| commit | 7187dcf3a6ec9bb5f0d64d91f769f8c5807f2302 | [log] [tgz] |
|---|---|---|
| author | Martin Brænne <mboehme@google.com> | Tue Dec 12 23:10:43 2023 -0800 |
| committer | Copybara-Service <copybara-worker@google.com> | Tue Dec 12 23:11:57 2023 -0800 |
| tree | 3557e852ffdbb3c3a1c952cab72608e368eb9683 | |
| parent | 1cec4a8d5adcad4afe2fba36a7a8a2b96150cae3 [diff] |
[nullability] Smart pointers: Implement `weak_ptr::lock()`. This is the one `weak_ptr` operation that we do want to implement, as we want the analysis to "know" that the return value of `lock()` is nullable and therefore needs to be checked. PiperOrigin-RevId: 590464166 Change-Id: I48c5f43ca235273e82f425ec0e966d0fd8136e11
Crubit is a 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