| commit | 2245db2b43afef3194b6f75dcdbb35d464f9ed86 | [log] [tgz] |
|---|---|---|
| author | Sam McCall <sammccall@google.com> | Mon Apr 17 06:50:25 2023 -0700 |
| committer | Copybara-Service <copybara-worker@google.com> | Mon Apr 17 06:51:09 2023 -0700 |
| tree | e7ea0a0b5a921df8bfeefdaa45985173ee4f31db | |
| parent | edd7d33c450d20d73c19b2cbfca0278d032c6409 [diff] |
Reland "Extend non-flow-sensitive transfer for CastExpr" This used to crash when casting nullptr to a type alias, due to a violated invariant about the nullability vector size. This was fixed by "Handle aliases (and all sugar) in type => nullability vector computation". Added a test for this case. PiperOrigin-RevId: 524833947
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