Support custom path to crubit/rs_bindings_from_cc/support directory.

The generated thunks and other code in ..._rs_api_impl.cc might depend
on Crubit's support headers like so:

    #include "third_party/crubit/rs_bindings_from_cc/support/..."

Before this CL, `src_code_gen.rs` would hardcode the path to the support
directory.  After this CL, this is replaced with an argument of a new
cmdline parameter: --crubit_support_path.

PiperOrigin-RevId: 447003312
9 files changed
tree: 54d3e9f9c35ef91b6169985271dc844e052e6f8a
  1. cc_template/
  2. common/
  3. docs/
  4. lifetime_annotations/
  5. migrator/
  6. rs_bindings_from_cc/
  7. BUILD
  8. CODE_OF_CONDUCT
  9. CONTRIBUTING
  10. LICENSE
  11. README.md
README.md

Crubit: C++/Rust Bidirectional Interop Tool

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.