[SR-12618] Compiler crashes when property wrapper with autoclosure is initialized #55062
Description
| Previous ID | SR-12618 |
| Radar | rdar://problem/62894484 |
| Original Reporter | Koninis (JIRA User) |
| Type | Bug |
Environment
Apple Swift version 5.1.3 (swiftlang-1100.0.282.1 clang-1100.0.33.15)
Target: x86_64-apple-darwin18.7.0
Additional Detail from JIRA
| Votes | 0 |
| Component/s | Compiler |
| Labels | Bug |
| Assignee | None |
| Priority | Medium |
md5: 8fd48a17dbccfaadc96b152428b1c903
Issue Description:
The follow code crashes the compiler:
@propertyWrapper
enum Lazy<Value> {
case uninitialized(() -> Value)
case initialized(Value)
init(wrappedValue: @autoclosure @escaping () -> Value) {
self = .uninitialized(wrappedValue)
}
var wrappedValue: Value {
mutating get {
switch self {
case .uninitialized(let initializer):
let value = initializer()
return value
case .initialized(let value):
return value
}
}
set {
}
}
}
func getBalanceFromDataBase() -> Int {
return 100_000
}
struct BankAccount {
@Lazy var balance: Int
init() {
balance = getBalanceFromDataBase()
}
}