Catch NSExceptions when doing objc runtime shenanigans

Tusker.xcodeproj/project.pbxproj

@@ -596,6 +596,7 @@
 		D667E5F72135C3040057A976 /* Mastodon+Equatable.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Mastodon+Equatable.swift"; sourceTree = "<group>"; };
 		D66A77BA233838DC0058F1EC /* UIFont+Traits.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "UIFont+Traits.swift"; sourceTree = "<group>"; };
 		D66C900A28DAB7FD00217BF2 /* TimelineViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TimelineViewController.swift; sourceTree = "<group>"; };
+		D671A6BE299DA96100A81FEA /* Tusker-Bridging-Header.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "Tusker-Bridging-Header.h"; sourceTree = "<group>"; };
 		D673ACCD2919E74200D6F8B0 /* MenuPicker.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MenuPicker.swift; sourceTree = "<group>"; };
 		D674A50727F910F300BA03AC /* Pachyderm */ = {isa = PBXFileReference; lastKnownFileType = wrapper; name = Pachyderm; path = Packages/Pachyderm; sourceTree = "<group>"; };
 		D677284724ECBCB100C732D3 /* ComposeView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ComposeView.swift; sourceTree = "<group>"; };
@@ -1551,6 +1552,7 @@
 				D640D76822BAF5E6004FBE69 /* DomainBlocks.plist */,
 				D6D4DDDB212518A200E1C4BB /* Info.plist */,
 				D60088F02980D938005B4D00 /* Tusker.storekit */,
+				D671A6BE299DA96100A81FEA /* Tusker-Bridging-Header.h */,
 				D6D4DDCF212518A000E1C4BB /* AppDelegate.swift */,
 				D6CA6A91249FAD8900AD45C1 /* AudioSessionHelper.swift */,
 				D61F75B6293C119700C0B37F /* Filterer.swift */,
@@ -1800,7 +1802,7 @@
 				TargetAttributes = {
 					D6D4DDCB212518A000E1C4BB = {
 						CreatedOnToolsVersion = 10.0;
-						LastSwiftMigration = 1410;
+						LastSwiftMigration = 1420;
 					};
 					D6D4DDDF212518A200E1C4BB = {
 						CreatedOnToolsVersion = 10.0;
@@ -2421,6 +2423,7 @@
 			buildSettings = {
 				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
 				CODE_SIGN_ENTITLEMENTS = Tusker/Tusker.entitlements;
 				CODE_SIGN_IDENTITY = "iPhone Developer";
 				CODE_SIGN_STYLE = Automatic;
@@ -2437,6 +2440,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = "$(BUNDLE_ID_PREFIX).Tusker";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SUPPORTS_MACCATALYST = YES;
+				SWIFT_OBJC_BRIDGING_HEADER = "Tusker/Tusker-Bridging-Header.h";
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2,6";
 			};
@@ -2637,6 +2641,7 @@
 			buildSettings = {
 				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
 				CODE_SIGN_ENTITLEMENTS = Tusker/Tusker.entitlements;
 				CODE_SIGN_IDENTITY = "iPhone Developer";
 				CODE_SIGN_STYLE = Automatic;
@@ -2655,6 +2660,8 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SUPPORTS_MACCATALYST = YES;
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OBJC_BRIDGING_HEADER = "Tusker/Tusker-Bridging-Header.h";
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2,6";
 			};
@@ -2665,6 +2672,7 @@
 			buildSettings = {
 				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
 				CODE_SIGN_ENTITLEMENTS = Tusker/Tusker.entitlements;
 				CODE_SIGN_IDENTITY = "iPhone Developer";
 				CODE_SIGN_STYLE = Automatic;
@@ -2681,6 +2689,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = "$(BUNDLE_ID_PREFIX).Tusker";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SUPPORTS_MACCATALYST = YES;
+				SWIFT_OBJC_BRIDGING_HEADER = "Tusker/Tusker-Bridging-Header.h";
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2,6";
 			};

Tusker/AppDelegate.swift

@@ -137,6 +137,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
         var originalIMP: IMP?
         let imp = imp_implementationWithBlock({ (self: UIStatusBarManager, sender: AnyObject) in
             let original = unsafeBitCast(originalIMP!, to: (@convention(c) (UIStatusBarManager, Selector, AnyObject) -> Void).self)
+            let exception = catchNSException {
                 guard let windowScene = self.perform(Selector(("windowScene"))).takeUnretainedValue() as? UIWindowScene,
                       let xPosition = sender.value(forKey: "xPosition") as? CGFloat,
                       let delegate = windowScene.delegate as? TuskerSceneDelegate else {
@@ -149,6 +150,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
                 case .continue:
                     original(self, selector, sender)
                 }
+            }
         } as @convention(block) (UIStatusBarManager, AnyObject) -> Void)
         originalIMP = class_replaceMethod(UIStatusBarManager.self, selector, imp, "v@:@")
         if originalIMP == nil {

Tusker/Scenes/TuskerSceneDelegate.swift

@@ -31,9 +31,11 @@ extension TuskerSceneDelegate {
         guard let window else { return }
         window.overrideUserInterfaceStyle = Preferences.shared.theme
         window.tintColor = Preferences.shared.accentColor.color
+        _ = catchNSException {
             let key = ["Controller", "Presentation", "root", "_"].reversed().joined()
             if let rootPresentationController = window.value(forKey: key) as? UIPresentationController {
                 rootPresentationController.overrideTraitCollection = UITraitCollection(pureBlackDarkMode: Preferences.shared.pureBlackDarkMode)
             }
         }
+    }
 }

Tusker/Tusker-Bridging-Header.h

@@ -0,0 +1,15 @@
+//
+//  Use this file to import your target's public headers that you would like to expose to Swift.
+//
+
+#import <Foundation/Foundation.h>
+
+NS_INLINE NSException * _Nullable catchNSException(void(^_Nonnull tryBlock)(void)) {
+    @try {
+        tryBlock();
+    }
+    @catch (NSException *exception) {
+        return exception;
+    }
+    return nil;
+}