| # 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 py_cc_toolchain rule. |
| |
| NOTE: This is a beta-quality feature. APIs subject to change until |
| https://github.com/bazelbuild/rules_python/issues/824 is considered done. |
| """ |
| |
| load("@rules_cc//cc:defs.bzl", "CcInfo") |
| load(":py_cc_toolchain_info.bzl", "PyCcToolchainInfo") |
| |
| def _py_cc_toolchain_impl(ctx): |
| py_cc_toolchain = PyCcToolchainInfo( |
| headers = struct( |
| providers_map = { |
| "CcInfo": ctx.attr.headers[CcInfo], |
| "DefaultInfo": ctx.attr.headers[DefaultInfo], |
| }, |
| ), |
| libs = struct( |
| providers_map = { |
| "CcInfo": ctx.attr.libs[CcInfo], |
| "DefaultInfo": ctx.attr.libs[DefaultInfo], |
| }, |
| ), |
| python_version = ctx.attr.python_version, |
| ) |
| return [platform_common.ToolchainInfo( |
| py_cc_toolchain = py_cc_toolchain, |
| )] |
| |
| py_cc_toolchain = rule( |
| implementation = _py_cc_toolchain_impl, |
| attrs = { |
| "headers": attr.label( |
| doc = ("Target that provides the Python headers. Typically this " + |
| "is a cc_library target."), |
| providers = [CcInfo], |
| mandatory = True, |
| ), |
| "libs": attr.label( |
| doc = ("Target that provides the Python runtime libraries for linking. " + |
| "Typically this is a cc_library target of `.so` files."), |
| providers = [CcInfo], |
| mandatory = True, |
| ), |
| "python_version": attr.string( |
| doc = "The Major.minor Python version, e.g. 3.11", |
| mandatory = True, |
| ), |
| }, |
| doc = """\ |
| A toolchain for a Python runtime's C/C++ information (e.g. headers) |
| |
| This rule carries information about the C/C++ side of a Python runtime, e.g. |
| headers, shared libraries, etc. |
| """, |
| ) |