> On 31 Dec 2015, at 5:03 AM, Joe Groff <jgr...@apple.com> wrote:
>
>>
>> On Dec 29, 2015, at 9:04 PM, Luke Howard via swift-dev <swift-dev@swift.org>
>> wrote:
>>
>> I’m seeing an assertion failure when I try to compile the following on Linux:
>>
>> typealias TypeMetadataAccessor = @convention(c) () -> AnyClass?
>>
>> The assertion failing is:
>>
>> assert(getASTContext().LangOpts.EnableObjCInterop ||
>> *repr != MetatypeRepresentation::ObjC);
>>
>> in ExistentialMetatypeType::ExistentialMetatypeType(). Commenting it out and
>> the code compiles and works.
>>
>> Can someone that understands the compiler suggest the correct fix?
>
> It looks like you're trying to poke at private runtime metadata structures;
> please don't do that. What are you trying to do?
Per our exchange yesterday – implement NSStringFromClass() heuristics for
NSKeyedArchiver
A better solution would be to provide a proposed API/patch to the runtime but I
was just trying to get the NSCoding branch testable on Linux first – can’t
tackle everything at once.
More:
https://bugs.swift.org/browse/SR-381
— Luke
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