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// RUN: %target-run-simple-swift(-Xfrontend -sil-verify-all)
// RUN: %target-run-simple-swift(-O -Xfrontend -sil-verify-all)
// REQUIRES: executable_test
import StdlibUnittest
defer { runAllTests() }
var Tests = TestSuite("MoveOnlyTests")
@_moveOnly
struct FD {
var a = LifetimeTracked(0)
deinit {
}
}
Tests.test("simple deinit called once") {
do {
let s = FD()
}
expectEqual(0, LifetimeTracked.instances)
}
Tests.test("ref element addr destroyed once") {
class CopyableKlass {
var fd = FD()
}
func assignCopyableKlass(_ x: CopyableKlass) {
x.fd = FD()
}
do {
let x = CopyableKlass()
assignCopyableKlass(x)
}
expectEqual(0, LifetimeTracked.instances)
}
var global = FD()
Tests.test("global destroyed once") {
do {
global = FD()
}
expectEqual(0, LifetimeTracked.instances)
}
@_moveOnly
struct FD2 {
var field = 5
static var count = 0
init() { FD2.count += 1 }
deinit {
FD2.count -= 1
print("In deinit!")
}
func use() {}
}
Tests.test("deinit not called in init when assigned") {
class FDHaver {
var fd: FD2
init() {
self.fd = FD2()
}
}
class FDHaver2 {
var fd: FD2
init() {
self.fd = FD2()
self.fd = FD2()
self.fd = FD2()
self.fd.use()
}
}
do {
let haver = FDHaver()
let _ = haver
}
do {
let haver = FDHaver2()
let _ = haver
}
expectEqual(0, FD2.count)
}
Tests.test("empty struct") {
@_moveOnly
struct EmptyStruct {
func doSomething() {}
var value: Bool { false }
}
let e = EmptyStruct()
e.doSomething()
if e.value {
let _ = consume e
}
}
protocol P {
var name: String { get }
}
Tests.test("AddressOnly") {
class Klass : P {
var name: String { "myName" }
}
@_moveOnly
struct S<T : P> {
var t: T
}
let e = S(t: Klass())
expectEqual(e.t.name, "myName")
func testGeneric<T : P>(_ x: borrowing S<T>) {
expectEqual(x.t.name, "myName")
}
testGeneric(e)
if e.t.name.count == 5 {
let _ = consume e
}
}
// coverage for rdar://117082469
Tests.test("global borrowing access") {
class Retainable { var data = 0 }
struct HasStatic : ~Copyable {
var x = 1
var y = Retainable()
static let a = HasStatic()
static var b = HasStatic()
}
// test the let 'a'
expectEqual(HasStatic.a.x, 1)
expectEqual(HasStatic.a.y.data, 0)
// test the var 'b'
expectEqual(HasStatic.b.x, 1)
HasStatic.b.x += 10
expectEqual(HasStatic.b.x, 11)
expectEqual(HasStatic.b.y.data, 0)
HasStatic.b.y.data += 121
expectEqual(HasStatic.b.y.data, 121)
}
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