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carbon-lang/toolchain/check/testdata/interop/cpp/class/export/method.carbon
T
Nicholas Bishop 3f63cf4b10 Support C++ calling Carbon functions with ref parameters (#7107)
When creating the C++ thunk, make the parameters references if the
corresponding callee parameters are `ref`s.

When creating the Carbon thunk, tag the call arguments as `ref` if the
corresponding callee parameters are `ref`s.
2026-04-23 23:45:26 +00:00

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// 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/int.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/export/method.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/interop/cpp/class/export/method.carbon
// --- static_method.carbon
library "[[@TEST_NAME]]";
import Cpp;
class C {
fn M();
}
inline Cpp '''
void F() {
Carbon::C::M();
}
''';
// --- method_lvalue.carbon
library "[[@TEST_NAME]]";
import Cpp;
class C {
fn M[self: Self]();
}
inline Cpp '''
void F() {
Carbon::C c;
c.M();
}
''';
// --- method_rvalue.carbon
library "[[@TEST_NAME]]";
import Cpp;
class C {
fn M[self: Self]();
}
inline Cpp '''
void F() {
Carbon::C().M();
}
''';
// --- ref_method_lvalue.carbon
library "[[@TEST_NAME]]";
import Cpp;
class C {
fn M[ref self: Self]();
}
inline Cpp '''
void F() {
Carbon::C c;
c.M();
}
''';
// --- todo_ref_method_rvalue.carbon
library "[[@TEST_NAME]]";
import Cpp;
class C {
fn M[ref self: Self]();
}
inline Cpp '''
void F() {
// TODO: this should be disallowed.
Carbon::C().M();
}
''';