Questions tagged [swift]
For questions about Swift's design, or languages which are closely related to Swift
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When can widening conversions cause problems?
I can understand the reason for raising a warning or error when you try to convert a wider integer type to a narrower one, due to the loss of precision.
Some C compilers will warn about this:
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How could a language support adding new types to the middle of the inheritance tree in an ABI-stable way?
I've mentioned before that Swift evolution is somewhat limited by the fact that it is now ABI-stable. One recent example that caught my attention was PermutableCollection.
Currently, the Collection ...
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How to avoid hidden performance problems in functional interfaces?
Swift has a protocol Sequence<Element>, which is used to support for-in loops. It has ...
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Why color literals?
One of the stranger features of Swift is color literals -- invocations of the #colorLiteral macro that look like colored squares in Xcode.
In this image, the macro ...
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