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https://github.com/carbon-language/carbon-lang.git
synced 2026-11-15 11:28:31 +00:00
Richard Smith
09b79784dc
When exporting `X` from Carbon package `Foo`, expose it to C++ with fully-qualified name `Carbon::Foo::X`, not simply `Carbon::X`. This ensures that C++ mangled names properly distinguish between same-named Carbon entities in different packages. Name *lookup* into `Carbon::` still uses the same rules as before: it finds what a `package.` lookup would find in Carbon. So `X` is named from C++ as `Carbon::X` still, and a lookup for `Carbon::Foo` fails, even though `X`'s "true name" is now `Carbon::Foo::X`. Assisted-by: Gemini via Antigravity
132 lines
2.9 KiB
Plaintext
132 lines
2.9 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/class/export/method.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/class/export/method.carbon
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// --- static_method.carbon
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library "[[@TEST_NAME]]";
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import Cpp;
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class StaticMethodClass {
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fn M();
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}
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inline Cpp '''
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void StaticMethod() {
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Carbon::StaticMethodClass::M();
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}
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''';
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// --- method_lvalue.carbon
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library "[[@TEST_NAME]]";
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import Cpp;
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class MethodLValueClass {
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fn M(self);
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}
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inline Cpp '''
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void MethodLValue() {
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Carbon::MethodLValueClass c;
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c.M();
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}
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''';
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// --- method_rvalue.carbon
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library "[[@TEST_NAME]]";
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import Cpp;
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class MethodRValueClass {
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fn M(self);
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}
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inline Cpp '''
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void MethodRValue() {
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Carbon::MethodRValueClass().M();
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}
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''';
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// --- method_const_lvalue.carbon
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library "[[@TEST_NAME]]";
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import Cpp;
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class MethodConstLValueClass {
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fn M(self);
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}
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inline Cpp '''
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void MethodConstLValue(const Carbon::MethodConstLValueClass& c) {
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c.M();
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}
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''';
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// --- ref_method_lvalue.carbon
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library "[[@TEST_NAME]]";
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import Cpp;
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class RefMethodLValueClass {
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fn M(ref self);
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}
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inline Cpp '''
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void RefMethodLValue() {
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Carbon::RefMethodLValueClass c;
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c.M();
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}
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''';
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// --- fail_ref_method_rvalue.carbon
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library "[[@TEST_NAME]]";
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import Cpp;
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class RefMethodRValueClass {
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fn M(ref self);
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}
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inline Cpp '''
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void RefMethodRValue() {
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// CHECK:STDERR: fail_ref_method_rvalue.carbon:[[@LINE+3]]:3: error: 'this' argument to member function 'M' is an rvalue, but function has non-const lvalue ref-qualifier [CppInteropParseError]
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// CHECK:STDERR: fail_ref_method_rvalue.carbon:[[@LINE-6]]:17: note: 'M' declared here [CppInteropParseNote]
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// CHECK:STDERR:
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Carbon::RefMethodRValueClass().M();
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}
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''';
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// --- fail_ref_method_const_lvalue.carbon
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library "[[@TEST_NAME]]";
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import Cpp;
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class RefMethodConstLValueClass {
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fn M(ref self);
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}
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inline Cpp '''
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void RefMethodConstLValue(const Carbon::RefMethodConstLValueClass& c) {
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// CHECK:STDERR: fail_ref_method_const_lvalue.carbon:[[@LINE+3]]:3: error: 'this' argument to member function 'M' has type 'const Carbon::RefMethodConstLValueClass' (aka 'const Carbon::Main::RefMethodConstLValueClass'), but function is not marked const [CppInteropParseError]
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// CHECK:STDERR: fail_ref_method_const_lvalue.carbon:[[@LINE-6]]:17: note: 'M' declared here [CppInteropParseNote]
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// CHECK:STDERR:
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c.M();
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}
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''';
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// --- method_alias.carbon
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library "[[@TEST_NAME]]";
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import Cpp;
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class A {
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fn F();
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}
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alias G = A.F;
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inline Cpp '''
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void call() { Carbon::G(); }
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''';
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