SwiftUI | |
| import Combine | |
| import CoreData | |
| import CoreFoundation | |
| import CoreGraphics | |
| import CoreText | |
| import Darwin | |
| import Foundation |
| /*: | |
| This is a concept re-implementation of the @Binding and @State property wrappers from SwiftUI | |
| The only purpose of this code is to implement those wrappers myself | |
| just to understand how they work internally and why they are needed, | |
| ⚠️ This is not supposed to be a reference implementation nor cover all | |
| subtleties of the real Binding and State types. | |
| The only purpose of this playground is to show how re-implementing | |
| them myself has helped me understand the whole thing better |
| # Carthage has no built-in way of testing if built products are already up-to-date | |
| # Lets use a stampfile ourselves, so we don't have to rebuild each time if nothing changed | |
| Carthage: Carthage/Build/build.stamp | |
| Carthage/Build/build.stamp: Cartfile.resolved | |
| -$(RM) -r Carthage/Build | |
| $(CARTHAGE) bootstrap --platform iOS,watchOS | |
| @touch '$@' |
| require ["envelope", "imapflags", "fileinto", "reject", "notify", "vacation", "regex", "relational", "comparator-i;ascii-numeric", "body", "copy"]; | |
| # Spam processing | |
| if not header :contains ["X-Spam-known-sender"] "yes" { | |
| if allof ( | |
| header :contains ["X-Backscatter"] "yes", | |
| not header :matches ["X-LinkName"] "*" | |
| ) { | |
| discard; | |
| stop; |
| /* How to Hook with Logos | |
| Hooks are written with syntax similar to that of an Objective-C @implementation. | |
| You don't need to #include <substrate.h>, it will be done automatically, as will | |
| the generation of a class list and an automatic constructor. | |
| %hook ClassName | |
| // Hooking a class method | |
| + (id)sharedInstance { |
This list has moved to the following page:
http://anonymoushash.vmbrasseur.com/resources/negotiation/
It's joining a number of other lists of resources (management, telecommuting, etc.):
http://anonymoushash.vmbrasseur.com/resources/
Keeping them all together like this makes it much more likely I'll maintain them (as a group they'll have a larger mindshare in my cluttered & busy brain) rather than fire & forget a list which is never updated again.
| #!/usr/sbin/dtrace -q -s | |
| /* | |
| Overly spammy, mostly covered by the other probes (every "read" or "write" is a "request") | |
| CFPreferencesServer$target:::request { | |
| printf("REQUEST from pid %d at %Y ( domain: %s, user: %s, host: %s, container: %s, managed: %d)\n", arg0, walltimestamp, copyinstr(arg1) != NULL ? copyinstr(arg1) : "(NULL)" ?: "(NULL)", copyinstr(arg2) != NULL ? copyinstr(arg2) : "(NULL)", copyinstr(arg3) != NULL ? copyinstr(arg3) : "(NULL)", copyinstr(arg4) != NULL ? copyinstr(arg4) : "(NULL)", arg5); | |
| } | |
| */ | |
| CFPreferencesServer$target:::write_rejected { | |
| printf("REJECTED WRITE OF KEY %s request from pid %d for reason %s at %Y ( domain: %s, user: %s, host: %s, container: %s)\n", copyinstr(arg1) != NULL ? copyinstr(arg1) : "(NULL)", arg0, copyinstr(arg6) != NULL ? copyinstr(arg6) : "(NULL)", walltimestamp, copyinstr(arg2) != NULL ? copyinstr(arg2) : "(NULL)", copyinstr(arg3) != NULL ? copyinstr(arg3) : "(NULL)", copyinstr(arg4) != NULL ? copyinstr(arg4) : "(NULL)", copyinstr(arg5) != NULL ? copyinstr(arg5) |
| // Props to the fine folks on this thread http://bbs.iosre.com/forum.php?mod=viewthread&tid=694 | |
| // | |
| // Example output of a call to dailyUsageStasticsForBundleIdentifier or weeklyUsageStasticsForBundleIdentifier | |
| // Inline comments are educated guesses at meaning | |
| // { | |
| // Airdrop = 0; // Has App used Airdrop | |
| // Airplay = 0; // Has App used Airplay | |
| // BBCondition = 0; // ?? BB = Backboard? This number is a float (ie 24.8766038700895) | |
| // | |
| // // No idea what the below units are, or what BLD means |