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// RUN: %target-run-simple-swift(-Xfrontend -enable-experimental-move-only)
// RUN: %target-run-simple-swift(-O -Xfrontend -sil-verify-all -Xfrontend -enable-experimental-move-only)
// REQUIRES: executable_test
// Verify that iterating through the fields of an object whose class has
// a move-only field does not trap from trying to reflect and copy those
// move-only fields.
@_moveOnly
public struct MO {
var x: Int8 = 0
var y: Int8 = 0
var z: Int8 = 0
deinit { print("destroyed MO") }
}
public class MOHaver {
var s: String = "hello"
var mo: MO = MO()
var b: Int8 = 42
var c: Any.Type = MOHaver.self
}
// CHECK-LABEL: doing nongeneric
print("doing nongeneric")
do {
let k = MOHaver()
let mirror = Mirror(reflecting: k)
// CHECK-NEXT: s: hello
// Whether this actually prints the value of `k.mo` or not is irrelevant
// to the test; we care that attempting to reflect the field does not trap
// copying a noncopyable field.
// CHECK-NEXT: mo:
// CHECK-NEXT: b: 42
// CHECK-NEXT: c: {{.*}}.MOHaver
for c in mirror.children {
print("\(c.label!): \(c.value)")
}
// CHECK-NEXT: destroyed MO
}
// CHECK-NEXT: done with nongeneric
print("done with nongeneric")
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