Files
swift-mirror/test/Interop/Cxx/stdlib/use-std-optional.swift
Egor Zhdan b330376a43 [cxx-interop] Pull changes from swift-6 compat mode into swift-5.9
This gives projects using C++ interop compat mode 5.9 access to the new features such as virtual methods and move-only types.

rdar://126485814
2024-04-24 11:53:31 +01:00

56 lines
1.6 KiB
Swift

// RUN: %target-run-simple-swift(-I %S/Inputs -Xfrontend -cxx-interoperability-mode=swift-5.9)
// RUN: %target-run-simple-swift(-I %S/Inputs -Xfrontend -cxx-interoperability-mode=swift-6)
// RUN: %target-run-simple-swift(-I %S/Inputs -Xfrontend -cxx-interoperability-mode=upcoming-swift)
// RUN: %target-run-simple-swift(-I %S/Inputs -Xfrontend -cxx-interoperability-mode=upcoming-swift -Xcc -std=c++20)
//
// REQUIRES: executable_test
import StdlibUnittest
import StdOptional
import CxxStdlib
var StdOptionalTestSuite = TestSuite("StdOptional")
StdOptionalTestSuite.test("pointee") {
let nonNilOpt = getNonNilOptional()
let pointee = nonNilOpt.pointee
expectEqual(123, pointee)
#if !os(Linux) // crashes on Ubuntu 18.04 (rdar://113414160)
var modifiedOpt = getNilOptional()
modifiedOpt.pointee = 777
expectEqual(777, modifiedOpt.pointee)
#endif
}
StdOptionalTestSuite.test("std::optional => Swift.Optional") {
let nonNilOpt = getNonNilOptional()
let swiftOptional = Optional(fromCxx: nonNilOpt)
expectNotNil(swiftOptional)
expectEqual(123, swiftOptional!)
let nilOpt = getNilOptional()
let swiftNil = Optional(fromCxx: nilOpt)
expectNil(swiftNil)
}
StdOptionalTestSuite.test("std::optional hasValue/value") {
let nonNilOpt = getNonNilOptional()
expectTrue(nonNilOpt.hasValue)
expectEqual(123, nonNilOpt.value!)
let nilOpt = getNilOptional()
expectFalse(nilOpt.hasValue)
expectNil(nilOpt.value)
}
StdOptionalTestSuite.test("std::optional as ExpressibleByNilLiteral") {
let res1 = takesOptionalInt(nil)
expectFalse(res1)
let res2 = takesOptionalString(nil)
expectFalse(res2)
}
runAllTests()