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[SR-2290] Casting Bool to NSNumber that passed by generic parameter conforming ExpressibleByBooleanLiteral cause +[NSNumber initWithBooleanLiteral:]: unrecognized selector sent to class #44897

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norio-nomura opened this issue Aug 6, 2016 · 3 comments
Closed

[SR-2290] Casting Bool to NSNumber that passed by generic parameter conforming ExpressibleByBooleanLiteral cause +[NSNumber initWithBooleanLiteral:]: unrecognized selector sent to class #44897

norio-nomura opened this issue Aug 6, 2016 · 3 comments
Labels
bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself crash Bug: A crash, i.e., an abnormal termination of software run-time crash Bug → crash: Swift code crashed during execution

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@norio-nomura
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Previous ID SR-2290
Radar None
Original Reporter @norio-nomura
Type Bug
Status Closed
Resolution Done
Environment

Xcode 8 beta 4 (8S188o)

Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug, RunTimeCrash
Assignee None
Priority Medium

md5: a48db1cb1149b420c0ce248c68a938a7

Issue Description:

As workaround for SE-0109, I wrote code following:

import Foundation

func isTrue<T: ExpressibleByBooleanLiteral & Equatable>(_ v: T) -> Bool {
    return v == (true as T)
}

isTrue(1)

and got following error:

2016-08-06 18:44:54.771 com.apple.dt.Xcode.PlaygroundStub-macosx[96001:2430928] +[NSNumber initWithBooleanLiteral:]: unrecognized selector sent to class 0x7fff77fa8d80
2016-08-06 18:44:54.773 com.apple.dt.Xcode.PlaygroundStub-macosx[96001:2430928] An uncaught exception was raised
2016-08-06 18:44:54.773 com.apple.dt.Xcode.PlaygroundStub-macosx[96001:2430928] +[NSNumber initWithBooleanLiteral:]: unrecognized selector sent to class 0x7fff77fa8d80
2016-08-06 18:44:54.774 com.apple.dt.Xcode.PlaygroundStub-macosx[96001:2430928] (
    0   CoreFoundation                      0x00007fff85ebb4f2 __exceptionPreprocess + 178
    1   libobjc.A.dylib                     0x00007fff98610f7e objc_exception_throw + 48
    2   CoreFoundation                      0x00007fff85f250ad +[NSObject(NSObject) doesNotRecognizeSelector:] + 205
    3   CoreFoundation                      0x00007fff85e2b571 ___forwarding___ + 1009
    4   CoreFoundation                      0x00007fff85e2b0f8 _CF_forwarding_prep_0 + 120
    5   libswiftFoundation.dylib            0x000000010b780781 _TTWCSo8NSNumbers27ExpressibleByBooleanLiteral10FoundationFS0_CfT14booleanLiteralwx18BooleanLiteralType_x + 49
    6   ???                                 0x000000010b93924e 0x0 + 4489187918
    7   ???                                 0x000000010b9390b1 0x0 + 4489187505
    8   com.apple.dt.Xcode.PlaygroundStub-macosx 0x00000001061fa380 main + 0
    9   CoreFoundation                      0x00007fff85e2ca6c __invoking___ + 140
    10  CoreFoundation                      0x00007fff85e2c8fe -[NSInvocation invoke] + 286
    11  CoreFoundation                      0x00007fff85e47d56 -[NSInvocation invokeWithTarget:] + 54
    12  ViewBridge                          0x00007fff98337e71 __68-[NSVB_ViewServiceImplicitAnimationDecodingProxy forwardInvocation:]_block_invoke + 47
    13  ViewBridge                          0x00007fff98342dfa __runAnimationGroup_block_invoke + 21
    14  AppKit                              0x00007fff94aa797f +[NSAnimationContext runAnimationGroup:completionHandler:] + 82
    15  ViewBridge                          0x00007fff98342dd6 runAnimationGroup + 331
    16  ViewBridge                          0x00007fff98337931 +[NSVB_View _animateWithAttributes:animations:completion:] + 531
    17  ViewBridge                          0x00007fff98337de2 -[NSVB_ViewServiceImplicitAnimationDecodingProxy forwardInvocation:] + 183
    18  CoreFoundation                      0x00007fff85e2b382 ___forwarding___ + 514
    19  CoreFoundation                      0x00007fff85e2b0f8 _CF_forwarding_prep_0 + 120
    20  CoreFoundation                      0x00007fff85e2ca6c __invoking___ + 140
    21  CoreFoundation                      0x00007fff85e2c8fe -[NSInvocation invoke] + 286
    22  CoreFoundation                      0x00007fff85e47d56 -[NSInvocation invokeWithTarget:] + 54
    23  ViewBridge                          0x00007fff983088c6 -[NSVB_QueueingProxy forwardInvocation:] + 323
    24  CoreFoundation                      0x00007fff85e2b382 ___forwarding___ + 514
    25  CoreFoundation                      0x00007fff85e2b0f8 _CF_forwarding_prep_0 + 120
    26  CoreFoundation                      0x00007fff85e2ca6c __invoking___ + 140
    27  CoreFoundation                      0x00007fff85e2c8fe -[NSInvocation invoke] + 286
    28  CoreFoundation                      0x00007fff85e47d56 -[NSInvocation invokeWithTarget:] + 54
    29  CoreFoundation                      0x00007fff85e2b382 ___forwarding___ + 514
    30  CoreFoundation                      0x00007fff85e2b0f8 _CF_forwarding_prep_0 + 120
    31  CoreFoundation                      0x00007fff85e2ca6c __invoking___ + 140
    32  CoreFoundation                      0x00007fff85e2c8fe -[NSInvocation invoke] + 286
    33  CoreFoundation                      0x00007fff85e47d56 -[NSInvocation invokeWithTarget:] + 54
    34  CoreFoundation                      0x00007fff85e2b382 ___forwarding___ + 514
    35  CoreFoundation                      0x00007fff85e2b0f8 _CF_forwarding_prep_0 + 120
    36  CoreFoundation                      0x00007fff85e2ca6c __invoking___ + 140
    37  CoreFoundation                      0x00007fff85e2c8fe -[NSInvocation invoke] + 286
    38  ViewBridge                          0x00007fff9834730b withHintInProgress + 501
    39  ViewBridge                          0x00007fff98347091 __deferNSXPCInvocationOntoMainThread_block_invoke_2 + 220
    40  ViewBridge                          0x00007fff982e5b4f +[NSViewServiceApplication withHostPID:invoke:] + 46
    41  ViewBridge                          0x00007fff98346f5f __deferNSXPCInvocationOntoMainThread_block_invoke + 129
    42  ViewBridge                          0x00007fff98346b6a __deferBlockOntoMainThread_block_invoke_2 + 448
    43  CoreFoundation                      0x00007fff85e504ac __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 12
    44  CoreFoundation                      0x00007fff85e2fd05 __CFRunLoopDoBlocks + 341
    45  CoreFoundation                      0x00007fff85e2fa6b __CFRunLoopRun + 2347
    46  CoreFoundation                      0x00007fff85e2eed8 CFRunLoopRunSpecific + 296
    47  HIToolbox                           0x00007fff9c1f4935 RunCurrentEventLoopInMode + 235
    48  HIToolbox                           0x00007fff9c1f476f ReceiveNextEventCommon + 432
    49  HIToolbox                           0x00007fff9c1f45af _BlockUntilNextEventMatchingListInModeWithFilter + 71
    50  AppKit                              0x00007fff94a90df6 _DPSNextEvent + 1067
    51  AppKit                              0x00007fff94a90226 -[NSApplication _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 454
    52  ViewBridge                          0x00007fff982e6b21 -[NSViewServiceApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 73
    53  AppKit                              0x00007fff94a84d80 -[NSApplication run] + 682
    54  AppKit                              0x00007fff94a4e368 NSApplicationMain + 1176
    55  libxpc.dylib                        0x00007fff979b9194 _xpc_objc_main + 795
    56  libxpc.dylib                        0x00007fff979b7bbe xpc_main + 494
    57  ViewBridge                          0x00007fff9830c683 xpc_connection_handler + 0
    58  ViewBridge                          0x00007fff982ea9d9 NSViewServiceApplicationMain + 2818
    59  com.apple.dt.Xcode.PlaygroundStub-macosx 0x00000001061fa3a2 main + 34
    60  libdyld.dylib                       0x00007fff90c725ad start + 1
)

This issue also happen with `NSDecimalNumber`.
Following code is working as expected:

struct C: ExpressibleByBooleanLiteral, Equatable {
    var string: String
    init(_ string: String) {
        self.string = string
    }
    init(booleanLiteral value: Bool) {
        self.init(value ? "true" : "false")
    }
    static func ==(lhs: C, rhs: C) -> Bool {
        return lhs.string == rhs.string
    }
}

func isTrue<T: ExpressibleByBooleanLiteral & Equatable>(_ v: T) -> Bool {
    return v == (true as T)
}

isTrue(C("true")) // true
@belkadan
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belkadan commented Aug 8, 2016

With implicit bridging of literals removed, the test case is now

import Foundation

func isTrue<T: ExpressibleByBooleanLiteral & Equatable>(_ v: T) -> Bool {
    return v == (true as T)
}

isTrue(1 as NSNumber)

but it's still occurring.

@Dante-Broggi
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I think this is fixed by the Xcode 9.4.1 toolchain. If so, it should be closed.

@norio-nomura
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I confirmed that this issue has been resolved on Xcode 9.4.1

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
@AnthonyLatsis AnthonyLatsis added the crash Bug: A crash, i.e., an abnormal termination of software label Dec 12, 2022
This issue was closed.
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself crash Bug: A crash, i.e., an abnormal termination of software run-time crash Bug → crash: Swift code crashed during execution
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@norio-nomura @belkadan @AnthonyLatsis @Dante-Broggi