Allow inheritance from resilient classes with missing members #24881
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When a class has missing vtable entries, we don’t allow it to be subclassed. This is unnecessarily restrictive for resilient classes, and @_implementationOnly imports now make missing vtable entries much more common. This commit carves out an exception to that rule for resilient classes. Fixes <rdar://problem/50902125>.
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@swift-ci please smoke test |
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Ah, nice catch. |
jrose-apple
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May 19, 2019
beccadax
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May 20, 2019
…den-method Allow inheritance from resilient classes with missing members
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When a class has missing vtable entries, we don’t allow it to be subclassed. This is unnecessarily restrictive for resilient classes, and @_implementationOnly imports now make missing vtable entries much more common. This PR carves out an exception to that rule for resilient classes.
Fixes rdar://problem/50902125.