[swift-corelibs-dev] IndexPath performance

[Stephan Tolksdorf]

Hi,

IndexPath is currently implemented using an [Int] array that is bridged to
an NSIndexPath only on demand. Since IndexPath values are primarily used
together with Objective-C APIs, wouldn't it be better to implement
IndexPath directly as an NSIndexPath wrapper, in order to avoid the
overhead of temporary array instances?

- Stephan
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