kleaf/impl/hermetic_toolchain.bzl

# Copyright (C) 2023 The Android Open Source Project
#
# 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.

"""Utilities for using `//build/kernel:hermetic_tools_toolchain_type`."""

visibility("//build/kernel/kleaf/...")

_TOOLCHAIN_TYPE = Label("//build/kernel:hermetic_tools_toolchain_type")

def _get(ctx):
    """Returns the resolved toolchain information.

    Args:
        ctx: ctx. The rule must contain
            ```
            toolchains = [
                hermetic_toolchain.type,
            ]
            ```

    Returns:
        _HermeticToolchainInfo (see hermetic_tools.bzl).
    """
    return ctx.toolchains[_TOOLCHAIN_TYPE].hermetic_toolchain_info

hermetic_toolchain = struct(
    type = _TOOLCHAIN_TYPE,
    get = _get,
)