Crash on view.layer.render(in: ctx.cgContext)

[hilalalhakani]

the error is Thread 1: EXC_BAD_ACCESS (code=EXC_I386_GPFLT)

[stephencelis]

Hi @hilalalhakani! Thanks for taking the time to report. Unfortunately we need more information to debug/reproduce the problem. I'm going to close this issue out, but can re-open if you provide a way for us to reproduce. Or feel free to open a new issue with more information. Thanks!

[hilalalhakani]

there's nothing wrong with the library, it was my bad because i copy pasted a storyboard from one project to another which resulted the crash .

[mrackwitz]

I see a similar crash when testing a SwiftUI view which is using an inset shadow. 🤔

public struct BarView: View {
    public var body: some View {
        Rectangle()
            .fill(Color.red.shadow(.inner(color: Color.black, radius: 6, x: 0, y: 0)))
    }
}

Full Stack Trace

Thread 1 Queue : com.apple.main-thread (serial)
#0	0x000000018002d054 in objc_retain ()
#1	0x000000018838e030 in CGGStateSetFillColor ()
#2	0x00000001880a7bec in rip_auto_context_begin_layer ()
#3	0x0000000188399604 in CGContextBeginTransparencyLayerWithRect ()
#4	0x0000000188399b70 in CGContextBeginTransparencyLayer ()
#5	0x000000019fa1803c in RB::Coverage::Primitive::fill(RB::CGContext&, RB::Fill::Color const&) const ()
#6	0x000000019f9f63dc in RB::DisplayList::GenericItem1<RB::Coverage::Primitive, RB::Fill::Color>::render(RB::CGContext&) const ()
#7	0x000000019fa54318 in RB::DisplayList::LayerItem::render(RB::CGContext&) const ()
#8	0x000000019fa540f0 in RB::DisplayList::Contents::render(RB::CGContext&, RB::DisplayListPredicate::Invertible const*, void*) const ()
#9	0x000000019f9eded4 in render_contents(CGContext*, NSDictionary*, RB::DisplayList::Contents const&, RB::DisplayListPredicate::Invertible const*) ()
#10	0x000000019f9edd14 in -[RBDisplayList renderInContext:options:] ()
#11	0x000000019fa23170 in -[RBLayer _renderForegroundInContext:] ()
#12	0x0000000187f0f370 in -[CALayer renderInContext:] ()
#13	0x0000000187f106fc in -[CALayer _renderSublayersInContext:] ()
#14	0x0000000187f0f37c in -[CALayer renderInContext:] ()
#15	0x000000010d8e6670 in closure #1 in closure #1 in closure #1 in implicit closure #1 in snapshotView(config:drawHierarchyInKeyWindow:traits:view:viewController:) at $BUILD_DIR/SourcePackages/checkouts/swift-snapshot-testing/Sources/SnapshotTesting/Common/View.swift:744
#16	0x000000010d8e2d6c in thunk for @callee_guaranteed (@guaranteed UIGraphicsImageRendererContext) -> () ()
#17	0x000000010d8e2db0 in thunk for @escaping @callee_guaranteed (@guaranteed UIGraphicsImageRendererContext) -> () ()
#18	0x0000000109f45b88 in -[UIGraphicsRenderer runDrawingActions:completionActions:format:error:] ()
#19	0x0000000109f45a24 in -[UIGraphicsRenderer runDrawingActions:completionActions:error:] ()
#20	0x0000000109f41d74 in -[UIGraphicsImageRenderer imageWithActions:] ()
#21	0x000000010d8e6384 in closure #1 in closure #1 in implicit closure #1 in snapshotView(config:drawHierarchyInKeyWindow:traits:view:viewController:) at $BUILD_DIR/SourcePackages/checkouts/swift-snapshot-testing/Sources/SnapshotTesting/Common/View.swift:740
#22	0x000000010d8a499c in closure #1 in Async.init(value:) at $BUILD_DIR/SourcePackages/checkouts/swift-snapshot-testing/Sources/SnapshotTesting/Async.swift:28
#23	0x000000010d8e6038 in closure #1 in implicit closure #1 in snapshotView(config:drawHierarchyInKeyWindow:traits:view:viewController:) at $BUILD_DIR/SourcePackages/checkouts/swift-snapshot-testing/Sources/SnapshotTesting/Common/View.swift:738
#24	0x000000010d8a4c18 in closure #1 in Async.map<τ_0_0>(_:) at $BUILD_DIR/SourcePackages/checkouts/swift-snapshot-testing/Sources/SnapshotTesting/Async.swift:36
#25	0x000000010d8f3408 in closure #1 in closure #1 in Snapshotting.asyncPullback<τ_0_0>(_:) at $BUILD_DIR/SourcePackages/checkouts/swift-snapshot-testing/Sources/SnapshotTesting/Snapshotting.swift:85
#26	0x000000010d8f4124 in partial apply for closure #1 in closure #1 in Snapshotting.asyncPullback<τ_0_0>(_:) ()
#27	0x000000010d8a07b4 in verifySnapshot<τ_0_0, τ_0_1>(matching:as:named:record:snapshotDirectory:timeout:file:testName:line:) at $BUILD_DIR/SourcePackages/checkouts/swift-snapshot-testing/Sources/SnapshotTesting/AssertSnapshot.swift:209
#28	0x000000010d89f860 in assertSnapshot<τ_0_0, τ_0_1>(matching:as:named:record:timeout:file:testName:line:) at $BUILD_DIR/SourcePackages/checkouts/swift-snapshot-testing/Sources/SnapshotTesting/AssertSnapshot.swift:41
#29	0x000000010d8058e4 in FooTests.testBar() at $SRC_DIR/Tests/FooTests/FooTests.swift:14
#30	0x000000010d805bcc in @objc FooTests.testBar() ()
#31	0x0000000180414d20 in __invoking___ ()
#32	0x0000000180411f0c in -[NSInvocation invoke] ()
#33	0x0000000104f79b58 in +[XCTFailableInvocation invokeStandardConventionInvocation:completion:] ()
#34	0x0000000104f79b10 in __90+[XCTFailableInvocation invokeInvocation:withTestMethodConvention:lastObservedErrorIssue:]_block_invoke_3 ()
#35	0x0000000104f795b8 in __81+[XCTFailableInvocation invokeWithAsynchronousWait:lastObservedErrorIssue:block:]_block_invoke.5 ()
#36	0x0000000104f41538 in +[XCTSwiftErrorObservation observeErrorsInBlock:] ()
#37	0x0000000104f7944c in +[XCTFailableInvocation invokeWithAsynchronousWait:lastObservedErrorIssue:block:] ()
#38	0x0000000104f798d0 in +[XCTFailableInvocation invokeInvocation:withTestMethodConvention:lastObservedErrorIssue:] ()
#39	0x0000000104f79bc8 in +[XCTFailableInvocation invokeInvocation:lastObservedErrorIssue:] ()
#40	0x0000000104f69ee4 in __24-[XCTestCase invokeTest]_block_invoke.78 ()
#41	0x0000000104f3a8cc in -[XCTestCase(XCTIssueHandling) _caughtUnhandledDeveloperExceptionPermittingControlFlowInterruptions:caughtInterruptionException:whileExecutingBlock:] ()
#42	0x0000000104f69b2c in -[XCTestCase invokeTest] ()
#43	0x0000000104f6af64 in __26-[XCTestCase performTest:]_block_invoke.119 ()
#44	0x0000000104f3a8cc in -[XCTestCase(XCTIssueHandling) _caughtUnhandledDeveloperExceptionPermittingControlFlowInterruptions:caughtInterruptionException:whileExecutingBlock:] ()
#45	0x0000000104f6aad4 in __26-[XCTestCase performTest:]_block_invoke.110 ()
#46	0x0000000104f53a60 in +[XCTContext _runInChildOfContext:forTestCase:markAsReportingBase:block:] ()
#47	0x0000000104f5398c in +[XCTContext runInContextForTestCase:markAsReportingBase:block:] ()
#48	0x0000000104f6a7a0 in -[XCTestCase performTest:] ()
#49	0x0000000104f2aa78 in -[XCTest runTest] ()
#50	0x0000000104f56300 in -[XCTestSuite runTestBasedOnRepetitionPolicy:testRun:] ()
#51	0x0000000104f561e4 in __27-[XCTestSuite performTest:]_block_invoke ()
#52	0x0000000104f55cf8 in __59-[XCTestSuite _performProtectedSectionForTest:testSection:]_block_invoke ()
#53	0x0000000104f53a60 in +[XCTContext _runInChildOfContext:forTestCase:markAsReportingBase:block:] ()
#54	0x0000000104f5398c in +[XCTContext runInContextForTestCase:markAsReportingBase:block:] ()
#55	0x0000000104f55ca0 in -[XCTestSuite _performProtectedSectionForTest:testSection:] ()
#56	0x0000000104f55f10 in -[XCTestSuite performTest:] ()
#57	0x0000000104f2aa78 in -[XCTest runTest] ()
#58	0x0000000104f56300 in -[XCTestSuite runTestBasedOnRepetitionPolicy:testRun:] ()
#59	0x0000000104f561e4 in __27-[XCTestSuite performTest:]_block_invoke ()
#60	0x0000000104f55cf8 in __59-[XCTestSuite _performProtectedSectionForTest:testSection:]_block_invoke ()
#61	0x0000000104f53a60 in +[XCTContext _runInChildOfContext:forTestCase:markAsReportingBase:block:] ()
#62	0x0000000104f5398c in +[XCTContext runInContextForTestCase:markAsReportingBase:block:] ()
#63	0x0000000104f55ca0 in -[XCTestSuite _performProtectedSectionForTest:testSection:] ()
#64	0x0000000104f55f10 in -[XCTestSuite performTest:] ()
#65	0x0000000104f2aa78 in -[XCTest runTest] ()
#66	0x0000000104f56300 in -[XCTestSuite runTestBasedOnRepetitionPolicy:testRun:] ()
#67	0x0000000104f561e4 in __27-[XCTestSuite performTest:]_block_invoke ()
#68	0x0000000104f55cf8 in __59-[XCTestSuite _performProtectedSectionForTest:testSection:]_block_invoke ()
#69	0x0000000104f53a60 in +[XCTContext _runInChildOfContext:forTestCase:markAsReportingBase:block:] ()
#70	0x0000000104f5398c in +[XCTContext runInContextForTestCase:markAsReportingBase:block:] ()
#71	0x0000000104f55ca0 in -[XCTestSuite _performProtectedSectionForTest:testSection:] ()
#72	0x0000000104f55f10 in -[XCTestSuite performTest:] ()
#73	0x0000000104f2aa78 in -[XCTest runTest] ()
#74	0x0000000104f2c2ec in __89-[XCTTestRunSession executeTestsWithIdentifiers:skippingTestsWithIdentifiers:completion:]_block_invoke ()
#75	0x0000000104f53a60 in +[XCTContext _runInChildOfContext:forTestCase:markAsReportingBase:block:] ()
#76	0x0000000104f5398c in +[XCTContext runInContextForTestCase:markAsReportingBase:block:] ()
#77	0x0000000104f2c1e8 in -[XCTTestRunSession executeTestsWithIdentifiers:skippingTestsWithIdentifiers:completion:] ()
#78	0x0000000104f859d0 in __72-[XCTExecutionWorker enqueueTestIdentifiersToRun:testIdentifiersToSkip:]_block_invoke_2 ()
#79	0x0000000104f85af0 in -[XCTExecutionWorker runWithError:] ()
#80	0x0000000104f50f90 in __25-[XCTestDriver _runTests]_block_invoke.184 ()
#81	0x0000000104f34224 in -[XCTestObservationCenter _observeTestExecutionForBlock:] ()
#82	0x0000000104f50c2c in -[XCTestDriver _runTests] ()
#83	0x0000000104f2af60 in _XCTestMain ()
#84	0x0000000102dd88e4 in main ()
#85	0x00000001030f5fa0 in start_sim ()
#86	0x0000000102e1d08c in start ()