| # Copyright 2023 The Bazel Authors. All rights reserved. |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| """Implementation of current_py_cc_headers rule.""" |
| |
| load("@rules_cc//cc:defs.bzl", "CcInfo") |
| |
| def _current_py_cc_headers_impl(ctx): |
| py_cc_toolchain = ctx.toolchains["//python/cc:toolchain_type"].py_cc_toolchain |
| return py_cc_toolchain.headers.providers_map.values() |
| |
| current_py_cc_headers = rule( |
| implementation = _current_py_cc_headers_impl, |
| toolchains = ["//python/cc:toolchain_type"], |
| provides = [CcInfo], |
| doc = """\ |
| Provides the currently active Python toolchain's C headers. |
| |
| This is a wrapper around the underlying `cc_library()` for the |
| C headers for the consuming target's currently active Python toolchain. |
| |
| To use, simply depend on this target where you would have wanted the |
| toolchain's underlying `:python_headers` target: |
| |
| ```starlark |
| cc_library( |
| name = "foo", |
| deps = ["@rules_python//python/cc:current_py_cc_headers"] |
| ) |
| ``` |
| """, |
| ) |