[stdlib] Remove the unnecessary compactMap overload #14769
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This particular overload of compactMap was mechanically copied from the `flatMap` while implementing SE-0187, but as community members correctly noticed on the forum thread [here](https://forums.swift.org/t/why-is-there-a-collection-flatmap-that-takes-a-closure-returning-string/10141), there is no code that we should be backward compatible with, since `compactMap` has only been introduced recently. After applying this change, the following code is correctly ambiguous again: ```swift [].compactMap { _ in nil } // error: 'nil' requires a contextual type ``` as opposed to: ```swift [].flatMap { _ in nil } // r0 : [String] = [] ``` Fixes: https://bugs.swift.org/browse/SR-7052
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@swift-ci Please smoke test |
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@swift-ci Please Test Source Compatibility |
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Simplest solution ever :D |
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This particular overload of compactMap was mechanically copied from the
flatMapwhile implementing SE-0187, but as community members correctly noticed on the forum thread here, there is no code that we should be backward compatible with, sincecompactMaphas only been introduced recently.After applying this change, the following code is correctly ambiguous again:
as opposed to:
Fixes: https://bugs.swift.org/browse/SR-7052