mirror of
https://github.com/apple/swift.git
synced 2025-12-21 12:14:44 +01:00
6ee44f09b4
These allow multi-statement `if`/`switch` expression branches that can produce a value at the end by saying `then <expr>`. This is gated behind `-enable-experimental-feature ThenStatements` pending evolution discussion.
33 lines
644 B
Swift
33 lines
644 B
Swift
// RUN: %empty-directory(%t)
|
|
// RUN: %target-swiftc_driver -Xfrontend -enable-experimental-feature -Xfrontend ThenStatements -o %t/a.out %s
|
|
// RUN: %target-codesign %t/a.out
|
|
// RUN: %target-run %t/a.out | %FileCheck %s
|
|
|
|
// REQUIRES: executable_test
|
|
|
|
// Required for experimental features
|
|
// REQUIRES: asserts
|
|
|
|
func testDefer(_ x: Bool) -> Int {
|
|
defer {
|
|
print("defer fn")
|
|
}
|
|
let x = if x {
|
|
defer {
|
|
print("defer if")
|
|
}
|
|
print("enter if")
|
|
then 0
|
|
} else {
|
|
1
|
|
}
|
|
print("after if")
|
|
return x
|
|
}
|
|
_ = testDefer(true)
|
|
|
|
// CHECK: enter if
|
|
// CHECK-NEXT: defer if
|
|
// CHECK-NEXT: after if
|
|
// CHECK-NEXT: defer fn
|