Details
-
Type:
Bug
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Status: Closed
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Priority:
Medium
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Resolution: Duplicate
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Component/s: Compiler
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Labels:
-
Environment:
Swift version 4.2-dev (LLVM 95345677bd, Clang daefc772c1, Swift 76c264e9a1)
Target: x86_64-apple-darwin17.4.0
Description
This example doesn't compile:
struct S {
@discardableResult
func foo() -> () -> String { fatalError() }
}
let s = S()
s.foo() // error: Expression resolves to an unused function
But really it should. Interestingly enough it does compile if it's a top-level function:
@discardableResult
func foo() -> () -> String { fatalError() }
foo()