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3a9b6dce9d
This is the default behavior. You can disable this by specifying the -clang-header-expose-decls= flag explicitly when generating the header
131 lines
3.0 KiB
C++
131 lines
3.0 KiB
C++
// RUN: %empty-directory(%t)
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// RUN: split-file %s %t
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// RUN: %target-swift-frontend -typecheck %t/use-optional.swift -typecheck -module-name UseOptional -enable-experimental-cxx-interop -emit-clang-header-path %t/UseOptional.h
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// RUN: %target-interop-build-clangxx -fno-exceptions -std=gnu++20 -c %t/optional-execution.cpp -I %t -o %t/swift-stdlib-execution.o
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// RUN: %target-build-swift %t/use-optional.swift -o %t/swift-stdlib-execution -Xlinker %t/swift-stdlib-execution.o -module-name UseOptional -Xfrontend -entry-point-function-name -Xfrontend swiftMain
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// RUN: %target-codesign %t/swift-stdlib-execution
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// RUN: %target-run %t/swift-stdlib-execution | %FileCheck %s
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// REQUIRES: executable_test
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//--- use-optional.swift
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@_expose(Cxx)
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public struct SmallStruct {
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public let x: Int16
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}
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@_expose(Cxx)
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public enum RawEnum: Int16 {
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case first = 1
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case second = 3
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}
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@_expose(Cxx)
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public class Klass {
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public let x: Int16
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init(_ x: Int16) {
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self.x = x
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print("init-Klass")
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}
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deinit {
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print("deinit-Klass")
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}
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}
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@_expose(Cxx)
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public func createCIntOpt(_ val: CInt) -> Optional<CInt> {
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return val
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}
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@_expose(Cxx)
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public func takeCIntOpt(_ val: Optional<CInt>) {
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print(String(describing: val))
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}
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@_expose(Cxx)
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public func createSmallStructOpt(_ val: Int16) -> Optional<SmallStruct> {
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return SmallStruct(x: val)
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}
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@_expose(Cxx)
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public func takeSmallStructOpt(_ val: Optional<SmallStruct>) {
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print(String(describing: val))
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}
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@_expose(Cxx)
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public func createKlassOpt(_ val: Int16) -> Klass? {
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return Klass(val)
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}
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@_expose(Cxx)
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public func takeKlassOpt(_ val: Klass?) {
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print(String(describing: val))
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}
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@_expose(Cxx)
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public func resetOpt<T>(_ val: inout Optional<T>) {
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val = .none
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}
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//--- optional-execution.cpp
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#include <cassert>
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#include "UseOptional.h"
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int main() {
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using namespace Swift;
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using namespace UseOptional;
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{
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auto val = createCIntOpt(2);
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takeCIntOpt(val);
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assert(val.isSome());
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assert(val.getUnsafelyUnwrapped() == 2);
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resetOpt(val);
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assert(val.isNone());
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takeCIntOpt(val);
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}
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// CHECK: Optional(2)
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// CHECK-NEXT: nil
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{
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auto val = createSmallStructOpt(0xFA);
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takeSmallStructOpt(val);
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assert(val.isSome());
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assert(val.getUnsafelyUnwrapped().getX() == 0xFA);
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resetOpt(val);
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assert(val.isNone());
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takeSmallStructOpt(val);
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}
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// CHECK-NEXT: Optional(UseOptional.SmallStruct(x: 250))
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// CHECK-NEXT: nil
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{
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auto val = createKlassOpt(-256);
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takeKlassOpt(val);
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assert(val.isSome());
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auto ptr = val.getUnsafelyUnwrapped();
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assert(ptr.getX() == -256);
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resetOpt(val);
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assert(val.isNone());
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takeKlassOpt(val);
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}
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// CHECK-NEXT: init-Klass
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// CHECK-NEXT: Optional(UseOptional.Klass)
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// CHECK-NEXT: nil
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// CHECK-NEXT: deinit-Klass
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{
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auto val = RawEnum::init(1);
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assert(val.isSome());
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assert(val.getUnsafelyUnwrapped() == RawEnum::first);
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assert(val.getUnsafelyUnwrapped().getRawValue() == 1);
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auto val2 = RawEnum::init(2);
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assert(val2.isNone());
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}
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return 0;
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}
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