toolchain/check/testdata/interop/cpp/function/export/function.carbon - trunk - githubmirror/carbon-lang

toolchain/check/testdata/interop/cpp/function/export/function.carbon

113 строк2 KB

Chandler Carruth

Replace `:!` binding syntax with phase keywords and contextual defaults (#7479)

11 июл 2026, 04:22

11 июл 2026, 04:228be274c

// 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/function/export/function.carbon
// TIP: To dump output, run:
// TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/interop/cpp/function/export/function.carbon

// --- other.carbon

package Other;
fn F1() {}
fn F2() -> i32 { return 0; }
fn F3(_: i32) {}

fn HasGenericArg(generic T: type, a: T) { a; }
fn HasDeducedArg[T: type](a: T) { a; }

// --- function.carbon

library "[[@TEST_NAME]]";

import Other;
import Cpp inline '''
void G() {
  Carbon::Other::F1();
}
''';

// --- return_int.carbon

library "[[@TEST_NAME]]";

import Other;
import Cpp inline '''
int G() {
  return Carbon::Other::F2();
}
''';

// --- args.carbon

library "[[@TEST_NAME]]";

import Other;
import Cpp inline '''
void G() {
  Carbon::Other::F3(123);
}
''';

// --- ref_arg.carbon

library "[[@TEST_NAME]]";

import Cpp;

fn F(ref n: i32);

inline Cpp '''
void G() {
  int n = 0;
  Carbon::F(n);
}
''';

// --- using.carbon

library "[[@TEST_NAME]]";

import Cpp;

fn F();

inline Cpp '''
using Carbon::F;
void G() { F(); }
''';

// --- fail_todo_generic.carbon

library "[[@TEST_NAME]]";

// CHECK:STDERR: fail_todo_generic.carbon:[[@LINE+9]]:1: in import [InImport]
// CHECK:STDERR: other.carbon:7:1: error: 1 argument passed to function expecting 2 arguments [CallArgCountMismatch]
// CHECK:STDERR: fn HasGenericArg(generic T: type, a: T) { a; }
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_todo_generic.carbon:[[@LINE+5]]:1: in import [InImport]
// CHECK:STDERR: other.carbon:7:1: note: calling function declared here [InCallToEntity]
// CHECK:STDERR: fn HasGenericArg(generic T: type, a: T) { a; }
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR:
import Other;
import Cpp inline '''
void G() {
  Carbon::Other::HasGenericArg<int>(123);
}
''';

// --- deduced.carbon

library "[[@TEST_NAME]]";

import Other;
import Cpp inline '''
void G() {
  Carbon::Other::HasDeducedArg(123);
}
''';