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https://github.com/carbon-language/carbon-lang.git
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David Blaikie
0f5de499d6
Roundtrip (export/reimport) class declarations The remapping was previously implemented using name_scopes, which aren't created for class declarations, only definitions - causing the reimport to import a fresh copy of the type that mismatched with the original (as seen in the test baseline). By changing the mapping to use the reverse part of the clang_decls mapping this should generalize better (& we probably should further migrate to that mapping). Though it did trip over some issue with exactly which instruction is used as the key in the clang_decls map - this change moves towards standardizing on the first decl id of the class as its map key.
60 lines
1.2 KiB
Plaintext
60 lines
1.2 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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//
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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/roundtrip.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/roundtrip.carbon
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// --- carbon_to_cpp_to_carbon.carbon
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library "[[@TEST_NAME]]";
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import Cpp;
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class C {}
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inline Cpp '''
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using CAlias = Carbon::C;
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''';
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fn F(p: C*) {
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let unused q: Cpp.CAlias* = p;
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}
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// --- cpp_to_carbon_to_cpp.carbon
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library "[[@TEST_NAME]]";
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import Cpp;
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inline Cpp '''
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class C {};
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''';
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alias CAlias = Cpp.C;
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inline Cpp '''
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auto F(C *p) -> Carbon::CAlias* {
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return p;
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}
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''';
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// --- import.carbon
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library "[[@TEST_NAME]]";
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import Cpp;
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class Class1;
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inline Cpp '''
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void func(Carbon::Class1* _Nonnull);
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''';
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fn Caller(p: Class1*) {
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Cpp.func(p);
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}
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