carbon-lang/toolchain/check/testdata/interop/cpp/class/roundtrip.carbon

// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/none.carbon
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP:   bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/interop/cpp/class/roundtrip.carbon
// TIP: To dump output, run:
// TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/interop/cpp/class/roundtrip.carbon

// --- carbon_to_cpp_to_carbon.carbon
library "[[@TEST_NAME]]";

import Cpp;

class C {}

inline Cpp '''
using CAlias = Carbon::C;
''';

fn F(p: C*) {
  let unused q: Cpp.CAlias* = p;
}

// --- cpp_to_carbon_to_cpp.carbon
library "[[@TEST_NAME]]";

import Cpp;

inline Cpp '''
class C {};
''';

alias CAlias = Cpp.C;

inline Cpp '''
auto F(C *p) -> Carbon::CAlias* {
  return p;
}
''';