Swift compiler should warn about unnecessary casts
| Originator: | fluidsonic | ||
| Number: | rdar://21669528 | Date Originated: | 2015-07-03 |
| Status: | Open | Resolved: | |
| Product: | Developer Tools | Product Version: | Xcode 7 Beta 2 |
| Classification: | Enhancement | Reproducible: | Always |
Summary:
The following code has an unnecessary cast from [UIView] to [UIView] which should cause a compiler warning:
import UIKit
func test(view: UIView) {
for _ in view.subviews as [UIView] {
// ...
}
}
Steps to Reproduce:
1. Place the code from the description into a playground.
Expected Results:
The unnecessary cast in line 4 should cause a warning.
Actual Results:
The unnecessary cast in line 4 does not cause a warning.
Comments
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