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4d26358708
When there's an Objective-C protocol that adopts other protocols, the other protocols become part of the requirement signature. If that can change, Swift conformances to that protocol will get very confused when it comes time to deserialize the conformances that satisfy the requirement signature. To recover from this, just deserialize /all/ trailing conformances, rather than follow the requirement signature, and match them up after the fact. (This only works for Objective-C protocols where we know all conformance requirements represent inherited protocols, as opposed to constraints on associated types.) rdar://problem/33356098
43 lines
985 B
Objective-C
43 lines
985 B
Objective-C
@protocol Order2_ConsistentBaseProto
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- (void)consistent;
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@end
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@protocol Order4_ConsistentBaseProto
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- (void)consistent;
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@end
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@protocol Order1_FickleBaseProto
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- (void)fickle;
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@optional
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- (void)extraFickle;
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@end
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@protocol Order3_FickleBaseProto
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- (void)fickle;
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@optional
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- (void)extraFickle;
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@end
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@protocol Order5_FickleBaseProto
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- (void)fickle;
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@optional
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- (void)extraFickle;
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@end
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// The actual order here is determined by the protocol names.
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#if EXTRA_PROTOCOL_FIRST
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@protocol SubProto <Order1_FickleBaseProto, Order2_ConsistentBaseProto, Order4_ConsistentBaseProto>
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@end
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#elif EXTRA_PROTOCOL_MIDDLE
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@protocol SubProto <Order2_ConsistentBaseProto, Order3_FickleBaseProto, Order4_ConsistentBaseProto>
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@end
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#elif EXTRA_PROTOCOL_LAST
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@protocol SubProto <Order2_ConsistentBaseProto, Order4_ConsistentBaseProto, Order5_FickleBaseProto>
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@end
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#elif NO_EXTRA_PROTOCOLS
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@protocol SubProto <Order2_ConsistentBaseProto, Order4_ConsistentBaseProto>
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@end
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#else
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# error "Missing -D flag"
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#endif
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