mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 22:02:23 +01:00
Richard Smith
26e23eac10
Unify code paths for importing classes by name and importing them indirectly when their type is referenced. Switch to using the general type import machinery to import all type declarations, which allows typedef declarations naming importable types to be used too. Fix up handling of error cases to consistently only produce an Error InstId after actually producing an error message, so that we can produce exactly one diagnostic in failure cases. Remove TODO error for unions that previously was only produced when importing them indirectly, not when importing them by name. Import of unions is exactly as complete / incomplete as import of other class types, so treating them differently doesn't seem necessary.
50 lines
1.8 KiB
Plaintext
50 lines
1.8 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/uint.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/include_paths.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/include_paths.carbon
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// --- include_stddef.h
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// Check that include paths are properly set up when running Clang.
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// Clang provides <stddef.h> as a builtin header.
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#include <stddef.h>
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ptrdiff_t GetSize();
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inline int GetSizeAsInt() { return GetSize(); }
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// --- import_stddef_indirectly.carbon
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library "[[@TEST_NAME]]";
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import Cpp library "include_stddef.h";
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// TODO: `fn CallGetSize() -> Cpp.ptrdiff_t {`
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fn CallGetSize() -> i32 {
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// TODO: Call `Cpp.GetSize` directly once we can import the types `long` and `long long`.
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return Cpp.GetSizeAsInt() as i32;
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}
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// --- fail_todo_import_stddef_directly.carbon
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library "[[@TEST_NAME]]";
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import Cpp library "stddef.h";
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// TODO: Once we can import `unsigned long` / `unsigned long long`, this should work.
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// CHECK:STDERR: fail_todo_import_stddef_directly.carbon:[[@LINE+7]]:8: error: semantics TODO: `Unsupported: Type declaration: size_t` [SemanticsTodo]
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// CHECK:STDERR: var n: Cpp.size_t = 42;
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// CHECK:STDERR: ^~~~~~~~~~
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// CHECK:STDERR: fail_todo_import_stddef_directly.carbon:[[@LINE+4]]:8: note: in `Cpp` name lookup for `size_t` [InCppNameLookup]
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// CHECK:STDERR: var n: Cpp.size_t = 42;
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// CHECK:STDERR: ^~~~~~~~~~
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// CHECK:STDERR:
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var n: Cpp.size_t = 42;
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