mirror of
https://github.com/carbon-language/carbon-lang.git
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Nicholas Bishop
3f63cf4b10
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.
127 lines
3.3 KiB
Plaintext
127 lines
3.3 KiB
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/int.carbon
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//
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// AUTOUPDATE
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// TIP: To test this file alone, run:
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// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/interop/cpp/function/export/function.carbon
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// TIP: To dump output, run:
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// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/interop/cpp/function/export/function.carbon
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// --- other.carbon
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package Other;
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fn F1() {}
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fn F2() -> i32 { return 0; }
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fn F3(_: i32) {}
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fn HasGenericArg(T:! type, a: T) { a; }
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fn HasDeducedArg[T:! type](a: T) { a; }
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// --- function.carbon
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library "[[@TEST_NAME]]";
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import Other;
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import Cpp inline '''
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void G() {
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Carbon::Other::F1();
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}
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''';
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// --- return_int.carbon
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library "[[@TEST_NAME]]";
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import Other;
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import Cpp inline '''
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int G() {
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return Carbon::Other::F2();
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}
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''';
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// --- args.carbon
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library "[[@TEST_NAME]]";
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import Other;
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import Cpp inline '''
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void G() {
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Carbon::Other::F3(123);
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}
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''';
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// --- ref_arg.carbon
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library "[[@TEST_NAME]]";
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import Cpp;
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fn F(ref n: i32);
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inline Cpp '''
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void G() {
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int n = 0;
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Carbon::F(n);
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}
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''';
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// --- using.carbon
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library "[[@TEST_NAME]]";
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import Cpp;
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fn F();
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inline Cpp '''
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using Carbon::F;
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void G() { F(); }
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''';
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// --- fail_todo_generic.carbon
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library "[[@TEST_NAME]]";
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// CHECK:STDERR: fail_todo_generic.carbon:[[@LINE+5]]:1: in import [InImport]
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// CHECK:STDERR: other.carbon:7:1: error: semantics TODO: `unsupported: C++ calling a Carbon function with generic parameters` [SemanticsTodo]
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// CHECK:STDERR: fn HasGenericArg(T:! type, a: T) { a; }
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// CHECK:STDERR:
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import Other;
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import Cpp inline '''
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void G() {
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// CHECK:STDERR: fail_todo_generic.carbon:[[@LINE+8]]:18: error: no member named 'HasGenericArg' in namespace 'Carbon::Other' [CppInteropParseError]
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// CHECK:STDERR: 20 | Carbon::Other::HasGenericArg<int>(123);
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// CHECK:STDERR: | ^~~~~~~~~~~~~
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// CHECK:STDERR:
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// CHECK:STDERR: fail_todo_generic.carbon:[[@LINE+4]]:35: error: expected '(' for function-style cast or type construction [CppInteropParseError]
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// CHECK:STDERR: 20 | Carbon::Other::HasGenericArg<int>(123);
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// CHECK:STDERR: | ~~~^
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// CHECK:STDERR:
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Carbon::Other::HasGenericArg<int>(123);
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}
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''';
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// --- fail_todo_deduced.carbon
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library "[[@TEST_NAME]]";
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// CHECK:STDERR: fail_todo_deduced.carbon:[[@LINE+5]]:1: in import [InImport]
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// CHECK:STDERR: other.carbon:8:1: error: semantics TODO: `unsupported: C++ calling a Carbon function with generic parameters` [SemanticsTodo]
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// CHECK:STDERR: fn HasDeducedArg[T:! type](a: T) { a; }
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// CHECK:STDERR:
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import Other;
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import Cpp inline '''
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void G() {
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// CHECK:STDERR: fail_todo_deduced.carbon:[[@LINE+4]]:18: error: no member named 'HasDeducedArg' in namespace 'Carbon::Other' [CppInteropParseError]
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// CHECK:STDERR: 16 | Carbon::Other::HasDeducedArg(123);
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// CHECK:STDERR: | ^~~~~~~~~~~~~
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// CHECK:STDERR:
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Carbon::Other::HasDeducedArg(123);
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}
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''';
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