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# 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(":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],
},
),
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,
),
"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.
""",
)
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