| commit | 3e1cd484455c41e6e86b42448f7a96739080407a | [log] [tgz] |
|---|---|---|
| author | Martin Brænne <mboehme@google.com> | Thu Oct 26 06:51:31 2023 -0700 |
| committer | Copybara-Service <copybara-worker@google.com> | Thu Oct 26 06:52:19 2023 -0700 |
| tree | 8d081e3b5f2ab5d26dd94d7dfc92c5de388598a4 | |
| parent | e1bc97c8020dc2ba05c546fb6faa6f9a68074e18 [diff] |
[nullability] Allow nullability properties to be "top". This is preparatory work for pointer widening; I'm submitting it for review separately because: * It separates this API change from the pointer widening itself. * It shows that the API change is a no-op in terms of behavior (though note that, so far, we aren't covering the cases where the nullability properties are "top" -- this will come with the pointer widening). PiperOrigin-RevId: 576854948 Change-Id: I3b13750193e682d831f930cb8fe030ec56b806a0
Crubit is an experimental bidirectional bindings generator for C++ and Rust.
Please don‘t use, this is an experiment and we don’t yet know where will it take us. There will be breaking changes without warning. Unfortunately, we can't take contributions at this point.
Crubit allows for C++ code and Rust code to call each other without manually wrapping the APIs in an FFI-friendly interop layer. For example, a C++ function like this:
bool IsAbsPath(std::string_view path);
... becomes callable from Rust as if it were defined as:
pub fn IsAbsPath(path: std::string_view) -> bool {...}
Crubit automatically generates ABI-compatible bindings for structs (which can be passed both by value and by reference), functions, and methods, for a large variety of types. (Trivial types, nontrivial types, templated types, etc.)
$ apt install clang lld bazel $ git clone git@github.com:google/crubit.git $ cd crubit $ bazel build --linkopt=-fuse-ld=/usr/bin/ld.lld //rs_bindings_from_cc:rs_bindings_from_cc_impl
$ git clone https://github.com/llvm/llvm-project $ cd llvm-project $ CC=clang CXX=clang++ cmake -S llvm -B build -DLLVM_ENABLE_PROJECTS='clang' -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install $ cmake --build build -j $ # wait... $ cmake --install build $ cd ../crubit $ LLVM_INSTALL_PATH=../llvm-project/install bazel build //rs_bindings_from_cc:rs_bindings_from_cc_impl