Mark _MutablePairHandle and _MutablePair as @usableFromInline #1768
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@swift-ci test |
phausler
approved these changes
Nov 15, 2018
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@slavapestov probably knows, but I suspect the diagnostics for |
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@swift-ci test linux and merge |
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@tkremenek @phausler That's right. We ran out of time in 4.2 so we didn't implement @usableFromInline checks fully. If you got it wrong you could get a linker error. In 5.0 we implemented it but staged it in so that it doesn't break source compatibility in the cases that worked on accident. |
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Under Swift 5 mode we currently get the following error:
This change is technically ABI impacting for corelibs-Foundation.