# Copyright Materialize, Inc. and contributors. 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 in the LICENSE file at the
# root of this repository, or online 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.

"""
Registering toolchains.

We should only be _manually_ registering esoteric toolchains, more common
toolchains like C or Rust should be handled by a higher level rule set, e.g.
[`toolchains_llvm`](https://github.com/bazel-contrib/toolchains_llvm) or
[`rules_rust`](https://github.com/bazelbuild/rules_rust) respectively.

Note: These registrations live here, and not in the `WORKSPACE` file or a
`.bzl` file because of Bazel limitations.

See: <https://bazel.build/extending/toolchains>
"""

load("@rules_rust_bindgen//:defs.bzl", "rust_bindgen_toolchain")

# Rust Bindgen Toolchains
#
# [`bindgen`](https://github.com/rust-lang/rust-bindgen) automatically generates Rust FFI
# bindings to C libraries using `clang`. `rules_rust` provides the `bindgen` CLI tool
# and we need to provide the necessary parts of a `clang` toolchain.

# Darwin aarch64
rust_bindgen_toolchain(
    name = "bindgen_toolchain_darwin__aarch64",
    bindgen = "@rules_rust_bindgen//3rdparty:bindgen",
    clang = "@rust_bindgen__darwin_aarch64//:clang",
    libclang = "@rust_bindgen__darwin_aarch64//:libclang",
    libstdcxx = "@rust_bindgen__darwin_aarch64//:libc++",
)

toolchain(
    name = "rust_bindgen_toolchain__darwin_aarch64",
    exec_compatible_with = [
        "@platforms//os:macos",
    ],
    toolchain = "bindgen_toolchain_darwin__aarch64",
    toolchain_type = "@rules_rust_bindgen//:toolchain_type",
    visibility = ["//visibility:public"],
)

# Darwin x86_64
rust_bindgen_toolchain(
    name = "bindgen_toolchain_darwin__x86_64",
    bindgen = "@rules_rust_bindgen//3rdparty:bindgen",
    clang = "@rust_bindgen__darwin_x86_64//:clang",
    libclang = "@rust_bindgen__darwin_x86_64//:libclang",
    libstdcxx = "@rust_bindgen__darwin_x86_64//:libc++",
)

toolchain(
    name = "rust_bindgen_toolchain__darwin_x86_64",
    exec_compatible_with = [
        "@platforms//os:macos",
        "@platforms//cpu:x86_64",
    ],
    toolchain = "bindgen_toolchain_darwin__x86_64",
    toolchain_type = "@rules_rust_bindgen//:toolchain_type",
    visibility = ["//visibility:public"],
)

# Linux aarch64
rust_bindgen_toolchain(
    name = "bindgen_toolchain_linux__aarch64",
    bindgen = "@rules_rust_bindgen//3rdparty:bindgen",
    clang = "@rust_bindgen__linux_aarch64//:clang",
    libclang = "@rust_bindgen__linux_aarch64//:libclang",
    libstdcxx = "@rust_bindgen__linux_aarch64//:libc++",
)

toolchain(
    name = "rust_bindgen_toolchain__linux_aarch64",
    exec_compatible_with = [
        "@platforms//os:linux",
        "@platforms//cpu:aarch64",
    ],
    toolchain = "bindgen_toolchain_linux__aarch64",
    toolchain_type = "@rules_rust_bindgen//:toolchain_type",
    visibility = ["//visibility:public"],
)

# Linux x86_64
rust_bindgen_toolchain(
    name = "bindgen_toolchain_linux__x86_64",
    bindgen = "@rules_rust_bindgen//3rdparty:bindgen",
    clang = "@rust_bindgen__linux_x86_64//:clang",
    libclang = "@rust_bindgen__linux_x86_64//:libclang",
    libstdcxx = "@rust_bindgen__linux_x86_64//:libc++",
)

toolchain(
    name = "rust_bindgen_toolchain__linux_x86_64",
    exec_compatible_with = [
        "@platforms//os:linux",
        "@platforms//cpu:x86_64",
    ],
    toolchain = "bindgen_toolchain_linux__x86_64",
    toolchain_type = "@rules_rust_bindgen//:toolchain_type",
    visibility = ["//visibility:public"],
)