steipete

static void PSPDFFixiOS12AccessibilityTestCrash(void) {
    let accessibilityLoaderClass = NSClassFromString(@"UIAccessibilityInformationLoader");
    let accessibilitySEL = NSSelectorFromString(@"_loadAccessibilityInformationOnMainThread:");
    __block IMP originalIMP = pspdf_swizzleSelectorWithBlock(accessibilityLoaderClass, accessibilitySEL, ^(id _self, BOOL onMainThread) {
        @try {
            ((void (*)(id, SEL, BOOL))originalIMP)(_self, accessibilitySEL, onMainThread);
        } @catch (NSException *exception) {
            NSLog(@"Exception received: %@", exception);
            if ([exception.name isEqualToString:NSInvalidArgumentException] && [exception.reason containsString:@"_accessibilityLoadAccessibilityInformation"]) {
                NSLog(@"Ignoring IOS 12b5 weirdness...");

steipete

    // Works
    __auto_type queue = dispatch_queue_create("com.pspdfkit.test", DISPATCH_QUEUE_SERIAL);
    dispatch_set_target_queue(queue, dispatch_get_global_queue(QOS_CLASS_DEFAULT, 0));

    // Crashes with EXC_BAD_INSTRUCTION
    // I guess this fails because the global queues already have an autorelease pool?
    __auto_type queue2 = dispatch_queue_create("com.pspdfkit.test", DISPATCH_QUEUE_SERIAL_WITH_AUTORELEASE_POOL);
    dispatch_set_target_queue(queue2, dispatch_get_global_queue(QOS_CLASS_DEFAULT, 0));

steipete

Process:               Tweetbot [58303]
Path:                  /Applications/Tweetbot.app/Contents/MacOS/Tweetbot
Identifier:            com.tapbots.TweetbotMac
Version:               2.5.4 (25400)
App Item ID:           557168941
App External ID:       824334033
Code Type:             X86-64 (Native)
Parent Process:        ??? [1]
Responsible:           Tweetbot [58303]
User ID:               501

steipete

- (void)testDispatchConcurrentExecutionWithNamedQueuesRaw {
    let expectation = [self expectationWithDescription:@"Concurrent execution must happen"];
    let semaphore = dispatch_semaphore_create(0);

    // global queue, concurrent
    let attributes = dispatch_queue_attr_make_with_qos_class(DISPATCH_QUEUE_CONCURRENT, QOS_CLASS_DEFAULT, 0);
    let defaultQueue = dispatch_queue_create("com.pspdfkit.default-concurrent", attributes);

    // serial sub-queues that dispatch to concurrent queue
    let queue1 = dispatch_queue_create("com.pspdfkit.queue1", DISPATCH_QUEUE_SERIAL);

steipete

	Class Methods:
		+ (Class) safeCategoryBaseClass; (0x12c470134)
		+ (BOOL) _old_unswizzled_automaticallyNotifiesObserversForKey:(id)arg1; (0x1150df5a0)
		+ (id) _old_unswizzled_keyPathsForValuesAffectingValueForKey:(id)arg1; (0x1150df620)
		+ (id) requiredStoreLibraryPersonalizationProperties; (0x118daaeff)
		+ (void) mf_clearLocks; (0x11a41d09e)
		+ (void) _accessibilityCalDetailStringForEvent:(id)arg1 inLine1:(id*)arg2 inLine2:(id*)arg3 inLine3:(id*)arg4 inLine4:(id*)arg5; (0x127db7c6e)
		+ (void) _accessibilityCalGetHourDesignatorsForAM:(id*)arg1 andPM:(id*)arg2; (0x127d1e7bb)
		+ (BOOL) _accessibilityCalSpaceBetweenDesignatorsAndHour; (0x127d1e7cb)
		+ (BOOL) _accessibilityCalHourDesignatorsAreBeforeHour; (0x127d1e7ec)

steipete

Process:               PSPDFFoundation-TestHost-iOS [95495]
Path:                  /Users/USER/Library/Developer/CoreSimulator/Devices/1694A397-7C29-4470-A3A0-9A3E350DB19E/data/Containers/Bundle/Application/3A6309AC-3045-4D7C-9E83-006339C933C6/PSPDFFoundation-TestHost-iOS.app/PSPDFFoundation-TestHost-iOS
Identifier:            PSPDFFoundation-TestHost-iOS
Version:               1.0 (1)
Code Type:             X86-64 (Native)
Parent Process:        launchd_sim [93146]
Responsible:           PSPDFFoundation-TestHost-iOS [95495]
User ID:               502

Date/Time:             2017-10-30 15:37:04.800 -0400

steipete

Process:               PSPDFFoundation-TestHost-iOS [15960]
Path:                  /Users/USER/Library/Developer/CoreSimulator/Devices/0AE503AA-1EFF-4FC4-A1B3-D64B83DD1059/data/Containers/Bundle/Application/774DC2FD-74EF-4F79-B700-EEB70410267F/PSPDFFoundation-TestHost-iOS.app/PSPDFFoundation-TestHost-iOS
Identifier:            PSPDFFoundation-TestHost-iOS
Version:               1.0 (1)
Code Type:             X86-64 (Native)
Parent Process:        launchd_sim [10769]
Responsible:           PSPDFFoundation-TestHost-iOS [15960]
User ID:               502

Date/Time:             2017-10-20 00:02:36.697 -0700

steipete

Process:               Xcode [4032]
Path:                  /Applications/Xcode-beta.app/Contents/MacOS/Xcode
Identifier:            Xcode
Version:               9.0 (13238.4)
Code Type:             X86-64 (Native)
Parent Process:        ??? [1]
Responsible:           Xcode [4032]
User ID:               501

Date/Time:             2017-08-28 10:28:44.078 +0200

steipete

// iOS 11 (my iPad + iPhone)
(lldb)  po UTTypeCopyDeclaration(kUTTypePDF) 
{
    UTTypeConformsTo =     (
        "public.data",
        "public.composite-\U200bcontent"
    );
    UTTypeDescription = PDF;
    UTTypeIdentifier = "com.adobe.pdf";
    UTTypeTagSpecification =     {

steipete

// Similar to defer in Swift
#define pspdf_defer_block_name_with_prefix(prefix, suffix) prefix ## suffix
#define pspdf_defer_block_name(suffix) pspdf_defer_block_name_with_prefix(pspdf_defer_, suffix)
#define pspdf_defer __strong void(^pspdf_defer_block_name(__LINE__))(void) __attribute__((cleanup(pspdf_defer_cleanup_block), unused)) = ^
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunused-function"
static void pspdf_defer_cleanup_block(__strong void(^*block)(void)) {
    (*block)();
}
#pragma clang diagnostic pop