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// REQUIRES: executable_test
// RUN: %target-run-simple-swift(-cxx-interoperability-mode=default -Xfrontend -disable-availability-checking -I %S/Inputs)
import StdlibUnittest
import Inheritance
// A function whose explicit type annotations specializes the cxxCast function.
//
// In Swift, the generic type parameters of cxxCast I and O should be respectively instantiated to SubT and BaseT.
// However, since these are foreign reference types, this instantiates (and calls) cxxCast<SubT *, BaseT *> in C++.
func cast(_ s: SubT) -> BaseT {
return cxxCast(s)
}
var TemplatingTestSuite = TestSuite("Foreign references work with templates")
TemplatingTestSuite.test("SubT") {
let s: SubT = SubT.getSubT()
assert(!s.isBase)
let sc: BaseT = cast(s)
assert(!sc.isBase)
let sx: BaseT = cxxCast(s) // should instantiate I to SubT and O to BaseT
assert(!sc.isBase)
}
TemplatingTestSuite.test("BaseT") {
let b: BaseT = BaseT.getBaseT()
assert(b.isBase)
let bc: BaseT = cxxCast(b) // should instantiate I and O both to BaseT
assert(bc.isBase)
}
TemplatingTestSuite.test("DerivedOutOfOrder") {
let d = DerivedOutOfOrder.getInstance()
expectEqual(123, d.baseField)
expectEqual(456, d.derivedField)
expectEqual(789, d.leafField)
}
runAllTests()
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