mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 22:02:23 +01:00
Richard Smith
7d89ac98c7
Instead of building one Clang `ASTContext` per compilation, the `--share-cpp-ast` flag causes us to build a single `ASTContext` and share it across all contexts. One new abstraction is added: `CppDomain` represents the Carbon-side view of a Clang AST that might be shared across multiple `SemIR::File`s. This object owns the Clang instance and the AST. For now, we have no isolation between the C++ state exposed to different Carbon compilations, and we have no multiplexing of generated LLVM IR from C++ into different Carbon compilations, so the mode is not usable yet. The plan is to keep it behind a flag until it's ready. Assisted-by: Gemini via Antigravity
90 lines
3.6 KiB
Plaintext
90 lines
3.6 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/none.carbon
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// EXTRA-ARGS: --clang-arg=--std=c++20
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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/basics/inline/modules.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/basics/inline/modules.carbon
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// --- fail_export_module_in_inline_cpp.carbon
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library "[[@TEST_NAME]]";
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// TODO: This diagnostic isn't very good.
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import Cpp inline '''
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// CHECK:STDERR: fail_export_module_in_inline_cpp.carbon:[[@LINE+7]]:8: error: module declaration must occur at the start of the translation unit [CppInteropParseError]
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// CHECK:STDERR: 13 | export module Foo;
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// CHECK:STDERR: | ^
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// CHECK:STDERR: <carbon Cpp imports>:1:1: note: add 'module;' to the start of the file to introduce a global module fragment [CppInteropParseNote]
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// CHECK:STDERR: 1 | ;
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// CHECK:STDERR: | ^
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// CHECK:STDERR:
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export module Foo;
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''';
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// --- fail_module_in_inline_cpp.carbon
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library "[[@TEST_NAME]]";
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// TODO: This diagnostic isn't very good.
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import Cpp inline '''
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// CHECK:STDERR: fail_module_in_inline_cpp.carbon:[[@LINE+11]]:1: error: module declaration must occur at the start of the translation unit [CppInteropParseError]
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// CHECK:STDERR: 17 | module Foo;
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// CHECK:STDERR: | ^
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// CHECK:STDERR: <carbon Cpp imports>:1:1: note: add 'module;' to the start of the file to introduce a global module fragment [CppInteropParseNote]
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// CHECK:STDERR: 1 | ;
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// CHECK:STDERR: | ^
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// CHECK:STDERR:
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// CHECK:STDERR: fail_module_in_inline_cpp.carbon:[[@LINE+4]]:8: error: module 'Foo' not found [CppInteropParseError]
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// CHECK:STDERR: 17 | module Foo;
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// CHECK:STDERR: | ^~~~
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// CHECK:STDERR:
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module Foo;
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''';
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// --- fail_global_module_in_inline_cpp.carbon
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library "[[@TEST_NAME]]";
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// TODO: This diagnostic isn't very good.
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import Cpp inline '''
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// CHECK:STDERR: fail_global_module_in_inline_cpp.carbon:[[@LINE+4]]:1: error: 'module;' introducing a global module fragment can appear only at the start of the translation unit [CppInteropParseError]
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// CHECK:STDERR: 10 | module;
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// CHECK:STDERR: | ^~~~~~~
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// CHECK:STDERR:
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module;
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int n;
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// CHECK:STDERR: fail_global_module_in_inline_cpp.carbon:[[@LINE+11]]:1: error: module declaration must occur at the start of the translation unit [CppInteropParseError]
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// CHECK:STDERR: 25 | module Foo;
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// CHECK:STDERR: | ^
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// CHECK:STDERR: <carbon Cpp imports>:1:1: note: add 'module;' to the start of the file to introduce a global module fragment [CppInteropParseNote]
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// CHECK:STDERR: 1 | ;
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// CHECK:STDERR: | ^
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// CHECK:STDERR:
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// CHECK:STDERR: fail_global_module_in_inline_cpp.carbon:[[@LINE+4]]:8: error: module 'Foo' not found [CppInteropParseError]
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// CHECK:STDERR: 25 | module Foo;
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// CHECK:STDERR: | ^~~~
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// CHECK:STDERR:
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module Foo;
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''';
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// --- fail_import_in_inline_cpp.carbon
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library "[[@TEST_NAME]]";
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// TODO: Also test that a valid module import works.
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import Cpp inline '''
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// CHECK:STDERR: fail_import_in_inline_cpp.carbon:[[@LINE+4]]:8: error: 'file_that_does_not_exist.h' file not found [CppInteropParseError]
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// CHECK:STDERR: 10 | import "file_that_does_not_exist.h";
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// CHECK:STDERR: | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// CHECK:STDERR:
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import "file_that_does_not_exist.h";
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''';
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