| commit | fd2d10f7407280a8d9be86bac2799a4146a1dbcd | [log] [tgz] |
|---|---|---|
| author | Martin Brænne <mboehme@google.com> | Mon Jul 10 04:00:55 2023 -0700 |
| committer | Copybara-Service <copybara-worker@google.com> | Mon Jul 10 04:01:24 2023 -0700 |
| tree | 256082a8f049df110cc21c8945e3e7c4dfe0324e | |
| parent | ce3b92d8fab06221b543c1169b916f225695039a [diff] |
[lifetime_annotations] Treat function type aliases consistently with other aliases. This fixes a crash repro recently added to rs_bindings_from_cc. The crash ultimately resulted from `Importer::ConvertType()` trying to descend into the defintion of the type alias while the `ValueLifetimes` in the `lifetimes` parameter did not contain lifetimes for the definition of the type alias. As defense in depth, add an assertion to `Importer::ConvertType()` that would have caught this inconsistency at an earlier stage. PiperOrigin-RevId: 546825633 Change-Id: Ife2d4f12dfe41bae635d7c1516604cfb49d5df19
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