swiftlang-602.0.51.1: Crash finding best solution for return type overload selected via tuple projection
| Originator: | rix.rob | ||
| Number: | rdar://20735374 | Date Originated: | 28-Apr-2015 06:01 PM |
| Status: | Open | Resolved: | |
| Product: | Developer Tools | Product Version: | Xcode-beta (6E14) |
| Classification: | Crash/Hang/Data Loss | Reproducible: | Always |
Summary:
Two functions overloaded on return type, one of which returns a pair of values, the other returns the first element of that pair and calls the other: crash.
Steps to Reproduce:
Compile this:
func f(x: Int) -> Int {
return f(x).0
}
func f(x: Int) -> (Int, Int) {
return (0, 1)
}
Expected Results:
Error about ambiguity of .0, or success, or a runtime infinite loop.
Actual Results:
Compiler crash.
Regression:
N/A
Notes:
I’m working around this by using destructuring tuple assignment:
let (v, _) = f(x)
return v
Comments
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