| commit | 8cd8ae781aa06b54a31cedfddd1aa962553cad38 | [log] [tgz] |
|---|---|---|
| author | Devin Jeanpierre <jeanpierreda@google.com> | Wed Jun 29 18:59:40 2022 -0700 |
| committer | Copybara-Service <copybara-worker@google.com> | Wed Jun 29 19:00:10 2022 -0700 |
| tree | 26c539997f1a1a6425c0e4d5ee49c72305f98587 | |
| parent | 5c6549f924b9f0cbaf38462a1b8dd2f473f15723 [diff] |
Use `Rc` for items in the `IR`, and `RsTypeKind`. This way, we no longer need to keep track of `IR` lifetime throughout every type. Additionally, it becomes possible to migrate `RsTypeKind` into `IR` itself, or -- as I intend to do in a followup CL -- inside Salsa, which cannot use references, as it doesn't allow the salsa db to have lifetime parameters. `Rc` copies are hella cheap, so this seems nice. Even if the performance cost were larger (for example, `Arc` instead of `Rc`), we actually do very few copies, so we should expect this to remain not-a-big-deal forever. The only copy we should expect is when we actually create the `RsTypeKinds`, which was already expensive and should (ideally) only happen once. (It currently can happen a lot, but...) PiperOrigin-RevId: 458112800
Extremely experimental interop tooling 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.
$ 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