Peter Steinberger steipete
steipete
/ TempDir.swift
Created
October 25, 2018 09:17
Based on https://nshipster.com/temporary-files/ I ran some experiments with the recommended replacement API for NSTemporaryDirectory(). It's not straightforward.
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| // tl;dr: FileManager.default.url(for:in:appropriateFor:create:) has unexpected behavior in Simulator and creates temporary folders outside the tmp/ directory. | |
| let tmpDirClassic = NSTemporaryDirectory() | |
| print("tmpDirClassic: \(tmpDirClassic)") | |
| // This is the same code, just syntax sugar for NSTemporaryDirectory() | |
| // https://github.com/apple/swift-corelibs-foundation/blob/master/Foundation/FileManager.swift#L1420-L1422 | |
| let tmpDirClassicNewShim = FileManager.default.temporaryDirectory | |
| print("tmpDirClassicNewShim: \(tmpDirClassicNewShim)") | |
| // Simulator: /Users/steipete/Library/Developer/CoreSimulator/Devices/31C05637-B9C9-482C-A6CE-D063A7CECF64/data/Containers/Data/Application/A68D11A4-88BA-4FCF-A8B1-D102945D0740/tmp/ |
steipete
/ UIKit+iOSMac.h
Last active
February 6, 2022 14:53
iOSMac Marzipan Toolbar Access. Learn more at https://speakerdeck.com/steipete/hacking-marzipan
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| #import <Foundation/Foundation.h> | |
| @class NSString, UHASToolbarItem; | |
| __attribute__((weak_import)) @interface _UIWindowToolbarItem : NSObject | |
| @property(readonly, copy, nonatomic) NSString *label; | |
| @property(readonly, copy, nonatomic) NSString *identifier; | |
| - (id)initWithIdentifier:(id)arg1; |
steipete
/ TestCaseSubclass.m
Last active
December 5, 2018 19:47
If you get an [NSProxy doesNotRecognizeSelector:_accessibilityLoadAccessibilityInformation] crash in iOS 12, here's a temporary fix for your tests. Please change the prefix before you use this! MIT licensed.
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| 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
/ Confused.m
Created
August 3, 2018 19:53
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| // 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
/ gist:a759b56dc1b5d94ba5b3c03ddd00a1ed
Created
February 12, 2018 16:14
Crash from https://twitter.com/steipete/status/963080391207931904
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| 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
/ DispatchQueueSurprise.m
Last active
December 21, 2018 15:07
This fails in iOS 9, but passes for iOS 10/11. What changed around serial/concurrent dispatch queues in iOS 10 so that this now works. Or rather, why does this not work in iOS 9?
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| - (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
/ gist:8c683dd840596e34dcb9159373cea933
Created
November 8, 2017 23:33
NSObject is overloaded. This is iOS 11.2b2. Crazy. And yes, `pspdf` is guilty as well. It's so easy/convenient to make a category on it.
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| 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
/ gist:2ec99bca9dd01e405f9fd7db17472cb5
Created
October 31, 2017 13:24
Crash in com.apple.dt.async-test-expectation
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| 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
/ gist:6a467947cf0db4eb0be0cd90af1990d5
Created
October 20, 2017 07:24
Crash when you call fulfill on background threads and are unlucky?
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| 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
/ gist:84fa68a373be22ef2737c0b3441ac94e
Last active
August 29, 2017 03:24
Xcode 9b6 (9M214v) crash on High Sierra 17A352a
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| 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 |